1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
#!/usr/bin/python
import asyncio
import os
import logging
import database
import crawler
db = database.Database()
async def crawl_region(region):
"""Get matches from a region and insert them
until the DB is up to date. Repeat after five minutes."""
api = crawler.Crawler()
# fetch until exhausted
while True:
try:
last_match_update = (await db.select(
"""
SELECT data->'attributes'->>'createdAt' AS created
FROM match
WHERE data->'attributes'->>'shardId'='""" + region + """'
ORDER BY data->'attributes'->>'createdAt' DESC LIMIT 1
""")
)[0]["created"]
except:
last_match_update = "2017-02-05T01:01:01Z"
logging.info("%s: fetching matches since %s",
region, last_match_update)
# wait for http requests
matches = await api.matches_since(last_match_update,
region=region,
params={"page[limit]": 50})
if len(matches) > 0:
logging.debug("%s: %s objects", region, len(matches))
else:
logging.debug("%s: no objects, stopping", region)
break
# wait for db inserts
await db.upsert(matches, True)
logging.debug("%s: going to sleep", region)
await asyncio.sleep(300)
asyncio.ensure_future(crawl_region(region)) # restart self
async def start_crawlers():
"""Start the tasks that pull the data."""
# TODO: insert API version (force update if changed)
# TODO: create database indices
for region in ["na", "eu"]:
# fire workers
asyncio.ensure_future(crawl_region(region))
logging.basicConfig(level=logging.DEBUG)
loop = asyncio.get_event_loop()
loop.run_until_complete(db.connect(
host=os.environ["POSTGRESQL_HOST"],
port=os.environ["POSTGRESQL_PORT"],
user=os.environ["POSTGRESQL_USER"],
password=os.environ["POSTGRESQL_PASSWORD"],
database=os.environ["POSTGRESQL_DB"]
))
loop.run_until_complete(
start_crawlers()
)
loop.run_forever()
|
