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REST API Cheatsheet: Comprehensive Guide with Examples

Cheatsheet August 24, 2024

This REST API cheatsheet provides a comprehensive overview of the most commonly used REST API concepts, complete with examples to help you quickly find the information you need. Whether you're building or consuming APIs, this guide serves as a quick reference to help you work more efficiently with REST APIs.

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Creating a Simple REST API with Flask

Tutorial August 03, 2024
python 

from flask import Flask, jsonify

app = Flask(__name__)

items = [
    {"id": 1, "name": "Item 1", "price": 100},
    {"id": 2, "name": "Item 2", "price": 150},
    {"id": 3, "name": "Item 3", "price": 200}
]

@app.route('/api/items', methods=['GET'])
def get_items():
    return jsonify(items)

if __name__ == '__main__':
    app.run(debug=True)
from flask import Flask, jsonify, request, abort

app = Flask(__name__)

items = [
    {"id": 1, "name": "Item 1", "price": 100},
    {"id": 2, "name": "Item 2", "price": 150},
    {"id": 3, "name": "Item 3", "price": 200}
]

@app.route('/api/items', methods=['GET'])
def get_items():
    return jsonify(items)

@app.route('/api/items/<int:item_id>', methods=['GET'])
def get_item(item_id):
    item = next((item for item in items if item["id"] == item_id), None)
    if item is None:
        abort(404)
    return jsonify(item)

@app.route('/api/items', methods=['POST'])
def create_item():
    if not request.json or 'name' not in request.json or 'price' not in request.json:
        abort(400)
    new_item = {
        "id": items[-1]['id'] + 1 if items else 1,
        "name": request.json['name'],
        "price": request.json['price']
    }
    items.append(new_item)
    return jsonify(new_item), 201

@app.route('/api/items/<int:item_id>', methods=['PUT'])
def update_item(item_id):
    item = next((item for item in items if item["id"] == item_id), None)
    if item is None:
        abort(404)
    if not request.json:
        abort(400)
    item['name'] = request.json.get('name', item['name'])
    item['price'] = request.json.get('price', item['price'])
    return jsonify(item)

@app.route('/api/items/<int:item_id>', methods=['DELETE'])
def delete_item(item_id):
    item = next((item for item in items if item["id"] == item_id), None)
    if item is None:
        abort(404)
    items.remove(item)
    return jsonify({"result": True})

if __name__ == '__main__':
    app.run(debug=True)

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