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Using RethinkDB with tornado
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| from tornado.gen import coroutine | |
| from tornado.web import RequestHandler | |
| from tornado.web import Application | |
| from tornado.ioloop import IOLoop | |
| import rethinkdb.net as net | |
| import rethinkdb as r | |
| connection = r.connect(host='localhost') | |
| class BaseHandler(RequestHandler): | |
| db = r.db("lsd_dev") | |
| c = connection | |
| @coroutine | |
| def run_query(self, query): | |
| """ | |
| Run a query against RethinkDB database and yield a result. | |
| Convert cursor to list if neccesary | |
| :param query: an RQL query. | |
| """ | |
| result = query.run(self.c, time_format="raw") | |
| if isinstance(result, net.Cursor): | |
| result = [doc for doc in result] | |
| if len(result) == 1: | |
| result = result[0] | |
| return result | |
| class HelloHandler(BaseHandler): | |
| @coroutine | |
| def get(self, _id): | |
| hello = yield self.run_query(self.db.table("worlds").get(_id)) | |
| self.write("<html><body><center color=red><h1>Hello, %s</h1></center></body></html>") | |
| self.finish() | |
| routes = [ | |
| (r'/(.*)', HelloHandler) | |
| ] | |
| app = Application( | |
| handlers=routes | |
| ) | |
| if __name__ == '__main__': | |
| print("Routes:") | |
| for route in routes: | |
| print("%s -> %s" % (route[0], route[1].__name__)) | |
| app.listen(8080) | |
| IOLoop.instance().start() |
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