Moves error code out of misc

src/server/errors.py

@@ -0,0 +1,45 @@
+import logging
+import aiohttp
+
+
+logger = logging.getLogger(__name__)
+
+
+ERRORS = {
+    'INVALID_PARAMS': {'code': -32602, 'message': 'Invalid Method Parameter(s).'},
+    'INTERNAL': {'code': -32603, 'message': 'Internal Server Error. Please notify a LBRY Administrator.'},
+    'METHOD_NOT_FOUND': {'code': -32601, 'message': 'The method does not exist / is not available.'},
+    'INVALID_REQUEST': {'code': -32600, 'message': 'The JSON sent is not a valid Request object.'},
+    'PARSE_ERROR': {
+        'code': -32700,
+        'message': 'Invalid JSON was received by the server.\n'
+                   'An error occurred on the server while parsing the JSON text.'
+    }
+}
+
+
+def make_error(error, exc=None) -> dict:
+    body = ERRORS[error] if error in ERRORS else ERRORS['INTERNAL']
+    try:
+        if exc:
+            exc_name = type(exc).__name__
+            body.update({exc_name: str(exc)})
+
+    finally:
+        return body
+
+
+async def report_error(app, exc, msg=''):
+    try:
+        if 'slack_webhook' in app['config']:
+            if msg:
+                msg = f'"{msg}"'
+            body = {
+                "text": f"Got `{type(exc).__name__}`: ```\n{str(exc)}```\n{msg}"
+            }
+            async with aiohttp.ClientSession() as sesh:
+                async with sesh.post(app['config']['slack_webhook'], json=body) as resp:
+                    await resp.wait_for_close()
+
+    except Exception:
+        logger.critical('Error while logging to slack webhook')