func MarshalResponseMiddleware(registry kit.Registry, request kit.Request, response kit.Response) (kit.Response, bool) {
js, err := json.Marshal(response.GetData())
if err != nil {
js = []byte(`{"errors": [{code: "response_marshal_error"}]}`)
}
response.SetRawData(js)
return nil, false
}
func convertResponse(response kit.Response) *turnpike.CallResult {
result := &turnpike.CallResult{}
if response.GetError() != nil {
result.Err = turnpike.URI(response.GetError().GetCode())
}
result.Kwargs = map[string]interface{}{
"data": response.GetData(),
"meta": response.GetMeta(),
"errors": []error{response.GetError()},
}
return result
}
// SerializeResponse converts a response with model data into the target format.
func (s *Serializer) SerializeResponse(response kit.Response) (interface{}, apperror.Error) {
transData := response.GetTransferData()
if transData == nil {
transData = &kit.AppTransferData{}
data := response.GetData()
if model, ok := data.(kit.Model); ok {
transData.SetModels([]kit.Model{model})
} else if models, ok := data.([]kit.Model); ok {
transData.SetModels(models)
} else {
transData.SetData(data)
}
}
// Append response metadata.
if meta := response.GetMeta(); meta != nil {
transMeta := transData.GetMeta()
if transMeta != nil {
for key, val := range meta {
transMeta[key] = val
}
} else {
transData.SetMeta(meta)
}
}
// If a response error is defined, prepend it to all errors that might have been in
// TransferData.
if err := response.GetError(); err != nil {
oldErrs := transData.GetErrors()
transData.SetErrors(append([]apperror.Error{err}, oldErrs...))
}
data, err := s.SerializeTransferData(transData)
if err != nil {
return nil, err
}
return data, nil
}
func RespondWithJson(w http.ResponseWriter, response kit.Response) {
code := 200
respData := map[string]interface{}{
"data": response.GetData(),
}
if response.GetError() != nil {
errs := []error{response.GetError()}
additionalErrs := response.GetError().GetErrors()
if additionalErrs != nil {
for _, err := range additionalErrs {
if apiErr, ok := err.(apperror.Error); ok && apiErr.IsPublic() {
errs = append(errs, apiErr)
}
}
}
respData["errors"] = errs
code = 500
}
output, err2 := json.Marshal(respData)
if err2 != nil {
code = 500
respData = map[string]interface{}{
"errors": []error{
apperror.Wrap(err2, "json_encode_error"),
},
}
output, _ = json.Marshal(respData)
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(code)
w.Write(output)
}
func (f *Frontend) registerMethod(method kit.Method) {
f.client.Register(method.GetName(), func(args []interface{}, kwargs map[string]interface{}, details map[string]interface{}) (result *turnpike.CallResult) {
methodName := method.GetName()
fmt.Printf("WAMP method %v |\n data: %v |\n details: %v\n", methodName, kwargs, details)
request := kit.NewRequest()
request.SetFrontend("wamp")
request.SetPath("/method/" + methodName)
request.SetData(kwargs)
var response kit.Response
// Find session.
sessionId := uint(details["session_id"].(turnpike.ID))
session := f.sessions[sessionId]
if session == nil {
s, err := f.registry.UserService().StartSession(nil, "wamp")
if err != nil {
response = kit.NewErrorResponse(err)
} else {
f.sessions[sessionId] = s
session = s
}
}
request.SetSession(session)
if session.GetUser() != nil {
request.SetUser(session.GetUser())
}
// Run before middlewares.
for _, middleware := range f.beforeMiddlewares {
resp, skip := middleware(f.registry, request)
if skip {
panic("WAMP frontend middlewares do not support skipping.")
} else if resp != nil {
response = resp
break
}
}
// Run the method.
if response == nil {
responder := func(r kit.Response) {
response = r
}
finishedChannel, err := f.registry.App().RunMethod(methodName, request, responder, true)
if err != nil {
response = kit.NewErrorResponse(err)
} else {
<-finishedChannel
}
}
// Run after middlewares.
for _, middleware := range f.afterMiddlewares {
resp, skip := middleware(f.registry, request, response)
if skip {
panic("WAMP frontend middlewares do not support skipping.")
}
if resp != nil {
response = resp
}
}
return &turnpike.CallResult{Kwargs: response.GetData().(map[string]interface{})}
}, nil)
}
