User Management backend - Base - Config file

edison/__init__.py

@@ -1,8 +1,10 @@
 import os
 
 from flask import Flask
+from edison.config import get_config_object
 
 
 # Put app here so the entire app could import it.
 app = Flask(__name__)
+app.config.from_object(get_config_object(app.config["ENV"]))
 basedir = os.path.abspath(os.path.dirname(__file__))

edison/config.py

@@ -0,0 +1,36 @@
+import inspect
+import sys
+
+
+def get_config_object(env_keyword: str):
+    """
+    Returns the the desired config class path.
+
+    The function iterates through a dictionary returned by inspect.
+    The dictionary contains details about all of the file members.
+    Its key is the name of the member and value is obj which contains all the details about the member.
+    The desired config path is being picked by the ENV_KEYWORD field defined in the config class.
+
+    Parameters:
+    env_keyword (str): Should be equals to one of the config classes ENV_KEYWORD field.
+
+    Returns:
+    str: module_name.class_name, which is the full path of the config class.
+    """
+    for name, obj in inspect.getmembers(sys.modules[__name__]):
+        if issubclass(obj, Config) and obj.ENV_KEYWORD == env_keyword:
+            return ".".join([obj.__module__, name])
+
+
+class Config:
+    ENV_KEYWORD = ""
+    DEBUG = False
+
+
+class ProductionConfig(Config):
+    ENV_KEYWORD = "production"
+
+
+class DevelopmentConfig(Config):
+    ENV_KEYWORD = "development"
+    DEBUG = True

setup.sh

@@ -17,6 +17,8 @@ sudo apt-get install -y postgresql postgresql-contrib
 echo "install requirements"
 pip3 install -r /vagrant/requirements.txt
 
+export FLASK_ENV=development
+
 echo "running app.py"
 export FLASK_APP=/vagrant/edison/app.py
 flask run -h 0.0.0.0 -p $FLASK_PORT >> /vagrant/edison/app.log 2>&1 &