问题描述
我正在尝试使用浏览器脚本方法连接AWS Cognito。 使用来自AWS Blog https://aws.amazon.com/blogs/mobile/accessing-your-user-pools-using-the-amazon-cognito-identity-sdk-for-javascript/的以下代码获取未捕获的ReferenceError：未定义AWSCognito 。错误的摘要。
**
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<!-- Javascript SDK-->
<script src="https://sdk.amazonaws.com/js/aws-sdk-2.410.0.min.js"></script>
</head>
<body>
<h1 class="h3 mb-3 font-weight-normal" id="titleheader">Register an Account</h1>
<input type="personalname" class="form-control" id="personalnameRegister" placeholder="Name" pattern=".*" required>
<input type="email" class="form-control" id="emailInputRegister" placeholder="Email" pattern=".*" required>
<input type="password" class="form-control" id="passwordInputRegister" placeholder="Password" pattern=".*" required>
<!-- <input type="password" class="form-control" id="confirmationpassword" placeholder="Confirm Password" pattern=".*" required> -->
<button id="mainbutton" class="btn btn-lg btn-primary btn-block" type="button" onclick="registerButton()" >Register</button>
<script type="text/javascript">
// Amazon Cognito creates a session which includes the id,access,and refresh tokens of an authenticated user.
function registerButton() {
username = document.getElementById("emailInputRegister").value;
password = document.getElementById("passwordInputRegister").value;
var authenticationData = {
Username : username,<!-- Password : password,-->
};
var authenticationDetails = new AWSCognito.CognitoIdentityServiceProvider.AuthenticationDetails(authenticationData);
var poolData = { UserPoolId :<POOLID>,ClientId :<clientId>
};
var userPool = new AWSCognito.CognitoIdentityServiceProvider.CognitoUserPool(poolData);
<!-- var userPool = new AmazonCognitoIdentity.CognitoUserPool(poolData); -->
Console.log(userPool)
var userData = {
Username : document.getElementById("emailInputRegister").value,Pool : userPool
};
var cognitoUser = new AWSCognito.AmazonCognitoIdentity.CognitoUser(userData);
cognitoUser.authenticateUser(authenticationDetails,{
onSuccess: function (result) {
var accessToken = result.getAccessToken().getJwtToken();
/* Use the idToken for Logins Map when Federating User Pools with identity pools or when passing through an Authorization Header to an API Gateway Authorizer */
var idToken = result.idToken.jwtToken;
},onFailure: function(err) {
alert(err);
},});
}
</script>
</body>
</html>**
解决方法
您需要在head元素中包含amazon-cognito js文件。您可以检查当前控制台以查看当前尚未定义AWSCognito。
<script src="https://rawgit.com/aws/amazon-cognito-identity-js/master/dist/aws-cognito-sdk.min.js"></script>
<script src="https://rawgit.com/aws/amazon-cognito-identity-js/master/dist/amazon-cognito-identity.min.js"></script>
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