Can we include the error message in raise_for_status()?

[georgy95]

Often, I send an http request, and there is an API error that informs me of the error. The specific error message, however isn't passed / propagated back. raise_for_status() essentially consumes the error and returns a more "generic" status-code error.

For example, when processing an oauth2 callback, a httpx request might result in a specific error e.g. "Code already used", but raise_for_status() will not pass down the specific message.

I propose to add an error message in the message in the response e.g.

Source: https://github.com/encode/httpx/blob/master/httpx/_models.py#L794

        if self.has_redirect_location:
            message = (
                "{error_type} '{0.status_code} {0.reason_phrase}' for url '{0.url}'\n"
                "Redirect location: '{0.headers[location]}'\n"
                "For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/{0.status_code}"
            )
        else:
            message = (
                "{error_type} '{0.status_code} {0.reason_phrase}' for url '{0.url}'\n"
                "For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/{0.status_code}"
                "Error detail: {0.content}" <--- THIS ADDITION
            )