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<!DOCTYPE html>
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<title>Day 2: GET/POST Requests - REST API Course</title>
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<h1 class="text-4xl font-bold mb-6">Day 2: GET/POST Requests</h1>
<div class="bg-white rounded-lg shadow-lg p-6 mb-8">
<h2 class="text-2xl font-semibold mb-4">GET Requests</h2>
<p class="mb-4">
GET requests are used to retrieve data from a server. They are the most common type of HTTP request and are used when you want to fetch information.
</p>
<h3 class="text-xl font-semibold mb-2">Key Characteristics:</h3>
<ul class="list-disc pl-6 space-y-2 mb-4">
<li>Data is sent in the URL as query parameters</li>
<li>No request body</li>
<li>Can be cached</li>
<li>Should be idempotent (same request = same result)</li>
</ul>
<h3 class="text-xl font-semibold mb-2">Example GET Request:</h3>
<pre><code>GET https://jsonplaceholder.typicode.com/posts/1
Accept: application/json</code></pre>
</div>
<div class="bg-white rounded-lg shadow-lg p-6 mb-8">
<h2 class="text-2xl font-semibold mb-4">POST Requests</h2>
<p class="mb-4">
POST requests are used to send data to a server to create a new resource. They are commonly used when submitting forms or creating new records.
</p>
<h3 class="text-xl font-semibold mb-2">Key Characteristics:</h3>
<ul class="list-disc pl-6 space-y-2 mb-4">
<li>Data is sent in the request body</li>
<li>Not idempotent (same request can create multiple resources)</li>
<li>Cannot be cached</li>
<li>Should return 201 Created on success</li>
</ul>
<h3 class="text-xl font-semibold mb-2">Example POST Request:</h3>
<pre><code>POST https://jsonplaceholder.typicode.com/posts
Content-Type: application/json
{
"title": "New Post",
"body": "This is a new post",
"userId": 1
}</code></pre>
</div>
<div class="bg-white rounded-lg shadow-lg p-6 mb-8">
<h2 class="text-2xl font-semibold mb-4">Practical Exercise: Using JSONPlaceholder API</h2>
<h3 class="text-xl font-semibold mb-2">Exercise 1: GET Request</h3>
<ol class="list-decimal pl-6 space-y-2 mb-4">
<li>Open Insomnia</li>
<li>Create a new GET request</li>
<li>Set URL to: https://jsonplaceholder.typicode.com/posts</li>
<li>Add header: Accept: application/json</li>
<li>Send request and observe the response</li>
</ol>
<h3 class="text-xl font-semibold mb-2">Exercise 2: POST Request</h3>
<ol class="list-decimal pl-6 space-y-2">
<li>Create a new POST request</li>
<li>Set URL to: https://jsonplaceholder.typicode.com/posts</li>
<li>Add header: Content-Type: application/json</li>
<li>Add request body:
<pre><code>{
"title": "My First Post",
"body": "This is my first post using Insomnia",
"userId": 1
}</code></pre>
</li>
<li>Send request and observe the response</li>
</ol>
</div>
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<h2 class="text-2xl font-semibold mb-4">Practice Questions</h2>
<div class="space-y-6">
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<h3 class="text-xl font-semibold text-blue-800 mb-2">Multiple Choice</h3>
<div class="space-y-4">
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<p class="font-semibold mb-2">1. Which HTTP method is idempotent?</p>
<div class="space-y-2">
<label class="flex items-center">
<input type="radio" name="q1" class="mr-2">
A. GET
</label>
<label class="flex items-center">
<input type="radio" name="q1" class="mr-2">
B. POST
</label>
<label class="flex items-center">
<input type="radio" name="q1" class="mr-2">
C. Both A and B
</label>
</div>
</div>
<div class="p-3 bg-white rounded shadow">
<p class="font-semibold mb-2">2. What is the typical response code for a successful POST request?</p>
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<label class="flex items-center">
<input type="radio" name="q2" class="mr-2">
A. 200 OK
</label>
<label class="flex items-center">
<input type="radio" name="q2" class="mr-2">
B. 201 Created
</label>
<label class="flex items-center">
<input type="radio" name="q2" class="mr-2">
C. 204 No Content
</label>
</div>
</div>
</div>
</div>
<div class="bg-green-50 p-4 rounded-lg">
<h3 class="text-xl font-semibold text-green-800 mb-2">True/False</h3>
<div class="space-y-4">
<div class="p-3 bg-white rounded shadow">
<p class="font-semibold mb-2">3. GET requests can have a request body.</p>
<div class="space-y-2">
<label class="flex items-center">
<input type="radio" name="q3" class="mr-2">
True
</label>
<label class="flex items-center">
<input type="radio" name="q3" class="mr-2">
False
</label>
</div>
</div>
<div class="p-3 bg-white rounded shadow">
<p class="font-semibold mb-2">4. POST requests are always safe methods.</p>
<div class="space-y-2">
<label class="flex items-center">
<input type="radio" name="q4" class="mr-2">
True
</label>
<label class="flex items-center">
<input type="radio" name="q4" class="mr-2">
False
</label>
</div>
</div>
</div>
</div>
<div class="bg-purple-50 p-4 rounded-lg">
<h3 class="text-xl font-semibold text-purple-800 mb-2">Practical Exercise</h3>
<div class="space-y-4">
<div class="p-3 bg-white rounded shadow">
<p class="font-semibold mb-2">5. Using Insomnia, perform the following tasks:</p>
<div class="space-y-2">
<p class="text-sm text-gray-600">a) Make a GET request to https://jsonplaceholder.typicode.com/posts/1 and note the title</p>
<input type="text" class="border rounded p-2 w-full" placeholder="Enter the title">
<p class="text-sm text-gray-600">b) Make a POST request to https://jsonplaceholder.typicode.com/posts with the following body:</p>
<pre class="bg-gray-100 p-2 rounded text-sm">{
"title": "New Post",
"body": "This is a test post",
"userId": 1
}</pre>
<p class="text-sm text-gray-600">What status code did you receive?</p>
<input type="number" class="border rounded p-2 w-24" placeholder="Status code">
</div>
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Check Answers
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<h2 class="text-2xl font-semibold mb-4">Common Public APIs for Practice</h2>
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<table class="min-w-full">
<thead>
<tr class="bg-gray-100">
<th class="py-2 px-4">API</th>
<th class="py-2 px-4">Description</th>
<th class="py-2 px-4">Base URL</th>
</tr>
</thead>
<tbody>
<tr>
<td class="py-2 px-4">JSONPlaceholder</td>
<td class="py-2 px-4">Fake Online REST API for Testing</td>
<td class="py-2 px-4">https://jsonplaceholder.typicode.com</td>
</tr>
<tr>
<td class="py-2 px-4">Reqres</td>
<td class="py-2 px-4">A hosted REST-API ready to respond to your AJAX requests</td>
<td class="py-2 px-4">https://reqres.in</td>
</tr>
<tr>
<td class="py-2 px-4">OpenWeather</td>
<td class="py-2 px-4">Weather data API</td>
<td class="py-2 px-4">https://api.openweathermap.org</td>
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