Amazon web services 如何使用Amazon Cognito创建无缝无密码注册/登录？

我有一个在Vue中运行的应用程序，它使用AWS Amplify和AWS Cognito identity sdk的混合。我的目标是创建无密码登录和注册。我现在已经让它工作到用户可以注册的程度，他们会得到一个电子邮件链接并点击它，然后它会将他们发送回带有url查询中验证码的站点

然后，当我在代码中解析该查询以进行身份验证时，我遇到了一个错误，使我陷入了一个解决方案的兔子洞。我的实现使用与这里相同的方法

我面临的问题是，当我找回代码时，我会将其发送到Cognito中的挑战答案，然后返回一个空会话。请参阅下面的代码

发送电子邮件的注册代码：

async identitySignUp({ commit }, payload) {
      console.log(commit)
      let password =
        randomCharGenerator(8, "lower") +
        randomCharGenerator(8, "upper") +
        randomCharGenerator(8, "number") +
        randomCharGenerator(8, "symbol")
      await Auth.signUp(payload, password)
        .then(data => {
          console.log(data)
          Auth.signIn(data.user.username)
          localStorage.setItem(
            "cognitoUser",
            JSON.stringify({
              username: payload,
              session: data.user.Session
            })
          )
        })
        .catch(e => {
          if (e.code && e.code === "UsernameExistsException") {
            console.log(e)
          } else {
            console.log(e)
          }
        })
      // console.log(user, commit)

}

在上述代码中，有效负载是电子邮件。当I console.log退出此代码时：

await Auth.signUp(payload, password)
            .then(data => {
              console.log(data)

当用户没有会话时，我会得到奇怪的结果：

codeDeliveryDetails: undefined
user: CognitoUser
Session: null
authenticationFlowType: "USER_SRP_AUTH"
client: Client {endpoint: "https://cognito-idp.eu-west-2.amazonaws.com/", fetchOptions: {…}}

然后我有一个从url查询中获取代码的函数：

async answerChallenge(answer) {
      try {
        this.loading = true
        await this.$store.dispatch("identity/answerCustomChallenge", answer)
        this.loading = false
      } catch (error) {
        this.loading = false
        this.$store.dispatch(
          "errors/ERRORS_ADD",
          Object.assign(error, { type: errorTypes.AUTH_LOGIN }),
          { root: true }
        )
      }
    },
    async getVerificationCode() {
      let validationcode = this.$route.query.validation
      // let email = this.$route.query.email
      if (validationcode) {
        this.answerChallenge(validationcode)
      }
    }

正如您所知，我从url获取代码，并将其传递给challengeAnswer，后者将传递给Cognito。我在这里面临的问题是，当我通过这个答案时，我会得到一个奇怪的错误：

code: "InvalidParameterException"
message: "Missing required parameter Session"
name: "InvalidParameterException"

这链接到用户中缺少的会话。下面是将代码发送到lambda的challengeAnswer函数：

async answerCustomChallenge({ commit }, payload) {
      console.log(commit)
      const user = JSON.parse(localStorage.getItem("cognitoUser"))
      console.log(user)
      // rehydrate the CognitoUser
      const authenticationData = {
        Username: user.username
      }
      const authenticationDetails = new AmazonCognitoIdentity.AuthenticationDetails(
        authenticationData
      )
      console.log(authenticationDetails)
      const poolData = {
        UserPoolId: awsConfig.aws_user_pools_id,
        ClientId: awsConfig.aws_user_pools_web_client_id
      }
      const userPool = new AmazonCognitoIdentity.CognitoUserPool(poolData)
      const userData = {
        Username: user.username,
        Pool: userPool
      }
      const cognitoUser = new AmazonCognitoIdentity.CognitoUser(userData)
      console.log(cognitoUser)
      // After this set the session to the previously stored user session
      cognitoUser.Session = user.session
      // rehydrating the user and sending the auth challenge answer directly will not
      // trigger a new email
      cognitoUser.setAuthenticationFlowType("CUSTOM_AUTH")

      // Auth.sendCustomChallengeAnswer(payload)

      cognitoUser.sendCustomChallengeAnswer(payload, {
        async onSuccess(success) {
          console.log(success)
          // If we get here, the answer was sent successfully,
          // but it might have been wrong (1st or 2nd time)
          // So we should test if the user is authenticated now
          try {
            // This will throw an error if the user is not yet authenticated:
            const user = await Auth.currentSession()
            console.log(user)
          } catch {
            console.error("Apparently the user did not enter the right code")
          }
        },
        onFailure(failure) {
          console.error(failure)
        }
      })
    }

有人能告诉我他们认为我可能出了问题吗