Demo Python Flask API

README.md

How to run it ?

Open your Terminal

1) Install necessary modules

pip3 install flask requests jsonpickle

2) Start Flask server

export FLASK_APP=server.py
flask run 

3) Run client

python3 client.py 

client.py

import requests
import json

addr = 'http://localhost:5000'
test_get = addr + '/v1/api/test_get'
test_post = addr + '/v1/api/test_post'

# Prepare headers for http request
content_type = 'application/json'
headers = {'content-type': content_type}

# Query to test_get API using GET http method
get_response = requests.get(test_get)
# decode response
print('Response of GET method: ', get_response.json())

# prepare body/payload for http request
payload = {
    "message": "This is a POST request message!",
}
payload = json.dumps(payload)
loaded_payload = json.loads(payload)

# Query to test_post API using GET http method
post_response = requests.post(test_post, '', json=loaded_payload)
# decode response
print('Response of POST method: ', post_response.json())

server.py

from flask import Flask, request, Response, send_file
import jsonpickle
import json
import ast
import time

app = Flask(__name__)

baseURL = 'http://localhost:5000'
get_route = '/v1/api/test_get'
post_route = '/v1/api/test_post'

# Implement get_route API using GET http method
@app.route(get_route, methods=['GET'])
def test_get():
    response = {'get_message': 'This is a GET response message!', 'status': '200'}
    print(type(response))
    response_pickled = jsonpickle.encode(response)
    return Response(response=response_pickled, status=200, mimetype="application/json")

# Implement post_route API using POST http method
@app.route(post_route, methods=['GET', 'POST'])
def test_post():
    loaded_body = parse_json_from_request(request)
    message = loaded_body['message']
    message_response = message+' And this a POST response message!'
    response = {'post_message': message_response, 'status': '200'}
    response_pickled = jsonpickle.encode(response)
    return Response(response=response_pickled, status=200, mimetype="application/json")

def parse_json_from_request(request):
    body_dict = request.json
    body_str = json.dumps(body_dict)
    loaded_body = ast.literal_eval(body_str)
    return loaded_body

if __name__ == "__main__":
    # start flask app
    app.run()