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index.js
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index.js
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// import .env, express, morgan, cors, mongoose
require('dotenv').config();
const express = require('express');
const morgan = require('morgan');
const cors = require('cors');
const Person = require('./models/person');
// set instance of express
const app = express();
// prints every request
const requestLogger = (request, response, next) => {
console.log('Method:', request.method);
console.log('Path: ', request.path);
console.log('Body: ', request.body);
console.log('---');
next();
};
// activate static
app.use(express.static('build'));
// activate json-parser
app.use(express.json());
// activate morgan
app.use(morgan(':method :url :status :res[content-length] - :response-time ms :post'));
// only show 'post' token for POST requests
morgan.token('post', (request) => Object.keys(request.body).length > 0 ? JSON.stringify(request.body) : ' ');
// activate cors
app.use(cors());
// activate requestlogger
app.use(requestLogger);
// define root route
app.get('/', (request, response) => {
response.send('<h1>Phonebook</h1>');
});
// get all persons
app.get('/api/persons', (request, response) => {
Person.find({}).then(persons => {
response.json(persons);
});
});
// get single person
app.get('/api/persons/:id', (request, response, next) => {
Person.findById(request.params.id)
.then(person => {
if (person) {
response.json(person);
} else {
response.status(404).send('That person is not in the phonebook.').end();
}
})
.catch(error => next(error));
});
// define info route
app.get('/info', (request, response) => {
Person.find({}).then(persons => {
const responseTime = new Date();
const personCount = persons.length;
response.write(`<p>The phonebook has info for ${personCount} people.</p>`);
response.write(`<p>${responseTime}</p>`);
response.end();
});
});
// add person
app.post('/api/persons/', (request, response, next) => {
const body = request.body;
const person = new Person({
name: body.name,
number: body.number,
});
person
.save()
.then(savedPerson => savedPerson.toJSON())
.then(savedAndFormattedPerson => {
response.json(savedAndFormattedPerson);
})
.catch(error => next(error));
});
// delete person
app.delete('/api/persons/:id', (request, response, next) => {
Person
.findByIdAndRemove(request.params.id)
.then(() => {
response.status(204).end();
})
.catch(error => next(error));
});
// update person
app.put('/api/persons/:id', (request, response, next) => {
const body = request.body;
const person = {
name: body.name,
number: body.number
};
// turn on update validators
const opts = { new: true, runValidators: true };
Person
.findByIdAndUpdate(request.params.id, person, opts)
.then(updatedPerson => {
response.json(updatedPerson);
})
.catch(error => next(error));
});
// handle requests with unknown endpoint
const unknownEndpoint = (request, response) => {
response.status(404).send({ error: 'unknown endpoint' });
};
app.use(unknownEndpoint);
// error handling
const errorHandler = (error, request, response, next) => {
console.log(error.name);
if (error.name === 'CastError') {
return response.status(400).send({ error: 'malformatted id' });
} else if (error.name === 'ValidationError') {
return response.status(400).json({ error: error.message });
}
next(error);
};
// keep here, has to be the last loaded middleware
app.use(errorHandler);
// listen to HTTP requests
const PORT = process.env.PORT;
app.listen(PORT, () => {
console.log(`Server running on port ${PORT}`);
});