API Demo

app.py

from functools import partial

from flask import Flask
from flask import jsonify
from flask import render_template
from flask import request


app = Flask(__name__)

MESSAGE = 'Hello World!'


@app.route('/', methods=["POST", "GET"])
def hello_world():
    if request.method == "GET":
        if request.headers.get("accept") == "application/json":
            response_function = jsonify
        else:
            response_function = lambda x: render_template("index.html", **x)
    elif request.method == "POST":
        global MESSAGE
        MESSAGE = request.json["message"]
        response_function = jsonify
    else:
        raise Exception
    context = {"message": MESSAGE}
    return response_function(context)


@app.route("/clone", methods=["POST", "GET"])
def clone_the_world():
    if request.method == "POST":
        global MESSAGE
        MESSAGE = request.json["message"]

    context = {"message": MESSAGE}
    if request.headers.get("accept") == "application/json":
        response_function = jsonify
    else:
        response_function = partial(render_template, "index.html")

    return response_function(context)


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