comment-server/server/server.py

73 lines
2.3 KiB
Python

import asyncio
from aiohttp import web
import server.database as db
ERRORS = {
'INVALID_PARAMS': {'code': -32602, 'message': 'Invalid parameters'},
'INTERNAL': {'code': -32603, 'message': 'An internal error'},
'UNKNOWN': {'code': -1, 'message': 'An unknown or very miscellaneous error'},
}
class CommentServer:
def __init__(self, port=2903):
self.port = port
self.app = web.Application(debug=True)
self.app.add_routes([web.post('/api', self.api)])
self.runner = None
self.server = None
methods = {
'get_claim_comments': db.get_claim_comments,
'get_comment_ids': db.get_comment_ids,
'get_comments_by_id': db.get_comments_by_id,
'create_comment': db.create_comment,
}
def process_json(self, body) -> dict:
response = {'jsonrpc': '2.0', 'id': body['id']}
if body['method'] in self.methods:
params = body.get('params', {})
result = self.methods[body['method']](self, **params)
if type(result) is dict and 'error' in result:
response['error'] = result['error']
else:
response['result'] = result
else:
response['error'] = ERRORS['UNKNOWN']
return response
async def _start(self):
self.runner = web.AppRunner(self.app)
await self.runner.setup()
self.server = web.TCPSite(self.runner, 'localhost', self.port)
await self.server.start()
async def _stop(self):
await self.runner.cleanup()
async def run(self, max_timeout=3600):
try:
await self._start()
await asyncio.sleep(max_timeout)
except asyncio.CancelledError:
pass
finally:
await self._stop()
async def api(self, request):
body = await request.json()
if type(body) is list or type(body) is dict:
if type(body) is list:
response = [self.process_json(part) for part in body]
else:
response = self.process_json(body)
return web.json_response(response)
else:
return web.json_response({'error': ERRORS['UNKNOWN']})
if __name__ == '__main__':
app = CommentServer()
asyncio.run(app.run())