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+# Documentation for `apicheck.ts`
+
+Welcome to the documentation for the `apicheck.ts` file! This document will guide you through the purpose and functionality of this TypeScript API handler.
+
+## Index
+
+1. [Introduction](#introduction)
+2. [File Overview](#file-overview)
+3. [Functionality](#functionality)
+4. [Code Walkthrough](#code-walkthrough)
+5. [Response Codes and Messages](#response-codes-and-messages)
+6. [Usage](#usage)
+7. [Summary](#summary)
+
+## Introduction
+
+The `apicheck.ts` file is a simple serverless function that acts as an API endpoint in a Next.js application. It is designed to handle HTTP requests and provide a basic response, primarily used to check if an API is functioning correctly. 🚀
+
+##  File Overview
+
+- **Filename:** `apicheck.ts`
+- **Location:** Typically located in the `pages/api` directory of a Next.js project.
+- **Purpose:** Handle HTTP POST requests and ensure the API is operational.
+
+## Functionality
+
+The primary function of this file is to:
+
+- **Respond to HTTP POST requests** with a success message indicating the API is operational.
+- **Reject non-POST HTTP methods** with an appropriate error message. 
+
+This ensures that only POST requests are processed, maintaining the integrity and expected behavior of the API.
+
+## Code Walkthrough
+
+Let's break down the code into its components:
+
+```typescript
+import type { NextApiRequest, NextApiResponse } from 'next';
+
+export default function handler(req: NextApiRequest, res: NextApiResponse) {
+    if (req.method === 'POST') {
+        res.status(200).json({ message: 'API is working!' });
+    } else {
+        res.status(405).json({ message: 'Method not allowed' });
+    }
+}
+```
+
+### Imports
+
+- **`NextApiRequest` and `NextApiResponse`:** These are TypeScript types imported from the `next` package. They define the structure of the request and response objects used in the handler function.
+
+### Exported Function: `handler`
+
+- This is the default exported function that will be used by the Next.js API route.
+
+### Logic
+
+1. **Check Request Method:**
+   - The function checks if the `req.method` is `'POST'`.
+   
+2. **Response for POST Request:**
+   - If the method is `'POST'`, it sends a JSON response with a status code of **200** and a message: `'API is working!'`.
+
+3. **Response for Non-POST Requests:**
+   - If the method is anything other than `'POST'`, it sends a JSON response with a status code of **405** (Method Not Allowed) and a message: `'Method not allowed'`.
+
+## Response Codes and Messages
+
+| HTTP Method | Status Code | Message               |
+|-------------|-------------|-----------------------|
+| POST        | 200         | API is working!       |
+| Others      | 405         | Method not allowed    |
+
+## Usage
+
+### How to Use
+
+1. **Setup your Next.js Project:**
+   - Ensure you have a Next.js project setup.
+
+2. **Place the File:**
+   - Save the `apicheck.ts` file in your project's `pages/api` directory.
+
+3. **Send a POST Request:**
+   - Use a tool like Postman or a simple `fetch` request from a client-side application to send a POST request to `/api/apicheck`.
+
+4. **Observe the Response:**
+   - You should receive a response: `{ "message": "API is working!" }`.
+
+### Example POST Request
+
+```javascript
+fetch('/api/apicheck', {
+  method: 'POST'
+})
+  .then(response => response.json())
+  .then(data => console.log(data.message)); // Output: API is working!
+```
+