Joan: /* Seguim el tutorial */

2022-05-07T08:06:16Z

Seguim el tutorial

Joan a 13:17, 6 maig 2022

2022-05-06T13:17:09Z

Joan: Es crea la pàgina amb «=Referències= https://www.freecodecamp.org/news/build-a-restful-api-using-node-express-and-mongodb/ Codi del github: https://github.com/nishant-666/Rest-Api-Expres...».

2022-05-06T13:16:53Z

Es crea la pàgina amb «=Referències= *https://www.freecodecamp.org/news/build-a-restful-api-using-node-express-and-mongodb/ Codi del github: *https://github.com/nishant-666/Rest-Api-Expres...».

Pàgina nova

=Referències=
*https://www.freecodecamp.org/news/build-a-restful-api-using-node-express-and-mongodb/

Codi del github:
*https://github.com/nishant-666/Rest-Api-Express-MongoDB
=Seguim el tutorial=
Seguim el tutorial sense problemes. La base de dades MongoDB és local (no en el núvol com proposa el tutorial)
<pre>
$ mkdir restapi_mongodb

$ npm init
</pre>
We need to install a few dependencies now.
<pre>
npm i express mongoose nodemon dotenv
</pre>
<pre>
$ joe index.js

const express = require('express');
const mongoose = require('mongoose');

const app = express();

app.use(express.json());

app.listen(3000, () => {
console.log(`Server Started at ${3000}`)
})
En el package.json:
<pre>
"scripts": {
"start": "nodemon index.js"
},
</pre>
<pre>
$ npm start

> restapi_mongodb@1.0.0 start
> nodemon index.js

[nodemon] 2.0.16
[nodemon] to restart at any time, enter `rs`
[nodemon] watching path(s): *.*
[nodemon] watching extensions: js,mjs,json
[nodemon] starting `node index.js`
Server Started at 300
</pre>
Ara bé la part de crear una base de dades MongoDB. Però en aquest tutorial la creen en el núvol, i nosaltres la volem crear en local.

fitxer ''.env'':
<pre>
DATABASE_URL = mongodb://localhost:27017/testDatabase
</pre>
En comptes de postman faig servir curl. Per exemple:
<pre>
$ curl -i -H "Accept: application/json" -X POST -H "Content-Type: application/json" -d '{ "aaa":"bbb" }' localhost:3000/api/post
HTTP/1.1 200 OK
X-Powered-By: Express
Content-Type: text/html; charset=utf-8
Content-Length: 8
ETag: W/"8-OAZPOApCcxyxOI7T5dJOAUUOqFM"
Date: Fri, 06 May 2022 12:43:53 GMT
Connection: keep-alive
Keep-Alive: timeout=5

$ curl -i -H "Accept: application/json" -X GET -H "Content-Type: application/json" localhost:3000/api/getOne/1000
HTTP/1.1 200 OK
X-Powered-By: Express
Content-Type: text/html; charset=utf-8
Content-Length: 4
ETag: W/"4-48u6iIP+dGxuNXg8lAS0vAx+6es"
Date: Fri, 06 May 2022 12:46:03 GMT
Connection: keep-alive
Keep-Alive: timeout=5

1000
</pre>
Un cop la API ja fa la gravació a la bd, anem a provar-ho:
<pre>
$ curl -i -H "Accept: application/json" -X POST -H "Content-Type: application/json" -d '{ "name":"Joan", "age":"52" }' localhost:3000/api/post
HTTP/1.1 200 OK
...
</pre>
Anem a mirar la bd (repàs de MongoDB):
<pre>
$ mongo
> show dbs
...
testDatabase 0.000GB
</pre>
recordar que per defecte estem connectats a la bd ''test'':
<pre>
> db
test

> use testDatabase
switched to db testDatabase

> show collections
datas

> db.datas.find()
{ "_id" : ObjectId("62751a7b26c8db2a5ce59c10"), "name" : "Joan", "age" : 52, "__v" : 0 }
</pre>
<pre>
$ curl -i -H "Accept: application/json" -X GET -H "Content-Type: application/json" localhost:3000/api/getAll
HTTP/1.1 200 OK
...
[{"_id":"62751a7b26c8db2a5ce59c10","name":"Joan","age":52,"__v":0}]
</pre>
<pre>
$ curl -i -H "Accept: application/json" -X GET -H "Content-Type: application/json" localhost:3000/api/getOne/62751a7b26c8db2a5ce59c10
HTTP/1.1 200 OK
...
{"_id":"62751a7b26c8db2a5ce59c10","name":"Joan","age":52,"__v":0}
</pre>
<pre>
$ curl -i -H "Accept: application/json" -X PATCH -H "Content-Type: application/json" -d '{ "name":"Joan", "age":"25" }' localhost:3000/api/update/62751a7b26c8db2a5ce59c10
HTTP/1.1 200 OK
...
{"_id":"62751a7b26c8db2a5ce59c10","name":"Joan","age":25,"__v":0}
</pre>
comprovem que s'ha actualitzat l'edat:
<pre>
$ curl -i -H "Accept: application/json" -X GET -H "Content-Type: application/json" localhost:3000/api/getOne/62751a7b26c8db2a5ce59c10
HTTP/1.1 200 OK
...
{"_id":"62751a7b26c8db2a5ce59c10","name":"Joan","age":25,"__v":0}
</pre>
I ara esborrem:
<pre>
$ curl -i -H "Accept: application/json" -X DELETE -H "Content-Type: application/json" localhost:3000/api/delete/62751a7b26c8db2a5ce59c10
HTTP/1.1 200 OK
...
</pre>
comprovació (només teníem una dada i l'hem eliminat):
<pre>
$ curl -i -H "Accept: application/json" -X GET -H "Content-Type: application/json" localhost:3000/api/getAll
HTTP/1.1 200 OK
...
[]
</pre>
El script ''routes.js'' queda de la següent manera:
<pre>
const express = require('express');
const router = express.Router()
const Model = require('../models/model');

//Post Method
router.post('/post', async (req, res) => {
const data = new Model({
name: req.body.name,
age: req.body.age
})

try {
const dataToSave = await data.save();
res.status(200).json(dataToSave)
}
catch (error) {
res.status(400).json({message: error.message})
}
})

//Get all Method
router.get('/getAll', async (req, res) => {
try{
const data = await Model.find();
res.json(data)
}
catch(error){
res.status(500).json({message: error.message})
}
})

//Get by ID Method
router.get('/getOne/:id', async (req, res) => {
try{
const data = await Model.findById(req.params.id);
res.json(data)
}
catch(error){
res.status(500).json({message: error.message})
}
})

//Update by ID Method
router.patch('/update/:id', async (req, res) => {
try {
const id = req.params.id;
const updatedData = req.body;
const options = { new: true };

const result = await Model.findByIdAndUpdate(
id, updatedData, options
)

res.send(result)
}
catch (error) {
res.status(400).json({ message: error.message })
}
})

//Delete by ID Method
router.delete('/delete/:id', async (req, res) => {
try {
const id = req.params.id;
const data = await Model.findByIdAndDelete(id)
res.send(`Document with ${data.name} has been deleted..`)
}
catch (error) {
res.status(400).json({ message: error.message })
}
})

module.exports = router;
</pre>

{{Autor}}, maig 2022

← Versió més antiga		Revisió del 13:17, 6 maig 2022
Línia 1:		Línia 1:
		+	__TOC__
	=Referències=		=Referències=
	*https://www.freecodecamp.org/news/build-a-restful-api-using-node-express-and-mongodb/		*https://www.freecodecamp.org/news/build-a-restful-api-using-node-express-and-mongodb/

@@ Línia 142: / Línia 142: @@
 ...
 []
 </pre>
 El script ''routes.js'' queda de la següent manera:

Rest-API-Express-MongoDB - Historial de revisió

Joan: /* Seguim el tutorial */

Joan a 13:17, 6 maig 2022

Joan: Es crea la pàgina amb «=Referències= *https://www.freecodecamp.org/news/build-a-restful-api-using-node-express-and-mongodb/ Codi del github: *https://github.com/nishant-666/Rest-Api-Expres...».

Joan: Es crea la pàgina amb «=Referències= https://www.freecodecamp.org/news/build-a-restful-api-using-node-express-and-mongodb/ Codi del github: https://github.com/nishant-666/Rest-Api-Expres...».