admin管理员组文章数量:1326277
I am trying to make a post request from postman but I'm receiving a 404 error: SyntaxError: Unexpected token n in JSON at position 4<br> at JSON.parse
.
I have added the Content-Type: application/json
header and defined the json body in the raw tab.
This is the url: http://localhost:8000/api/signup.
I can't make this post request nor can I access the application in the browser as I receive cannot GET /api/signup
.
How can I fix this?
controllers/user.js
const User = require('../models/user')
const { errorHandler } = require("../helpers/dbErrorHandler")
exports.signup = (req, res) => {
console.log("req.body", req.body)
// signs up new user
const user = new User(req.body)
user.save((err, user) => {
if(err) {
return res.status(400).json({
err: errorHandler(err)
})
}
res.json({
user
})
})
}
app.js
const express = require('express')
const mongoose = require('mongoose')
const morgan = require('morgan')
const bodyParser = require('body-parser')
const cookieParser = require('cookie-parser')
require('dotenv').config()
// import routes
const userRoutes = require('./routes/user')
// app
const app = express()
// connect db - first arg is url (specified in .env)
mongoose.connect(process.env.DATABASE, {
useNewUrlParser: true,
useCreateIndex: true
}).then(() => console.log('DB connected'))
// middlewares
app.use(morgan('dev'))
app.use(bodyParser.json())
// used to save users credentials
app.use(cookieParser())
// routes middleware
app.use('/api', userRoutes)
const port = process.env.PORT || 8000
app.listen(port, () => {
console.log(`Server is running on port ${port}`)
})
models/user.js
const mongoose = require('mongoose')
const crypto = require('crypto')
const uuidv1 = require('uuid/v1')
const userSchema = new mongoose.Schema ({
...
}, {timestamps: true})
userSchema.methods = {
encryptPassword: function(password) {
if (!password) return '';
// hashes password
try {
return crypto.createHmac('sha1', this.salt)
.update(password)
.digest('hex')
} catch (err) {
return ''
}
}
}
module.exports = mongoose.model("User", userSchema)
routes/user.js
const express = require('express')
const router = express.Router()
const { signup} = require('../controllers/user')
router.post('/signup', signup)
module.exports = router
I am trying to make a post request from postman but I'm receiving a 404 error: SyntaxError: Unexpected token n in JSON at position 4<br> at JSON.parse
.
I have added the Content-Type: application/json
header and defined the json body in the raw tab.
This is the url: http://localhost:8000/api/signup.
I can't make this post request nor can I access the application in the browser as I receive cannot GET /api/signup
.
How can I fix this?
controllers/user.js
const User = require('../models/user')
const { errorHandler } = require("../helpers/dbErrorHandler")
exports.signup = (req, res) => {
console.log("req.body", req.body)
// signs up new user
const user = new User(req.body)
user.save((err, user) => {
if(err) {
return res.status(400).json({
err: errorHandler(err)
})
}
res.json({
user
})
})
}
app.js
const express = require('express')
const mongoose = require('mongoose')
const morgan = require('morgan')
const bodyParser = require('body-parser')
const cookieParser = require('cookie-parser')
require('dotenv').config()
// import routes
const userRoutes = require('./routes/user')
// app
const app = express()
// connect db - first arg is url (specified in .env)
mongoose.connect(process.env.DATABASE, {
useNewUrlParser: true,
useCreateIndex: true
}).then(() => console.log('DB connected'))
// middlewares
app.use(morgan('dev'))
app.use(bodyParser.json())
// used to save users credentials
app.use(cookieParser())
// routes middleware
app.use('/api', userRoutes)
const port = process.env.PORT || 8000
app.listen(port, () => {
console.log(`Server is running on port ${port}`)
})
models/user.js
const mongoose = require('mongoose')
const crypto = require('crypto')
const uuidv1 = require('uuid/v1')
const userSchema = new mongoose.Schema ({
...
}, {timestamps: true})
userSchema.methods = {
encryptPassword: function(password) {
if (!password) return '';
// hashes password
try {
return crypto.createHmac('sha1', this.salt)
.update(password)
.digest('hex')
} catch (err) {
return ''
}
}
}
module.exports = mongoose.model("User", userSchema)
routes/user.js
const express = require('express')
const router = express.Router()
const { signup} = require('../controllers/user')
router.post('/signup', signup)
module.exports = router
Share
Improve this question
edited Apr 27, 2020 at 14:09
SK1dev
asked Apr 27, 2020 at 11:11
SK1devSK1dev
1,1393 gold badges25 silver badges61 bronze badges
9
- Can you try POST /api/user/signup – Harshal Yeole Commented Apr 27, 2020 at 11:17
- Can you post content of `./routes/user``file? – Harshal Yeole Commented Apr 27, 2020 at 11:18
- 1 I still receive the same error when I POST /api/user/signup. I've updated my question with the code. @Harshal – SK1dev Commented Apr 27, 2020 at 11:20
- Have you try with close postman and reopen then try on new tab – Jignesh Sanghani Commented Apr 27, 2020 at 11:23
- Can you check if the server is running? – Harshal Yeole Commented Apr 27, 2020 at 11:27
3 Answers
Reset to default 1404 means NOT Found,
May be your URL or Method is wrong
Here is what you can try to diagnose:
- Check if server is running
- Check the port and URL you are accessing.
- Check the postman method POST and URL.
- Check the route, routes file and match it with postman URL
This seems like two different issues, for the POST request, the error seems like there is an invalid string in your JSON payload that your application cannot read and parse.
The second one is mainly due to the route is not found, without looking at your ./routes/user
file, it seems like there are two possibilities:
- You have a nested route of
/user/...
. If that is the case, try accessing your api via/api/user/signup
instead of/api/signup
- You did not create a GET route for you
signup
path. Normally signup is a POST path instead ofGET
.
It would be best if you can provide the source code of ./routes/user.js
for us to properly answer this.
404 error is an HTTP status code that means that the page you were trying to reach on a website couldn't be found on their server. To be clear, the 404 error indicates that while the server itself is reachable, the specific page showing the error is not.
Make sure that your indexing is correct and your local server is running properly.
本文标签: javascriptreceive 404 error from post request postmanStack Overflow
版权声明:本文标题:javascript - receive 404 error from post request: postman - Stack Overflow 内容由网友自发贡献,该文观点仅代表作者本人, 转载请联系作者并注明出处:http://www.betaflare.com/web/1742207298a2433054.html, 本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容,一经查实,本站将立刻删除。
发表评论