In this commit, we've added the capability to authenticate via bearer token to Meteologix's HTTP client. A new method "WithBearerToken" has been implemented, allowing a bearer token to be set in 'meteologix.go'. Additionally, in 'httpclient.go', the token is attached to the "Authorization" header for API requests. Tests asserting token setting functionality have been added in 'meteologix_test.go'. These changes open up an alternative authentication option for our API users. The bearer auth is not public yet, so there is no way for us to test this auth
A few changes were made to `httpclient.go`. We swapped the `os` package for `log` to standardize error logging. Instead of having the HTTP transport as a value, it is now a pointer in the HTTP client instantiation function, aligning it with the client itself. We also altered error handling: we now just return an error when our server response is `nil`, and changed `sr.Body.Close()` error reporting to use `log` instead of `fmt`.
To streamline the code, user authentication function `setAuthHeader` was renamed to `setAuthentication`, and the copy of our HTTP response body to buffer now only happens after the status check. We also replaced the `Flush` error to be handled properly.
Successful requests return bytes instead of the buffer itself. As a result, these changes have led to more readable and effective code.
- Set HTTPClientTimeout for HTTP client to prevent hanging requests
- Check for http.StatusOK instead of a generic error-range
- Use json.NewDecoder to decode error JSON for better memory usage
Winni Neessen