Express & SQL - Atelier Fil Rouge

index.js

let express = require("express");
let app = express();
const port = 3000;
const db = require("./conf");

app.use(express.json());
app.use(
  express.urlencoded({
    extended: true,
  })
);

// GET (light) - Récupération de quelques champs spécifiques (id, names, dates, etc...)
app.get("/light-characters", (req, res) => {
  db.query(
    "SELECT id, firstname, lastname, birthday FROM wizard",
    (err, results) => {
      if (err) {
        res.status(500).send("Can't get specific wizard !", err);
      }
      res.status(200).send(results);
    }
  );
});

// GET - Récupération de l'ensemble des données de ta table
app.get("/characters", (req, res) => {
  let request = "SELECT id, firstname, lastname, birthday, biography, is_muggle FROM wizard";
  db.query(request, (err, results) => {
    if (err) {
      res.status(500).send("Can't get all wizards !", err);
    }
    res.status(200).send(results);
  });
});

// GET - Récupération d'un ensemble de données en fonction de certains filtres :
// Un filtre "contient ..." (ex: nom contenant la chaîne de caractère 'wcs')
app.get("/characters/contains", (req, res) => {
  db.query(
    `SELECT id, firstname, lastname FROM wizard WHERE biography LIKE '%${req.query.contains}%`,
    [req.query.contains], 
    (err, results) => {
    if (err) {
      res.status(500).send("Can't get wizards !", err);
    }
    res.status(200).send(results);
  });
});
// Un filtre "commence par ..." (ex: nom commençant par 'campus')
app.get("/characters/starts", (req, res) => {
  db.query(
    `SELECT id, firstname, lastname FROM wizard WHERE lastname LIKE '%${req.query.starts}%`,
    [req.query.starts], 
    (err, results) => {
    if (err) {
      res.status(500).send("Can't get wizards !", err);
    }
    res.status(200).send(results);
  });
});

// Un filtre "supérieur à ..." (ex: date supérieure à 18/10/2010)
app.get("/characters/older", (req, res) => {
  db.query(
    `SELECT id, firstname, lastname FROM wizard WHERE birthday > '%${req.query.older}%`,
    [req.query.older], 
    (err, results) => {
    if (err) {
      res.status(500).send("Can't get wizards !", err);
    }
    res.status(200).send(results);
  });
});

// GET - Récupération de données ordonnées (ascendant, descendant)
// L'ordre sera passé en tant que paramètre de la route
app.get("/characters/:order", (req, res) => {
  db.query(
    `SELECT id, lastname, firstname FROM wizard ORDER BY lastname, firstname ${req.params.order} `,
    (err, results) => {
      if (err) {
        res.status(500).send("Can't get filtered wizards !", err);
      }
      res.status(200).send(results);
    }
  );
});

// POST - Sauvegarde d'une nouvelle entité
app.post("/characters", (req, res) => {
  db.query(`INSERT INTO wizard SET ?`, [req.body], (err, results) => {
    if (err) {
      res.status(500).send("Can't post a wizard !", err);
    }
    res
      .status(200)
      .send(
        `The wizard ${req.body.firstname} ${req.body.lastname} with id ${results.insertId} was added`
      );
  });
});

// PUT - Modification d'une entité
app.put("/characters/:id", (req, res) => {
  db.query(
    `UPDATE wizard SET ? WHERE id = ?`,
    [req.body, req.params.id],
    (err, results) => {
      if (err) {
        res.status(500).send("Can't post a wizard !", err);
      }
      res
        .status(200)
        .send(
          `The wizard ${req.body.firstname} ${req.body.lastname} was updated`
        );
    }
  );
});

// PUT - Toggle du booléen
app.put("/characters/:id", (req, res) => {
  db.query(
    `UPDATE wizard SET is_muggle = !is_muggle WHERE id = ?`,
    [req.params.id],
    (err, results) => {
      if (err) {
        res.status(500).send("Can't update a wizard !", err);
      }
      res.status(200).send(`The wizard's property 'is_muggle' was toggled`);
    }
  );
});

// DELETE - Suppression d'une entité
app.delete("/characters/:id", (req, res) => {
  db.query(
    `DELETE FROM wizard WHERE id = ?`,
    [req.params.id],
    (err, results) => {
      if (err) {
        res.status(500).send("Can't delete a wizard !", err);
      }
      res
        .status(200)
        .send(
          `The wizard ${req.body.firstname} ${req.body.lastname} was deleted`
        );
    }
  );
});

// DELETE - Suppression de toutes les entités dont le booléen est false
app.delete("/characters/:id", (req, res) => {
  db.query(`DELETE FROM wizard WHERE is_muggle = 0`, (err, results) => {
    if (err) {
      res.status(500).send("Can't delete a wizard !", err);
    }
    res.status(200).send(results.affectedRows + " wizards was deleted.");
  });
});

app.listen(port, (err) => {
  if (err) {
    throw new Error("Something bad happened...");
  }
  console.log(`Server is listening on ${port}`);
});