tracing-post-block-1.js

const iopipeLib = require('iopipe');
const tracePlugin = require('iopipe-plugin-trace');

const iopipe = iopipeLib({
  plugins: [tracePlugin()]
});

// wrap your lambda handler
exports.handler = iopipe((event, context) => {
  const mark = context.iopipe.mark;
  mark.start('database');
  // after database call is finished
  mark.end('database');

  mark.start('analytics');
  // after analytics call is finished
  mark.end('analytics');
  context.succeed('Wow!');
});