在使用 AWS SDK Javascript v3 进行 Alexa 技能构建时从哪里开始调试“ResourceNotFoundException”

如何解决在使用 AWS SDK Javascript v3 进行 Alexa 技能构建时从哪里开始调试“ResourceNotFoundException”

我正在使用 node.js 构建 Alexa 托管技能，并且我想在我的个人 AWS 账户中包含来自 DynamoDB 表的用户特定数据。我已经设置了一个具有 DynamoDB 表访问权限的 Cognito 身份池，并设法使用适用于 Javascript 的 AWS 开发工具包 (v3) 检索凭证，但是当我尝试使用 DynamoDB 客户端访问该表时，我收到“未找到资源” " 异常。

我什至不知道如何访问请求对象来尝试诊断问题！如果成功，原始请求似乎将作为响应的一部分返回，但错误对象仅包含一个请求 ID 字符串，它不会告诉我任何信息。如果有人能告诉我我做错了什么，那就太好了，但如果我能得到一些关于如何获取更多信息以开始调试的指示，我可能会解决这个问题！由于我不在北美，因此本地调试工具包似乎对我不可用，因此我所要做的就是使用带有 lambda CloudLogs 的 Alexa 开发人员控制台代码编辑器/模拟器。

非常感谢所有想法，谢谢！

Alexa 技能代码

const NewSessionRequestInterceptor = {
    async process(handlerInput) {
    if(isNewSession(handlerInput.requestEnvelope)){
        const cognitoIdentityClient = new CognitoIdentityClient({region: "eu-west-1"});
        const amazonAccesstoken = getAccountLinkingAccesstoken(handlerInput.requestEnvelope);
        const cgGetIdCommand = new GetIdCommand({
            IdentityPoolId: 'eu-west-1:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',Logins:{'www.amazon.com':amazonAccesstoken}
        });
        const cgIdStr = await cognitoIdentityClient.send(cgGetIdCommand);
        const cgGetCredentialsCommand = new GetCredentialsForIdentityCommand({
            IdentityId:cgIdStr.IdentityId,Logins:{'www.amazon.com':amazonAccesstoken}
        });
        const cgCredentials = await cognitoIdentityClient.send(cgGetCredentialsCommand);
        const DynamoDBClientConfig = Object.assign(
            {identityId:cgIdStr.IdentityId,region:"eu-west-1"},cgCredentials.Credentials
        );
        const ddbClient = new DynamoDBClient(DynamoDBClientConfig);
        const ddbDocclient = DynamoDBDocumentClient.from(ddbClient);
        const command = new GetCommand({
            TableName:"MySkillData",Key:{'UserId':cgIdStr.IdentityId,'ItemKey':"Settings"},ConsistentRead:true
        })
        var Response;
        try{
            Response = await ddbDocclient.send(command);
        }catch(err){Response = err}
        handlerInput.attributesManager.setSessionAttributes({cgCredentials,Response});
    }}}

请求错误/凭据（保存到会话属性并在技能响应中返回）

"sessionAttributes": {
    "Response": {
        "name": "ResourceNotFoundException","$fault": "client","$Metadata": {
            "httpStatusCode": 400,"requestId": "xxxxxxxxxxxxxxx","attempts": 1,"totalRetryDelay": 0
        }
    },"cgCredentials": {
        "$Metadata": {
            "httpStatusCode": 200,"requestId": "xxxxxxxxxxxxxxxx","totalRetryDelay": 0
        },"Credentials": {
            "AccessKeyId": "xxxxxxxxx","Expiration": "2021-04-20T14:20:04.000Z","SecretKey": "xxxxxxxxxx","SessionToken": "xxxxxxxxxxxxx"
        },"IdentityId": "eu-west-1:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}}

Cognito 身份池授权角色权限政策

{    "Version": "2012-10-17","Statement": [
        {
            "Effect": "Allow","Action": [
                "dynamodb:BatchGetItem","dynamodb:BatchWriteItem","dynamodb:DeleteItem","dynamodb:GetItem","dynamodb:PutItem","dynamodb:Query","dynamodb:UpdateItem"
            ],"Resource": [
                "arn:aws:dynamodb:eu-west-1:xxxxxxxxxxxx:table/"MySkillData"
            ],"Condition": {
                "ForAllValues:StringEquals": {
                    "dynamodb:LeadingKeys": [
                        "${cognito-identity.amazonaws.com:sub}"]}}}]}

Cognito 身份池授权角色信任关系政策

{   "Version": "2012-10-17","Statement": [
      {
        "Effect": "Allow","Principal": {
          "Federated": "cognito-identity.amazonaws.com"
        },"Action": "sts:AssumeRoleWithWebIdentity","Condition": {
          "StringEquals": {
            "cognito-identity.amazonaws.com:aud": "eu-west-1:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'"
          },"ForAnyValue:StringLike": {
            "cognito-identity.amazonaws.com:amr": "authenticated"}}}]}