v3.7.0

• Adds functions.logger SDK to enable structured logging in the Node.js 10 runtime. For example:

  const functions = require('firebase-functions');
  
  functions.logger.debug('example log with structured data', {
    uid: user.uid,
    authorized: true,
  });

• Adds a special require that mimics Node.js 8 runtime logging in Node.js 10 and later runtimes:

  require('firebase-functions/lib/logger/compat');

  In newer runtimes, requiring this will emit text logs with multi-line support and appropriate severity. In the Node.js 8 runtime, the compat module has no effect.

• Fixes https.onRequest type signature to allow Promises for async functions.