Event Type for CognitoEventUserPoolsCustomEmailSender

[makeitraina]

Is your feature request related to a problem? Please describe.
The events types include types for all cognito event triggers except for the custom sender triggers. It seems there should be types for the custom email sender event and custom sms sender event. This is so that the functionality described here can be implemented in a golang lambda.

Describe the solution you'd like
I think the solution is to have an event type for CognitoEventUserPoolsCustomEmailSender

Describe alternatives you've considered
Trying to use the existing type of CognitoEventUserPoolsCustomMessage since it most closely resembles this function. Naturally I have not tested this extensively to see what data is missing/would cause an error.

My current handler signature looks like

func handler(event events.CognitoEventUserPoolsCustomMessage) (events.CognitoEventUserPoolsCustomMessage, error) {

[PrakashSuthar]

@makeitraina
Were u able to use custom sender triggers using the above function signature of CustomMessage?

[BorisLeMeec]

@PrakashSuthar
I tried with events.CognitoEventUserPoolsCustomMessage and the lambda seems to work but there is at least the request.Trigger.Code that is missing. (the code used to confirm an email or a phone number). So unexploitable.

[geekytaurus115]

CognitoEventUserPoolsCustomMessage

I'm facing the same issue, unable to find Request.Code inside the struct CognitoEventUserPoolsCustomMessage although there is a key named Request.CodeParameter, is this the same?

[KlemenKozelj]

There seems to be an issue with official event struct CognitoEventUserPoolsCustomMessage:

aws-lambda-go/events/cognito.go

Line 291 in de51f68

type CognitoEventUserPoolsCustomMessage struct {

Actual event that is received into lambda is:

{
        "callerContext": {
            "awsSdkVersion": "aws-sdk-unknown-unknown",
            "clientId": "clientId"
        },
        "region": "eu-central-1",
        "request": {
            "clientMetadata": null,
            "code": "cipher text",
            "type": "customEmailSenderRequestV1",
            "userAttributes": {
                "cognito:email_alias": "john.doe@email.com",
                "cognito:user_status": "UNCONFIRMED",
                "email": "john.doe@email.com",
                "email_verified": "false",
                "sub": "1-2-3"
            }
        },
        "triggerSource": "CustomEmailSender_ResendCode",
        "userName": "1-2-3",
        "userPoolId": "eu-central-1_123",
        "version": "1"
    }

[bradmcf]

This is an issue with the CognitoEventUserPoolsCustomMessage struct as @KlemenKozelj mentioned above.

The specific issue is the json attribute that the struct is searching for to populate the CodeParameter value. It is searching for codeParameter but it should be searching for code.

I worked around this by copying those structs into my lambda and modifying the above, then using that type directly instead of using it under the events namespace.

Would be good for this to get a fix.