Endpoints

Method URL Pattern Handler Action
GET /v1/healthcheck healthCheckHandler Show application information
GET /v1/movies listMoviesHandler Show the details of all movies
POST /v1/movies createMoviesHandler Create a new movie
GET /v1/movies/:id showMovieHandler Show the details of a specific movie
PUT /v1/movies/:id editMovieHandler Edit the details of a specific movie
DELETE /v1/movies/:id deleteMovieHandler Delete a specific movie

Installation

Launch API

go run ./cmd/api

If you want, you can also verify that the command-line flags are working correctly by specifying alternative port and env values when starting the application.
When you do this, you should see the contents of the log message change accordingly. For example :

go run ./cmd/api -port=3030 -env=production
time=2025-10-10T11:08:00.000+02:00 level=INFO msg= "starting server" addr=:3030 env=production

Test endpoints

curl -i localhost:4000/v1/healthcheck
The -i flag in the command above instructs curl to display the HTTP response headers as well as the response body.

Result

HTTP/1.1 200 OK
Date: Mon, 05 Apr 2021 17:46:14 GMT
Content-Length: 58
Content-Type: text/plain; charset=utf-8

status: available
environment: development
version: 1.0.0

API Versioning

There are two comon approaches to doing this :

  1. By prefixing all URLs with your API version, like /v1/healthcheck or /v2/healthcheck
  2. By using custom Accept and Content-Type headers on requests and responses to convey the API version, like Accept: application/vnd.greenlight-v1

From a HTTP semantics point of view, using headers to convey the API version is the 'purer' approach. But from a user-experience point of view, using a URL prefix is arguably better. It makes it possible for developers to see which version of the API is being used at a glance, and it also means that the API can still be explored using a regular web browser (which is hearder if custom headers are required).

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