diff --git a/answers.md b/answers.md
index b7025b97..1ea9f83c 100644
--- a/answers.md
+++ b/answers.md
@@ -1,41 +1,53 @@
 # Answers
 
-Lastname:
-Firstname:
+Lastname: Nguyen
+Firstname: Mickael
 
 ## 2.2
-command:
+command: docker run app
 
 ## 2.3
-question:
-command:
+question: The call fails because ports are not opened
+
+command:  docker -i --expose:portNumber //with portNumber = port we open
 
 ## 2.5
-question:
-command:
+question: The reason is that the "docker push" uses the tag to identify the repository where it is supposed to push the image
+
+commands: docker login //giving my logs
+
+docker tag appp myNameAccount/devops_lab //with myNameAccount our docker hub ID AND devops_lab the docker hub repository name
+
+docker push myNameAccount/devops_lab
 
 ## 2.6
-command:
+command:docker system prune -a //delete all images created from the start of the lab on the computer
+
+question:	
+Using --net=host permits the container to be able to reach localhost on the computer (the conainer having its own network by default)
 
-question:
-command:
+command:  docker run myNameAccount/devops_lab
 
-command:
+command:  docker start -d --net=host dreamy_pare //name found in the column "NAMES" and associated to the container previously created
 
 ## 2.7
-question:
-question:
-command:
+question: just use the command "docker ps -a" to display all containers and check the column "STATUS"
 
-command:
+question: the name of the container is dreamy_pare
+
+command: docker ps -a
+
+command: docker start -d --name newName myNameAccount/devops_lab //with newName the name corresponding to its function
 
 ## 2.8
-question:
-output:
+question: Going into interactive mode : docker run -it myNameAccount/devops_lab /bin/bash , then by using the command given in the lab -> cat /etc/*release, we have the following output (and we can see that the OS from the container is Debian) :
+
+output:	PRETTY_NAME="Debian GNU/Linux 9 (stretch)" NAME="Debian GNU/Linux" VERSION_ID="9" VERSION="9 (stretch)" ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/"
 
 ## 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..ff350705
--- /dev/null
+++ b/index.js
@@ -0,0 +1,1024 @@
+const express = require('express');
+const mysql = require('mysql');
+const bodyParser = require('body-parser');
+const app = express();
+
+app.use(bodyParser.urlencoded({ extended: true }));
+
+
+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("error",403);
+			}
+		});
+	} else {
+		res.send("error",403);
+	}
+});
+
+var db = mysql.createConnection({     
+	host: "localhost",    
+	user: "root",     
+	password: "",     
+	database: "project",    
+	port: "3306" }); 
+
+
+
+//ANIMALS//
+app.get('/animals', function(req, res) {
+	var query = "SELECT * FROM animals";
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+
+	//FILTER : SELECTION
+	var conditions = ["id","name","breed","food_per_day","birthday","entry_date","id_cage"]; 
+    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]] + "'";        
+            }    
+    }
+
+    //FILTER : SORTING
+	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);
+	}
+
+	//FILTER : FILTERING
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//FILTER : PAGINATION
+	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.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.get('/animals/:id', function(req, res) {
+	var id = req.params.id;
+	var query = "SELECT * FROM animals WHERE id=" + id;
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}
+
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+		res.send(JSON.stringify(result));
+	});
+});
+
+
+app.put('/animals/:id', function(req, res) {
+	var id = req.params.id;
+	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 = "UPDATE animals SET id="+id;
+	
+	if("name" in req.body){
+		query += ",name = '"+name +"' ";	
+	}
+
+	if("breed" in req.body){
+		query += ",breed = '"+breed +"' ";
+	}
+
+	if("food_per_day" in req.body){
+		query += ",food_per_day = "+food_per_day;	
+	}
+
+	if("birthday" in req.body){
+		query += ",birthday = '"+birthday+ "' ";	
+	}
+
+	if("entry_date" in req.body){
+		query += ",entry_date = '"+entry_date+"' ";	
+	}
+
+	if("id_cage" in req.body){
+		query += ",id_cage = "+id_cage;		
+	}
+
+	query += " 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"));
+	});
+});
+
+
+
+
+
+//CAGES//
+app.get('/cages', function(req, res) {
+	var query = "SELECT * FROM cages";
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+
+	//FILTER : SELECTION
+	var conditions = ["id","name","description","area"]; 
+    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]] + "'";        
+            }    
+    }
+
+    //FILTER : SORTING
+	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);
+	}
+
+	//FILTER : FILTERING
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//FILTER : PAGINATION
+	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.post('/cages', function(req, res) {
+	var id = req.body.id;
+	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.get('/cages/:id', function(req, res) {
+	var id = req.params.id;
+	var query = "SELECT * FROM cages WHERE id=" + id;
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+		res.send(JSON.stringify(result));
+	});
+});
+
+app.put('/cages/:id', function(req, res) {
+	var id = req.params.id;
+	var name = req.body.name;
+	var description = req.body.description;
+	var area = req.body.area;
+	var query = "UPDATE cages SET id="+id;
+
+	if("name" in req.body){
+		query += ",name = '"+name +"' ";	
+	}
+
+	if("description" in req.body){
+		query += ",description = '"+description +"' ";
+	}
+
+	if("area" in req.body){
+		query += ",area = "+area;	
+	}
+
+	query += " 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"));
+	});
+});
+
+
+
+//FOOD//
+app.get('/food', function(req, res) {
+	var query = "SELECT * FROM food";
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+
+	//FILTER : SELECTION
+	var conditions = ["id","name","id_animal","quantity"]; 
+    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]] + "'";        
+            }    
+    }
+
+    //FILTER : SORTING
+	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);
+	}
+
+	//FILTER : FILTERING
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//FILTER : PAGINATION
+	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.post('/food', function(req, res) {
+	var id = req.body.id;
+	var name = req.body.name;
+	var id_animal = req.body.id_animal;
+	var quantity = req.body.quantity;
+	var query = "INSERT INTO food (name,id_animal,quantity) VALUES ('"+ name + "'," + id_animal + "," + quantity + ")";
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+		res.send(JSON.stringify("Success"));
+	});
+});
+
+	
+app.get('/food/:id', function(req, res) {
+	var id = req.params.id;
+	var query = "SELECT * FROM food WHERE id=" + id;
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+		res.send(JSON.stringify(result));
+	});
+});
+
+
+
+app.put('/food/:id', function(req, res) {
+	var id = req.params.id;
+	var name = req.body.name;
+	var id_animal = req.body.id_animal;
+	var quantity = req.body.quantity;
+	var query = "UPDATE food SET id="+id;
+
+	if("name" in req.body){
+		query += ",name = '"+name +"' ";	
+	}
+
+	if("id_animal" in req.body){
+		query += ",id_animal = "+id_animal;
+	}
+
+	if("quantity" in req.body){
+		query += ",quantity = "+quantity;	
+	}
+
+	query += " WHERE id="+id;
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+		res.send(JSON.stringify("Success"));
+	});
+});
+
+
+
+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"));
+	});
+});
+
+
+
+
+//STAFF//
+app.get('/staff', function(req, res) {
+	var query = "SELECT * FROM staff";
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+
+	//FILTER : SELECTION
+	var conditions = ["id","firstname","lastname","wage"]; 
+    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]] + "'";        
+            }    
+    }
+
+    //FILTER : SORTING
+	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);
+	}
+
+	//FILTER : FILTERING
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//FILTER : PAGINATION
+	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.post('/staff', function(req, res) {
+	var id = req.body.id;
+	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.get('/staff/:id', function(req, res) {
+	var id = req.params.id;
+	var query = "SELECT * FROM staff WHERE id=" + id;
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+		res.send(JSON.stringify(result));
+	});
+});
+
+app.put('/staff/:id', function(req, res) {
+	var id = req.params.id;
+	var firstname = req.body.firstname;
+	var lastname = req.body.lastname;
+	var wage = req.body.wage;
+	var query = "UPDATE staff SET id="+id;
+
+	if("firstname" in req.body){
+		query += ",firstname = '"+firstname +"' ";
+	}
+
+	if("lastname" in req.body){
+		query += ",lastname = '"+lastname+"' ";	
+	}
+
+	if("wage" in req.body){
+		query += ",wage = "+wage;	
+	}
+
+	query += " 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"));
+	});
+});
+
+
+//FOOD-STAtS
+app.get('/food-stats', function(req, res) {
+	var query ="SELECT animals.id, CASE WHEN animals.food_per_day =0 THEN 0 ELSE food.quantity/animals.food_per_day END as days_left FROM food INNER JOIN animals ON food.id_animal=animals.id";
+
+	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!'); 
+});
+
+
+//RELATION ANIMALS/CAGES
+
+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 FROM cages INNER JOIN animals ON cages.id = animals.id_cage WHERE cages.id="+id;
+	
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+
+	//FILTER : SELECTION
+	var conditions = ["id","name","breed","food_per_day","birthday","entry_date"]; 
+    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]] + "'";        
+            }    
+    }
+
+    //FILTER : SORTING
+	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);
+	}
+
+	//FILTER : FILTERING
+	if ("fields" in req.query) {
+		query = query.replace("animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date", req.query["fields"]);
+	}
+
+	//FILTER : PAGINATION
+	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('/cages/:id/animals/:id_animal',function(req, res) {
+	var id =req.params.id;
+	var id_animal = req.params.id_animal;
+	var query = "SELECT animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date FROM cages INNER JOIN animals ON cages.id = animals.id_cage WHERE cages.id=" + id+ " AND animals.id=" + id_animal;     
+	
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+	if ("fields" in req.query) {
+		query = query.replace("*", req.query["fields"]);
+	}	
+
+	db.query(query, function(err, result, fields) {       
+		if (err) throw err; 
+       	res.send(JSON.stringify(result));     
+       }); 
+	}); 
+
+app.get('/animals/:id/cages',function(req,res) {     
+	var id=req.params.id;
+
+	var query= "SELECT cages.id, cages.name, cages.description, cages.area FROM animals INNER JOIN cages ON animals.id_cage = cages.id WHERE animals.id="+id;
+	
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+
+	//FILTER : SELECTION
+	var conditions = ["id","name","breed","description","area"]; 
+    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]] + "'";        
+            }    
+    }
+
+    //FILTER : SORTING
+	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);
+	}
+
+	//FILTER : FILTERING
+	if ("fields" in req.query) {
+		query = query.replace("cages.id, cages.name, cages.description, cages.area", req.query["fields"]);
+	}
+
+	//FILTER : PAGINATION
+	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/cages/:id_cage',function(req, res) {
+	var id =req.params.id;
+	var id_cage = req.params.id_cage;
+	var query = "SELECT cages.id, cages.name, cages.description, cages.area FROM animals INNER JOIN cages ON animals.id_cage = cages.id WHERE animals.id="+id+ " AND cages.id=" + id_cage; 
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+	if ("fields" in req.query) {
+		query = query.replace("cages.id, cages.name, cages.description, cages.area", req.query["fields"]);
+	}
+
+	db.query(query, function(err, result, fields) {       
+		if (err) throw err; 
+       	res.send(JSON.stringify(result));     
+       }); 
+	}); 
+
+
+
+
+
+//RELATION ANIMALS/FOOD
+
+app.get('/animals/:id/food',function(req,res) {     
+	var id=req.params.id;
+
+	var query= "SELECT food.id, food.name, food.quantity FROM animals INNER JOIN food ON animals.id = food.id_animal WHERE animals.id="+id;
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+
+	//FILTER : SELECTION
+	var conditions = ["id","name","quantity"]; 
+    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]] + "'";        
+            }    
+    }
+
+    //FILTER : SORTING
+	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);
+	}
+
+	//FILTER : FILTERING
+	if ("fields" in req.query) {
+		query = query.replace("food.id, food.name, food.quantity", req.query["fields"]);
+	}
+
+	//FILTER : PAGINATION
+	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/food/:id_food',function(req,res) {     
+	var id=req.params.id;
+	var id_food = req.params.id_food;
+	var query= "SELECT food.id, food.name, food.quantity FROM animals INNER JOIN food ON animals.id = food.id_animal WHERE animals.id="+id+ " AND food.id=" + id_food;
+	
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+	if ("fields" in req.query) {
+		query = query.replace("food.id, food.name, food.quantity", req.query["fields"]);
+	}
+
+	db.query(query,function(err,result,fields){
+		if(err) throw err; 
+       	res.send(JSON.stringify(result));     
+       	}); 
+	});
+
+
+
+app.get('/food/: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 FROM food INNER JOIN animals ON food.id_animal = animals.id WHERE food.id="+id;
+
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+
+	//FILTER : SELECTION
+	var conditions = ["id","name","breed","food_per_day","birthday","entry_date"]; 
+    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]] + "'";        
+            }    
+    }
+
+    //FILTER : SORTING
+	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);
+	}
+
+	//FILTER : FILTERING
+	if ("fields" in req.query) {
+		query = query.replace("animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date", req.query["fields"]);
+	}
+
+	//FILTER : PAGINATION
+	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('/food/:id/animals/:id_animal',function(req,res) {     
+	var id=req.params.id;
+	var id_animal=req.params.id_animal;
+	var query= "SELECT animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date FROM food INNER JOIN animals ON food.id_animal = animals.id WHERE food.id="+id+ " AND animals.id="+id_animal;
+	
+	app.get('/query', function(req, res) {    
+		res.send(JSON.stringify(req.query)); 
+	}); 
+
+	if ("fields" in req.query) {
+		query = query.replace("animals.id, animals.name, animals.breed, animals.food_per_day, animals.birthday, animals.entry_date", req.query["fields"]);
+	}
+
+	db.query(query,function(err,result,fields){
+		if(err) throw err; 
+       	res.send(JSON.stringify(result));     
+       	}); 
+	});
+
+
+
+