Python Microservices Development

Variables and converters

Another feature provided by the routing system is variables.

You can use variables using the <VARIABLE_NAME> syntax. This notation is pretty standard (Bottle uses the same), and allows you to describe endpoints with dynamic values.

For example, if you want to create a function that handles all requests to /person/N, with N being the unique ID of a person, you could use /person/<person_id>.

When Flask calls your function, it converts the value it finds in the URL section as the person_id argument:

    @app.route('/api/person/<person_id>')     def person(person_id):         response = jsonify({'Hello': person_id})         return response      $ curl localhost:5000/api/person/3     {       "Hello": "3"     } 

If you have several routes that match the ...