Use existing AWS resources

import { Amplify } from 'aws-amplify';

Amplify.configure({
  ...Amplify.getConfig(),
  Analytics: {
    ...Amplify.getConfig().Analytics,
    Pinpoint: {
      // REQUIRED -  Amazon Pinpoint App Client ID
      appId: 'XXXXXXXXXXabcdefghij1234567890ab',

      // REQUIRED -  Amazon service region
      region: 'us-east-1',

      // OPTIONAL - How many events can be buffered at once.
      bufferSize: 1000,

      // OPTIONAL - How many events will be flushed from the buffer per batch.
      flushSize: 100,

      // OPTIONAL - The interval in milliseconds to perform a buffer check and flush if necessary.
      flushInterval: 5000, // 5s

      // OPTIONAL - The limit for failed recording retries.
      resendLimit: 5
    }
  }
});

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": ["mobiletargeting:UpdateEndpoint", "mobiletargeting:PutEvents"],
      "Resource": ["arn:aws:mobiletargeting:*:${accountID}:apps/${appId}*"]
    }
  ]
}