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1. Create an Observable of the POST request using the HttpClient.post() method.
2. Use the .pipe() method to transform the response stream.
3. Inside the .pipe() method, use the map() operator to transform the response to JSON.
4. Use the tap() operator to log the response to the console.
5. Use the catch() operator to handle any errors.
6. Subscribe to the Observable to initiate the POST request.
7. Use the subscribe() method to receive the response and update the UI.

To continuously stream the result of the POST request, you can add a delay or interval using the RxJS operators, such as delay(), interval(), or timer(). This will allow you to repeatedly send requests and receive responses at a specified interval. You can also use the repeat() operator to repeat the request indefinitely.