In this tutorial, I’m going to show you how to create a simple REST API by using the Flask framework. I will not bother you with any sort of advanced topic. Probably you won’t use this tutorial for any kind of production-level product. I just want to show how easy it can be to create a REST API with Flask.
This tutorial aims to build a small and simple app. The entire app fits in a single file. Let’s see some codes.
from flask import Flask, jsonify
app = Flask(__name__)
@app.route("/")
def hello():
return "Hello World!"
@app.route("/api")
def hello_api():
return jsonify(id=1, title='Hello World!')
Let's test it with curl. We will only send a GET request.
curl --request GET http://127.0.0.1:5000/api
{
"id": 1,
"title": "Hello World!"
}
This is the simplest possible API example. If you need a full-featured REST API solution, you should check the REST extensions.