<p>In this tutorial I will show you how you can make an LED fade using Arduino.</p><p><strong>Materials Needed:</strong></p><ul><li>&nbsp;Arduino Board (e.g., uno)</li><li>&nbsp;Breadboard and jumper wires</li><li>&nbsp;LED</li><li>&nbsp;Resistor (270Ω)</li><li>&nbsp;USB cable for Arduino</li><li>&nbsp;Arduino IDE installed on your computer</li></ul><h2>Step 1: Set Up the Hardware:</h2><ol style="list-style-type:decimal;"><li>&nbsp;Connect the short leg (cathode) of the LED to GND on the Arduino.<br>&nbsp;</li><li>Connect the long leg (anode) of the LED to a resistor (270Ω) and to pin 13 on the Arduino. (Use a jumper wire for it to reach the Arduino pin)</li></ol><p>Before we continue, here is what I used and how I arranged the components on the breadboard.<br><br><img src="https://api.amanieric.com/uploads/IMG_20240125_152118_61c2d6253d.jpg" alt="IMG_20240125_152118.jpg" srcset="https://api.amanieric.com/uploads/thumbnail_IMG_20240125_152118_61c2d6253d.jpg 207w,https://api.amanieric.com/uploads/small_IMG_20240125_152118_61c2d6253d.jpg 500w,https://api.amanieric.com/uploads/medium_IMG_20240125_152118_61c2d6253d.jpg 750w,https://api.amanieric.com/uploads/large_IMG_20240125_152118_61c2d6253d.jpg 1000w," sizes="100vw"></p><p><img src="https://api.amanieric.com/uploads/IMG_20240126_142222_c7ab823207.jpg" alt="IMG_20240126_142222.jpg" srcset="https://api.amanieric.com/uploads/thumbnail_IMG_20240126_142222_c7ab823207.jpg 207w,https://api.amanieric.com/uploads/small_IMG_20240126_142222_c7ab823207.jpg 500w,https://api.amanieric.com/uploads/medium_IMG_20240126_142222_c7ab823207.jpg 750w,https://api.amanieric.com/uploads/large_IMG_20240126_142222_c7ab823207.jpg 1000w," sizes="100vw"></p><h2>Step 2: Connect your Arduino board to your computer:</h2><p>Use the appropriate cable for your Arduino board.</p><h2>Step 3: Writing the Code:</h2><pre><code class="language-C++">// Fadinf a single LED
int ledPin = 13; // Pin number for the LED

void setup() {
  pinMode(ledPin, OUTPUT); // Set the LED pin as an output

}

void loop() {
 for (int brightness = 0; brightness &lt;= 255; brightness++) {
    analogWrite(ledPin, brightness);
    delay(5); // Adjust the delay for the desired fade speed
  }

  // Fade out
  for (int brightness = 255; brightness &gt;= 0; brightness--) {
    analogWrite(ledPin, brightness);
    delay(5); // Adjust the delay for the desired fade speed
  }
}</code></pre><h2>Step 4: Uploading the Code:</h2><p>Make sure that in your Arduino IDE, the correct board is selected, and click on the upload button.</p><p>Your code should be uploaded successfully.</p><p><strong>Test Your Fading LED:</strong><br>Run the uploaded code on your Arduino board, and you should observe the LED fading in and out, creating a smooth fading effect.</p><div class="raw-html-embed"><video width="640" height="360" controls="" autoplay="">
  <source src="https://files.amanieric.com/uploads/vid_20240126_142338_1_e_HJU_59c_T_30906da8ba.mp4" type="video/mp4">
</video></div><p>Congratulations! 🎉 You have successfully created a fading LED with Arduino. Happy coding! ✨</p>

Fading an LED with Arduino

<p>In this tutorial, we'll go through the process of blinking multiple LEDs using the Arduino uno R4 WIFI (steps same for most Arduino boards) and a breadboard.<br><br>Before we get started check previous article on&nbsp;<br>how to blink a single LED 👉🏾&nbsp;<a href="https://amanieric.com/blog/blinking-an-led-with-arduino">here</a></p><p>&nbsp;Let's get started!</p><p><strong>Materials Needed:</strong></p><ul><li>&nbsp;Arduino Board (Ex: uno)</li><li>&nbsp;Breadboard and 6 jumper wires</li><li>&nbsp;10mm LED (can be any LED but if its not 10mm, the resistor to be used will differ accordingly)</li><li>&nbsp;Resistor (150Ω - 270Ω) // this depends on the LED used. I used 10mm LED that's why</li><li>&nbsp;USB cable for Arduino</li><li>&nbsp;Arduino IDE installed on your computers</li></ul><p>&nbsp;</p><h2>Step 1: Set Up the Hardware:</h2><p>1. Connect the short leg (cathode) of the LED to GND on the Arduino.</p><p>2. Connect the long leg (anode) of the LED to &nbsp;resistor ( 270Ω) and to pin 13 on the Arduino. (<i>Use a jumper wire for it to reach to Arduino pin</i>)<br>&nbsp;repeat the same for other Arduino digital pins as well 12, 11, 10, 9<br><br>Before we continue here is what I used and how it looks like on the board.<br>&nbsp;</p><p><img src="https://api.amanieric.com/uploads/IMG_20240126_140017_3e93ffc7d0.jpg" alt="IMG_20240126_140017.jpg" srcset="https://api.amanieric.com/uploads/thumbnail_IMG_20240126_140017_3e93ffc7d0.jpg 207w,https://api.amanieric.com/uploads/small_IMG_20240126_140017_3e93ffc7d0.jpg 500w,https://api.amanieric.com/uploads/medium_IMG_20240126_140017_3e93ffc7d0.jpg 750w,https://api.amanieric.com/uploads/large_IMG_20240126_140017_3e93ffc7d0.jpg 1000w," sizes="100vw"></p><p><img src="https://api.amanieric.com/uploads/IMG_20240126_135613_72fd75b60e.jpg" alt="IMG_20240126_135613.jpg" srcset="https://api.amanieric.com/uploads/thumbnail_IMG_20240126_135613_72fd75b60e.jpg 207w,https://api.amanieric.com/uploads/small_IMG_20240126_135613_72fd75b60e.jpg 500w,https://api.amanieric.com/uploads/medium_IMG_20240126_135613_72fd75b60e.jpg 750w,https://api.amanieric.com/uploads/large_IMG_20240126_135613_72fd75b60e.jpg 1000w," sizes="100vw"></p><p>You can connect the components differently on breadboard as long as you follow the same circuit its fine.</p><h2>Step 2: Connect your Arduino board to your computer</h2><p>Cables can be different depending on Arduino board. Some can use USB and others Type-C cables. Can connect depending on your board.</p><h2>Step 3: Writing the codes</h2><p>In your Arduino IDE add those codes.<br>&nbsp;</p><pre><code class="language-C++">// Blinking multiple LEDs
int ledPin1 = 13; // Pin number for the LED1
int ledPin2 = 12; // Pin number for the LED2
int ledPin3 = 11; // Pin number for the LED3
int ledPin4 = 10; // Pin number for the LED4
int ledPin5 = 9; // Pin number for the LED5

void setup() {
  pinMode(ledPin1, OUTPUT); // Set the LED1 pin as an output
  pinMode(ledPin2, OUTPUT); // Set the LED2 pin as an output
  pinMode(ledPin3, OUTPUT); // Set the LED3 pin as an output
  pinMode(ledPin4, OUTPUT); // Set the LED4 pin as an output
  pinMode(ledPin5, OUTPUT); // Set the LED5 pin as an output
}

void loop() {
  digitalWrite(ledPin1, HIGH); // Turn the LED1 on
  delay(50); // Wait for 50 milliseconds
  digitalWrite(ledPin1, LOW); // Turn the LED1 off
  delay(50); // Wait for 50 milliseconds
    digitalWrite(ledPin2, HIGH); // Turn the LED2 on
  delay(50); // Wait for 50 milliseconds
  digitalWrite(ledPin2, LOW); // Turn the LED2 off
  delay(50); // Wait for 50 milliseconds
    digitalWrite(ledPin3, HIGH); // Turn the LED3 on
  delay(50); // Wait for 50 milliseconds
  digitalWrite(ledPin3, LOW); // Turn the LED3 off
  delay(50); // Wait for 50 milliseconds
    digitalWrite(ledPin4, HIGH); // Turn the LED4 on
  delay(50); // Wait for 50 milliseconds
  digitalWrite(ledPin4, LOW); // Turn the LED4 off
  delay(50); // Wait for 50 milliseconds
    digitalWrite(ledPin5, HIGH); // Turn the LED5 on
  delay(50); // Wait for 50 milliseconds
  digitalWrite(ledPin5, LOW); // Turn the LED5 off
  delay(50); // Wait for 50 milliseconds
}</code></pre><h2>Step 4: Uploading the codes</h2><p>Now, make sure that in your Arduino IDE the correct board is selected and click on the upload button.</p><p>Your codes should be uploaded successfully.<br><br>&nbsp;Lets test 🚀<br>&nbsp;</p><div class="raw-html-embed"><video width="640" height="360" controls="" autoplay="">
  <source src="https://files.amanieric.com/uploads/blink_multiple_leds_demo_0a79e8b6be.mp4" type="video/mp4">
</video></div><p>If you are very comfortable doing this, you can go ahead and introduce using arrays for pins declaration and use of fucntions for blinking LEDs.&nbsp;</p><p>ex:</p><pre><code class="language-C++">void blinkLeds(){
/*add your logic for blink LEDs here and call this function in*/
}</code></pre><p>and call the function in void loop:</p><pre><code class="language-C++">void loop(){
  blinkLeds();
}</code></pre><p>Congratulation 🎉, that's how to blink multiple LEDs with Arduino.&nbsp;</p><p>Happy coding ✨</p>

Blinking multiple LEDs with Arduino

<p>Blinking an LED is a fundamental project for Arduino enthusiasts. In this tutorial, we'll go through the process of blinking an LED using the Arduino uno R4 WIFI (steps same for most Arduino boards) and a breadboard. Let's get started!</p><h2><strong>Materials Needed:</strong></h2><ul><li>&nbsp;Arduino Board (Ex: uno)</li><li>&nbsp;Breadboard and jumper wires</li><li>&nbsp;LED</li><li>&nbsp;Resistor (270Ω) // this depends on the LED used. I used 10mm LED that's why</li><li>&nbsp;USB cable for Arduino</li><li>&nbsp;Arduino IDE installed on your computer</li></ul><p>&nbsp;</p><h2>Step 1: Set Up the Hardware:</h2><p>1. Connect the short leg (cathode) of the LED to GND on the Arduino.</p><p>2. Connect the long leg (anode) of the LED to &nbsp;resistor ( 270Ω) and to pin 13 on the Arduino. &nbsp;(<i>Use a jumper wire for it to reach to Arduino pin</i>)<br><br><br>Before we continue here is what I used and how it looks like on the board.<br><br><img src="https://api.amanieric.com/uploads/IMG_20240125_152118_61c2d6253d.jpg" alt="IMG_20240125_152118.jpg" srcset="https://api.amanieric.com/uploads/thumbnail_IMG_20240125_152118_61c2d6253d.jpg 207w,https://api.amanieric.com/uploads/small_IMG_20240125_152118_61c2d6253d.jpg 500w,https://api.amanieric.com/uploads/medium_IMG_20240125_152118_61c2d6253d.jpg 750w,https://api.amanieric.com/uploads/large_IMG_20240125_152118_61c2d6253d.jpg 1000w," sizes="100vw"><img src="https://api.amanieric.com/uploads/Screenshot_2024_01_25_at_16_30_07_3086f5cf91.png" alt="Screenshot 2024-01-25 at 16.30.07.png" srcset="https://api.amanieric.com/uploads/thumbnail_Screenshot_2024_01_25_at_16_30_07_3086f5cf91.png 192w,https://api.amanieric.com/uploads/small_Screenshot_2024_01_25_at_16_30_07_3086f5cf91.png 500w,https://api.amanieric.com/uploads/medium_Screenshot_2024_01_25_at_16_30_07_3086f5cf91.png 750w,https://api.amanieric.com/uploads/large_Screenshot_2024_01_25_at_16_30_07_3086f5cf91.png 1000w," sizes="100vw"><br>You can connect the components differently on breadboard as long as you follow the same circuit its fine.</p><h2><br>Step 2: Connect your Arduino board to your computer</h2><p>Cables can be different depending on Arduino board. Some can use USB and others Type-C cables. Can connect depending on your board.</p><h2><br>Step 3: Writing the codes</h2><p>In your Arduino IDE add those codes.<br>&nbsp;</p><pre><code class="language-C++">// Blinking a single LED
int ledPin = 13; // Pin number for the LED

void setup() {
  pinMode(ledPin, OUTPUT); // Sets the LED pin as an output
}

void loop() {
  digitalWrite(ledPin, HIGH); // Turn the LED on
  delay(1000); // Wait for 1 second
  digitalWrite(ledPin, LOW); // Turn the LED off
  delay(1000); // Wait for 1 second
}</code></pre><p>&nbsp;</p><h2>Step 4: Uploading the codes</h2><p>Now, make sure that in your Arduino IDE the correct board is selected and click on the upload button.</p><p><br><img src="https://api.amanieric.com/uploads/Screenshot_2024_01_25_at_15_40_28_17379b7247.png" alt="Screenshot 2024-01-25 at 15.40.28.png" srcset="https://api.amanieric.com/uploads/thumbnail_Screenshot_2024_01_25_at_15_40_28_17379b7247.png 245w,https://api.amanieric.com/uploads/small_Screenshot_2024_01_25_at_15_40_28_17379b7247.png 500w,https://api.amanieric.com/uploads/medium_Screenshot_2024_01_25_at_15_40_28_17379b7247.png 750w," sizes="100vw"><br>&nbsp;</p><p>Your codes should be uploaded successfully.<br><br>&nbsp;Lets test 🚀<br>&nbsp;</p><div class="raw-html-embed"><video width="640" height="360" controls="" autoplay="">
  <source src="https://files.amanieric.com/uploads/led_blink_test_arduino_9153e295b5.mp4" type="video/mp4">
</video></div><p><br>Congratulation 🎉, that's how to blink an LED with Arduino.&nbsp;<br>Happy coding ✨</p>

Blinking an LED with Arduino

<p style="margin-left:0px;">Recently, I acquired an ESP32-S3 UNO, and upon receiving it, I proceeded to test its functionality. Although it powered on normally, I encountered an issue while attempting to upload my code, receiving the error message: "A fatal error occurred: Unable to verify flash chip connection (No serial data received.)"</p><p>&nbsp;</p><p style="margin-left:0px;">Assuming a potential fault with one of the boards, I tested a second, identical board, only to encounter the same error.&nbsp;<br>&nbsp;</p><p><img src="https://api.amanieric.com/uploads/boards_07471333f4.webp" alt="boards.webp" srcset="https://api.amanieric.com/uploads/thumbnail_boards_07471333f4.webp 207w,https://api.amanieric.com/uploads/small_boards_07471333f4.webp 500w,https://api.amanieric.com/uploads/medium_boards_07471333f4.webp 750w,https://api.amanieric.com/uploads/large_boards_07471333f4.webp 1000w," sizes="100vw"></p><p style="margin-left:0px;"><br><br><br>This led me to conclude that the issue might lie elsewhere.</p><p style="margin-left:0px;">I experimented with various Type-C cables, connected to different ports, and ensured that the correct board was selected in the Arduino IDE. Despite these efforts, the issue persisted.</p><p style="margin-left:0px;">Numerous solutions found online proved unhelpful. However, during my research, I came across a discussion on the Arduino Forum related to a similar issue <a href="https://forum.arduino.cc/t/a-fatal-error-occurred-failed-to-connect-to-esp32-no-serial-data-received/1071486">Arduino Forum Link</a>. While the forum provided valuable insights, none of the suggested solutions seemed to work. Nonetheless, it's worth exploring these resources as your situation might differ.</p><p style="margin-left:0px;">Importantly, I want to note that there was no issue with my codes. I had a simple blinking LED program as follows:</p><pre><code class="language-C++">int ledPin = 12;


void setup() {
pinMode(ledPin, OUTPUT);

}

void loop() {

digitalWrite(ledPin, HIGH);
delay(200);
digitalWrite(ledPin, LOW);
delay(200);

}

</code></pre><p style="margin-left:0px;">In my continued troubleshooting efforts, I discovered a resolution that worked:</p><p style="margin-left:0px;">I changed the upload speed in the Arduino IDE tools settings from <strong>921600</strong> to <strong>115200</strong>.<br><br>&nbsp;</p><figure class="image image_resized" style="width:75%;"><img src="https://api.amanieric.com/uploads/upload_speed_6c2c4db5ea.webp" alt="upload-speed.webp" srcset="https://api.amanieric.com/uploads/thumbnail_upload_speed_6c2c4db5ea.webp 184w,https://api.amanieric.com/uploads/small_upload_speed_6c2c4db5ea.webp 500w,https://api.amanieric.com/uploads/medium_upload_speed_6c2c4db5ea.webp 750w,https://api.amanieric.com/uploads/large_upload_speed_6c2c4db5ea.webp 1000w," sizes="100vw"><figcaption>&nbsp;</figcaption></figure><p style="margin-left:0px;">&nbsp;</p><p style="margin-left:0px;">Here now its working 👇🏾<br><br>&nbsp;</p><div class="raw-html-embed"><video width="640" height="360" controls="" autoplay="">
  <source src="https://files.amanieric.com/uploads/success_d7389ae8be.mp4" type="video/mp4">
</video></div><p style="margin-left:0px;">&nbsp;</p><div class="raw-html-embed"><video width="640" height="360" controls="" autoplay="">
  <source src="https://files.amanieric.com/uploads/ESP_32_S3_3763fe3b72.mp4" type="video/mp4">
</video></div><p><br>&nbsp;</p>

A fatal error occurred: Unable to verify flash chip connection (No serial data received.)

<p>In the ever-evolving landscape of web design, responsiveness has become a key consideration. As a beginner, you may have heard of media queries as the go-to solution for achieving responsiveness. However, there's an emerging technique that offers a more streamlined approach: clamp.&nbsp;<br>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p><br>In this article, we'll delve into the benefits of using clamp over media queries, providing clear examples that will empower you to take your responsiveness game to the next level.</p><h2>Unleashing Responsive Magic:</h2><p style="margin-left:0px;">Media queries can be complex, requiring multiple lines of code to handle various screen sizes. Using Clamp is a game-changing technique with a simple syntax that condenses your code and offers limitless potential. Let's explore a practical example to witness Clamp's magic in action:<br>&nbsp;</p><pre><code class="language-CSS">/* Media Queries */
@media screen and (max-width: 768px) {
    .element {
        font-size: 14px;
    }
}

/* Clamp */
.element {
    font-size: clamp(12px, 4vw, 16px);
}</code></pre><p>By using clamp ☝🏾 , we specify a range of acceptable values for the font size. The <strong>4vw</strong> unit allows the font size to scale proportionally with the viewport width. With just a single line of code, we achieve a fluid and responsive typography that adapts seamlessly to different screen sizes.</p><h2>Fluid Typography:</h2><p><strong>Typography</strong> is a vital element in web design, influencing the appeal and coherence of user experiences. When it comes to managing font sizes across breakpoints, media queries can be burdensome.<br>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p><br>Let's explore a concise example that reveals the enchanting and responsive nature of clamp:</p><pre><code class="language-CSS">
h1 {
    font-size: clamp(24px, 6vw, 48px);
}</code></pre><h2><img src="https://api.amanieric.com/uploads/Screen_Recording_2023_07_07_at_22_47_08_891c3e086a.gif" alt="clamp demo gif">Dynamic Element Sizing:</h2><p>While media queries are suitable for handling layout changes, they often require predefined breakpoints, leaving room for inconsistencies. Clamp offers a more flexible approach to sizing elements by allowing you to define a range. Let's explore a scenario:</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><pre><code class="language-CSS">.container {
    width: clamp(300px, 50%, 600px);
}</code></pre><p>By using clamp, the container width is set to span 50% of the available space but never exceeding 600 pixels or falling below&nbsp;<br>300 pixels. This ensures the element maintains a balanced and visually pleasing size, irrespective of the viewport dimensions.</p><p>&nbsp;</p><h2>Browser Support</h2><p>Clamp has gained significant traction in the web development community. With solid support from major browsers, including Chrome, Firefox, Safari, and Edge (source: Can I use), clamp has become a go-to solution for achieving responsiveness. Its widespread adoption showcases its effectiveness in simplifying design and enhancing user experiences.<br>Check full report &nbsp;<a href="https://caniuse.com/?search=clamp()"><span style="color:hsl(210,75%,60%);">here</span></a><span style="color:hsl(210,75%,60%);">&nbsp;</span></p><h2>Harmonious Blend:</h2><p>While clamp proves to be a game-changer in responsiveness, it doesn't render media queries obsolete. In fact, these techniques complement each other perfectly. Media queries excel in handling broader layout changes, while clamp enhances the finer details.&nbsp;<br><br>By employing a hybrid approach, you can create a responsive design that covers both structural and visual aspects.<br><br>Responsive web design is no longer a luxury; it's an essential aspect of modern web development. As a beginner, embracing Clamp as an alternative to media queries can unlock a world of possibilities.&nbsp;<br><br>By simplifying your code, achieving fluid typography, enabling dynamic element sizing, and leveraging a combined approach, you'll be on your way to crafting exceptional user experiences that seamlessly adapt to any device. So, why settle for static designs when you can embrace the power of clamp and elevate your responsiveness to new heights?<br>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p><br>&nbsp;</p>

Why you should use Clamp over Media Queries

<p style="margin-left:0px;">In web development, images play a crucial role in enhancing the overall user experience of a website. However, it's not uncommon for images to fail to load due to various reasons such as slow network connections, server downtime, or broken links. When an image fails to load, it can cause frustration to the user and result in a poor user experience. In this blog post, we will explore how to implement a custom solution to display a placeholder image for failed Next.js image loads, thus improving the user experience.</p><h2 style="margin-left:0px;">Step 1: Create a Placeholder Image</h2><p style="margin-left:0px;">The first step is to create a placeholder image that will be displayed when the original image fails to load. The placeholder image should be lightweight and visually appealing, providing users with a pleasant experience while waiting for the original image to load. You can create a placeholder image using online tools or design software such as Adobe Photoshop or Sketch.</p><h2 style="margin-left:0px;">Step 2: Implement the Custom Next.js Image Component</h2><p style="margin-left:0px;">The second step is to create a custom Next.js image component that will display the placeholder image when the original image fails to load. To do this, we need to leverage the Next.js Image component's onError event handler. The onError event is triggered when the original image fails to load, allowing us to display the placeholder image instead.</p><p style="margin-left:0px;">Here's an example code snippet:<br><br>&nbsp;</p><div class="raw-html-embed"><div class="code-title-container"><span class="code-title">CustomImage.tsx</span></div></div><pre><code class="language-tsx">import { CSSProperties } from "@mui/styles";
import Image, { ImageLoaderProps } from "next/image";
import { useState } from "react";

declare const VALID_LOADING_VALUES: readonly ["lazy", "eager", undefined];
declare type LoadingValue = (typeof VALID_LOADING_VALUES)[number];
export type { ImageLoaderProps };
export declare type ImageLoader = (p: ImageLoaderProps) =&gt; string;
declare type PlaceholderValue = "blur" | "empty";
declare type OnLoadingComplete = (img: HTMLImageElement) =&gt; void;
export interface StaticImageData {
  src: string;
  height: number;
  width: number;
  blurDataURL?: string;
  blurWidth?: number;
  blurHeight?: number;
}
interface StaticRequire {
  default: StaticImageData;
}
declare type StaticImport = StaticRequire | StaticImageData;
declare type SafeNumber = number | `${number}`;

export type ImageType = {
  src?: string | StaticImport;
  className?: string;
  style?: CSSProperties;
  alt: string;
  width?: SafeNumber | undefined;
  height?: SafeNumber | undefined;
  fill?: boolean | undefined;
  loader?: ImageLoader | undefined;
  quality?: SafeNumber | undefined;
  priority?: boolean | undefined;
  loading?: LoadingValue;
  placeholder?: PlaceholderValue | undefined;
  blurDataURL?: string | undefined;
  onClick?: () =&gt; void;
  unoptimized?: boolean | undefined;
  placeholderImage?: string | StaticImport;
  onLoadingComplete?: OnLoadingComplete | undefined;
  /**
   * @deprecated Use `fill` prop instead of `layout="fill"` or change import to `next/legacy/image`.
   * @see https://nextjs.org/docs/api-reference/next/legacy/image
   */
  layout?: string | undefined;
  /**
   * @deprecated Use `style` prop instead.
   */
  objectFit?: string | undefined;
  /**
   * @deprecated Use `style` prop instead.
   */
  objectPosition?: string | undefined;
  /**
   * @deprecated This prop does not do anything.
   */
  lazyBoundary?: string | undefined;
  /**
   * @deprecated This prop does not do anything.
   */
  lazyRoot?: string | undefined;
} &amp; React.RefAttributes&lt;HTMLImageElement | null&gt;;

const CustomImage = ({
  alt,
  src,
  placeholderImage,
  onClick,
  ...props
}: ImageType) =&gt; {
  const [image, setImage] = useState&lt;string | StaticImport&gt;((src &amp;&amp; src) || "");
  return (
    &lt;Image
      {...props}
      src={image}
      onError={() =&gt; {
        if (placeholderImage) {
          setImage(placeholderImage);
        }
      }}
    /&gt;
  );
};

export default CustomImage;
</code></pre><p style="margin-left:0px;">In the above code, we have created a custom Next.js image component that accepts all the same props as the standard Next.js Image component.&nbsp;<br><br>If the <strong>Image</strong> component encounters an error when trying to load the image, it triggers the <strong>onError</strong> event. In this case, <strong>CustomImage</strong> checks if the <strong>placeholderImage</strong> prop is defined. If it is, the <strong>image</strong> state is updated with the value of the <strong>placeholderImage</strong> prop, and the <strong>Image</strong> component attempts to load this image instead.</p><p style="margin-left:0px;">This custom component provides a way to handle failed image loads by allowing developers to specify a fallback image to display in the event of an error.</p><h2 style="margin-left:0px;">Step 3: Use the Custom Image Component</h2><p style="margin-left:0px;">The final step is to use the custom Next.js image component wherever you want to display images in your application. Simply replace the standard Next.js Image component with the custom component we just created. For example:<br><br>&nbsp;</p><div class="raw-html-embed"><div class="code-title-container"><span class="code-title">HomePage.tsx</span></div></div><pre><code class="language-tsx">import CustomImage from "../components/CustomImage";

const HomePage = () =&gt; {
  return (
    &lt;div&gt;
      &lt;CustomImage
        src="https://example.com/image.png"
        /*image to be displayed if the 
        image providedd as src prop
        fails/errors 👇🏽 */
        placeholderImage="your placeholder image"
        alt="your image alt text"
        width={500}
        height={500}
      /&gt;
    &lt;/div&gt;
  );
};

export default HomePage;</code></pre><p style="margin-left:0px;">In the above code, we've used the custom image component instead of the standard Next.js Image component. If the original image fails to load, the placeholder image will be displayed instead, providing a better user experience.</p><p style="margin-left:0px;"><strong>Conclusion</strong></p><p style="margin-left:0px;">In this blog post, I've explored how to implement a custom solution to display a placeholder image for failed Next.js image loads. By creating a custom image component and using the onError event handler, we can provide users with a better experience when images fail to load. This simple yet effective solution can greatly enhance the overall user experience of your website, making it more user-friendly and accessible.</p>

Implementing a Placeholder Image for Failed Next.js Image Loads: A Custom Solution

<p><strong>Asynchronous programming</strong> can be intimidating for beginners, but fear not! JavaScript comes to the rescue with its async/await syntax, offering a more approachable way to handle asynchronous tasks.&nbsp;<br><br>In this beginner-friendly blog post, we will demystify parallel execution using async/await in a Node.js environment. Let's dive in and unlock the power of running tasks concurrently with JavaScript!</p><p>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><h2>Embracing the Simplicity of async/await:</h2><p>Async/await, introduced in ECMAScript 2017, allows us to write asynchronous code in a more intuitive and synchronous-like manner. It simplifies the handling of promises and asynchronous operations, making our code easier to read and understand.</p><h2>Unlocking Parallel Execution:</h2><p>To unleash the potential of async/await in parallel execution, we can tap into JavaScript's Promise API. A handy method called Promise.all() comes to the rescue, enabling us to run multiple tasks concurrently. Let's explore a beginner-friendly example:</p><pre><code class="language-Javascript">async function runTasksInParallel() {
  const task1 = asyncTask1();
  const task2 = asyncTask2();
  const task3 = asyncTask3();
  
  await Promise.all([task1, task2, task3]);
  
  console.log('Congratulations! All tasks completed successfully.');
}

runTasksInParallel();
</code></pre><p>In the example above, asyncTask1(), asyncTask2(), and asyncTask3() represent individual asynchronous functions. By utilizing Promise.all(), we can await the completion of all tasks concurrently, resulting in better performance.</p><h2>Navigating Error Handling:</h2><p>When working with parallel execution, it's crucial to handle errors effectively. With async/await, we can use the trusty try/catch statement to gracefully manage errors. Let's enhance our previous example to include error handling:</p><pre><code class="language-Javascript">async function runTasksInParallel() {
  try {
    const task1 = asyncTask1();
    const task2 = asyncTask2();
    const task3 = asyncTask3();
  
    await Promise.all([task1, task2, task3]);
  
    console.log('Congratulations! All tasks completed successfully.');
  } catch (error) {
    console.error('Oops! An error occurred while running tasks:', error);
  }
}

runTasksInParallel();
</code></pre><p>By encapsulating the entire async function within a try block and catching any errors in the catch block, we ensure that any errors during the parallel execution are handled gracefully.</p><h2>Unleashing Performance with Parallelism:</h2><p>Parallel execution can significantly boost performance, especially when dealing with time-consuming operations like making multiple API calls or processing large amounts of data. By harnessing the power of async/await and parallel execution, we can tap into JavaScript's full potential for efficient and optimized code execution.</p><h2>Understanding <strong>Promise.allSettled()</strong>:</h2><p>When working with multiple asynchronous tasks, you might come across scenarios where you need to know when all the tasks have settled, regardless of whether they succeeded or failed. JavaScript provides a helpful method called <strong>Promise.allSettled()</strong> that allows you to handle such situations. Let's explore it in detail:<br><br>The Promise.allSettled() method takes an iterable of promises and returns a single promise that is fulfilled with an array of promise settlement results. These settlement results provide information about each individual promise, indicating whether they were fulfilled or rejected.<br>&nbsp;</p><pre><code class="language-Javascript">const promises = [promise1, promise2, promise3];

Promise.allSettled(promises)
 .then((results) =&gt; {
   results.forEach((result, index) =&gt; {
     if (result.status === 'fulfilled') {
       console.log(`Promise ${index + 1} was fulfilled with value:`, result.value);
     } else if (result.status === 'rejected') {
       console.log(`Promise ${index + 1} was rejected with reason:`, result.reason);
     }
   });
 });</code></pre><p><br>In the example above ☝🏾, promises represents an array of asynchronous tasks as promises. By using Promise.allSettled(), we can wait for all the promises to settle. The resulting array results contains settlement information for each promise, including the status (either "fulfilled" or "rejected") and the corresponding value or reason.<br>&nbsp;</p><p><br><br><strong>Congratulations ✨</strong>, you've embarked on a journey to master parallel execution with async/await in JavaScript! With <code><strong>async/await's</strong></code> simplicity and the power of <code><strong>Promise.all()</strong></code>, you're now equipped to write <strong>cleaner</strong>, more <strong>readable</strong>, and <strong>high-performing</strong> code.&nbsp;</p><p><br>As you continue your coding adventures in Node.js, remember to embrace parallel execution to unlock new levels of efficiency and deliver outstanding user experiences. Happy coding! 🎉</p>

Mastering Parallel Execution with async/await in JavaScript (Node.js) for Beginners

<p style="margin-left:0px;">The process by which a web server communicates with a user’s web browser is known as the Hypertext Transfer Protocol (HTTP). This communication is facilitated by ‘nodes’, which are specialised computer programs that are designed to process HTTP requests and responses.</p><p style="margin-left:0px;">One of the most popular nodes is known as ‘<strong>nginx’</strong>, which is an open-source HTTP server that can be used on a variety of operating systems, including Ubuntu.</p><p style="margin-left:0px;">In this article, we will show you how to use node.js and Nginx to serve web development purposes. We will first create a node.js application and then we will configure Nginx to act as a reverse proxy for the node.js application.</p><p style="margin-left:0px;">A <strong>reverse proxy</strong> is a web server that sits between your nodejs server and the internet. It handles all of the incoming traffic and then forwards it to your nodejs server. This has a few benefits:</p><ul style="list-style-type:circle;"><li><span style="color:hsl(0,0%,60%);">It can help reduce the load on your nodejs server, since nginx can handle all of the static content.</span></li><li><span style="color:hsl(0,0%,60%);">It can improve performance, since nginx can cache static content and serve it more quickly.</span></li><li><span style="color:hsl(0,0%,60%);">It can provide security, since nginx can act as a firewall between your server and the internet.</span><br>&nbsp;</li></ul><p>&nbsp;</p><p><span style="font-family:Helvetica, Arial, sans-serif;">The first thing you'll need to do is install nginx and node.js on your server.</span></p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><h2 style="margin-left:0px;"><br><span style="font-family:Helvetica, Arial, sans-serif;">Installing NodeJs (16.x)</span></h2><h4 style="margin-left:0px;">Install curl if not installed&nbsp;</h4><pre><code class="language-bash">sudo apt-get install curl </code></pre><h4>Get node setup</h4><pre><code class="language-bash">curl -fsSL https://deb.nodesource.com/setup_16.x | sudo -E bash - &amp;&amp;\</code></pre><h4>now, lets install node.</h4><pre><code class="language-bash">sudo apt-get install nodejs</code></pre><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><h4>Check if node is successfully installed.</h4><pre><code class="language-bash">node -v</code></pre><p>You should see Node version 16 printend 👇🏽<br><br><img src="https://api.amanieric.com/uploads/node_version_7820f9d32b.png" alt="Node version" srcset="https://api.amanieric.com/uploads/thumbnail_node_version_7820f9d32b.png 245w,https://api.amanieric.com/uploads/small_node_version_7820f9d32b.png 500w," sizes="100vw"><br>&nbsp;</p><h2>Install Nginx</h2><pre><code class="language-bash">sudo apt update
sudo apt install nginx</code></pre><p>Skip the processes above, if you already have the installations ready.</p><h2>Configure our nginx server</h2><p>Once you have both software installed, you'll need to configure nginx to reverse proxy to your node.js server. To do this, you'll need to create a configuration file &nbsp;(<strong>server.conf</strong>) file .<br>&nbsp;</p><pre><code class="language-bash">sudo nano /etc/nginx/sites-available/server.conf</code></pre><h4>and add/paste the following lines:</h4><div class="raw-html-embed"><div class="code-title-container"><span class="code-title">server.conf</span></div></div><pre><code class="language-nginx">server {

    listen 80;

    server_name example.com;

    location / {

        proxy_pass http://localhost:3000;

    }

}</code></pre><p>What does the above codes do?</p><p style="margin-left:0px;">Basically, what we did is configure nginx in a way that all requests that will be made on this domain&nbsp;<br>`<span style="color:hsl(210,75%,60%);">example.com</span>` we will pass the proxy to <span style="color:hsl(210,75%,60%);"><code><strong>http://localhost:3000</strong></code></span> to be served.<br><br><i>&nbsp;You can replace the domain with your domain name, but make sure that the domain name points to the same server and is not &nbsp;being used by any other nginx configuration on your server. also change </i><span style="color:hsl(210,75%,60%);"><code><strong>http://localhost:3000</strong></code></span> to node http uri your node server is running on .</p><h2 style="margin-left:0px;">Enable the site</h2><p style="margin-left:0px;">To activate a specific virtual host file, utilize the 'ln' command to create a symbolic link (symlink). A symlink acts as a shortcut to the original file, allowing you to modify the virtual host file within the 'sites-available' directory, with changes automatically reflected in the 'sites-enabled' directory.</p><p style="margin-left:0px;">To create a symlink for an example site from 'sites-available' to 'sites-enabled,' execute the following command:</p><pre><code class="language-bash">ln -s /etc/nginx/sites-available/server.conf /etc/nginx/sites-enabled/server.conf</code></pre><p style="margin-left:0px;"><br><br><strong>In conclusion</strong>, <i>nginx is a great server for web development with nodejs. It is fast, reliable, and easy to use. If you are looking for a server for your web development project, nginx is a great option. For more tips and advice on web development, follow me on </i><a href="https://twitter.com/amaniericus"><span style="color:hsl(210,75%,60%);"><i>twitter</i></span></a>.<br>&nbsp;</p><p><span style="font-size:13px;">Also check &nbsp;👇🏽&nbsp;</span><br><span style="font-size:13px;">[ </span><a href="https://amanieric.com/blog/assign-a-free-ssl-certificate-to-an-nginx-server-with-certbot"><span style="color:hsl(210,75%,60%);font-size:13px;">Assign a free SSL certificate to an nginx server with certbot</span></a> , <a href="https://amanieric.com/blog/serve-a-static-app-with-nginx"><span style="color:hsl(210,75%,60%);font-size:13px;">Serve a static app with nginx</span></a>]</p><h3>Some helpful resources</h3><ul><li><a href="https://www.nginx.com/resources/glossary/nginx/"><span style="color:hsl(210,75%,60%);">About nginx</span></a></li><li><a href="https://ubuntu.com/tutorials/install-and-configure-nginx#2-installing-nginx"><span style="color:hsl(210,75%,60%);">Installing nginx on ubuntu</span></a></li><li><a href="https://www.nginx.com/resources/glossary/reverse-proxy-server/"><span style="color:hsl(210,75%,60%);">Reverse proxy server</span></a><br>&nbsp;</li></ul>

A Guide To Setting Up Your nginx server With nodejs On Ubuntu

<p>When you are building an app, you might want to have a place where you can host and view your static assets like images and videos. Nginx can do that pretty well.<br><br>In this article, we are going to host both images and videos with the Nginx server&nbsp;<br>on ubuntu.</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p>Before we get started, make sure you have these things ready.</p><ul><li>Have Ubuntu OS</li><li>Have Nginx installed</li></ul><h2>Prepare the directory which will be served publicly</h2><p>As an example, we are going to be exposing files in the uploads folder below 👇🏽<br>&nbsp;</p><p>&nbsp;</p><h2><img src="https://api.amanieric.com/uploads/files_directory_e3e3532b77.png" alt="files directory" srcset="https://api.amanieric.com/uploads/thumbnail_files_directory_e3e3532b77.png 245w,https://api.amanieric.com/uploads/small_files_directory_e3e3532b77.png 500w," sizes="100vw">Create an Nginx config file for serving our static file</h2><p>Let's create our config file (uploads.confi)</p><pre><code class="language-bash">sudo nano /etc/nginx/sites-available/uploads.conf</code></pre><p>Paste in the codes below. 👇🏽 and save</p><pre><code class="language-nginx">
server{

listen your_port;
server_name your_ip;

location / {

alias /home/amani/uploads/;
   
   }

}</code></pre><p>If you are using a domain name do it like below</p><pre><code class="language-nginx">server{

listen 80;
server_name your_domain;

location / {

alias /home/amani/uploads/;

   }

}</code></pre><p>&nbsp;</p><p>What we just did is expose all files that are in this&nbsp;</p><p>directory 👉🏽 &nbsp;<code>/home/amani/uploads</code><br>Notice that I specified an absolute path.&nbsp;<br><br>Mine looks like this.<br><br><img src="https://api.amanieric.com/uploads/Screenshot_2023_01_11_at_21_14_53_0465a0147d.png" alt="static files nginx" srcset="https://api.amanieric.com/uploads/thumbnail_Screenshot_2023_01_11_at_21_14_53_0465a0147d.png 240w,https://api.amanieric.com/uploads/small_Screenshot_2023_01_11_at_21_14_53_0465a0147d.png 500w,https://api.amanieric.com/uploads/medium_Screenshot_2023_01_11_at_21_14_53_0465a0147d.png 750w," sizes="100vw"></p><p>Replace <strong>3200</strong> with the port you used</p><pre><code class="language-bash">sudo ufw allow 3200</code></pre><p><br>To test this, open your browser and visit. <code>http://&lt;your_ip&gt;:&lt;your_port&gt;/&lt;file_name_and_its_with_extension&gt;</code> or if using a domain name <code>https://&lt;domain_name&gt;/&lt;file_name_and_its_with_extension&gt;</code></p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p><br><img src="https://api.amanieric.com/uploads/video_playing_nginx_7faf919a21.png" alt="video_playing nginx" srcset="https://api.amanieric.com/uploads/thumbnail_video_playing_nginx_7faf919a21.png 245w,https://api.amanieric.com/uploads/small_video_playing_nginx_7faf919a21.png 500w,https://api.amanieric.com/uploads/medium_video_playing_nginx_7faf919a21.png 750w," sizes="100vw"></p><p style="text-align:center;">You should be able to play/serve your static files 🎉</p><h4>&nbsp;</h4><h4>Can also read about:&nbsp;</h4><ul><li><a href="https://amanieric.com/blog/serve-a-static-app-with-nginx"><span style="color:hsl(210,75%,60%);">&nbsp;Serve a static app with nginx</span></a></li></ul><h4><br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</h4>

Serve  images and videos with nginx on the server (Ubuntu)

<p>If you have a PostgreSQL database instance running on an Ubuntu server, you might want&nbsp;<br>to access it from outside the server.<br>In this article, I'm going to show you how you can do it.</p><p><br>The default Postgres connection port is usually <strong>5432.</strong> We are going to expose our connection through this port.<br>You can use your other port if not using the default one.</p><h2>Allow Postgres port in the firewall (<code>5432</code> in our case)</h2><pre><code class="language-bash">sudo ufw allow 5432/tcp</code></pre><p><img src="https://api.amanieric.com/uploads/firewall_allow_port_7db77d1274.png" alt="firewall allow port" srcset="https://api.amanieric.com/uploads/thumbnail_firewall_allow_port_7db77d1274.png 245w,https://api.amanieric.com/uploads/small_firewall_allow_port_7db77d1274.png 500w," sizes="100vw"><br>Open your Postgres config file</p><pre><code class="language-bash">sudo nano /etc/postgresql/&lt;postgres_version&gt;/main/pg_hba.conf</code></pre><blockquote><p>Notice that I used ../<i>14/.. . That's because I have PostgreSQL version 14 installed. Change it to your installed version</i></p></blockquote><p><br><img src="https://api.amanieric.com/uploads/open_postgres_config_file_bd10b8ee54.png" alt="open postgres config file_" srcset="https://api.amanieric.com/uploads/thumbnail_open_postgres_config_file_bd10b8ee54.png 245w,https://api.amanieric.com/uploads/small_open_postgres_config_file_bd10b8ee54.png 500w," sizes="100vw"></p><p>It will open your PostgreSQL config file.<br><br><img src="https://api.amanieric.com/uploads/default_allowed_16d1b1dd44.png" alt="default allowed" srcset="https://api.amanieric.com/uploads/thumbnail_default_allowed_16d1b1dd44.png 245w,https://api.amanieric.com/uploads/small_default_allowed_16d1b1dd44.png 500w," sizes="100vw"><br><br>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p>By default, the allowed address to access the Postgres connection is <code>127.0.0.1/32</code>.<br>That means you can only be connected if you are on the same server.<br><br>We have to change that since we want the connection to be public.<br><br>Change the IP address from <code>127.0.0.1:32</code> &nbsp;=&gt; &nbsp;<code>0.0.0.0/0</code><br><br><img src="https://api.amanieric.com/uploads/whitelist_all_ips_0bccbc70b8.png" alt="whitelist all ips" srcset="https://api.amanieric.com/uploads/thumbnail_whitelist_all_ips_0bccbc70b8.png 245w,https://api.amanieric.com/uploads/small_whitelist_all_ips_0bccbc70b8.png 500w," sizes="100vw"><br><br>What we did is allow any IP address at any port to access ur connection.<br><br>Now you can connect to the database from anywhere.<br>&nbsp;</p><p><strong>N.B</strong>: Changing from &nbsp;<code><i><strong>127.0.0.1/32&nbsp;</strong></i></code> in your configs to &nbsp;<code><i><strong>0.0.0.0/0</strong></i></code> &nbsp;means you are allowing any device from any. address<br>This is insecure. To make it more secure, you can change it from &nbsp;<code><i><strong>127.0.0.1/32</strong></i></code><i><strong> &nbsp;</strong></i>to &nbsp;<code><i><strong>your_trusted_ip/your_trusted_ip_port</strong></i></code><br>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p><br>Construct a connection string like this and connect it to your database.<br><br>👉🏽 <code><strong>postgresql://[user[:password]@][our_server_ip][:our_postgres_server_ip][/dbname]</strong></code><br>You can also test the connection with <a href="https://www.pgadmin.org/download"><span style="color:hsl(210,75%,60%);"><strong>PGAdmin</strong></span> </a>which is a powerful Postgres client.</p><p style="text-align:center;"><br>You should be able to access your database 🎉</p>

How to expose PostgreSQL connection in Ubuntu

<p>If you are having a blog, you might want to monetize it. Adding ads to your blog is among the effective ways to monetize it.<br><br>In this article, I will show you how you can integrate Google AdSense into your NextJs app.<br><br>&nbsp;</p><h2>How do I get my site approved for google AdSense?</h2><p>To have your site approved for showing Google ads, there are steps to follow carefully.<br><br>&nbsp;</p><p><img class="image_resized" style="width:75%;" src="https://api.amanieric.com/uploads/adsense_rejection_amanieric_com_2d0b43b64d.png" alt="adsense rejection amanieric.com" srcset="https://api.amanieric.com/uploads/thumbnail_adsense_rejection_amanieric_com_2d0b43b64d.png 162w,https://api.amanieric.com/uploads/small_adsense_rejection_amanieric_com_2d0b43b64d.png 500w," sizes="100vw"></p><p><br>You can check these eligibility criteria <a href="https://support.google.com/adsense/answer/9724"><span style="color:hsl(210,75%,60%);">here</span></a> carefully to avoid being rejected&nbsp;<br>in the first place.<br><br><strong>Pro Tip: </strong>Before you request Google Adsense approval, make sure your website has at least<strong> 10 dynamic &nbsp;articles</strong> (content should be changing regularly) and a proper domain name.&nbsp;<br>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p><br>If your site is eligible for google AdSense, you will get a response from google on&nbsp;<br>how to get started.<br>It takes a few days to get approved but in some cases, it might take between 2 and 4 weeks.<br><br>&nbsp;</p><p><img class="image_resized" style="width:86.65%;" src="https://api.amanieric.com/uploads/adsense_approved_amanieric_com_8d4a8d55e0.png" alt="adsense approved amanieric.com" srcset="https://api.amanieric.com/uploads/thumbnail_adsense_approved_amanieric_com_8d4a8d55e0.png 245w,https://api.amanieric.com/uploads/small_adsense_approved_amanieric_com_8d4a8d55e0.png 500w," sizes="100vw"></p><p>If your site is approved for google AdSense, follow the following steps to integrate it into your NextJs app&nbsp;<br>and start showing ads.<br>&nbsp;<br>&nbsp;</p><h2>Add your client in the NextJs _document script<br>&nbsp;</h2><div class="raw-html-embed"><div class="code-title-container"><span class="code-title">pages/_document.tsx</span></div></div><pre><code class="language-tsx">import { Html, Head, Main, NextScript } from 'next/document';
import Script from 'next/script';

export default function Document() {
  return (
    &lt;Html lang="en"&gt;
      &lt;Head&gt;
        &lt;Script
          async
          src={`https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=${process.env.NEXT_PUBLIC_GOOGLE_ADS_CLIENT_ID}`}
          strategy="lazyOnload"
          crossOrigin="anonymous"
        /&gt;
      &lt;/Head&gt;
      &lt;body&gt;
        &lt;Main /&gt;
        &lt;NextScript /&gt;
      &lt;/body&gt;
    &lt;/Html&gt;
  );
}
</code></pre><p>change &nbsp;<span style="background-color:rgb(1,22,39);color:rgb(236,196,141);font-family:Menlo, Monaco, Consolas, monospace;">NEXT_PUBLIC_GOOGLE_ADS_CLIENT_ID.</span><span style="color:rgb(236,196,141);font-family:Menlo, Monaco, Consolas, monospace;"> </span><span style="font-family:Menlo, Monaco, Consolas, monospace;">to the env variable containing your ads client id (ca-pub-*********)</span></p><h2>Create an ad banner component</h2><p>&nbsp;</p><div class="raw-html-embed"><div class="code-title-container"><span class="code-title">components/AdBanner.tsx</span></div></div><pre><code class="language-tsx">import { useEffect } from 'react';

const AdBanner = (props) =&gt; {
  useEffect(() =&gt; {
    try {
      (window.adsbygoogle = window.adsbygoogle || []).push({});
    } catch (err) {
      console.log(err);
    }
  }, []);

  return (
    &lt;ins
      className="adsbygoogle adbanner-customize"
      style={{
        display: 'block',
        overflow: 'hidden',
      }}
      data-ad-client={process.env.NEXT_PUBLIC_GOOGLE_ADS_CLIENT_ID}
      {...props}
    /&gt;
  );
};

export default AdBanner;</code></pre><p>&nbsp;</p><h2>Get Google ads block codes from your adsense dashboard.</h2><h4><i>Notice that we are using the default code from the ad banner component above ☝🏾</i><br><br><br><img src="https://api.amanieric.com/uploads/adsense_dashboard_amanieric_com_6239dc6eea.png" alt="adsense dashboard amanieric.com" srcset="https://api.amanieric.com/uploads/thumbnail_adsense_dashboard_amanieric_com_6239dc6eea.png 245w,https://api.amanieric.com/uploads/small_adsense_dashboard_amanieric_com_6239dc6eea.png 500w,https://api.amanieric.com/uploads/medium_adsense_dashboard_amanieric_com_6239dc6eea.png 750w,https://api.amanieric.com/uploads/large_adsense_dashboard_amanieric_com_6239dc6eea.png 1000w," sizes="100vw"><br><br>&nbsp;</h4><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="8842902260" data-ad-format="auto" data-full-width-responsive="true"></ins></div><h4>let's try with <strong>Display ads .</strong></h4><p>click on display ads card<br><br><img src="https://api.amanieric.com/uploads/display_ads_amanieric_com_f20ee3b916.png" alt="display ads amanieric.com" srcset="https://api.amanieric.com/uploads/thumbnail_display_ads_amanieric_com_f20ee3b916.png 226w,https://api.amanieric.com/uploads/small_display_ads_amanieric_com_f20ee3b916.png 500w," sizes="100vw"><br>&nbsp;</p><h4><strong>Choose your ad layout (depends on the place you want to place it)</strong><br><br><img src="https://api.amanieric.com/uploads/choose_ad_sample_amanieric_com_5b27e1050c.png" alt="choose ad sample amanieric.com" srcset="https://api.amanieric.com/uploads/thumbnail_choose_ad_sample_amanieric_com_5b27e1050c.png 245w,https://api.amanieric.com/uploads/small_choose_ad_sample_amanieric_com_5b27e1050c.png 500w,https://api.amanieric.com/uploads/medium_choose_ad_sample_amanieric_com_5b27e1050c.png 750w,https://api.amanieric.com/uploads/large_choose_ad_sample_amanieric_com_5b27e1050c.png 1000w," sizes="100vw"><br><br>&nbsp;</h4><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-format="autorelaxed" data-ad-client="ca-pub-6149905527184076" data-ad-slot="5619699556"></ins></div><h4><strong>Copy these codes (Ignore the rest. we already have them defined in our banner component) and click done&nbsp;</strong><br><br><img src="https://api.amanieric.com/uploads/ad_code_block_amanieric_com_ec7572da60.png" alt="ad code block amanieric.com" srcset="https://api.amanieric.com/uploads/thumbnail_ad_code_block_amanieric_com_ec7572da60.png 245w,https://api.amanieric.com/uploads/small_ad_code_block_amanieric_com_ec7572da60.png 500w,https://api.amanieric.com/uploads/medium_ad_code_block_amanieric_com_ec7572da60.png 750w,https://api.amanieric.com/uploads/large_ad_code_block_amanieric_com_ec7572da60.png 1000w," sizes="100vw"><br>&nbsp;</h4><p>Import the ad banner component anywhere your want this kind of ad to show and ad the codes copies above as props to the ad banner.<br><br>Our ad banner component imported will look like this 👇🏽<br>&nbsp;</p><pre><code class="language-tsx">   &lt;AdBanner
          data-ad-slot="7434970023"
          data-ad-format="auto"
          data-full-width-responsive="true"
        /&gt;</code></pre><p style="text-align:center;">Deploy the changes and on the hosted version of your app , the add banner will be showing the ad where your placed the component ✨<br>You can watch this video for some explaination.<br><br>&nbsp;</p><div class="raw-html-embed"><iframe width="560" height="315" src="https://www.youtube.com/embed/NwoUKdW_Suo" frameborder="0" allowfullscreen=""></iframe>
</div><p style="text-align:center;"><br>Feel free to drop any issue in the comments if you need help.&nbsp;<br>&nbsp;</p>

How to integrate Google AdSense in NextJS

<p>In this article, I will show you how you can add a free SSL certificate to your Nginx server with Certbot.</p><p>Before we start, check my previous article to understand more<span style="color:hsl(210,75%,60%);"> </span><a href="https://amanieric.com/blog/why-your-web-app-should-have-ssl-certificate"><span style="color:hsl(210,75%,60%);">about SSL</span></a>, and check here about <a href="https://amanieric.com/blog/serve-a-static-app-with-nginx"><span style="color:hsl(210,75%,60%);">serving a static app with Nginx</span></a>.<br><br><strong>What is certbot?</strong></p><p>Certbot is an open-source automated software that generates Let's Encrypt Certificates. SSL<br>certificates are provided free of cost by the Internet Security Research Group(<strong>ISRG</strong>).</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="8842902260" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p><br><br>Let's get started 💎</p><p>Considering we already have our app being served by Nginx on our server, we can proceed to install certbot first.</p><p><strong>Before you get started, I assume that</strong>.<br>- You are familiar with Nginx<br>- You have Nginx running on an ubuntu Linux server</p><h2><br><strong>Install certbot</strong><br>&nbsp;</h2><pre><code class="language-HTML/XML">$ apt-get update 
$ sudo apt-get install certbot 
$ apt-get install python-certbot-nginx</code></pre><h2>Get SSL/TLS certificate</h2><pre><code class="language-HTML/XML">$ sudo certbot --nginx -d example.com</code></pre><p>Here <i><strong>example.com</strong></i> ☝🏾 is referring to the domain Nginx is using to serve our app.<br><br>If successful, you should get a response like below 👇🏽<br><br><img src="https://api.amanieric.com/uploads/ssl_success_d597887413.png" alt="ssl success" srcset="https://api.amanieric.com/uploads/thumbnail_ssl_success_d597887413.png 245w,https://api.amanieric.com/uploads/small_ssl_success_d597887413.png 500w," sizes="100vw"></p><p>Open the browser and visit your app.&nbsp;<br>It should be using HTTPS with a valid SSL/TLS certificate ⚡️<br>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p>&nbsp;</p><p><span style="font-size:13px;">Also check 👉🏽 </span><a href="https://amanieric.com/blog/serve-a-static-app-with-nginx"><span style="color:hsl(210,75%,60%);font-size:13px;">Serve a static app with Nginx</span></a><br><br><br><br>&nbsp;</p>

Assign a free SSL certificate to an nginx server with certbot

<p>In this article, I will show you how you can add a free SSL certificate to your Nginx server with Certbot.<br><br>Before we start, let's understand what SSL is.</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><h2>What is SSL?</h2><p>SSL(<strong>S</strong>ecure <strong>S</strong>ocket<strong> L</strong>ayer) is a protocol for establishing authenticated and encrypted links/connections between connected computers.<br>&nbsp;</p><h2>What is SSL certificate and why do we need it?</h2><p><span style="font-family:Roboto, sans-serif;">An </span><strong>SSL certificate</strong><span style="font-family:Roboto, sans-serif;"> (also known as a TLS or SSL/TLS certificate) is a digital document that binds the identity of a website to a cryptographic key pair consisting of a public key and a private key. The public key, included in the certificate, allows a web browser to </span><a href="https://www.ssl.com/article/ssl-tls-handshake-overview/">initiate</a><span style="font-family:Roboto, sans-serif;"> an encrypted communication session with a web server via the TLS and </span><a href="https://www.ssl.com/faqs/what-is-https/">HTTPS</a><span style="font-family:Roboto, sans-serif;"> protocols. The private key is kept secure on the server and is used to digitally sign web pages and other documents (such as images and JavaScript files)</span><br>(source: <a href="ssl.com">ssl.com</a> )<br><br>Reasons your web page/application should have an SSL certificate:&nbsp;</p><ul><li><span style="font-size:17px;"><strong>It protects you and your web page/app users against hackers.</strong></span><br><br>Since the connection is secured in a way that the information from your app's visitors' devices and your app is encrypted, it's hard for a hacker to know the information being shared.<br><br>When you buy something online, you share your payment information with the site you are using (credit cards, PayPal,…).&nbsp;<br><br><i>Ex: In this case, if the site is not using SSL, it's easier for a hacker to grab the information being shared. But in the other case where you are using a secure connection (SSL), even though the hacker can be able to intercept the connection, he can't be able to know the information being shared since it's encrypted.</i>&nbsp;<br><br><img src="https://api.amanieric.com/uploads/1258_X489_How_SSL_Certificates_Work_996889bb3b.svg" alt="1258X489_How-SSL-Certificates-Work.svg"><span style="font-size:13px;"><i>(Image source: </i></span><a href="https://www.entrust.com/"><span style="color:hsl(210,75%,60%);font-size:13px;"><i>entrust.com</i></span></a><span style="font-size:13px;"><i>)</i>&nbsp;</span></li></ul><p>&nbsp;</p><ul><li><span style="font-size:17px;"><strong>Increases trustworthy in your users</strong></span><br><br>Users trust your page/app more since they are confident that the information they share with or&nbsp;<br>through it is secure.</li></ul><p style="text-align:center;"><img class="image_resized" style="width:53.85%;" src="https://api.amanieric.com/uploads/melanie_deziel_U33f_Hry_BYBU_unsplash_1_28cd5d44bd.jpg" alt="melanie-deziel-U33fHryBYBU-unsplash (1).jpg" srcset="https://api.amanieric.com/uploads/thumbnail_melanie_deziel_U33f_Hry_BYBU_unsplash_1_28cd5d44bd.jpg 234w,https://api.amanieric.com/uploads/small_melanie_deziel_U33f_Hry_BYBU_unsplash_1_28cd5d44bd.jpg 500w,https://api.amanieric.com/uploads/medium_melanie_deziel_U33f_Hry_BYBU_unsplash_1_28cd5d44bd.jpg 750w,https://api.amanieric.com/uploads/large_melanie_deziel_U33f_Hry_BYBU_unsplash_1_28cd5d44bd.jpg 1000w," sizes="100vw"><br>&nbsp; &nbsp;&nbsp;</p><ul><li><span style="font-size:17px;"><strong>Improves your app's SEO</strong></span><br><br>It's no secret that having an SSL certificate ranks your site higher in search engines like Google.<br>Some browsers like chrome block unsecure apps by default from being accessed &nbsp;(to protect users' online privacy)and that can lead to poor performance for your app and poor SEO.<br><br><br><img src="https://api.amanieric.com/uploads/Chrome_Advanced_92264fba34.png" alt="Chrome-Advanced.png" srcset="https://api.amanieric.com/uploads/thumbnail_Chrome_Advanced_92264fba34.png 204w,https://api.amanieric.com/uploads/small_Chrome_Advanced_92264fba34.png 500w,https://api.amanieric.com/uploads/medium_Chrome_Advanced_92264fba34.png 750w,https://api.amanieric.com/uploads/large_Chrome_Advanced_92264fba34.png 1000w," sizes="100vw"><span style="font-size:13px;"><i>( Image source: &nbsp;</i></span><a href="https://www.pcmag.com/"><span style="color:hsl(210,75%,60%);font-size:13px;"><i>pc.mag</i></span></a><i> </i><span style="font-size:13px;"><i>)</i></span></li></ul><p><br>You can learn more about SSL by using these resources.</p><ul><li><a href="https://www.ssl.com/faqs/faq-what-is-ssl/#faq"><span style="color:hsl(210,75%,60%);">ssl.com</span></a><br><br><br>&nbsp;</li></ul>

Why your web app should have ssl certificate

<h1 style="margin-left:0px;">What is Nginx?</h1><p style="margin-left:0px;"><strong>NGINX</strong><span style="color:rgb(52,52,52);font-family:Proxima, Roboto-Regular, &quot;Helvetica Neue&quot;, Arial, sans-serif;"> </span><span style="font-family:Proxima, Roboto-Regular, &quot;Helvetica Neue&quot;, Arial, sans-serif;">is open source software for web serving, reverse proxying, caching, load balancing, media streaming, and more.&nbsp;</span><br><br><span style="font-family:Proxima, Roboto-Regular, &quot;Helvetica Neue&quot;, Arial, sans-serif;">It started out as a web server designed for maximum performance and stability. In addition to its HTTP server capabilities, NGINX can also function as a proxy server for email (IMAP, POP3, and SMTP) and a reverse proxy and load balancer for HTTP, TCP, and UDP servers.</span><br>&nbsp;</p><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><p style="margin-left:0px;"><br>In this article I'm going to show you how you can serve a static app like react using nginx.<br><br>Let's get started 🚀</p><p style="margin-left:0px;">&nbsp;</p><h2 style="margin-left:0px;">1. Install Nginx (Ubuntu)</h2><pre><code class="language-HTML/XML">sudo apt update
sudo apt install nginx</code></pre><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><h2 style="margin-left:0px;">2. Deploy your react app</h2><p style="margin-left:0px;">Clone your react app</p><pre><code class="language-HTML/XML">git clone https://github.com/&lt;your username&gt;/&lt;your react app repo&gt;.git</code></pre><p>Install packages</p><pre><code class="language-HTML/XML">sudo yarn install</code></pre><p>Build the app</p><pre><code class="language-HTML/XML">sudo yarn build</code></pre><div class="raw-html-embed"><ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6149905527184076" data-ad-slot="2340918848" data-ad-format="auto" data-full-width-responsive="true"></ins></div><h2 style="margin-left:0px;"><br>3. Create an Nginx configuration file</h2><pre><code class="language-HTML/XML">cd /etc/nginx/sites-available</code></pre><pre><code class="language-HTML/XML">sudo nano react.conf</code></pre><p style="margin-left:0px;">Paste this codes</p><pre><code class="language-nginx">server {
    listen 80;
    server_name your_IP_or_Domain;
    root /home/username/path_to_your_react_app/build;
    index index.html index.htm;
    location / {
        try_files $uri/index.html=404;
}</code></pre><p>Create an nginx virtual host file.<br>we are going to do this by creating symlink to our config file for nginx to recognise it</p><pre><code class="language-HTML/XML">sudo ln -s /etc/nginx/sites-available/react.conf  /etc/nginx/sites-enabled</code></pre><p>Now that we are done with our configurations, let's test it.<br>To test if the configurations have no errors we run the command below.</p><pre><code class="language-HTML/XML">sudo nginx -t</code></pre><p>if successful, you should see this in your terminal 🦾</p><p><img src="https://api.amanieric.com/uploads/nginx_serve_cff9f0d04f.png" alt="nginx serve" srcset="https://api.amanieric.com/uploads/thumbnail_nginx_serve_cff9f0d04f.png 245w,https://api.amanieric.com/uploads/small_nginx_serve_cff9f0d04f.png 500w,https://api.amanieric.com/uploads/medium_nginx_serve_cff9f0d04f.png 750w,https://api.amanieric.com/uploads/large_nginx_serve_cff9f0d04f.png 1000w," sizes="100vw"></p><p><br>let's test our static app.</p><pre><code class="language-HTML/XML">// this restart our nginx service 👇🏽</code></pre><pre><code class="language-HTML/XML">sudo service nginx restart</code></pre><p style="text-align:center;">Then open your browser and visit <i><strong>your_ip or domain</strong> as used in&nbsp;</i><br><i>our config file.</i><br><br><i>You should see the app running &nbsp;✨</i></p><p><span style="font-size:13px;">Also check 👉🏽 </span><a href="https://amanieric.com/blog/assign-a-free-ssl-certificate-to-an-nginx-server-with-certbot"><span style="color:hsl(210,75%,60%);font-size:13px;">Assign a free SSL certificate to an nginx server with certbot</span></a></p><h3>Some helpful resources</h3><ul><li><a href="https://www.nginx.com/resources/glossary/nginx/"><span style="color:hsl(210,75%,60%);">About nginx</span></a></li><li><a href="https://ubuntu.com/tutorials/install-and-configure-nginx#2-installing-nginx"><span style="color:hsl(210,75%,60%);">Installing nginx on ubuntu</span></a><br>&nbsp;</li></ul><p><br>&nbsp;</p>