diff --git a/src/api/user/TODO b/src/api/user/TODO
index 653d4f3..326da16 100644
--- a/src/api/user/TODO
+++ b/src/api/user/TODO
@@ -1,15 +1,7 @@
 Todo :
-- test matchHistory & wins/losses
-
 - create users with an avatar (by default) -> POST/GET/PATCH/DELETE avatar
 - create a whole image upload API that ensures files are not executables, converts to a single type, stores the image and returns a UID to address them
-- add a privacy setting so not anybody can GET friends, match history, etc. ?
-
-
-
-- choose where to use == and ===
-- use more schema in endpoints for querystring and body
-- split code into files with functions called in the endpoints
+- add a privacy setting so not anybody can GET friends, match history, etc. (what are the RGPD requirements ?) ?
 
 
 
diff --git a/src/api/user/dFriend.js b/src/api/user/dFriend.js
new file mode 100644
index 0000000..333bd93
--- /dev/null
+++ b/src/api/user/dFriend.js
@@ -0,0 +1,23 @@
+export async function dFriend(request, reply, fastify, getUserInfo, getFriend, deleteFriend) {
+	try {
+		if (!request.user) {
+			return reply.code(400).send({ error: "Please specify a user" });
+		}
+		const userId = request.params.userId;
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		if (request.user !== 'admin' && request.user !== userId) {
+			return reply.code(401).send({ error: "Unauthorized" });
+		}
+		const friendId = request.params.friendId;
+		if (!getFriend.get(userId, friendId)) {
+			return reply.code(404).send({ error: "Friend does not exist" });
+		}
+		deleteFriend.run(userId, friendId);
+		return reply.code(200).send({ msg: "Friend deleted successfully" });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/dFriends.js b/src/api/user/dFriends.js
new file mode 100644
index 0000000..803dd89
--- /dev/null
+++ b/src/api/user/dFriends.js
@@ -0,0 +1,19 @@
+export async function dFriends(request, reply, fastify, getUserInfo, deleteFriends) {
+	try {
+		if (!request.user) {
+			return reply.code(400).send({ error: "Please specify a user" });
+		}
+		const userId = request.params.userId;
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		if (request.user !== 'admin' && request.user !== userId) {
+			return reply.code(401).send({ error: "Unauthorized" });
+		}
+		deleteFriends.run(userId);
+		return reply.code(200).send({ msg: "Friends deleted successfully" });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/dMatchHistory.js b/src/api/user/dMatchHistory.js
new file mode 100644
index 0000000..09efa08
--- /dev/null
+++ b/src/api/user/dMatchHistory.js
@@ -0,0 +1,20 @@
+export async function dMatchHistory(request, reply, fastify, getUserInfo, deleteMatchHistory, deleteStats) {
+	try {
+		if (!request.user) {
+			return reply.code(400).send({ error: "Please specify a user" });
+		}
+		const userId = request.params.userId;
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		if (request.user !== 'admin' && request.user !== userId) {
+			return reply.code(401).send({ error: "Unauthorized" });
+		}
+		deleteMatchHistory.run(userId);
+		deleteStats.run(userId);
+		return reply.code(200).send({ msg: "Match history deleted successfully" });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/dMember.js b/src/api/user/dMember.js
new file mode 100644
index 0000000..240a297
--- /dev/null
+++ b/src/api/user/dMember.js
@@ -0,0 +1,25 @@
+export async function dMember(request, reply, fastify, getUserInfo, changeDisplayName) {
+	try {
+		if (!request.user) {
+			return reply.code(400).send({ error: "Please specify a user" });
+		}
+		const userId = request.params.userId;
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		const user = request.user;
+		const member = request.params.member;
+		if (user === 'admin' || user === request.params.userId) {
+			if (member === 'displayName') {
+				changeDisplayName.run("", request.params.userId);
+				return reply.code(200).send({ msg: "Display name deleted successfully" });
+			}
+			return reply.code(400).send({ msg: "Member does not exist" })
+		} else {
+			return reply.code(401).send({ error: 'You dont have the right to delete this' });
+		}
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/dUser.js b/src/api/user/dUser.js
new file mode 100644
index 0000000..0b0ca0a
--- /dev/null
+++ b/src/api/user/dUser.js
@@ -0,0 +1,14 @@
+export async function dUser(request, reply, fastify, getUserInfo, deleteMatchHistory, deleteFriends, deleteUser) {
+	try {
+		if (!getUserInfo.get(request.params.userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		deleteMatchHistory.run(request.params.userId);
+		deleteFriends.run(request.params.userId);
+		deleteUser.run(request.params.userId);
+		return reply.code(200).send({ msg: "User deleted successfully" });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/default.js b/src/api/user/default.js
index ef9cf43..d122bf9 100644
--- a/src/api/user/default.js
+++ b/src/api/user/default.js
@@ -2,6 +2,23 @@ import fastifyJWT from '@fastify/jwt';
 import fastifyCookie from '@fastify/cookie';
 import Database from 'better-sqlite3';
 
+import { gUsers } from './gUsers.js'
+import { gUser } from './gUser.js'
+import { gNumberUsers } from './gNumberUsers.js'
+import { gFriends } from './gFriends.js'
+import { gNumberFriends } from './gNumberFriends.js'
+import { gMatchHistory } from './gMatchHistory.js'
+import { gNumberMatches } from './gNumberMatches.js'
+import { pUser } from './pUser.js'
+import { pFriend } from './pFriend.js'
+import { pMatchHistory } from './pMatchHistory.js'
+import { uMember } from './uMember.js'
+import { dUser } from './dUser.js'
+import { dMember } from './dMember.js'
+import { dFriends } from './dFriends.js'
+import { dFriend } from './dFriend.js'
+import { dMatchHistory } from './dMatchHistory.js'
+
 const env = process.env.NODE_ENV || 'development';
 
 let database;
@@ -72,10 +89,9 @@ const deleteFriends = database.prepare('DELETE FROM friends WHERE username = ?;'
 const deleteMatchHistory = database.prepare('DELETE FROM matchHistory WHERE username = ?;');
 const deleteStats = database.prepare('UPDATE userData SET wins = 0, losses = 0 WHERE username = ?;');
 
-/**
- * @param {import('fastify').FastifyInstance}		fastify
- * @param {import('fastify').FastifyPluginOptions}	options
- */
+const querySchema = { type: 'object', required: ['iStart', 'iEnd'], properties: { iStart: { type: 'integer', minimum: 0 }, iEnd: { type: 'integer', minimum: 0 } } }
+const bodySchema = { type: 'object', required: ['opponent', 'myScore', 'opponentScore'], properties: { opponent: { type: 'string' }, myScore: { type: 'integer', minimum: 0 }, opponentScore: { type: 'integer', minimum: 0 } } }
+
 export default async function(fastify, options) {
 	fastify.register(fastifyJWT, {
 		secret: process.env.JWT_SECRET || '123456789101112131415161718192021',
@@ -106,347 +122,58 @@ export default async function(fastify, options) {
 	});
 
 	// GET
-	fastify.get('/users', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const { iStart, iEnd } = request.query;
-			if (!iStart || !iEnd) {
-				return reply.code(400).send({ error: "Please specify both a starting and an ending index" });
-			}
-			if (Number(iEnd) < Number(iStart)) {
-				return reply.code(400).send({ error: "Starting index cannot be strictly inferior to ending index" });
-			}
-			const users = getUserData.all(Number(iEnd) - Number(iStart), Number(iStart));
-			if (!users.length) {
-				return reply.code(404).send({ error: "No users exist in the selected range" });
-			}
-			return reply.code(200).send({ users });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+	fastify.get('/users', { preHandler: [fastify.authenticate], schema: { querystring: querySchema } }, async (request, reply) => {
+		return gUsers(request, reply, fastify, getUserData);
 	});
 	fastify.get('/users/count', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const row = getNumberUsers.get();
-			return reply.code(200).send({ n_users: row.n_users });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return gNumberUsers(request, reply, fastify, getNumberUsers);
 	});
 	fastify.get('/users/:userId', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			const userInfo = getUserInfo.get(request.params.userId);
-			return reply.code(200).send({ userInfo });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return gUser(request, reply, fastify, getUserInfo);
 	});
-	fastify.get('/users/:userId/friends', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const userId = request.params.userId;
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			const { iStart, iEnd } = request.query;
-			if (!iStart || !iEnd) {
-				return reply.code(400).send({ error: "Please specify both a starting and an ending index" });
-			}
-			if (Number(iEnd) < Number(iStart)) {
-				return reply.code(400).send({ error: "Starting index cannot be strictly inferior to ending index" });
-			}
-			const friends = getFriends.all(userId, Number(iEnd) - Number(iStart), Number(iStart));
-			if (!friends.length) {
-				return reply.code(404).send({ error: "No friends exist in the selected range" });
-			}
-			return reply.code(200).send({ friends });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+	fastify.get('/users/:userId/friends', { preHandler: [fastify.authenticate], schema: { querystring: querySchema } }, async (request, reply) => {
+		return gFriends(request, reply, fastify, getUserInfo, getFriends);
 	});
 	fastify.get('/users/:userId/friends/count', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const userId = request.params.userId;
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			const row = getNumberFriends.get(userId);
-			return reply.code(200).send({ n_friends: row.n_friends });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return gNumberFriends(request, reply, fastify, getUserInfo, getNumberFriends);
 	});
-	fastify.get('/users/:userId/matchHistory', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const userId = request.params.userId;
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			const { iStart, iEnd } = request.query;
-			if (!iStart || !iEnd) {
-				return reply.code(400).send({ error: "Please specify both a starting and an ending index" });
-			}
-			if (Number(iEnd) < Number(iStart)) {
-				return reply.code(400).send({ error: "Starting index cannot be strictly inferior to ending index" });
-			}
-			const matchHistoryId = getMatchHistory.all(userId, Number(iEnd) - Number(iStart), Number(iStart));
-			if (!matchHistoryId.length) {
-				return reply.code(404).send({ error: "No matches exist in the selected range" });
-			}
-			const promises = matchHistoryId.map(async (id) => {
-				const res = await fetch('https://transcendence-api-scoreStore:3000/' + id, { method: "GET", headers: { "Content-Type": "application/json" } });
-				if (!res.ok)
-					throw new Error('Failed to fetch item from blockchain API');
-				return res.json();
-			});
-			const matchHistory = await Promise.all(promises);
-			return reply.code(200).send({ matchHistory });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+	fastify.get('/users/:userId/matchHistory', { preHandler: [fastify.authenticate], schema: { querystring: querySchema } }, async (request, reply) => {
+		return gMatchHistory(request, reply, fastify, getUserInfo, getMatchHistory);
 	});
 	fastify.get('/users/:userId/matchHistory/count', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const userId = request.params.userId;
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			const row = getNumberMatches.get(userId);
-			return reply.code(200).send({ n_matches: row.n_matches });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return gNumberMatches(request, reply, fastify, getUserInfo, getNumberMatches);
 	});
 
 	// POST
 	fastify.post('/users/:userId', { preHandler: [fastify.authenticateAdmin] }, async (request, reply) => {
-		try {
-			const userId = request.params.userId;
-			if (!request.user || !request.user.user) {
-				return reply.code(400).send({ error: "Please specify a user" });
-			}
-			if (request.user.user !== 'admin') {
-				return reply.code(401).send({ error: "Unauthorized" });
-			}
-			if (getUserInfo.get(userId)) {
-				return reply.code(400).send({ error: "User already exist" });
-			}
-			if (!request.body || !request.body.displayName) {
-				return reply.code(400).send({ error: "Please specify a display name" });
-			}
-			createUser.run(userId, request.body.displayName);
-			return reply.code(200).send({ msg: "User created successfully" });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return pUser(request, reply, fastify, getUserInfo, createUser);
 	});
 	fastify.post('/users/:userId/friends/:friendId', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const userId = request.params.userId;
-			if (!request.user) {
-				return reply.code(400).send({ error: "Please specify a user" });
-			}
-			if (request.user !== 'admin' && request.user !== userId) {
-				return reply.code(401).send({ error: "Unauthorized" });
-			}
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			const friendId = request.params.friendId;
-			if (!getUserInfo.get(friendId)) {
-				return reply.code(404).send({ error: "Friend does not exist" });
-			}
-			if (friendId === userId) {
-				return reply.code(400).send({ error: "You can't add yourself :D" });
-			}
-			if (getFriend.get(userId, friendId)) {
-				return reply.code(400).send({ error: "Friend already added" });
-			}
-			addFriend.run(userId, friendId)
-			return reply.code(200).send({ msg: "Friend added successfully" });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return pFriend(request, reply, fastify, getUserInfo, getFriend, addFriend);
 	});
-	fastify.post('/users/:userId/matchHistory', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const userId = request.params.userId;
-			if (!request.user) {
-				return reply.code(400).send({ error: "Please specify a user" });
-			}
-			if (request.user !== 'admin' && request.user !== userId) {
-				return reply.code(401).send({ error: "Unauthorized" });
-			}
-			if (!request.body || !request.body.opponent || !request.body.p1Score || !request.body.p2Score) {
-				return reply.code(400).send({ error: "Please specify the opponent and the score of both players" });
-			}
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			if (!getUserInfo.get(request.body.opponent)) {
-				return reply.code(404).send({ error: "Opponent does not exist" });
-			}
-			if (request.body.opponent === userId) {
-				return reply.code(400).send({ error: "Do you have dementia ? You cannot have played a match against yourself gramps" });
-			}
-			if (request.body.p1Score < 0 || request.body.p2Score < 0) {
-				return reply.code(400).send({ error: "A score cannot be strictly negative" });
-			}
-			const res = await fetch('http://localhost:3003/', { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({ p1: userId, p2: request.body.opponent, p1Score: request.body.p1Score, p2Score: request.body.p2Score }) });
-			if (!res.ok)
-				return reply.code(500).send({ error: "Internal server error" });
-			addMatch.run(userId, res.id);
-			if (request.body.p1Score > request.body.p2Score) {
-				incWins.run(userId);
-			} else if (request.body.p1Score < request.body.p2Score) {
-				incLosses.run(userId);
-			}
-			return reply.code(200).send({ msg: "Match successfully saved to the blockchain" });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+	fastify.post('/users/:userId/matchHistory', { preHandler: [fastify.authenticate], schema: { body: bodySchema } }, async (request, reply) => {
+		return pMatchHistory(request, reply, fastify, getUserInfo, addMatch, incWins, incLosses);
 	});
 
 	// PATCH
 	fastify.patch('/users/:userId/:member', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			const userId = request.params.userId;
-			if (!request.user || !request.user.user) {
-				return reply.code(400).send({ error: "Please specify a user" });
-			}
-			if (request.user.user !== 'admin' && request.user.user !== userId) {
-				return reply.code(401).send({ error: "Unauthorized" });
-			}
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			const member = request.params.member;
-			if (member === 'displayName') {
-				if (!request.body || !request.body.displayName) {
-					return reply.code(400).send({ error: "Please specify a displayName" });
-				}
-				changeDisplayName.run(request.body.displayName, userId);
-				return reply.code(200).send({ msg: "Display name modified successfully" });
-			}
-			return reply.code(400).send({ error: "Member does not exist" })
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return uMember(request, reply, fastify, getUserInfo, changeDisplayName);
 	});
 
 	// DELETE
 	fastify.delete('/users/:userId', { preHandler: [fastify.authenticateAdmin] }, async (request, reply) => {
-		try {
-			if (!getUserInfo(request.params.userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			deleteMatchHistory.run(request.params.userId);
-			deleteFriends.run(request.params.userId);
-			deleteUser.run(request.params.userId);
-			return reply.code(200).send({ msg: "User deleted successfully" });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return dUser(request, reply, fastify, getUserInfo, deleteMatchHistory, deleteFriends, deleteUser);
 	});
 	fastify.delete('/users/:userId/:member', { preHandler: fastify.authenticate }, async (request, reply) => {
-		try {
-			if (!request.user || !request.user.user) {
-				return reply.code(400).send({ error: "Please specify a user" });
-			}
-			const userId = request.params.userId;
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			const user = request.user.user;
-			const member = request.params.member;
-			if (user == 'admin' || user == request.params.userId) {
-				if (member === 'displayName') {
-					changeDisplayName.run("", request.params.userId);
-					return reply.code(200).send({ msg: "Display name deleted successfully" });
-				}
-				return reply.code(400).send({ msg: "Member does not exist" })
-			} else {
-				return reply.code(401).send({ error: 'You dont have the right to delete this' });
-			}
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
-
+		return dMember(request, reply, fastify, getUserInfo, changeDisplayName);
 	});
 	fastify.delete('/users/:userId/friends', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			if (!request.user || !request.user.user) {
-				return reply.code(400).send({ error: "Please specify a user" });
-			}
-			const userId = request.params.userId;
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			if (request.user.user != 'admin' && request.user.user != userId) {
-				return reply.code(401).send({ error: "Unauthorized" });
-			}
-			deleteFriends.run(userId);
-			return reply.code(200).send({ msg: "Friends deleted successfully" });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return dFriends(request, reply, fastify, getUserInfo, deleteFriends);
 	});
 	fastify.delete('/users/:userId/friends/:friendId', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			if (!request.user || !request.user.user) {
-				return reply.code(400).send({ error: "Please specify a user" });
-			}
-			const userId = request.params.userId;
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			if (request.user.user != 'admin' && request.user.user != userId) {
-				return reply.code(401).send({ error: "Unauthorized" });
-			}
-			const friendId = request.params.friendId;
-			if (!getFriend.get(friendId)) {
-				return reply.code(404).send({ error: "Friend does not exist" });
-			}
-			deleteFriend.run(userId, friendId);
-			return reply.code(200).send({ msg: "Friend deleted successfully" });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return dFriend(request, reply, fastify, getUserInfo, getFriend, deleteFriend);
 	});
 	fastify.delete('/users/:userId/matchHistory', { preHandler: [fastify.authenticate] }, async (request, reply) => {
-		try {
-			if (!request.user || !request.user.user) {
-				return reply.code(400).send({ error: "Please specify a user" });
-			}
-			const userId = request.params.userId;
-			if (!getUserInfo.get(userId)) {
-				return reply.code(404).send({ error: "User does not exist" });
-			}
-			if (request.user.user != 'admin' && request.user.user != userId) {
-				return reply.code(401).send({ error: "Unauthorized" });
-			}
-			deleteMatchHistory.run(userId);
-			deleteStats.run(userId);
-			return reply.code(200).send({ msg: "Match history deleted successfully" });
-		} catch (err) {
-			fastify.log.error(err);
-			return reply.code(500).send({ error: "Internal server error" });
-		}
+		return dMatchHistory(request, reply, fastify, getUserInfo, deleteMatchHistory, deleteStats);
 	});
 }
diff --git a/src/api/user/gFriends.js b/src/api/user/gFriends.js
new file mode 100644
index 0000000..cc24986
--- /dev/null
+++ b/src/api/user/gFriends.js
@@ -0,0 +1,20 @@
+export async function gFriends(request, reply, fastify, getUserInfo, getFriends) {
+	try {
+		const userId = request.params.userId;
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		const { iStart, iEnd } = request.query;
+		if (Number(iEnd) < Number(iStart)) {
+			return reply.code(400).send({ error: "Starting index cannot be strictly inferior to ending index" });
+		}
+		const friends = getFriends.all(userId, Number(iEnd) - Number(iStart), Number(iStart));
+		if (!friends.length) {
+			return reply.code(404).send({ error: "No friends exist in the selected range" });
+		}
+		return reply.code(200).send({ friends });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/gMatchHistory.js b/src/api/user/gMatchHistory.js
new file mode 100644
index 0000000..2566fe3
--- /dev/null
+++ b/src/api/user/gMatchHistory.js
@@ -0,0 +1,29 @@
+export async function gMatchHistory(request, reply, fastify, getUserInfo, getMatchHistory) {
+	try {
+		const userId = request.params.userId;
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		const { iStart, iEnd } = request.query;
+		if (Number(iEnd) < Number(iStart)) {
+			return reply.code(400).send({ error: "Starting index cannot be strictly inferior to ending index" });
+		}
+		const matchHistoryId = getMatchHistory.all(userId, Number(iEnd) - Number(iStart), Number(iStart));
+		if (!matchHistoryId.length) {
+			return reply.code(404).send({ error: "No matches exist in the selected range" });
+		}
+		const ids = matchHistoryId.map(obj => Object.values(obj)[0]);
+		const promises = ids.map(async (id) => {
+			const res = await fetch(`http://localhost:3003/${id}`, { method: "GET" });
+			if (!res.ok) {
+				throw new Error('Failed to fetch item from blockchain API');
+			}
+			return await res.json();
+		});
+		const matchHistory = await Promise.all(promises);
+		return reply.code(200).send({ matchHistory });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/gNumberFriends.js b/src/api/user/gNumberFriends.js
new file mode 100644
index 0000000..ca1ec24
--- /dev/null
+++ b/src/api/user/gNumberFriends.js
@@ -0,0 +1,13 @@
+export async function gNumberFriends(request, reply, fastify, getUserInfo, getNumberFriends) {
+	try {
+		const userId = request.params.userId;
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		const row = getNumberFriends.get(userId);
+		return reply.code(200).send({ n_friends: row.n_friends });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/gNumberMatches.js b/src/api/user/gNumberMatches.js
new file mode 100644
index 0000000..7abe3a6
--- /dev/null
+++ b/src/api/user/gNumberMatches.js
@@ -0,0 +1,13 @@
+export async function gNumberMatches(request, reply, fastify, getUserInfo, getNumberMatches) {
+	try {
+		const userId = request.params.userId;
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		const row = getNumberMatches.get(userId);
+		return reply.code(200).send({ n_matches: row.n_matches });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/gNumberUsers.js b/src/api/user/gNumberUsers.js
new file mode 100644
index 0000000..b8c025d
--- /dev/null
+++ b/src/api/user/gNumberUsers.js
@@ -0,0 +1,9 @@
+export async function gNumberUsers(request, reply, fastify, getNumberUsers) {
+	try {
+		const row = getNumberUsers.get();
+		return reply.code(200).send({ n_users: row.n_users });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/gUser.js b/src/api/user/gUser.js
new file mode 100644
index 0000000..16a8439
--- /dev/null
+++ b/src/api/user/gUser.js
@@ -0,0 +1,13 @@
+export async function gUser(request, reply, fastify, getUserInfo) {
+	try {
+		const userId = request.params.userId;
+		const userInfo = getUserInfo.get(userId);
+		if (!userInfo) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		return reply.code(200).send({ userInfo });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/gUsers.js b/src/api/user/gUsers.js
new file mode 100644
index 0000000..4a60d6d
--- /dev/null
+++ b/src/api/user/gUsers.js
@@ -0,0 +1,16 @@
+export async function gUsers(request, reply, fastify, getUserData) {
+	try {
+		const { iStart, iEnd } = request.query;
+		if (Number(iEnd) < Number(iStart)) {
+			return reply.code(400).send({ error: "Starting index cannot be strictly inferior to ending index" });
+		}
+		const users = getUserData.all(Number(iEnd) - Number(iStart), Number(iStart));
+		if (!users.length) {
+			return reply.code(404).send({ error: "No users exist in the selected range" });
+		}
+		return reply.code(200).send({ users });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/pFriend.js b/src/api/user/pFriend.js
new file mode 100644
index 0000000..dfb5341
--- /dev/null
+++ b/src/api/user/pFriend.js
@@ -0,0 +1,29 @@
+export async function pFriend(request, reply, fastify, getUserInfo, getFriend, addFriend) {
+	try {
+		const userId = request.params.userId;
+		if (!request.user) {
+			return reply.code(400).send({ error: "Please specify a user" });
+		}
+		if (request.user !== 'admin' && request.user !== userId) {
+			return reply.code(401).send({ error: "Unauthorized" });
+		}
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		const friendId = request.params.friendId;
+		if (!getUserInfo.get(friendId)) {
+			return reply.code(404).send({ error: "Friend does not exist" });
+		}
+		if (friendId === userId) {
+			return reply.code(400).send({ error: "You can't add yourself :D" });
+		}
+		if (getFriend.get(userId, friendId)) {
+			return reply.code(400).send({ error: "Friend already added" });
+		}
+		addFriend.run(userId, friendId)
+		return reply.code(200).send({ msg: "Friend added successfully" });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/pMatchHistory.js b/src/api/user/pMatchHistory.js
new file mode 100644
index 0000000..d619149
--- /dev/null
+++ b/src/api/user/pMatchHistory.js
@@ -0,0 +1,36 @@
+export async function pMatchHistory(request, reply, fastify, getUserInfo, addMatch, incWins, incLosses) {
+	try {
+		const userId = request.params.userId;
+		if (!request.user) {
+			return reply.code(400).send({ error: "Please specify a user" });
+		}
+		if (request.user !== 'admin' && request.user !== userId) {
+			return reply.code(401).send({ error: "Unauthorized" });
+		}
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		if (!getUserInfo.get(request.body.opponent)) {
+			return reply.code(404).send({ error: "Opponent does not exist" });
+		}
+		if (request.body.opponent === userId) {
+			return reply.code(400).send({ error: "Do you have dementia ? You cannot have played a match against yourself gramps" });
+		}
+		const res = await fetch('http://localhost:3003/', { method: "POST", headers: { "Content-Type": "application/json" }, body: JSON.stringify({ p1: userId, p2: request.body.opponent, p1Score: request.body.myScore, p2Score: request.body.opponentScore }) });
+		if (!res.ok)
+			return reply.code(500).send({ error: "Internal server error" });
+		const data = await res.json();
+		addMatch.run(userId, data.id);
+		if (request.body.myScore > request.body.opponentScore) {
+			incWins.run(userId);
+			incLosses.run(request.body.opponent);
+		} else if (request.body.myScore < request.body.opponentScore) {
+			incWins.run(request.body.opponent);
+			incLosses.run(userId);
+		}
+		return reply.code(200).send({ msg: "Match successfully saved to the blockchain" });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/pUser.js b/src/api/user/pUser.js
new file mode 100644
index 0000000..c5dd88e
--- /dev/null
+++ b/src/api/user/pUser.js
@@ -0,0 +1,22 @@
+export async function pUser(request, reply, fastify, getUserInfo, createUser) {
+	try {
+		const userId = request.params.userId;
+		if (!request.user || !request.user.user) {
+			return reply.code(400).send({ error: "Please specify a user" });
+		}
+		if (request.user.user !== 'admin') {
+			return reply.code(401).send({ error: "Unauthorized" });
+		}
+		if (getUserInfo.get(userId)) {
+			return reply.code(400).send({ error: "User already exist" });
+		}
+		if (!request.body || !request.body.displayName) {
+			return reply.code(400).send({ error: "Please specify a display name" });
+		}
+		createUser.run(userId, request.body.displayName);
+		return reply.code(200).send({ msg: "User created successfully" });
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}
diff --git a/src/api/user/uMember.js b/src/api/user/uMember.js
new file mode 100644
index 0000000..67997d7
--- /dev/null
+++ b/src/api/user/uMember.js
@@ -0,0 +1,26 @@
+export async function uMember(request, reply, fastify, getUserInfo, changeDisplayName) {
+	try {
+		const userId = request.params.userId;
+		if (!request.user) {
+			return reply.code(400).send({ error: "Please specify a user" });
+		}
+		if (request.user !== 'admin' && request.user !== userId) {
+			return reply.code(401).send({ error: "Unauthorized" });
+		}
+		if (!getUserInfo.get(userId)) {
+			return reply.code(404).send({ error: "User does not exist" });
+		}
+		const member = request.params.member;
+		if (member === 'displayName') {
+			if (!request.body || !request.body.displayName) {
+				return reply.code(400).send({ error: "Please specify a displayName" });
+			}
+			changeDisplayName.run(request.body.displayName, userId);
+			return reply.code(200).send({ msg: "Display name modified successfully" });
+		}
+		return reply.code(400).send({ error: "Member does not exist" })
+	} catch (err) {
+		fastify.log.error(err);
+		return reply.code(500).send({ error: "Internal server error" });
+	}
+}