Moves external request & API calling code out of misc

src/server/external.py

@@ -0,0 +1,59 @@
+import logging
+from json import JSONDecodeError
+from typing import List
+
+import aiohttp
+from aiohttp import ClientConnectorError
+
+
+logger = logging.getLogger(__name__)
+
+
+async def send_notifications(app, action: str, comments: List[dict]):
+    events = create_notification_batch(action, comments)
+    async with aiohttp.ClientSession() as session:
+        for event in events:
+            event.update(auth_token=app['config']['notifications']['auth_token'])
+            try:
+                async with session.get(app['config']['notifications']['url'], params=event) as resp:
+                    logger.debug(f'Completed Notification: {await resp.text()}, HTTP Status: {resp.status}')
+            except Exception:
+                logger.exception(f'Error requesting internal API, Status {resp.status}: {resp.text()}, '
+                                 f'comment_id: {event["comment_id"]}')
+
+
+async def send_notification(app, action: str, comment: dict):
+    await send_notifications(app, action, [comment])
+
+
+def create_notification_batch(action: str, comments: List[dict]) -> List[dict]:
+    action_type = action[0].capitalize()  # to turn Create -> C, edit -> U, delete -> D
+    events = []
+    for comment in comments:
+        event = {
+            'action_type': action_type,
+            'comment_id': comment['comment_id'],
+            'claim_id': comment['claim_id']
+        }
+        if comment.get('channel_id'):
+            event['channel_id'] = comment['channel_id']
+        events.append(event)
+    return events
+
+
+async def request_lbrynet(app, method, **params):
+    body = {'method': method, 'params': {**params}}
+    try:
+        async with aiohttp.request('POST', app['config']['lbrynet'], json=body) as req:
+            try:
+                resp = await req.json()
+            except JSONDecodeError as jde:
+                logger.exception(jde.msg)
+                raise Exception('JSON Decode Error In lbrynet request')
+            finally:
+                if 'result' in resp:
+                    return resp['result']
+                raise ValueError('LBRYNET Request Error', {'error': resp['error']})
+    except (ConnectionRefusedError, ClientConnectorError):
+        logger.critical("Connection to the LBRYnet daemon failed, make sure it's running.")
+        raise Exception("Server cannot verify delete signature")