Add socketio.

.flaskenv

-FLASK_APP=opaque.py
+#FLASK_APP=opaque.py
 FLASK_ENV=development

app/__init__.py

@@ -3,6 +3,7 @@ from flask import Flask
 from flask_apscheduler import APScheduler
 from flask_login import LoginManager
 from flask_mail import Mail
+from flask_socketio import SocketIO
 from flask_sqlalchemy import SQLAlchemy
 
 
@@ -11,6 +12,7 @@ login_manager = LoginManager()
 login_manager.login_view = 'auth.login'
 mail = Mail()
 scheduler = APScheduler()
+socketio = SocketIO()
 
 
 def create_app(config_name):
@@ -23,6 +25,7 @@ def create_app(config_name):
     mail.init_app(app)
     scheduler.init_app(app)
     scheduler.start()
+    socketio.init_app(app)
 
     from .api import api as api_blueprint
     app.register_blueprint(api_blueprint, url_prefix='/api')

opaque.py

-from app import create_app, db
+from app import create_app, db, socketio
 from app.models import Corpus, User, Role, Permission, Job
 from flask_migrate import Migrate
 import os
 
-
 app = create_app(os.getenv('FLASK_CONFIG') or 'default')
 migrate = Migrate(app, db)
 
 
+if __name__ == '__main__':
+    socketio.run(app)
+
+
 @app.shell_context_processor
 def make_shell_context():
     return dict(db=db,

requirements.txt

 docker==4.0.2
+eventlet==0.25.0
 Flask==1.0.3
 Flask-APScheduler==1.11.0
 Flask-Login==0.4.1
 Flask-Mail==0.9.1
 Flask-Migrate==2.5.2
+Flask-SocketIO==4.2.1
 Flask-SQLAlchemy==2.4.0
 Flask-Table==0.5.0
 Flask-WTF==0.14.2