Good afternoon,
I have a json returning data from a MySQL DB and one of the attributes is a BLOB. Here is the return to better understand what I would like to know.
[
{
"id": 1,
"name": "Onix",
"description": "Completo",
"price": 40000,
"year": 2015,
"color": "Prata",
"brand": "Chevrolet",
"model": "Hatch",
"version": "1.8",
"fuel": "Flex",
"image": {
"type": "Buffer",
"data": [
50,
48,
49,
54,
45,
112,
101,
114,
115,
111,
110,
97,
108,
105,
122,
101,
45,
115,
101,
117,
45,
99,
104,
101,
118,
114,
111,
108,
101,
116,
45,
111,
110,
105,
120,
45,
54,
52,
56,
120,
50,
54,
57,
46,
106,
112,
103
]
},
"createdAt": "2016-06-28T13:14:33.000Z",
"updatedAt": "2016-06-28T13:14:33.000Z",
"CategoryId": 2,
"UserId": 1
}
]
Now with the return I would like to transform the image.data into the image that I saved in the bank.
The api that returns json has been implemented in nodejs.
Server side
module.exports = app => {
const Vehicles = app.db.models.Vehicles;
app.route("/vehicles")
.all(app.auth.authenticate())
/**
* @api {get} /vehicles List the user's vehicles
* @apiGroup vehicles
* @apiHeader {String} Authorization Token of authenticated vehicle
* @apiHeaderExample {json} Header
* {"Authorization": "JWT xyz.abc.123.hgf"}
* @apiSuccess {Object[]} vehicles Vehicle's list
* @apiSuccess {Number} id Vehicle id
* @apiSuccess {String} name Vehicle name
* @apiSuccess {String} description Vehicle description
* @apiSuccess {Number} price Vehicle price
* @apiSuccess {Number} year Vehicle year
* @apiSuccess {String} color Vehicle color
* @apiSuccess {String} brand Vehicle brand
* @apiSuccess {String} model Vehicle model
* @apiSuccess {String} version Vehicle version
* @apiSuccess {String} fuel Vehicle fuel
* @apiSuccess {String} image Vehicle image
* @apiSuccess {Date} updated_at Update's date
* @apiSuccess {Date} created_at Register's date
* @apiSuccess {Number} UserId User id
* @apiSuccess {Number} CategoryId Category id
* @apiSuccessExample {json} Success
* HTTP/1.1 200 OK
* [{
* "id": 1,
* "name": "Amarok",
* "description": "Ar condicionado, Ar quente, Direção Hidráulica",
* "price": 59000,
* "year": 2012,
* "color": "Prata",
* "brand": "Volkswagen",
* "model": "Turbo",
* "version": "2.0 4X4 CS 16V Intercooler",
* "fuel": "Diesel",
* "image": "QaWEssdrew1215AXccV515ZZaaa515MNhhggaaanncd545d151AAAa515a1a5a15",
* "updated_at": "2016-02-10T15:46:51.778Z",
* "created_at": "2016-02-10T15:46:51.778Z",
* "UserId": 1,
* "CategoryId": 1
* }]
* @apiErrorExample {json} List error
* HTTP/1.1 412 Precondition Failed
*/
.get((req, res) => {
Vehicles.findAll({
where: { UserId: req.user.id }
})
.then(result => res.json(result))
.catch(error => {
res.status(412).json({msg: error.message});
});
})
/**
* @api {post} /vehicles Register a new vehicle
* @apiGroup vehicles
* @apiHeader {String} Authorization Token of authenticated user
* @apiHeaderExample {json} Header
* {"Authorization": "JWT xyz.abc.123.hgf"}
* @apiParam {String} name Vehicle name
* @apiParamExample {json} Input
* "name": "Amarok",
* "description": "Ar condicionado, Ar quente, Direção Hidráulica",
* "price": 59000,
* "year": 2012,
* "color": "Prata",
* "brand": "Volkswagen",
* "model": "Turbo",
* "version": "2.0 4X4 CS 16V Intercooler",
* "fuel": "Diesel",
* "image": "QaWEssdrew1215AXccV515ZZaaa515MNhhggaaanncd545d151AAAa515a1a5a15",
* @apiSuccess {Number} id Vehicle id
* @apiSuccess {String} name Vehicle name
* @apiSuccess {String} description Vehicle description
* @apiSuccess {Number} price Vehicle price
* @apiSuccess {Number} year Vehicle year
* @apiSuccess {String} color Vehicle color
* @apiSuccess {String} brand Vehicle brand
* @apiSuccess {String} model Vehicle model
* @apiSuccess {String} version Vehicle version
* @apiSuccess {String} fuel Vehicle fuel
* @apiSuccess {String} image Vehicle image
* @apiSuccess {Date} updated_at Update's date
* @apiSuccess {Date} created_at Register's date
* @apiSuccess {Number} UserId User id
* @apiSuccess {Number} CategoryId Category id
* @apiSuccessExample {json} Success
* HTTP/1.1 200 OK
* {
* "id": 1,
* "name": "Amarok",
* "description": "Ar condicionado, Ar quente, Direção Hidráulica",
* "price": 59000,
* "year": 2012,
* "color": "Prata",
* "brand": "Volkswagen",
* "model": "Turbo",
* "version": "2.0 4X4 CS 16V Intercooler",
* "fuel": "Diesel",
* "image": "QaWEssdrew1215AXccV515ZZaaa515MNhhggaaanncd545d151AAAa515a1a5a15",
* "updated_at": "2016-02-10T15:46:51.778Z",
* "created_at": "2016-02-10T15:46:51.778Z",
* "UserId": 1,
* "CategoryId": 1
* }
* @apiErrorExample {json} Register error
* HTTP/1.1 412 Precondition Failed
*/
.post((req, res) => {
req.body.UserId = req.user.id;
Vehicles.create(req.body)
.then(result => res.json(result))
.catch(error => {
res.status(412).json({msg: error.message});
});
});
app.route("/vehicles/:id")
.all(app.auth.authenticate())
/**
* @api {get} /vehicles/:id Get a vehicle
* @apiGroup vehicles
* @apiHeader {String} Authorization Token of authenticated user
* @apiHeaderExample {json} Header
* {"Authorization": "JWT xyz.abc.123.hgf"}
* @apiParam {id} id Vehicle id
* @apiSuccess {String} name Vehicle name
* @apiSuccess {String} description Vehicle description
* @apiSuccess {Number} price Vehicle price
* @apiSuccess {Number} year Vehicle year
* @apiSuccess {String} color Vehicle color
* @apiSuccess {String} brand Vehicle brand
* @apiSuccess {String} model Vehicle model
* @apiSuccess {String} version Vehicle version
* @apiSuccess {String} fuel Vehicle fuel
* @apiSuccess {String} image Vehicle image
* @apiSuccess {Date} updated_at Update's date
* @apiSuccess {Date} created_at Register's date
* @apiSuccess {Number} UserId User id
* @apiSuccess {Number} CategoryId Category id
* @apiSuccessExample {json} Success
* HTTP/1.1 200 OK
* {
* "id": 1,
* "name": "Amarok",
* "description": "Ar condicionado, Ar quente, Direção Hidráulica",
* "price": 59000,
* "year": 2012,
* "color": "Prata",
* "brand": "Volkswagen",
* "model": "Turbo",
* "version": "2.0 4X4 CS 16V Intercooler",
* "fuel": "Diesel",
* "image": "QaWEssdrew1215AXccV515ZZaaa515MNhhggaaanncd545d151AAAa515a1a5a15",
* "updated_at": "2016-02-10T15:46:51.778Z",
* "created_at": "2016-02-10T15:46:51.778Z",
* "UserId": 1,
* "CategoryId": 1
* }
* @apiErrorExample {json} Vehicle not found error
* HTTP/1.1 404 Not Found
* @apiErrorExample {json} Find error
* HTTP/1.1 412 Precondition Failed
*/
.get((req, res) => {
Vehicles.findOne({ where: {
id: req.params.id,
UserId: req.user.id
}})
.then(result => {
if (result) {
res.json(result);
} else {
res.sendStatus(404);
}
})
.catch(error => {
res.status(412).json({msg: error.message});
});
})
/**
* @api {put} /vehicles/:id Update a vehicle
* @apiGroup vehicles
* @apiHeader {String} Authorization Token of authenticated user
* @apiHeaderExample {json} Header
* {"Authorization": "JWT xyz.abc.123.hgf"}
* @apiParam {id} id Vehicle id
* @apiParam {String} name Vehicle name
* @apiParam {String} description Vehicle description
* @apiParam {Number} price Vehicle price
* @apiParam {Number} year Vehicle year
* @apiParam {String} color Vehicle color
* @apiParam {String} brand Vehicle brand
* @apiParam {String} model Vehicle model
* @apiParam {String} version Vehicle version
* @apiParam {String} fuel Vehicle fuel
* @apiParam {String} image Vehicle image
* @apiParamExample {json} Input
* {
* "name": "Amarok",
* "description": "Ar condicionado, Ar quente, Direção Hidráulica",
* "price": 59000,
* "year": 2012,
* "color": "Prata",
* "brand": "Volkswagen",
* "model": "Turbo",
* "version": "2.0 4X4 CS 16V Intercooler",
* "fuel": "Diesel",
* "image": "QaWEssdrew1215AXccV515ZZaaa515MNhhggaaanncd545d151AAAa515a1a5a15"
* }
* @apiSuccessExample {json} Success
* HTTP/1.1 204 No Content
* @apiErrorExample {json} Update error
* HTTP/1.1 412 Precondition Failed
*/
.put((req, res) => {
Vehicles.update(req.body, { where: {
id: req.params.id,
UserId: req.user.id
}})
.then(result => res.sendStatus(204))
.catch(error => {
res.status(412).json({msg: error.message});
});
})
/**
* @api {delete} /vehicles/:id Remove a vehicle
* @apiGroup vehicles
* @apiHeader {String} Authorization Token of authenticated user
* @apiHeaderExample {json} Header
* {"Authorization": "JWT xyz.abc.123.hgf"}
* @apiParam {id} id Vehicle id
* @apiSuccessExample {json} Success
* HTTP/1.1 204 No Content
* @apiErrorExample {json} Delete error
* HTTP/1.1 412 Precondition Failed
*/
.delete((req, res) => {
Vehicles.destroy({ where: {
id: req.params.id,
UserId: req.user.id
}})
.then(result => res.sendStatus(204))
.catch(error => {
res.status(412).json({msg: error.message});
});
});
};Client side
import FindMyCar from "../findmycar.js";
import Template from "../templates/vehicleForm.js";
class VehicleForm extends FindMyCar {
constructor(body) {
super();
this.body = body;
}
render() {
this.body.innerHTML = Template.render();
this.body.querySelector("[data-name]").focus();
this.addEventListener();
}
addEventListener() {
this.formSubmit();
}
formSubmit() {
const form = this.body.querySelector("form");
form.addEventListener("submit", (e) => {
e.preventDefault();
const name = e.target.querySelector("[data-name]");
const description = e.target.querySelector("[data-description]");
const price = e.target.querySelector("[data-price]");
const year = e.target.querySelector("[data-year]");
const color = e.target.querySelector("[data-color]");
const brand = e.target.querySelector("[data-brand]");
const model = e.target.querySelector("[data-model]");
const version = e.target.querySelector("[data-version]");
const fuel = e.target.querySelector("[data-fuel]");
const image = e.target.querySelector("[data-image]");
const category = e.target.querySelector("[data-category]");
const opts = {
method: "POST",
url: '${this.URL}/vehicles',
json: true,
headers: {
authorization: localStorage.getItem("token")
},
body: {
name: name.value,
description: description.value,
price: price.value,
year: year.value,
color: color.value,
brand: brand.value,
model: model.value,
version: version.value,
fuel: fuel.value,
image: image.value,
CategoryId: category.value
}
};
this.request(opts, (err, resp, data) => {
if (err || resp.status === 412) {
this.emit("error");
} else {
this.emit("submit");
}
});
});
}
}
module.exports = VehicleForm;[] s