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@@ -0,0 +1,143 @@
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+import asyncio
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+import asyncpg
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+import os
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+import jinja2
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+import orjson
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+from logging import getLogger
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+from random import randint
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+from operator import itemgetter
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+from apidaora.asgi.app import asgi_app
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+from apidaora.asgi.responses import (
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+ JSON_RESPONSE, HTML_RESPONSE, PLAINTEXT_RESPONSE
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+)
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+from apidaora.asgi.router import Route, make_router
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+from apidaora.method import MethodType
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+
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+
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+logger = getLogger(__name__)
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+
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+
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+READ_ROW_SQL = 'SELECT "randomnumber" FROM "world" WHERE id = $1'
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+READ_ROW_SQL_TO_UPDATE = 'SELECT "id", "randomnumber" FROM "world" WHERE id = $1'
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+WRITE_ROW_SQL = 'UPDATE "world" SET "randomnumber"=$1 WHERE id=$2'
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+ADDITIONAL_ROW = [0, 'Additional fortune added at request time.']
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+
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+
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+async def setup_database():
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+ global connection_pool
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+ connection_pool = await asyncpg.create_pool(
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+ user=os.getenv('PGUSER', 'benchmarkdbuser'),
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+ password=os.getenv('PGPASS', 'benchmarkdbpass'),
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+ database='hello_world',
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+ host='tfb-database',
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+ port=5432
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+ )
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+
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+
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+def load_fortunes_template():
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+ path = os.path.join('templates', 'fortune.html')
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+ with open(path, 'r') as template_file:
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+ template_text = template_file.read()
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+ return jinja2.Template(template_text)
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+
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+
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+def get_num_queries(queries):
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+ try:
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+ query_count = int(queries[0])
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+ except (ValueError, TypeError):
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+ return 1
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+
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+ if query_count < 1:
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+ return 1
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+ if query_count > 500:
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+ return 500
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+ return query_count
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+
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+
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+connection_pool = None
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+sort_fortunes_key = itemgetter(1)
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+template = load_fortunes_template()
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+loop = asyncio.get_event_loop()
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+loop.run_until_complete(setup_database())
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+
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+
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+def json_serialization(path_args, query_dict, headers, body):
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+ return JSON_RESPONSE, orjson.dumps({'message': 'Hello, world!'})
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+
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+
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+async def single_database_query(path_args, query_dict, headers, body):
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+ row_id = randint(1, 10000)
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+
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+ async with connection_pool.acquire() as connection:
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+ number = await connection.fetchval(READ_ROW_SQL, row_id)
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+
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+ return JSON_RESPONSE, orjson.dumps(
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+ {'id': row_id, 'randomNumber': number}
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+ )
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+
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+
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+async def multiple_database_queries(path_args, query_dict, headers, body):
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+ num_queries = get_num_queries(query_dict.get('queries', 1))
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+ row_ids = [randint(1, 10000) for _ in range(num_queries)]
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+ worlds = []
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+
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+ async with connection_pool.acquire() as connection:
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+ statement = await connection.prepare(READ_ROW_SQL)
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+ for row_id in row_ids:
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+ number = await statement.fetchval(row_id)
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+ worlds.append(
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+ dict(
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+ id=row_id,
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+ randomNumber=number
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+ )
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+ )
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+
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+ return JSON_RESPONSE, orjson.dumps(worlds)
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+
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+
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+async def fortunes(path_args, query_dict, headers, body):
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+ async with connection_pool.acquire() as connection:
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+ fortunes = await connection.fetch('SELECT * FROM Fortune')
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+
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+ fortunes.append(ADDITIONAL_ROW)
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+ fortunes.sort(key=sort_fortunes_key)
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+ content = template.render(fortunes=fortunes).encode('utf-8')
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+ return HTML_RESPONSE, content
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+
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+
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+async def database_updates(path_args, query_dict, headers, body):
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+ worlds = []
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+ updates = set()
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+ queries = query_dict.get('queries', 1)
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+
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+ async with connection_pool.acquire() as connection:
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+ statement = await connection.prepare(READ_ROW_SQL_TO_UPDATE)
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+
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+ for _ in range(get_num_queries(queries)):
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+ record = await statement.fetchrow(randint(1, 10000))
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+ world = dict(
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+ id=record['id'], randomNumber=record['randomnumber']
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+ )
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+ world['randomNumber'] = randint(1, 10000)
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+ worlds.append(world)
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+ updates.add((world['id'], world['randomNumber']))
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+
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+ await connection.executemany(WRITE_ROW_SQL, updates)
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+
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+ return JSON_RESPONSE, orjson.dumps(worlds)
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+
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+
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+def plaintext(path_args, query_dict, headers, body):
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+ return PLAINTEXT_RESPONSE, b'Hello, world!'
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+
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+
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+routes = (
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+ Route('/json', MethodType.GET, json_serialization),
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+ Route('/db', MethodType.GET, single_database_query),
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+ Route('/queries', MethodType.GET, multiple_database_queries, has_query=True),
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+ Route('/fortunes', MethodType.GET, fortunes),
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+ Route('/updates', MethodType.GET, database_updates, has_query=True),
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+ Route('/plaintext', MethodType.GET, plaintext),
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+)
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+router = make_router(routes)
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+app = asgi_app(router)
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