Android 应用程序中的 AWS Amplify Recognized Auth 错误

Question

我正在按照 Amplify 文档为我的 Android 应用程序添加身份验证。我在这条线上收到 AuthException：

Amplify.addPlugin(AWSCognitoAuthPlugin())

我确实创建了一个用户池。我需要以某种方式附加它吗？我猜 AWSMobileClient 有问题。

这是我的 Application class:

class AppUtils : Application() {
    override fun onCreate() {
        super.onCreate()
        try {
            Amplify.addPlugin(AWSCognitoAuthPlugin())
            Amplify.configure(applicationContext)
            Log.d(TAG, "Initialized Amplify")
        } catch (error: AmplifyException) {
            Log.e(TAG, "Could not initialize Amplify", error)
        }
    }
}

这是 logcat 中显示的错误：

AuthException{message=Failed to instantiate AWSMobileClient, cause=java.lang.RuntimeException: Neither Cognito Identity or Cognito UserPool was used. At least one must be present to use AWSMobileClient., recoverySuggestion=See attached exception for more details}

Answer 1

该错误表明在您的配置文件中找不到 Identity 或 UserPool。

首先确保您已完成以下步骤：

放大初始化
放大添加授权
放大推送

完成后，您的 app/src/main/res/raw 目录中应该有一个 amplifyconfiguration.json 和一个 awsconfiguration.json。

您的 amplifyconfiguration.json 应如下所示：

{
    "UserAgent": "aws-amplify-cli/2.0",
    "Version": "1.0",
    "auth": {
        "plugins": {
            "awsCognitoAuthPlugin": {
                "UserAgent": "aws-amplify-cli/0.1.0",
                "Version": "0.1.0",
                "IdentityManager": {
                    "Default": {}
                },
                "CredentialsProvider": {
                    "CognitoIdentity": {
                        "Default": {
                            "PoolId": "us-east-1:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
                            "Region": "us-east-1"
                        }
                    }
                },
                "CognitoUserPool": {
                    "Default": {
                        "PoolId": "us-east-1_xxxxxxxxx",
                        "AppClientId": "xxxxxxxxxxxxxxxxxxxxxxxxxx",
                        "AppClientSecret":
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
                        "Region": "us-east-1"
                    }
                },
                "Auth": {
                    "Default": {
                        "authenticationFlowType": "USER_SRP_AUTH"
                    }
                }
            }
        }
    }
}

您的 awsconfiguration.json 应如下所示：

{
    "UserAgent": "aws-amplify-cli/0.1.0",
    "Version": "0.1.0",
    "IdentityManager": {
        "Default": {}
    },
    "CredentialsProvider": {
        "CognitoIdentity": {
            "Default": {
                "PoolId": "us-east-1:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
                "Region": "us-east-1"
            }
        }
    },
    "CognitoUserPool": {
        "Default": {
            "PoolId": "us-east-1_xxxxxxxxx",
            "AppClientId": "xxxxxxxxxxxxxxxxxxxxxxxxxx",
            "AppClientSecret":
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
            "Region": "us-east-1"
        }
    },
    "Auth": {
        "Default": {
            "authenticationFlowType": "USER_SRP_AUTH"
        }
    }
}

Answer 2

如果您刚刚添加了 Cognito，运行

amplify update api

使用 Cognito 作为身份验证模式。

然后运行

amplify push

Answer 3

几天来我也遇到了同样的错误，您刚刚向项目添加了基本文件，现在您需要为 Amplify 定义用户池以向两个配置文件添加更多数据。您需要运行这些命令才能解决此问题。

amplify init // It will make sure you have basic setup added
amplify add auth // It will add auth data and user pools to config files
amplify push // It will push all the setup to amplify cloud

希望它能解决您的问题:)

Android 应用程序中的 AWS Amplify Recognized Auth 错误

AWS Amplify Cognito Auth error in Android app

authentication

android

amazon-cognito

aws-amplify