有没有办法使用 lambda 从认知池中批量删除用户？

Question

I am using congnito to authenticate users to my app, and i have a crud where i can handle them one by one, but there are cases when i want to delete them all at once in a single batch operation.

The problem is that the docs say nothing about this and other A&Q sites say that there is not way for this.

I was thinking to use Promise.all() in an array of cognito clients to delete them in a single batch? but i don't know if it's possible or this may couse timeout in my lanmbda?

something like this i had in mind.

// const data = req.body.users;
const aws = require('aws-sdk');
const CognitoIdentityServiceProvider = aws.CognitoIdentityServiceProvider;

const toDelete = [];
data.forEach((item) => {
    const client = new CognitoIdentityServiceProvider({ apiVersion: '2016-04-19', region: 'us-east-1' });
    toDelete.push(cliente.adminDeleteUser(/* data */));
})
Promise.all(toDelete).then(() => { /* something */ });

Could this work? is bad practice? is there a better way?

Answer 1

Another option without using the lambda functions is, if you have configured aws cli in windows, you can use the following script as a bat file to delete the users listed on a single page from the listing command output, repeat until all users are deleted.

You need to have JQ downloaded and its path added to system env path for the following to work.

---delete.bat---

@echo off setlocal

for /f "delims=" %%I in ('aws cognito-idp list-users --user-pool-id $COGNITO_USER_POOL_ID ^| jq -r ".Users | .[] | .Username"') do ( aws cognito-idp admin-delete-user --user-pool-id $COGNITO_USER_POOL_ID --username %%I echo %%I deleted )

---delete.bat---