Example #1
0
func UnserializeRequestMiddleware(registry kit.Registry, request kit.Request) (kit.Response, bool) {
	// Try to parse json in body. Ignore error since body might not contain json.
	contentType := request.GetHttpRequest().Header.Get("Content-Type")
	if strings.Contains(contentType, "json") {
		// Only read the HTTP body automatically for json content type requests,
		// since some handlers might need to read it themselfes (see the files package resource).
		if err := request.ReadHttpBody(); err != nil {
			return kit.NewErrorResponse(err, "http_body_read_error"), false
		} else {
			if request.GetRawData() != nil {
				if err := request.ParseJsonData(); err != nil {
					return kit.NewErrorResponse(err, "invalid_json_body", true), false
				}

				if request.GetData() != nil {
					// Successfully parsed json body.

					// Now try to unserialize.

					// Determine serializer.
					serializer := registry.DefaultSerializer()

					// Check if a custom serializer was specified.
					if name := request.GetContext().String("request-serializer"); name != "" {
						serializer = registry.Serializer(name)
					}

					if serializer == nil {
						return kit.NewErrorResponse("unknown_serializer", fmt.Sprintf("The specified request serializer does not exist")), false
					} else {
						if err := request.Unserialize(serializer); err != nil {
							return kit.NewErrorResponse(err, "request_unserialize_error", true), false
						}
					}
				}
			}
		}
	}

	return nil, false
}