- Improved api return content

- Check if user exists already

webservice/api.py

@@ -16,7 +16,7 @@ def users():
     for i in User.query.all():
         res.append(i.as_dict())
 
-    return jsonify(res)
+    return jsonify({"status": 200, "data": res})
 
 
 @api.route('/login', methods=['POST'])
@@ -27,15 +27,16 @@ def login():
 
     user = User.filter_by(username=username).first()
     if check_password(user.password, password):
-        return True  # TODO Return token
+        # TODO Return token
+        return jsonify({"status": 200, "text": "Successfully logged in"})
     else:
-        return False
+        return jsonify({"status": 500, "text": "Unable to login"})
 
 
 @api.route('/logout', methods=['GET'])
 def logout():
     # TODO
-    pass
+    return jsonify({"status": 200, "text": "Successfully logged out"})
 
 
 @api.route('/register', methods=['POST'])
@@ -44,6 +45,8 @@ def register():
     username = request_data['username']
     password = request_data['password']
 
+    if User.filter_by(username=username).first() is None:
+        # Username doesn't exist yet
         user = User(
             username=username,
             password=hash_password(password),
@@ -52,4 +55,6 @@ def register():
         db.session.add(user)
         db.session.commit()
 
-    pass
+        return jsonify({"status": 200, "text": "Successfully registered user", "data": user.as_dict()})
+    else:
+        return jsonify({"status": 500, "text": "Username already exist"})