Write cognito pool and client id's to local file on creation

Serverless Framework
1

hello,

we are using serverless, to create an cognito pool, for an app which is deployed in different AWS accounts.

During the pool generation we, receive a pool and client id. Which we automatically would like to be save in a local file, to be reused by other components, like an angular frontend, utilzing this api. To not have to manually intervene.

Example:

we have these 2 defined variables:

{ Ref: UserPool }
{ Ref: UserClient }

which are correctly exported to the lambda functions, etc.

environment:
user_pool_id: { Ref: UserPool }
client_id: { Ref: UserClient }

and we would also like to write them to an external yml,ts,json file like this

export const environment = {
production: true,

cognito: {
userPoolId: ‘POOL_ID’,
userPoolWebClientId: ‘CLIENT_ID’,
},
};

to utilize it.

any suggestions or best practices how to accomplish this, without having to write a plugin?