Showing Error in NodeJS+Express : "Cannot GET /..." - node.js

Question

I am trying to make API for restaurants and developed its controller and model as shown below.
Controller (restaurantData.js)
const restaurantData = require('../Models/restaurantData');
exports.getRestaurantData = (req, res) => {
console.log(req.params.city_id.toString())
restaurantData.find({
city_id: req.params.city_id.toString()
}).then(result => {
res.status(200).json({
message: "Restaurant Data",
restaurants: result
});
}).catch(error => {
res.status(500).json({
message: error
});
});
}
Model (restaurantData.js)
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const restaurantSchema = new Schema({
_id: {
type: Number,
required: true
},
name: {
type: String,
required: true
},
city_name:{
type: String,
required: true
},
city_id: {
type: String,
required: true
},
location_id: {
type: Number,
required: true
},
area: {
type: Number,
required: true
},
locality:{
type: String,
required: true
},
thumb: {
type: String,
required: true
},
cost:{
type: Number,
required: true
},
address:{
type: String,
required: true
},
mealtype:{
type: Number,
required: true
},
name:{
type: String,
required: true
},
cuisine:{
type: Number,
required: true
},
type:{
type: Array,
required: true
},
Cuisine:{
type: Array,
required: true
}
});
module.exports = mongoose.model('restaurantData', restaurantSchema, 'restaurantData');
router.js
const express = require('express');
const restaurantController = require('../Controllers/restaurantData');
const router = express.Router();
router.get('/restaurantData/:cityID',restaurantController.getRestaurantData);
module.exports = router;
app.js
const express = require('express');
const bodyparser = require('body-parser');
const mongoose = require('mongoose');
const apiRouter = require('./Routes/router');
const port = 4005;
const app = express();
app.use(bodyparser.json());
app.use((req, res, next) => {
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('Access-Control-Allow-Methods', 'GET, POST');
res.setHeader('Access-Control-Allow-Headers','Content-Type, Authorization');
next();
});
app.use('/api', apiRouter);
mongoose.connect(
'mongodb://127.0.0.1:27017/sampleRestaurant',
{ useNewUrlParser: true, useUnifiedTopology: true }
).then(success => {
console.log('Connected to MongoDB');
app.listen(port, () => {
console.log(`Server started at port ${port}`);
});
}).catch(error => {
console.log(error);
});
Problem is while running on Postman its showing the error "Cannot GET /api/restaurantData". Please share some ideas.

Answer 1

I found an error in your model where you ask for
req.params.city_id.toString()
which is not correct and necesary to convert to an String.
you should use this instead:
const restaurantData = require('../Models/restaurantData');
exports.getRestaurantData = (req, res) => {
const cityId = req.params.cityID;
console.log(cityId)
restaurantData.find({
city_id: cityId
}).then(result => {
res.status(200).json({
message: "Restaurant Data",
restaurants: result
});
}).catch(error => {
res.status(500).json({
message: error
});
});
}
the reason is because you require the parameter city_id instead of cityID, the one you use in your route:
router.get('/restaurantData/:cityID',restaurantController.getRestaurantData);