1.使用aws-sdk-js库连接到AWS Cognito服务。

const AWS = require('aws-sdk'); AWS.config.update({region: 'aws-region'});

const cognito = new AWS.CognitoIdentityServiceProvider();

2.使用adminDeleteUser()方法删除Cognito用户。它需要包含用户池ID和要删除的用户名作为参数。

var params = { UserPoolId: 'user-pool-id', Username: 'username' };

cognito.adminDeleteUser(params, function(err, data) { if (err) console.log(err, err.stack); else console.log(data); });

3.使用adminGetUser()方法检查要删除的用户是否存在。它需要包含用户池ID和要检索的用户名作为参数。

var params = { UserPoolId: 'user-pool-id', Username: 'username' };

cognito.adminGetUser(params, function(err, data) { if (err) console.log(err, err.stack); else console.log(data); });

4.如果adminGetUser()方法返回NotFoundException，则表示用户已被成功删除。

示例：

const AWS = require('aws-sdk'); AWS.config.update({ region: 'us-east-1' });

const cognito = new AWS.CognitoIdentityServiceProvider();

const deleteUser = async (userName) => { const params = { UserPoolId: 'us-east-1_abcde', Username: userName };

try {
    await cognito.adminDeleteUser(params).promise();
    console.log('User deleted successfully');

    try {
        await cognito.adminGetUser(params).promise();
    } catch (error) {
        if (error.code === 'UserNotFoundException') {
            console.log('User was deleted successfully.');
        }
        else {
            throw error;
        }
    }

} catch (error) {
    console.error(error);
}

};

deleteUser('test_user');