i have very strange problem i already did some forms in same way and everythin working fine.. I will try to give u some code:
backend router js:
const express = require('express');
const { check } = require('express-validator');
const chatControllers = require('../controllers/chat-controllers');
const checkAuth = require('../middleware/check-auth');
const router = express.Router();
router.get('/', chatControllers.getChat);
router.use(checkAuth);
router.post(
'/',
[
check('message')
.not()
.isEmpty()
],
chatControllers.createChat
);
module.exports = router;
backend controller js:
const createChat = async (req, res, next) => {
const errors = validationResult(req);
if (!errors.isEmpty()) {
return next(
new HttpError('Invalid, please check your data.', 422)
);
}
const { message } = req.body;
const createdChat = new Chat({
message,
creator: req.userData.userId
});
let user;
try {
user = await User.findById(req.userData.userId);
} catch (err) {
const error = new HttpError(
'Creating message failed, please try again.',
500
);
return next(error);
}
if (!user) {
const error = new HttpError('Could not find user for provided id.', 404);
return next(error);
}
try {
const sess = await mongoose.startSession();
sess.startTransaction();
await createdChat.save({ session: sess });
} catch (err) {
const error = new HttpError(
'Creating message failed, please try again.',
500
);
return next(error);
}
res.status(201).json({ chat: createdChat });
};
and frontend form:
const Chat = () => {
const auth = useContext(AuthContext);
const { isLoading, error, sendRequest, clearError } = useHttpClient();
const [formState, inputHandler] = useForm(
{
message: {
value: '',
isValid: false
}
},
false
);
const chatSubmitHandler = async event => {
event.preventDefault();
try {
const formData = new FormData();
formData.append('message', formState.inputs.message.value);
await sendRequest('http://localhost:5000/api/chat', 'POST', formData, {
Authorization: 'Bearer ' + auth.token
});
} catch (err) {}
};
return (
<React.Fragment>
<Helmet>
<title></title>
</Helmet>
<ErrorModal error={error} onClear={clearError} />
<div className="container">
<h1>CHAT</h1>
<form className="chat-form" onSubmit={chatSubmitHandler}>
<Input
id="message"
element="input"
type="text"
label="Message"
validators={[VALIDATOR_REQUIRE()]}
errorText="Please enter message."
onInput={inputHandler}
/>
<Button type="submit" disabled={!formState.isValid}>
SEND
</Button>
</form>
<div className="chat-body overflow-auto">
message body
</div>
</div>
</React.Fragment>
);
};
export default Chat;
In app js i already required routes for chat, and also i set headers and body parser but its very strange on others page everything working fine but here i cant retrive req.body...
@ i cant even process to form success error i get: Invalid, please check your data. I think its problem with this input when i console.log req i see theres req.body empty...
You need some kind of request payload parser middleware in your express server application. The parser actually parses the body and creates a property called body
on the request
object. Usually for APIs which take JSON as request body, we need to use bodyparser
middleware like this:
import bodyParser from 'body-parser';
// And then
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
But if you want to use multipart form data, then you can use formidable
as a middleware.
This is like very very weird here i will post my app.js:
const fs = require('fs');
const path = require('path');
const express = require('express');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const companiesRoutes = require('./routes/companies-routes');
const usersRoutes = require('./routes/users-routes');
const adsRoutes = require('./routes/ads-routes');
const chatRoutes = require('./routes/chat-routes');
const HttpError = require('./models/http-error');
const { check } = require('express-validator');
const app = express();
const server = require("http").createServer(app);
const io = require("socket.io")(server, {
cors: {
origin: "http://localhost:3000",
methods: ["GET", "POST"],
credentials: true
}
});
app.use(bodyParser.json());
app.use('/uploads/images', express.static(path.join('uploads', 'images')));
app.use('/uploads/videos', express.static(path.join('uploads', 'videos')));
app.use((req, res, next) => {
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader(
'Access-Control-Allow-Headers',
'Origin, X-Requested-With, Content-Type, Accept, Authorization'
);
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, PATCH, DELETE');
next();
});
app.use('/api/companies', companiesRoutes);
app.use('/api/users', usersRoutes);
app.use('/api/ads', adsRoutes);
app.use('/api/chat', chatRoutes);
app.use((req, res, next) => {
const error = new HttpError('Could not find this route.', 404);
throw error;
});
app.use((error, req, res, next) => {
if (req.file) {
fs.unlink(req.file.path, err => {
console.log(err);
});
}
if (res.headerSent) {
return next(error);
}
res.status(error.code || 500);
res.json({ message: error.message || 'An unknown error occurred!' });
});
mongoose
.connect('mongodburllink', { useNewUrlParser: true })
.then(() => {
server.listen(5000);
})
.catch(err => {
console.log(err);
});
i have and others forms for create and update and everything work fine, but in my last chat i cant retrive req.body.. And i use express-validator for getting req.body... It looks like im missing something here i post in first post full code of other files so if somebody can help i will be thanfull..
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