@types/aws-lambda/trigger/cognito-user-pool-trigger/_common.d.ts

export interface StringMap {
  [name: string]: string;
}

export type ChallengeName =
  | 'PASSWORD_VERIFIER'
  | 'SMS_MFA'
  | 'DEVICE_SRP_AUTH'
  | 'DEVICE_PASSWORD_VERIFIER'
  | 'ADMIN_NO_SRP_AUTH'
  | 'SRP_A';

export interface ChallengeResult {
  challengeName: ChallengeName;
  challengeResult: boolean;
  challengeMetadata?: undefined;
}

export interface CustomChallengeResult {
  challengeName: 'CUSTOM_CHALLENGE';
  challengeResult: boolean;
  challengeMetadata?: string | undefined;
}

/**
 * Common attributes shared by all User Pool Lambda Trigger Events
 * @see https://docs.aws.amazon.com/cognito/latest/developerguide/cognito-user-identity-pools-working-with-aws-lambda-triggers.html#cognito-user-pools-lambda-trigger-event-parameter-shared
 */
export interface BaseTriggerEvent<T extends string> {
  version: string;
  region: string;
  userPoolId: string;
  triggerSource: T;
  userName: string;
  callerContext: {
      awsSdkVersion: string;
      clientId: string;
  };
  request: {};
  response: {};
}