Launches web server to serve the client database via http using configurable port

torchsub/torch_sub.py

@@ -7,6 +7,8 @@ import threading
 
 import paho.mqtt.subscribe as mqtt
 
+from torchsub import torch_sub_webserver
+
 database_filename = "clients.json"
 database_lock = threading.Lock()
 
@@ -44,6 +46,7 @@ class Config:
         self.topic = None
         self.tls = None
         self.database_file = database_filename
+        self.web_port = 8080
         parser = self.do_cli_argument_parsing()
         (config_path, config_filename) = self.get_config_path(parser.parse_args())
         print("Using torch configuration path: " + config_path)
@@ -97,6 +100,8 @@ class Config:
             }
         if config.has_section('database'):
             self.database_file = config['database'].get('Filename', fallback=database_filename)
+        if config.has_section('web'):
+            self.web_port = config['web'].getint('Port', fallback=self.web_port)
 
 
 def main():
@@ -109,6 +114,10 @@ def main():
         with open(database_filename, 'w') as database_blank:
             json.dump({}, database_blank)
 
+    threading.Thread(target=torch_sub_webserver.app.run,
+                     args=("localhost", config.web_port),
+                     daemon=True).start()
+
     subscribe(config.broker_hostname,
               config.broker_port,
               config.topic,

torchsub/torch_sub_webserver.py

@@ -0,0 +1,15 @@
+from flask import Flask
+
+from torchsub import torch_sub
+
+app = Flask(__name__)
+
+
+@app.route('/clients', methods=['GET'])
+def clients():
+    with open(torch_sub.database_filename, 'r') as database:
+        return app.response_class(
+            response=database.read(),
+            status=200,
+            mimetype='application/json'
+        )