database init if it doesnt exist on background job start

src/app.py

@@ -7,13 +7,14 @@ from aliexpress import *
 app = Flask(__name__)
 CORS(app)
 
-@app.route('/init')
+@app.route('/init', methods = ['GET'])
 def init_db():
-    print("init")
+    status = check_schema()
-    initialize()
+    if not status:
-    return 'Hello, World!'
+        initialize()
+    return str(status)
 
-@app.route('/update')
+@app.route('/update', methods = ['GET'])
 def update_hist():
     print("update")
     update_items()
@@ -44,13 +45,13 @@ def add_item():
         # item not valid or can't be parsed
         return jsonify({'status': 1}), 400
 
-@app.route('/datahistory',methods = ['POST', 'GET'])
+@app.route('/datahistory',methods = ['GET'])
 def data_history_request():
     if request.method == 'GET':
         print("fetching data history")
         return jsonify(get_history())
 
-@app.route('/dataitem',methods = ['POST', 'GET'])
+@app.route('/dataitem',methods = ['GET'])
 def data_item_request():
     if request.method == 'GET':
         print("fetching data item")

src/background.py

@@ -1,12 +1,18 @@
 #!/usr/bin/python
 import requests, re, time, os
 
+def init():
+    url = "http://127.0.0.1:8080/init"
+    response = requests.get(url)
+    print(response)
+
 def update():
     url = "http://127.0.0.1:8080/update"
     response = requests.get(url)
     print(response)
 
 if __name__ == '__main__':
+    init()
     regex_time = re.compile(r'([1-9][0-9]*)([smhd])')
     formatted_time = os.environ.get('WAIT_TIME')
     units = {

src/db.py

@@ -193,3 +193,25 @@ def initialize():
     connection.commit()
     connection.close()
     print("Database initialized")
+
+def check_schema():
+    connection = connect_db()
+    cursor = connection.cursor()
+    cursor.execute("""
+    select
+    exists(
+        select *
+        from pg_tables
+        where tablename = 'item'
+        )
+    and exists(
+        select *
+        from pg_tables
+        where tablename = 'history'
+        );
+    """)
+    result = cursor.fetchall()
+    cursor.close()
+    connection.close()
+
+    return result[0][0]