错误消息:nodejs api使用serverless部署到awsapiggateway后，内部服务器错误

Question

我的nodejs应用程序在我的本地没有无服务器的情况下工作完美。但是，当我使用无服务器部署相同的应用程序时。我得到这个错误"内部服务器错误"。我试图上传文件在我的s3bucket。我不确定我是否在我的无服务器中缺少任何权限相关代码。请帮助。

Myserverless.yml

service: nodejss3uploader
# Check out our docs for more details
frameworkVersion: '3'
provider:
name: aws
runtime: nodejs16.x
memorySize: 2048
stage: prod
timeout: 15
region: us-east-1
iam:
role:
statements:
# Allow functions to list all buckets
- Effect: Allow
Action: 's3:ListBucket'
Resource: '*'
# Allow functions to read/write objects in a bucket
- Effect: Allow
Action:
- 's3:GetObject'
- 's3:PutObject'
Resource:
- 'arn:aws:s3:::bucket-assets/*'
functions:
uploadtoS3:
handler: handler.uploadtoS3
events:
- http: 
path: upload/aws
method: POST
environment:
AWS_ACCESS_ID: 123654123654123
AWS_SKEY: awesomeawskeypackage
AWS_S3_BUCKET: bucket-assets

handlers.js代码

'use strict';
const app = require('./bin/www');
const serverless = require('serverless-http');
module.exports.handler = serverless(app);

www.js代码

var app = require('../app');
var debug = require('debug')('fileuploader:server');
var http = require('http');
var port = normalizePort(process.env.PORT || '80');
app.set('port', port);
var server = http.createServer(app);
server.listen(port);
server.on('error', onError);
server.on('listening', onListening);
function normalizePort(val) {
var port = parseInt(val, 10);
if (isNaN(port)) {
// named pipe
return val;
}
if (port >= 0) {
// port number
return port;
}
return false;
}
function onError(error) {
if (error.syscall !== 'listen') {
throw error;
}
var bind = typeof port === 'string'
? 'Pipe ' + port
: 'Port ' + port;
switch (error.code) {
case 'EACCES':
console.error(bind + ' requires elevated privileges');
process.exit(1);
break;
case 'EADDRINUSE':
console.error(bind + ' is already in use');
process.exit(1);
break;
default:
throw error;
}
}
function onListening() {
var addr = server.address();
var bind = typeof addr === 'string'
? 'pipe ' + addr
: 'port ' + addr.port;
debug('Listening on ' + bind);
}

Answer 1

我已经设法解决了这个问题。

我必须改变我的hander.js代码为。我导入的是app.js文件而不是www.js。App.js代码中有需要执行的函数

'use strict';
const app = require('./app');
const serverless = require('serverless-http');
module.exports.uploadtoS3 = serverless(app)

app.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
let bodyParser = require('body-parser');
var indexRouter = require('./routes/index');
var uploaderRoute = require('./routes/upload.route');
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
app.use(logger('dev'));
/* app.use(express.json());
app.use(express.urlencoded({ extended: false })); */
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', indexRouter);
app.use('/upload', uploaderRoute);
// catch 404 and forward to error handler
app.use(function(req, res, next) {
next(createError(404));
});
// error handler
app.use(function(err, req, res, next) {
// set locals, only providing error in development
res.locals.message = err.message;
res.locals.error = req.app.get('env') === 'development' ? err : {};
// render the error page
res.status(err.status || 500);
res.render('error');
});
module.exports = app;

和serverless。我什么都没变。这样我就可以执行了。