Sending messages via POST requests

So far we've made good progress; we have a site that has the ability to display all of the messages in our data store with two microservices. One microservice handles the storing and retrieval of our messages, and the other acts as a web server for our users. Our MessageService already has the ability to save messages; let's expose that in our WebServer via a POST request.

Adding a send messages POST request

In our service.py, add the following import:

import json 

Now add the following to our WebServer class:

@http('POST', '/messages') 
def post_message(self, request): 
    data_as_text = request.get_data(as_text=True) 
 
    try: 
        data = json.loads(data_as_text) 
    except json.JSONDecodeError: 
        return 400, 'JSON payload expected' 
 
    try: 
        message = data['message'] 
    except KeyError: 
        return 400, 'No message given' 
 
    self.message_service.save_message(message) 
 
    return 204, '' 

With our new POST entrypoint, we...