diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 00000000..5bf9ed40
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,13 @@
+FROM alpine:latest
+
+WORKDIR /app
+
+COPY index.js /app
+
+RUN apk add nodejs-current nodejs-npm
+RUN npm install express
+RUN npm install mysql
+
+EXPOSE 3000
+
+CMD node index.js
\ No newline at end of file
diff --git a/Readme.md b/Readme.md
index 195a2c7e..d3f54ec2 100644
--- a/Readme.md
+++ b/Readme.md
@@ -31,7 +31,7 @@ To get more help about fork, see the [official documentation](https://guides.git
 Clone your newly forked project on your computer
 
 ### 1.3: Faire un commit 
-After the clone, you should have your copy of the project on your computer. Go into cloned folder and add your firstname and lastname to **answers.md** file.
+After the clone, you should have your copy of the project on your computer. Go into cloned folder and add your firstname and lastname to it.
 
 Commit and push your changes. You should see your change on Github graphical interface.
 
diff --git a/answers.md b/answers.md
index b7025b97..01d46594 100644
--- a/answers.md
+++ b/answers.md
@@ -1,41 +1,50 @@
 # Answers
 
-Lastname:
-Firstname:
+Lastname: COMAK	
+Firstname: MUSTAFA
 
 ## 2.2
 command:
+docker run testapp
 
 ## 2.3
-question:
-command:
+question: the port is not opened, the container's ports aren't published. 
+command: docker run -p 3000:3000 app
 
 ## 2.5
-question:
-command:
+question: For Docker the image has to be tagged accordingly for it to be uploaded correctly to the Docker Hub, so we have to name the tag of the image to match the repository
+command: docker login --username=mustufu
+		 docker tag app Mustufu/devops_lab:imagetest
+		 docker push Mustufu/devops_lab:imagetest
 
 ## 2.6
-command:
+command: docker prune -a
 
-question:
-command:
+question: We just deleted all local images on our computer, if we make a new container there would be no images to build from. But Docker can pull an image from our repository. We will give him the name with the command
+command: docker run Mustufu/devops-lab:imagetest
 
-command:
+command: docker run --detach Mustufu/devops-lab:imagetest
 
 ## 2.7
-question:
-question:
-command:
+question: we will run the comman "sudo docker ps -a", we will get all the containers with ID, Names etc. We will then see if the container was started correctly by finding it's ID and check its status. The status is up.
+question: my container's name is evil_curry
+command: docker ps -a
 
-command:
+command: docker run --name devopslab --detach Mustufu/devops-lab:imagetest
+WE COULD ALSO USE : command : docker rename evil_curry devopslab
 
 ## 2.8
-question:
-output:
+question: Linux 
+output: NAME="Alpine Linux"
+		ID=alpine
+		VERSION_ID=3.8.1
+		PRETTY_NAME="Alpine Linux v3.8"
+		HOME_URL="http://alpinelinux.org"
+		BUG_REPORT_URL="http://bugs.alpinelinux.org"
 
 ## 3.1
-command:
+command: docker-compose up
 
 ## 3.4
-command:
-command:
+command: docker-compose up -d
+command: docker-compose logs 
diff --git a/index.js b/index.js
new file mode 100644
index 00000000..3c1a1015
--- /dev/null
+++ b/index.js
@@ -0,0 +1,1069 @@
+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: process.environment.MYSQL_HOST,
+user: process.environment.MYSQL_LOGIN,
+password: process.environment.MYSQL_PASSWORD,
+database: process.environment.MYSQL_DATABASE,
+port: process.environment.MYSQL_PORT
+});
+
+//FIREWALL
+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);
+	}
+});
+
+
+
+//animal
+app.post('/animals', function(req, res) {
+	var name = req.body.name;
+	var breed = req.body.breed;
+	var food = req.body.food_per_day;
+	var birthday = req.body.birthday;
+	var entry = 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+",'"+birthday+"','"+entry+"',"+id_cage+")";
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+		res.send(JSON.stringify("success"));
+	});
+});
+
+app.get('/animals', function(req, res) {
+
+	var query = "SELECT * FROM animals";
+
+	  //SELECTION
+	var conditions = ["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]] + "'";
+		}
+	}
+
+    //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);
+
+	}
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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', function(req, res) {
+
+	var id = req.params.id;
+	var query = "SELECT * FROM animals WHERE id="+ id;
+
+	//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);
+
+	}
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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.put('/animals/:id', function(req, res) {
+
+	var id = req.params.id;
+	var name = req.body.name;
+	var breed = req.body.breed;
+	var food = req.body.food_per_day;
+	var birthday = req.body.birthday;
+	var entry = req.body.entry_date;
+	var id_cage = req.body.id_cage;
+
+	var query = "UPDATE animals SET ";
+
+	if(name != undefined) query += " name = '"+name+"',";
+	if(breed != undefined) query += " breed = '"+breed+"',";
+	if(food != undefined) query += " food_per_day = '"+food+"',";
+	if(birthday != undefined) query += " birthday = '"+birthday+"',";
+	if(entry != undefined) query += " entry_date = '"+entry+"',";
+	if(id_cage != undefined) query += " id_cage = '"+id_cage+"',";
+
+	query = query.slice(0,-1);
+
+	query += " WHERE id = "+id;
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+
+		res.send(JSON.stringify(result));
+	});
+});
+
+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(result));
+	});
+});
+
+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(result));
+	});
+});
+
+
+
+
+
+//cages
+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.get('/cages', function(req, res) {
+
+	var query = "SELECT * FROM cages";
+
+    //SELECTION
+	var conditions = ["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]] + "'";
+		}
+	}
+
+    //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);
+
+	}
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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', function(req, res) {
+
+	var id = req.params.id;
+	var query = "SELECT * FROM cages WHERE id=" + id;
+
+	//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);
+
+	}
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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.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 ";
+
+	if(name != undefined) query += " name = '"+name+"',";
+	if(description != undefined) query += " description = '"+description+"',";
+	if(area != undefined) query += " area = '"+area+"',";
+
+	query = query.slice(0,-1);
+
+	query += " WHERE id = "+id;
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+
+		res.send(JSON.stringify(result));
+	});
+});
+
+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(result));
+	});
+});
+
+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(result));
+	});
+});
+
+
+
+
+
+
+//food
+app.post('/food', function(req, res) {
+	var name = req.body.name;
+	var quantity = req.body.quantity;
+	var id_animal = req.body.id_animal;
+	
+	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.get('/food', function(req, res) {
+
+
+	var query = "SELECT * FROM food";
+
+	  //SELECTION
+	var conditions = ["name", "quantity","id_animal"];
+	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]] + "'";
+		}
+	}
+
+    //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);
+
+	}
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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', function(req, res) {
+
+	var id = req.params.id;
+
+	var query = "SELECT * FROM food WHERE id=" + id;
+
+	//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);
+
+	}
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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.put('/food/:id', function(req, res) {
+	var id = req.params.id;
+	var name = req.body.name;
+	var quantity = req.body.quantity;
+	var id_animal = req.body.id_animal;
+
+	var query = "UPDATE food SET ";
+
+	if(name != undefined) query += " name = '"+name+"',";
+	if(quantity != undefined) query += " quantity = '"+quantity+"',";
+	if(id_animal != undefined) query += " id_animal = '"+id_animal+"',";
+
+	query = query.slice(0,-1);
+
+	query += " WHERE id = "+id;
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+
+		res.send(JSON.stringify(result));
+	});
+});
+
+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(result));
+	});
+});
+
+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(result));
+	});
+});
+
+
+
+
+//staff
+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.get('/staff', function(req, res) {
+
+	var query = "SELECT * FROM staff";
+
+	  //SELECTION
+	var conditions = ["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]] + "'";
+		}
+	}
+
+    //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);
+
+	}
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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('/staff/:id', function(req, res) {
+
+	var id = req.params.id;
+	var query = "SELECT * FROM staff WHERE id=" + id;
+
+	//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);
+
+	}
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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.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 ";
+
+	if(firstname != undefined) query += " firstname = '"+firstname+"',";
+	if(lastname != undefined) query += " lastname = '"+lastname+"',";
+	if(wage != undefined) query += " wage = '"+wage+"',";
+
+	query = query.slice(0,-1);
+
+	query += " WHERE id = "+id;
+
+	db.query(query, function(err, result, fields) {
+		if (err) throw err;
+
+		res.send(JSON.stringify(result));
+	});
+});
+
+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(result));
+	});
+});
+
+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(result));
+	});
+});
+
+//read food-stat
+
+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));
+	});
+});
+
+
+
+
+//relationships
+
+//cages in animal
+
+app.get('/animals/:id/cages', function(req, res) {
+	var id = req.params.id;
+
+	var query = "SELECT cages.* FROM animals INNER JOIN cages ON animals.id_cage = cages.id WHERE animals.id =" + id;
+
+	//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 += " cages." + conditions[index] + "='" + req.query[conditions[index]] + "'";
+		}
+	}
+
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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_animals/cages/:id_cage', function(req, res) {
+
+	var id_animals = req.params.id_animals;
+	var id_cage = req.params.id_cage;
+
+	var query = "SELECT cages.* FROM animals INNER JOIN cages ON animals.id_cage = cages.id WHERE animals.id=" + id_animals + " AND cages.id=" + id_cage;
+
+	//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 += " cages." + conditions[index] + "='" + req.query[conditions[index]] + "'";
+		}
+	}
+
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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));
+	});
+});
+
+//animal in cages
+
+app.get('/cages/:id/animals', function(req, res) {
+	var id = req.params.id;
+
+	var query = "SELECT animals.* FROM animals INNER JOIN cages ON animals.id_cage = cages.id WHERE cages.id =" + id;
+
+	//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 += " animals." + conditions[index] + "='" + req.query[conditions[index]] + "'";
+		}
+	}
+
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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));
+	});
+});
+
+
+//food in animal
+
+app.get('/animals/:id/food', function(req, res) {
+	var id = req.params.id;
+
+	var query = "SELECT food.* FROM animals INNER JOIN food ON animals.id = food.id_animal WHERE animals.id=" + id;
+
+	//SELECTION
+	var conditions = ["id","name", "quantity","id_animal"];
+	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]] + "'";
+		}
+	}
+
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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));
+	});
+});
+
+//animal in food
+
+app.get('/food/:id/animals', function(req, res) {
+	var id = req.params.id;
+
+	var query = "SELECT animals.* FROM food INNER JOIN animals ON food.id_animal = animals.id WHERE food.id=" + id;
+
+	//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]] + "'";
+		}
+	}
+
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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_food/animals/:id_animals', function(req, res) {
+
+	var id_animals = req.params.id_animals;
+	var id_food = req.params.id_food;
+
+	var query = "SELECT animals.* FROM food INNER JOIN animals ON food.id_animal = animals.id WHERE food.id=" + id_food + " AND animals.id=" + id_animals;
+
+	//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]] + "'";
+		}
+	}
+
+
+	//FILTERS
+	if ("fields" in req.query) {
+
+		query = query.replace("*", req.query["fields"]);
+	}
+
+	//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.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!');
+});
+