我想通過這種方法進行用戶登錄。這必須分為三個部分。與用戶注冊相同，但我不明白如何做到這一點？您能否寫下我如何以同樣的方式編寫用戶登錄邏輯？它是使用 gorilla mux 創建的。一種方法必須在 db_service.go 中，然后一種方法必須在 login_service.go 中，一種方法必須在 login.go 中。這是 db_service.go 代碼： /* Used to create a singleton object of MongoDB client.Initialized and exposed through GetMongoClient().*/var clientInstance *mongo.Client//Used during creation of singleton client object in GetMongoClient().var clientInstanceError error//Used to execute client creation procedure only once.var mongoOnce sync.Once//I have used below constants just to hold required database config's.const ( CONNECTIONSTRING = "http://127.0.0.1:27017" AUTH_DB = "Cluster0" USER_COLLECTION = "user")//GetMongoClient - Return mongodb connection to work withfunc GetMongoClient() (*mongo.Client, error) { //Perform connection creation operation only once. mongoOnce.Do(func() { // Set client options clientOptions := options.Client().ApplyURI(CONNECTIONSTRING) // Connect to MongoDB client, err := mongo.Connect(context.TODO(), clientOptions) if err != nil { clientInstanceError = err } // Check the connection err = client.Ping(context.TODO(), nil) if err != nil { clientInstanceError = err } log.Println("Connected Mongodb!") clientInstance = client }) return clientInstance, clientInstanceError}//CreateIssue - Insert a new document in the collection.func User_Collection(user *model.User) (*mongo.InsertOneResult, error) { //Create a handle to the respective collection in the database. collection := clientInstance.Database(AUTH_DB).Collection(USER_COLLECTION) //Perform InsertOne operation & validate against the error. return collection.InsertOne(context.TODO(), user)}
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慕哥6287543
TA貢獻1831條經驗 獲得超10個贊
像這樣的處理程序
func Login(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/json")
var user model.User
if err := json.NewDecoder(r.Body).Decode(&user); err == nil {
if _, err := service.Login_User(&user); err == nil {
json.NewEncoder(w).Encode(user)
} else {
w.WriteHeader(http.StatusInternalServerError)
json.NewEncoder(w).Encode(err)
}
} else {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
}
像這樣的數據庫（需要實現查詢而不是插入）
func Login_User(user *model.User) (interface{}, error) {
// Implement this query
if result, err := util.Find_User(user); err == nil {
return result, err
} else {
return nil, err
}
}
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