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New_APIs/music-api/README.md

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+# Music API Web Application
+Welcome to the Music API! You can access any song and listen to it. Below are some useful links and information.
+
+## Features
+- Search for a song to listen.
+- Displays detailed information about the song.
+- Click ▶ to listen to the song.
+
+## Technologies Used
+- Node JS
+- Spotify API
+- HTML
+- CSS
+- JavaScript
+
+## Pre-Requisites
+Before getting started, there are some pre-requisites to keep in mind:
+- This music app requires Spotify Premium, so you'll need a premium account to use it.
+- [Set up account](#set-up-account) using your Spotify Credentials.
+
+
+> **Note:** You'll require a premium account only for listening to the song. You will still be able to fetch the song details without having a premium account.
+
+## Installation
+Follow these steps to install the project.
+1. Clone the repository to your local machine.
+2. Run command `npm i` to install all the dependencies.
+3. Run command `npm start` to start the server
+4. Visit [http://localhost:3000](http://localhost:3000)
+
+## API Integration
+This web application uses Spotify API to fetch the song data.
+
+## Set Up Account
+Set up your developer account to get access to `CLIENT_ID` and `CLIENT_SECRET` required to use Spotify API
+1. Visit the site: [Spotify for Developers](https://developer.spotify.com/).
+2. Log into the [Dashboard](https://developer.spotify.com/dashboard) using your Spotify account.
+3. Click [Create app](https://developer.spotify.com/documentation/web-api/concepts/apps)
+    - Add `http://localhost:3000/callback` to "Redirect URIs".
+    - Select `Web API` for the question asking which APIs are you planning to use.
+    - Similarly add other details.
+4. Once you have created your app, you will have access to the app credentials. These will be required for API authorization to obtain an access token.
+5. Use the access token in your API requests. 
+
+## Set up .env file
+1. Set `CLIENT_ID` = 'Your-Client-Id'
+2. Set `CLIENT_SECRET` = 'Your-Client-Secret'
+3. Set `REDIRECT_URI` = 'http://localhost:3000/callback'
+
+> **Note:** Open your [Spotify on Web](https://open.spotify.com/) side by side with the app to listen to the song. If you still encounter `NO_ACTIVE_DEVICE` error, switch to spotify tab and simply click play and then pause ( to any song that had been played previously), this will ensure that Spotify is running correctly in background and then switch back to the Music API and refresh the webpage.
+
+## ENJOY!!😃
+
+## Legal
+By using Spotify Web API, you accept the [Spotify Developer Terms of Service](https://developer.spotify.com/terms).