Making a REST API Using Python - Flask

Hi guys, In this post, we will be building a rest API in python using a microframework called Flask. There are basically two methods to create a Rest API using a flask. If you looking to find out more about Flask do check out my post on Introduction To Flask.

Method I - Using Only Flask

The first method is to use only flask without any other packages

	# importing...
	from flask import Flask, render_template, Response ,request, url_for, redirect, send_from_directory, Markup, session, flash, jsonify
	import json
	# app confog(typo)
	app = Flask(__name__)
	# a simple route
	@app.route("/")
	def hello_wordl():
	data= {
	'name': 'name'
	}
	return json.dumps(data)
	# running the app
	if __name__ == '__main__':
	app.run()

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Method II - Using Flask API

In this method, we use a package called flask API

	# using flask_restful
	from flask import Flask, jsonify, request
	from flask_restful import Resource, Api
	# creating the flask app
	app = Flask(__name__)
	# creating an API object
	api = Api(app)
	# making a class for a particular resource
	# the get, post methods correspond to get and post requests
	# they are automatically mapped by flask_restful.
	# other methods include put, delete, etc.
	class Hello_World(Resource):
	# corresponds to the GET request.
	# this function is called whenever there
	# is a GET request for this resource
	def get(self):
	return jsonify({'message': 'hello world'})
	# Corresponds to POST request
	def post(self):
	data = request.get_json() # status code
	return jsonify({'data': data}), 201
	# adding the defined resources along with their corresponding urls
	api.add_resource(Hello_World, '/')
	# driver function
	if __name__ == '__main__':
	app.run(debug = True)

view raw flask_method.py hosted with ❤ by GitHub

Conclusion

• These are a simple way to create API in Python. You could also use FastAPI(A New post on it coming soon!).
• Do Consider Digital Ocean if you are trying to host your application.