66 lines
2.0 KiB
Python
66 lines
2.0 KiB
Python
""" To run this example you need additional aiopg package
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"""
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import os
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import asyncio
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import uvloop
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import aiopg
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from sanic import Sanic
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from sanic.response import json
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asyncio.set_event_loop_policy(uvloop.EventLoopPolicy())
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database_name = os.environ['DATABASE_NAME']
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database_host = os.environ['DATABASE_HOST']
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database_user = os.environ['DATABASE_USER']
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database_password = os.environ['DATABASE_PASSWORD']
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connection = 'postgres://{0}:{1}@{2}/{3}'.format(database_user,
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database_password,
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database_host,
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database_name)
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loop = asyncio.get_event_loop()
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async def get_pool():
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return await aiopg.create_pool(connection)
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app = Sanic(name=__name__)
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pool = loop.run_until_complete(get_pool())
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async def prepare_db():
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""" Let's create some table and add some data
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"""
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async with pool.acquire() as conn:
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async with conn.cursor() as cur:
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await cur.execute('DROP TABLE IF EXISTS sanic_polls')
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await cur.execute("""CREATE TABLE sanic_polls (
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id serial primary key,
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question varchar(50),
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pub_date timestamp
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);""")
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for i in range(0, 100):
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await cur.execute("""INSERT INTO sanic_polls
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(id, question, pub_date) VALUES ({}, {}, now())
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""".format(i, i))
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@app.route("/")
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async def handle(request):
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async with pool.acquire() as conn:
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async with conn.cursor() as cur:
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result = []
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await cur.execute("SELECT question, pub_date FROM sanic_polls")
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async for row in cur:
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result.append({"question": row[0], "pub_date": row[1]})
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return json({"polls": result})
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if __name__ == '__main__':
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loop.run_until_complete(prepare_db())
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app.run(host='0.0.0.0', port=8000, loop=loop)
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