fluct+API Gateway+Lambda+DynamoDBでJavaScriptのエラーログ収集 ref: http://qiita.com/okmttdhr/items/c9b7c2ca81a78fe8af50

file0.txt

{
  stack: [
    {functionName: 'fn', fileName: 'file.js', lineNumber: 32, columnNumber: 1},
    {functionName: 'fn2', fileName: 'file.js', lineNumber: 543, columnNumber: 32},
    {functionName: 'fn3', fileName: 'file.js', lineNumber: 8, columnNumber: 1}
  ]
}

file1.txt

  "fluct": {
    "accountId": "",
    "restapiId": "",
    "roleName": "lambdaLoggingApp",
    "region": "ap-northeast-1"
  },

file2.txt

var Promise = require('bluebird');
var uuid = require('uuid');
var AWS = require('aws-sdk');
var dynamodb = new AWS.DynamoDB({region: 'ap-northeast-1'});

function putItem(query) {
  return new Promise(function(resolve, reject) {
    var params = {
      TableName: query.tableName,
      Item: {
        'Id': {'S': uuid.v1()},
        'Date': {'N': query.date},
        'Stack': {'S': query.stack},
      },
    };
    dynamodb.putItem(params, function(err, data) {
      if (err) return reject(err);
      return resolve(JSON.stringify(data));
    });
  });
}

exports.handler = function(event, context) {
  if (!event || !event.requestParameters) {
    return context.done(null, {
      'status': 404,
      'message': 'Invalid Parameters'
    });
  };

  var query = {
    tableName: event.requestParameters.tableName,
    stack: event.requestParameters.stack,
    date: event.requestParameters.date,
  };

  putItem(query)
    .then(function() {
      context.done(null, {
        'status': 200,
        'message': 'OK'
      });
    })
    .catch(function(err) {
      context.done(null, {
        'status': null,
        'message': err,
      });
    })
};

file3.txt

import request from 'superagent';
import Promise from 'bluebird';
import StackTrace from 'stacktrace-js';
import moment from 'moment';
import { LOGGING_DB, LOGGING_ENDPOINT } from 'config';

/**
 * エラーログをポストする。
 * @param {Object} query
 * @return {Object}
 */
function _postLog(query) {
  return new Promise((resolve, reject)=> {
    request
      .post(LOGGING_ENDPOINT)
      .send(query)
      .end(function(err, res) {
        if (err) return reject(err);
        return resolve(res.text);
      });
  });
}

/**
 * エラーログ収集のlambda関数を実行する
 */
export function logError() {
  window.onerror = function(msg, file, line, col, error) {
    StackTrace
      .fromError(error)
      .then((stackframes) => {
        const query = {
          tableName: LOGGING_DB,
          stack: JSON.stringify(stackframes),
          date: moment().format('YYYYMMDDHHmmss'),
        };
        return _postLog(query);
      })
      .catch((err) => {
        console.log(err);
      });
  };
}

file4.txt

import Log from 'error-log-module';

const log = new Log({
  LOGGING_DB,
  LOGGING_ENDPOINT,
});

log.start();