当拉入lambda时，请求体有时（少于1％的时间）为null。我一次一个地处理14,000个请求机构的订单。任何错误的请求机构都必须手动处理。为什么身体随机变成空？
示例代码从prompt（节点索引）运行：
const async = require('async');
const _ = require('lodash');
const moment = require('moment');
const Client = require('node-rest-client').Client;
const fs = require('fs');
const input = require('./TestFull.json');
module.exports = () => {
const filename = `./eventfulFails-${new moment().format("YYYY-MM-DD-HHmmss")}.json`;
console.log('Start Time: ', new moment().format("HH:mm:ss"));
let failedObjects = {
events: [],
venues: [],
performers: []
};
async.parallel([
async.apply(processVenues, input.venues, failedObjects),
async.apply(processPerformers, input.performers, failedObjects)
], (lookupErr) => {
if (lookupErr) {
return console.error('Error processing venues and performers.', lookupErr);
}
console.log('Start Events: ', new moment().format("HH:mm:ss"));
async.waterfall([
async.apply(processEvents, input.events, failedObjects)
], (eventErr) => {
if (eventErr) {
console.log('Time of Failure: ', new moment().format("HH:mm:ss"));
return console.error('Error processing events.', eventErr);
}
console.log('End Time: ', new moment().format("HH:mm:ss"));
if (failedObjects.events.length || failedObjects.venues.length || failedObjects.performers.length) {
const stream = fs.createWriteStream(filename);
stream.once('open', function(fd) {
stream.write(JSON.stringify(failedObjects));
stream.end();
});
}
});
});
};
function processVenues(venues, failedObjects, callback) {
const calls = [];
for (let i = 0; i < venues.length; i++) {
const v = venues[i];
calls.push(async.apply((venue, postCallback) => {
const client = new Client();
const args = {
data: venue,
headers: {"Content-Type": "application/json"}
};
client.post('https://hm1br4yo34.execute-api.us-west-2.amazonaws.com/dev/eventful-venue', args, (data, response) => {
if (response.statusCode !== 200 && response.statusCode !== 201) {
failedObjects.venues.push({
venue,
response
});
console.log('venue status code: ', response);
console.log('venue data: ', venue);
}
return postCallback(null);
});
}, v));
}
async.waterfall(calls, callback);
}
function processPerformers(performers, failedObjects, callback) {
const calls = [];
for (let i = 0; i < performers.length; i++) {
const v = performers[i];
calls.push(async.apply((performer, postCallback) => {
const client = new Client();
const args = {
data: performer,
headers: {"Content-Type": "application/json"}
};
client.post('https://hm1br4yo34.execute-api.us-west-2.amazonaws.com/dev/eventful-performer', args, (data, response) => {
if (response.statusCode !== 200 && response.statusCode !== 201) {
failedObjects.performers.push({
performer,
response
});
console.log('performer status code: ', response);
console.log('performer data: ', performer);
}
return postCallback(null);
});
}, v));
}
async.waterfall(calls, callback);
}
function processEvents(events, failedObjects, callback) {
const calls = [];
for (let i = 0; i < events.length; i++) {
const v = events[i];
calls.push(async.apply((event, postCallback) => {
const client = new Client();
const args = {
data: event,
headers: {"Content-Type": "application/json"}
};
client.post('https://hm1br4yo34.execute-api.us-west-2.amazonaws.com/dev/eventful', args, (data, response) => {
if (response.statusCode !== 200 && response.statusCode !== 201) {
failedObjects.events.push({
event,
response
});
console.log('event status code: ', response);
console.log('event data: ', event);
}
return postCallback(null);
});
}, v));
}
async.waterfall(calls, callback);
}
if (!module.parent) {
module.exports();
}
函数processVenues（eventful-venue-load）被称为：
const _ = require('lodash');
const AWS = require('aws-sdk');
const async = require('async');
const sdk = require('@consultwithmikellc/withify-sdk');
const host = process.env.aurora_host;
const user = process.env.aurora_user;
const database = process.env.aurora_database;
let decryptedPassword;
const lambda = new AWS.Lambda({
region: 'us-west-2' //your region
});
class WithifyEventCreate extends sdk.Lambda {
constructor(event, context, keysToDecrypt) {
super(event, context, keysToDecrypt);
this.getLocation = this.getLocation.bind(this);
this.insertLocations = this.insertLocations.bind(this);
this.insertLocationImages = this.insertLocationImages.bind(this);
}
decryptedKey(key, value) {
switch (key) {
case 'aurora_password':
decryptedPassword = value;
break;
}
}
initializeComplete() {
this.connect(host, user, decryptedPassword, database, true);
}
connectComplete() {
async.waterfall(
[
this.getLocation,
this.insertLocations,
this.insertLocationImages
]
);
}
getLocation(callback) {
const {id: eventfulLocationID} = this.body;
this.connection.query('SELECT * FROM `Location` WHERE `eventfulLocationID` = ?',
[eventfulLocationID],
(err, results) => {
if (err) {
// error call block
return this.sendResponse(err, this.createResponse(500));
} else if (results.length === 1) {
console.log('Invoking withify-eventful-venue-update...');
lambda.invoke({
FunctionName: 'withify-eventful-venue-update',
Payload: JSON.stringify(this.event)
}, (error, data) => {
return this.sendResponse(null, JSON.parse(data.Payload));
});
} else if (results.length > 1) {
return this.sendResponse(`The location lookup produced multiple results. event:${JSON.stringify(this.body)}`, this.createResponse(500));
} else {
return callback(null);
}
}
);
}
insertLocations(callback) {
const {name: locationName, address: street, city, region_abbr: state, postal_code,
description, id: eventfulLocationID, latitude: lat, longitude: lng, withdrawn: locationWithdrawn} = this.body;
let addresses = street.concat(', ', city, ', ', state, ', ', postal_code);
if (!description.length){
var phones = "";
}else{
var re = /(([\(][0-9]{3}[\)][\s][0-9]{3}[-][0-9]{4})|([0-9]{3}[-][0-9]{3}[-][0-9]{4})|([0-9]{3}[\.][0-9]{3}[\.][0-9]{4}))/i;
this.body.found = description.match(re);
if (!this.body.found){
var phone = "";
}else{
if (!this.body.found.length){
var phone = "";
}else{
var phone = this.body.found[0];
}
}
}
this.connection.query('INSERT IGNORE INTO `Location` (`locationName`, `address`, ' +
'`phone`, `lat`, `lng`, `eventfulLocationID`, `locationWithdrawn`) VALUES (?, ?, ?, ?, ?, ?, ?)',
[locationName, addresses, phone, lat, lng, eventfulLocationID, locationWithdrawn],
(err, results) => {
if (err) {
return this.sendResponse(err, this.createResponse(500));
}
this.body.locationID = results.insertId;
return callback(null);
}
);
}
insertLocationImages(callback) {
var altText = "";
const images = _.flatten(this.body.images.map(im => {
return _.map(im.sizes, (ims, idx) => {
const title = `Image ${idx}`;
return [
this.body.locationID,
this.body.name,
ims.url,
null,
null,
this.body.id,
ims.width,
ims.height
];
});
}));
if(!images[0]){
return this.sendResponse(null, this.createResponse(201, this.body));
}
this.connection.query('INSERT IGNORE INTO `LocationImage` (`locationID`, `imageTitle`, `imageUrl`, ' +
'`imageName`, `altText`, `eventfulLocationID`, `width`, `height`) VALUES ?',
[images],
(err, results) => {
if (err) {
return this.sendResponse(err, this.createResponse(500));
} else if (results.affectedRows !== images.length) {
return this.sendResponse('The image inserts did not affect the right number' +
' of rows.', this.createResponse(500));
}
return this.sendResponse(null, this.createResponse(201, this.body));
}
);
}
}
exports.handler = (event, context) => {
const withifyEventCreate = new WithifyEventCreate(event, context, ['aurora_password']);
withifyEventCreate.initialize([decryptedPassword]);
};