forked from samuelcolvin/aiohttp-vs-sanic-vs-japronto
/
shared.py
44 lines (34 loc) · 1.1 KB
/
shared.py
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import random
import string
import asyncpg
PG_DSN_NO_DB = 'postgres://postgres:waffle@localhost:5432'
DB_NAME = 'foobar'
PG_DSN = PG_DSN_NO_DB + '/' + DB_NAME
DB_EXISTS = 'SELECT EXISTS (SELECT datname FROM pg_catalog.pg_database WHERE datname=$1)'
CREATE_TABLES = """\
DROP SCHEMA public CASCADE;
CREATE SCHEMA public;
CREATE TABLE users (
id SERIAL PRIMARY KEY,
name VARCHAR(63) NOT NULL
);
"""
async def setup_db(loop):
conn = await asyncpg.connect(dsn=PG_DSN_NO_DB)
try:
db_exists = await conn.fetchval(DB_EXISTS, DB_NAME)
if not db_exists:
await conn.execute('CREATE DATABASE {}'.format(DB_NAME))
finally:
await conn.close()
conn = await asyncpg.connect(dsn=PG_DSN)
try:
await conn.execute(CREATE_TABLES)
names = [
[''.join(random.choices(string.ascii_letters, k=random.randrange(10, 50)))]
for _ in range(1000)
]
await conn.executemany('INSERT INTO users (name) VALUES ($1);', names)
finally:
await conn.close()
return await asyncpg.create_pool(PG_DSN, loop=loop, max_size=100)