Demonstrates how to use the cloud_functions plugin.

This example assumes the existence of the following function:

import * as functions from 'firebase-functions';

export const repeat = functions.https.onCall((data, context) => {
  return {
      repeat_message: data.message,
      repeat_count: data.count + 1,
  }
});

This function accepts a message and count from the client and responds with the same message and an incremented count.

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