backend: implment GET for car by name

backend/src/db_client.py

@@ -82,9 +82,9 @@ class DBClient:
         self.query(STARTUP_TABLE_CREATION_QUERIES['food'])
         self.query(STARTUP_TABLE_CREATION_QUERIES['passengers'])
 
-    def query(self, query_str, quiet=False):
+    def query(self, query_str, quiet=False, params=None):
         self.info(f'Executing query: {query_str}')
-        self.cursor.execute(query_str)
+        self.cursor.execute(query_str, params)
         if quiet:
             return []
         return self.cursor.fetchall()

backend/src/server.py

@@ -20,5 +20,42 @@ def login():
     else:
         return jsonify({'error': 'Request must contain JSON data'}), 400
     
+@app.route('/car', methods=['GET'])
+def get_car():
+    if not request.is_json:
+        return jsonify({'error': 'Request must contain JSON data'}), 400
+
+    data = request.get_json()
+
+    if 'name' not in data or not data['name']:
+        return jsonify({'error': 'Request must contain name field'}), 400
+    
+    query = f'SELECT * from car WHERE name = %s'
+    output = database.query(query_str=query, params=(data['name'],))
+    if not output:
+        return jsonify({"message": "No car by that name exist"}), 404
+    car = output[0]
+    if len(car) != 3:
+        return jsonify({'error': 'Car data is corrupted'}), 500
+
+    response = {
+        "name": car[0],
+        "car": car[1],
+        "freeCarSpaces": car[2] 
+    }
+    return jsonify(response), 200
+    
+@app.route('/car', methods=['POST'])
+def add_car():
+    return jsonify({"hello": "user"}), 200
+    
+@app.route('/car', methods=['UPDATE'])
+def update_car():
+    return jsonify({"hello": "user"}), 200
+
+@app.route('/car', methods=['DELETE'])
+def delete_car():
+    return jsonify({"hello": "user"}), 200
+
 if __name__ == "__main__":
     app.run(debug=True)