给出下面的代码,当响应成功或失败时,如何将响应输出回网页?
loginUser(data) {
var authenticationData = {
Username : data.email,
Password : data.password
};
var authenticationDetails = new AmazonCognitoIdentity.AuthenticationDetails(authenticationData);
var userPool = new AmazonCognitoIdentity.CognitoUserPool(config.cognito);
var userData = {
Username : data.email,
Pool : userPool
};
var cognitoUser = new AmazonCognitoIdentity.CognitoUser(userData);
var output = null;
cognitoUser.authenticateUser(authenticationDetails, {
onSuccess: function (result) {
output = result;
return output;
},
onFailure: function(err) {
console.log(err);
},
});
}
<div id="test_mg"></div>
您可以使用async function
and Promise
为了从异步调用中获取结果。
function loginUser(data) {
var authenticationData = {};
var authenticationDetails = new AmazonCognitoIdentity.AuthenticationDetails(authenticationData);
var userPool = new AmazonCognitoIdentity.CognitoUserPool(config.cognito);
var userData = {};
var cognitoUser = new AmazonCognitoIdentity.CognitoUser(userData);
var output = null;
return new Promise(function(resolve, reject) {
cognitoUser.authenticateUser(authenticationDetails, {
onSuccess: resolve,
onFailure: reject,
});
});
}
async function main() {
try {
var output = await loginUser(data);
} catch(e) {
console.log(e);
}
}
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