github.com/mbranch/jsonrest-go

jsonrest-go

Package jsonrest implements a microframework for writing RESTful web applications.

Endpoints are defined as:

func(ctx context.Context, req *jsonrest.Request) (interface{}, error)

If an endpoint returns a value along with a nil error, the value will be rendered to the client as JSON.

If an error is returned, it will be sanitized and returned to the client as json. Errors generated by a call to jsonrest.Error(status, code, message) will be rendered in the following form:

{
    "error": {
        "message": message,
        "code": code
    }
}

along with the given HTTP status code.

If the error returned implements HTTPErrorResponse (i.e. has a StatusCode() int method), it will be marshaled as-is to the client with the provided status code. Any other errors will be obfuscated to the caller (unless router.DumpError is enabled).

Example:

func main() {
    r := jsonrest.NewRouter()
    r.Use(logging)
    r.Get("/", hello)
}

func hello(ctx context.Context, req *jsonrest.Request) (interface{}, error) {
    return jsonrest.M{"message": "Hello, world"}, nil
}

func logging(next jsonrest.Endpoint) jsonrest.Endpoint {
    return func(ctx context.Context, req *jsonrest.Request) (interface{}, error) {
        start := time.Now()
        defer func() {
            log.Printf("%s (%v)\n", req.URL().Path, time.Since(start))
        }()
        return next(ctx, req)
    }
}