diff --git a/answers.md b/answers.md
index b7025b97..77464e38 100644
--- a/answers.md
+++ b/answers.md
@@ -1,18 +1,21 @@
 # Answers
 
-Lastname:
-Firstname:
+Lastname:Lefevre
+Firstname:Emilien
 
 ## 2.2
-command:
+command: sudo docker run testapp
 
 ## 2.3
 question:
-command:
+command: sudo docker -i --expose:PortNumber testapp
 
 ## 2.5
 question:
-command:
+command: 
+sudo docker login
+sudo docker tag testing emilienlefevre/devops_lab
+sudo docker push emilienlefevre/devops_lab
 
 ## 2.6
 command:
@@ -25,7 +28,7 @@ command:
 ## 2.7
 question:
 question:
-command:
+command: sudo docker ps -a
 
 command:
 
@@ -34,8 +37,8 @@ question:
 output:
 
 ## 3.1
-command:
+command: sudo docker-compose up
 
 ## 3.4
-command:
-command:
+command: sudo docker-compose up -d
+command: sudo docker-compose logs
diff --git a/index.js b/index.js
new file mode 100644
index 00000000..552df41d
--- /dev/null
+++ b/index.js
@@ -0,0 +1,1114 @@
+
+const express = require('express');
+const mysql = require('mysql');
+const bodyParser = require('body-parser');
+const app = express();
+
+app.use(bodyParser.urlencoded({ extended: true }));
+
+var db = mysql.createConnection({
+    host: "localhost",
+    user: "root",
+    password: "",
+    database: "zoo",
+    port: "3306"
+});
+
+
+
+//Creation des données dans les differents objets
+
+app.use(function(req, res, next) {
+    if ("key" in req.query) {
+        var key = req.query["key"];
+        var query = "SELECT * FROM users WHERE apikey='" + key + "'";
+        db.query(query, function(err, result, fields) {
+            if (err) throw err;
+            if (result.length > 0) {
+                next();
+            }
+            else {
+                res.send("Access denied",403);
+            }
+        });
+    } else {
+        res.send("Access denied", 403);
+    }
+}); // Pare feu avec erreur 403 si erreur de clée
+app.post('/food', function(req, res) {
+    var id_animal = req.body.id_animal;
+    var name = req.body.name;
+    var quantity = req.body.quantity;
+    var query = "INSERT INTO food (name,quantity,id_animal) VALUES ('"+name+"','"+quantity+"','"+id_animal+"')";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.post('/cages', function(req, res) {
+    var name = req.body.name;
+    var description = req.body.description;
+    var area = req.body.area;
+    var query = "INSERT INTO cages (name,description,area) VALUES ('"+name+"','"+description+"','"+area+"')";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.post('/animals', function(req, res) {
+    var name = req.body.name;
+    var breed = req.body.breed;
+    var food_per_day = req.body.food_per_day;
+    var birthday = req.body.birthday;
+    var entry_date = req.body.entry_date;
+    var id_cage = req.body.id_cage;
+    var query = "INSERT INTO animals (name,breed,food_per_day,birthday,entry_date,id_cage) VALUES ('"+name+"','"+breed+"','"+food_per_day+"','"+birthday+"','"+entry_date+"','"+id_cage+"')";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.post('/staff', function(req, res)   {
+    var firstname = req.body.firstname;
+    var lastname = req.body.lastname;
+    var wage = req.body.wage;
+    var query = "INSERT INTO staff (firstname,lastname,wage) VALUES ('"+firstname+"','"+lastname+"','"+wage+"')";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.post('/users', function(req, res) {
+    var username = req.body.username;
+    var apikey = req.body.apikey;
+    var query = "INSERT INTO users (username, apikey) VALUES ('" + username + "','"+apikey+"')";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.post('/data', function(req, res) {
+    var userId = req.body.user_id;
+    var value = req.body.value;
+    var query = "INSERT INTO data (user_id,value) VALUES ('" + userId + "','"+value+"')";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+
+
+//Lecture des données des differentes routes
+
+app.get('/food', function(req, res) {
+    var query = "SELECT * FROM food";
+    var conditions = ["id_animal", "name","quantity"];
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/food/:id', function(req, res) {
+    var id = req.params.id;
+    var conditions = ["id_animal", "name","quantity"];
+    var query = "SELECT * FROM food WHERE id=" + id;
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/cages', function(req, res) {
+    var query = "SELECT * FROM cages";
+    var conditions = ["description", "name","area"];
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/cages/:id', function(req, res) {
+    var id = req.params.id;
+    var conditions = ["description", "name","area"];
+    var query = "SELECT * FROM cages WHERE id=" + id;
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/animals', function(req, res) {
+    var query = "SELECT * FROM animals";
+    var conditions = ["breed", "name","food_per_day","birthday","entry_date","id_cage"];
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/animals/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "SELECT * FROM animals WHERE id=" + id;
+    var conditions = ["breed", "name","food_per_day","birthday","entry_date","id_cage"];
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/staff', function(req, res) {
+    var query = "SELECT * FROM staff";
+    var conditions = ["firstname", "lastname", "wage"];
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/staff/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "SELECT * FROM staff WHERE id=" + id;
+    var conditions = ["firstname", "lastname", "wage"];
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/users', function(req, res) {
+    var query = "SELECT * FROM users";
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/users/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "SELECT * FROM users WHERE id=" + id;
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/data', function(req, res) {
+    var query = "SELECT * FROM data";
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/data/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "SELECT * FROM data WHERE id=" + id;
+    if ("fields" in req.query) {
+        query = query.replace("*", req.query["fields"]);
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " " + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+
+
+//Upload des données. On change la valeur d'une ou des données de l'objet.
+//Si un ou plusieurs attribut est indéfini, on ne l'ajoute pas dans la requête.
+
+app.put('/food/:id', function(req, res) {
+    var tab=[];
+    var query = "UPDATE food SET ";
+    var id = req.params.id;
+    var name = req.body.name;
+    tab[1]=name;
+    var quantity = req.body.quantity;
+    tab[2]=quantity;
+    var id_animal = req.body.id_animal;
+    tab[3]=id_animal;
+    for (var i=1; i<=3; i++){
+        if (!((tab[i]==undefined)||(tab[i]=='undefined'))){
+            if (i == 1) {
+                query += "name = '" + tab[i] + "',";
+            }else if (i == 2) {
+                query += "quantity = '" + tab[i] + "',";
+            }else if (i == 3) {
+                query += "id_animal = '" + tab[i] + "',";
+            }
+        }
+    }
+    query = query.substr(0,query.length-1);
+    query += "WHERE id = " + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.put('/cages/:id', function(req, res) {
+    var tab=[];
+    var query = "UPDATE cages SET ";
+    var id = req.params.id;
+    var name = req.body.name;
+    tab[1]=name;
+    var description = req.body.description;
+    tab[2]=description;
+    var area = req.body.area;
+    tab[3]=area;
+    for (var i=1; i<=3; i++){
+        if (!((tab[i]==undefined)||(tab[i]=='undefined'))){
+            if (i == 1) {
+                query += "name = '" + tab[i] + "',";
+            }else if (i == 2) {
+                query += "description = '" + tab[i] + "',";
+            }else if (i == 3) {
+                query += "area = '" + tab[i] + "',";
+            }
+        }
+    }
+    query = query.substr(0,query.length-1);
+    query += "WHERE id = " + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.put('/animals/:id', function(req, res) {
+    var tab=[];
+    var query = "UPDATE animals SET ";
+    var id = req.params.id;
+    var name = req.body.name;
+    tab[1]=name;
+    var breed = req.body.breed;
+    tab[2]=breed;
+    var food_per_day = req.body.food_per_day;
+    tab[3]=food_per_day;
+    var birthday = req.body.birthday;
+    tab[4]=birthday;
+    var entry_date = req.body.entry_date;
+    tab[5]=entry_date;
+    var id_cage = req.body.id_cage;
+    tab[6]=id_cage;
+    for (var i=1; i<=6; i++){
+        if (!((tab[i]==undefined)||(tab[i]=='undefined'))){
+            if (i == 1) {
+                query += "name = '" + tab[i] + "',";
+            }else if (i == 2) {
+                query += "breed = '" + tab[i] + "',";
+            }else if (i == 3) {
+                query += "food_per_day = '" + tab[i] + "',";
+            }else if (i == 4) {
+                query += "birthday = '" + tab[i] + "',";
+            }else if (i == 5) {
+                query += "entry_date = '" + tab[i] + "',";
+            }else if (i == 6) {
+                query += "id_cage = '" + tab[i] + "',";
+            }
+        }
+    }
+    query = query.substr(0,query.length-1);
+    query += "WHERE id = " + id;
+    db.query(query, function(err, result, fields){
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.put('/staff/:id', function(req, res) {
+    var tab=[];
+    var query = "UPDATE staff SET ";
+    var id = req.params.id;
+    var firstname = req.body.firstname;
+    tab[1]=firstname;
+    var lastname = req.body.lastname;
+    tab[2]=lastname;
+    var wage = req.body.wage;
+    tab[3]=wage;
+    for (var i=1; i<=3; i++){
+        if (!((tab[i]==undefined)||(tab[i]=='undefined'))){
+            if (i == 1) {
+                query += "firstname = '" + tab[i] + "',";
+            }else if (i == 2) {
+                query += "lastname = '" + tab[i] + "',";
+            }else if (i == 3) {
+                query += "wage = '" + tab[i] + "',";
+            }
+        }
+    }
+    query = query.substr(0,query.length-1);
+    query += "WHERE id = " + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.put('/users/:id', function(req, res) {
+    var id = req.params.id;
+    var username = req.body.username;
+    var apikey = req.body.apikey;
+    var query = "UPDATE users SET username = '" + username + "' ,apikey = '" + apikey + "' WHERE id=" + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.put('/data/:id', function(req, res) {
+    var id = req.params.id;
+    var user_id = req.body.user_id;
+    var value = req.body.apikey;
+    var query = "UPDATE data SET (user_id = '" + user_id + "' ,value = '" + value + "') WHERE id=" + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+
+//Suppression de(s) donnée(s) des objets
+
+app.delete('/food', function(req, res) {
+    var query = "DELETE FROM food";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/food/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "DELETE FROM food WHERE id=" + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/cages', function(req, res) {
+    var query = "DELETE FROM cages";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/cages/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "DELETE FROM cages WHERE id=" + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/animals', function(req, res) {
+    var query = "DELETE FROM animals";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/animals/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "DELETE FROM animals WHERE id=" + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/staff', function(req, res) {
+    var query = "DELETE FROM staff";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/staff/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "DELETE FROM staff WHERE id=" + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/users', function(req, res){
+    var query = "DELETE FROM users";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+app.delete('/users/:id', function(req, res) {
+    var id = req.params.id;
+    var query = "DELETE FROM users WHERE id=" + id;
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify("Success"));
+    });
+});
+
+
+//Temps nourriture restant
+// Une simple division, que l'on renomme à l'aide du AS.
+// Si la valeur est null, on la remplace par 0 car sinon, problème de type
+
+app.get('/food-stats', function(req, res) {
+    var query = "SELECT animals.id, (food.quantity)/(animals.food_per_day) as days_left FROM animals INNER JOIN food ON animals.id = food.id_animal";
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        var t=JSON.stringify(result);
+        t = t.replace("null", 0);
+        res.send(t);
+    });
+});
+
+
+//Relations
+//On lis les données de la relation animal dans cage
+//Pour le filtre field, on remplace l'ensemble des attributs par celui entré dans l'URL à l'aide de la fonction .replace()
+app.get('/cages/:id/animals', function(req, res) {
+    var id = req.params.id;
+    var query = "SELECT animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date, animals.id_cage FROM animals INNER JOIN cages ON cages.id = animals.id_cage WHERE cages.id=" + id;
+    var conditions = ["id", "name", "breed", "food_per_day", "birthday","entry_date","id_cage"];
+    if ("fields" in req.query) {
+        query = query.replace("animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date, animals.id_cage",req.query["fields"]);
+    }
+
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " animals." + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+// Relation cages dans animal
+// Pour le filtre opération, ne pas oublier d'ajouter le nom de la table associé aux attributs que l'on veut afficher
+app.get('/animals/:id/cages', function(req, res) {
+    var id = req.params.id;
+    var conditions = ["description", "name","area"];
+    var query = "SELECT * FROM animals INNER JOIN cages ON animals.id_cage = cages.id WHERE animals.id=" + id;
+    if ("fields" in req.query) {
+        query = query.replace("*", "cages." + req.query["fields"]);
+    } else {
+        query = query.replace("*", "cages.id, cages.name, cages.description, cages.area");
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " cages." + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/cages/:id_cages/animals/:id_animals', function(req, res) {
+    var id_cages = req.params.id_cages;
+    var id_animals = req.params.id_animals;
+    var conditions = ["id","breed", "name","food_per_day","birthday","entry_date","id_cage"];
+    var query = "SELECT * FROM animals INNER JOIN cages ON cages.id = animals.id_cage WHERE cages.id=" + id_cages + " AND animals.id=" + id_animals;
+    if ("fields" in req.query) {
+        query = query.replace("*", "animals." + req.query["fields"]);
+    } else {
+        query = query.replace("*", "animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date, animals.id_cage");
+    }
+    /*for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " animals." + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }*/
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/animals/:id_animals/cages/:id_cage', function(req, res) {
+    var id_animals = req.params.id_animals;
+    var id_cage = req.params.id_cage;
+    var conditions = ["description", "name","area"];
+    var query = "SELECT * FROM animals INNER JOIN cages ON animals.id_cage = cages.id WHERE animals.id=" + id_animals + " AND cages.id=" + id_cage;
+    if ("fields" in req.query) {
+        query = query.replace("*", "cages." + req.query["fields"]);
+    } else {
+        query = query.replace("*", "cages.id, cages.name, cages.description, cages.area");
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " cages." + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+
+// Lire relation food dans animal
+app.get('/animals/:id/food', function(req, res) {
+    var conditions = ["id", "name", "quantity", "id_animal"];    var id = req.params.id;
+    var query = "SELECT * FROM animals INNER JOIN food ON animals.id = food.id_animal WHERE animals.id=" + id;
+    if ("fields" in req.query) {
+        query = query.replace("*", "food." + req.query["fields"]);
+    } else {
+        query = query.replace("*", "food.id, food.quantity, food.name");
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " food." + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+// Lire relation animal dans food
+app.get('/food/:id/animals', function(req, res) {
+    var conditions = ["id", "name", "breed", "food_per_day", "birthday", "entry_date", "id_cage"];
+    var id = req.params.id;
+    var query = "SELECT * FROM food INNER JOIN animals ON food.id_animal = animals.id WHERE food.id=" + id;
+    if ("fields" in req.query) {
+        query = query.replace("*", "animals." + req.query["fields"]);
+    } else {
+        query = query.replace("*", "animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date");
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " animals." + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/animals/:id_animal/food/:id_food', function(req, res) {
+    var id_animal = req.params.id_animal;
+    var id_food = req.params.id_food;
+    var conditions = ["id", "name", "quantity", "id_animal"];    var query = "SELECT * FROM animals INNER JOIN food ON animals.id = food.id_animal WHERE animals.id=" + id_animal + " AND food.id=" + id_food;
+    if ("fields" in req.query) {
+        query = query.replace("*", "food." + req.query["fields"]);
+    } else {
+        query = query.replace("*", "cages.id, cages.name, cages.description, cages.area");
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " food." + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+app.get('/food/:id_food/animals/:id_animal', function(req, res) {
+    var id_animal = req.params.id_animal;
+    var id_food = req.params.id_food;
+    var conditions = ["id", "name", "breed", "food_per_day", "birthday", "entry_date", "id_cage"];
+    var query = "SELECT * FROM food INNER JOIN animals ON food.id_animal = animals.id  WHERE animals.id=" + id_animal + " AND food.id=" + id_food;
+    if ("fields" in req.query) {
+        query = query.replace("*", "animals." + req.query["fields"]);
+    } else {
+        query = query.replace("*", "animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date");
+    }
+    if ("limit" in req.query) {
+        query += " LIMIT " + req.query["limit"];
+        if ("offset" in req.query) {
+            query += " OFFSET " + req.query["offset"];
+        }
+    }
+    for (var index in conditions) {
+        if (conditions[index] in req.query) {
+            if (query.indexOf("WHERE") < 0) {
+                query += " WHERE";
+            } else {
+                query += " AND";
+            }
+            query += " animals." + conditions[index] + "='" +
+                req.query[conditions[index]] + "'";
+        }
+    }
+    if ("sort" in req.query) {
+        var sort = req.query["sort"].split(",");
+        query += " ORDER BY";
+        for (var index in sort) {
+            var direction = sort[index].substr(0, 1);
+            var field = sort[index].substr(1);
+            query += " " + field;
+            if (direction == "-")
+                query += " DESC,";
+            else
+                query += " ASC,";
+        }
+        query = query.slice(0, -1);
+    }
+    db.query(query, function(err, result, fields) {
+        if (err) throw err;
+        res.send(JSON.stringify(result));
+    });
+});
+
+
+
+app.listen(3000, function() {
+    db.connect(function(err) {
+        if (err) throw err;
+        console.log('Connection to database successful!');
+    });
+    console.log('Example app listening on port 3000!');
+});
+