Multiple concurrent http requests returning a 400 bad request
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I have an angular app in node that uses express to route various different http requests. I first ran into this problem when multiple users tried to upload files using the app at the same time. I first thought this was a problem with global scoped variables that reset the data of overlapping async/await requests.
However, I was able to replicate this problem ("Failed to load resource: the server responded with a status of 400") with a curl to the same port on localhost, which is a default route to a get request. I thought express was supposed to be able to handle multiple http requests? Here is my middleware code in app.js:
const PORT = 9001;
const express = require("express");
const bodyParser = require("body-parser");
const app = express();
const routes = require('./routes/routing');
app.use((req, res, next) => {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "*");
res.header("Access-Control-Allow-Methods", "GET, HEAD, OPTIONS, POST, PUT, PATCH, DELETE");
next();
});
app.use(bodyParser.json({limit: '20mb', extended: true}))
app.use(bodyParser.urlencoded({limit: '20mb', extended: true}))
routes.appRoutes(app);
app.get('/', function (req, res) {
const example = ;
for (i = 0; i < 1000; i++) {
for (j = 0; j < 1000; j++) {
example.push("test2");
}
example.push("test");
}
res.send(example);
});
app.all('*', function(req, res, next){
res.send('Page not found.');
});
app.listen(PORT, () => {
console.log("App is listening under the port: " + PORT);
});
and here is my routing.js:
const path = require("path");
const multer = require('multer');
const { document } = require('./../controllers');
const diskStorage = multer.diskStorage({
destination: function (req, file, callback) {
callback(null, path.resolve("./server/uploads"))
},
filename: function (req, file, callback) {
callback(null, file.originalname + '-' + Date.now() + ".csv")
}
});
const uploadConfig = multer({
storage: diskStorage,
});
const appRoutes = (app) => {
app.post('/upload', uploadConfig.any(), document.upload);
app.post('/process', document.process);
app.get('/getFiles', document.getFiles);
app.get('/getBatches/:fileId', document.getBatches);
};
module.exports = {
appRoutes
}
javascript node.js express
asked Nov 23 '18 at 16:07
David LinDavid Lin
224
add a comment |
I have an angular app in node that uses express to route various different http requests. I first ran into this problem when multiple users tried to upload files using the app at the same time. I first thought this was a problem with global scoped variables that reset the data of overlapping async/await requests.
However, I was able to replicate this problem ("Failed to load resource: the server responded with a status of 400") with a curl to the same port on localhost, which is a default route to a get request. I thought express was supposed to be able to handle multiple http requests? Here is my middleware code in app.js:
const PORT = 9001;
const express = require("express");
const bodyParser = require("body-parser");
const app = express();
const routes = require('./routes/routing');
app.use((req, res, next) => {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "*");
res.header("Access-Control-Allow-Methods", "GET, HEAD, OPTIONS, POST, PUT, PATCH, DELETE");
next();
});
app.use(bodyParser.json({limit: '20mb', extended: true}))
app.use(bodyParser.urlencoded({limit: '20mb', extended: true}))
routes.appRoutes(app);
app.get('/', function (req, res) {
const example = ;
for (i = 0; i < 1000; i++) {
for (j = 0; j < 1000; j++) {
example.push("test2");
}
example.push("test");
}
res.send(example);
});
app.all('*', function(req, res, next){
res.send('Page not found.');
});
app.listen(PORT, () => {
console.log("App is listening under the port: " + PORT);
});
and here is my routing.js:
const path = require("path");
const multer = require('multer');
const { document } = require('./../controllers');
const diskStorage = multer.diskStorage({
destination: function (req, file, callback) {
callback(null, path.resolve("./server/uploads"))
},
filename: function (req, file, callback) {
callback(null, file.originalname + '-' + Date.now() + ".csv")
}
});
const uploadConfig = multer({
storage: diskStorage,
});
const appRoutes = (app) => {
app.post('/upload', uploadConfig.any(), document.upload);
app.post('/process', document.process);
app.get('/getFiles', document.getFiles);
app.get('/getBatches/:fileId', document.getBatches);
};
module.exports = {
appRoutes
}
javascript node.js express
asked Nov 23 '18 at 16:07
David LinDavid Lin
224
add a comment |
I have an angular app in node that uses express to route various different http requests. I first ran into this problem when multiple users tried to upload files using the app at the same time. I first thought this was a problem with global scoped variables that reset the data of overlapping async/await requests.
However, I was able to replicate this problem ("Failed to load resource: the server responded with a status of 400") with a curl to the same port on localhost, which is a default route to a get request. I thought express was supposed to be able to handle multiple http requests? Here is my middleware code in app.js:
const PORT = 9001;
const express = require("express");
const bodyParser = require("body-parser");
const app = express();
const routes = require('./routes/routing');
app.use((req, res, next) => {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "*");
res.header("Access-Control-Allow-Methods", "GET, HEAD, OPTIONS, POST, PUT, PATCH, DELETE");
next();
});
app.use(bodyParser.json({limit: '20mb', extended: true}))
app.use(bodyParser.urlencoded({limit: '20mb', extended: true}))
routes.appRoutes(app);
app.get('/', function (req, res) {
const example = ;
for (i = 0; i < 1000; i++) {
for (j = 0; j < 1000; j++) {
example.push("test2");
}
example.push("test");
}
res.send(example);
});
app.all('*', function(req, res, next){
res.send('Page not found.');
});
app.listen(PORT, () => {
console.log("App is listening under the port: " + PORT);
});
and here is my routing.js:
const path = require("path");
const multer = require('multer');
const { document } = require('./../controllers');
const diskStorage = multer.diskStorage({
destination: function (req, file, callback) {
callback(null, path.resolve("./server/uploads"))
},
filename: function (req, file, callback) {
callback(null, file.originalname + '-' + Date.now() + ".csv")
}
});
const uploadConfig = multer({
storage: diskStorage,
});
const appRoutes = (app) => {
app.post('/upload', uploadConfig.any(), document.upload);
app.post('/process', document.process);
app.get('/getFiles', document.getFiles);
app.get('/getBatches/:fileId', document.getBatches);
};
module.exports = {
appRoutes
}
javascript node.js express
asked Nov 23 '18 at 16:07
David LinDavid Lin
224
I have an angular app in node that uses express to route various different http requests. I first ran into this problem when multiple users tried to upload files using the app at the same time. I first thought this was a problem with global scoped variables that reset the data of overlapping async/await requests.
However, I was able to replicate this problem ("Failed to load resource: the server responded with a status of 400") with a curl to the same port on localhost, which is a default route to a get request. I thought express was supposed to be able to handle multiple http requests? Here is my middleware code in app.js:
const PORT = 9001;
const express = require("express");
const bodyParser = require("body-parser");
const app = express();
const routes = require('./routes/routing');
app.use((req, res, next) => {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "*");
res.header("Access-Control-Allow-Methods", "GET, HEAD, OPTIONS, POST, PUT, PATCH, DELETE");
next();
});
app.use(bodyParser.json({limit: '20mb', extended: true}))
app.use(bodyParser.urlencoded({limit: '20mb', extended: true}))
routes.appRoutes(app);
app.get('/', function (req, res) {
const example = ;
for (i = 0; i < 1000; i++) {
for (j = 0; j < 1000; j++) {
example.push("test2");
}
example.push("test");
}
res.send(example);
});
app.all('*', function(req, res, next){
res.send('Page not found.');
});
app.listen(PORT, () => {
console.log("App is listening under the port: " + PORT);
});
and here is my routing.js:
const path = require("path");
const multer = require('multer');
const { document } = require('./../controllers');
const diskStorage = multer.diskStorage({
destination: function (req, file, callback) {
callback(null, path.resolve("./server/uploads"))
},
filename: function (req, file, callback) {
callback(null, file.originalname + '-' + Date.now() + ".csv")
}
});
const uploadConfig = multer({
storage: diskStorage,
});
const appRoutes = (app) => {
app.post('/upload', uploadConfig.any(), document.upload);
app.post('/process', document.process);
app.get('/getFiles', document.getFiles);
app.get('/getBatches/:fileId', document.getBatches);
};
module.exports = {
appRoutes
}
javascript node.js express
javascript node.js express
asked Nov 23 '18 at 16:07
David LinDavid Lin
224
asked Nov 23 '18 at 16:07
David LinDavid Lin
224
asked Nov 23 '18 at 16:07
David LinDavid Lin
224
asked Nov 23 '18 at 16:07
David LinDavid Lin
224
asked Nov 23 '18 at 16:07
David LinDavid Lin
224
224
add a comment |
add a comment |
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