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segment-webhook-sink.py
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segment-webhook-sink.py
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from dotenv import load_dotenv
load_dotenv()
from flask import Flask, request, Response
from icedb import IceDB
import json
from datetime import datetime
import os
import duckdb
import duckdb.typing as ty
app = Flask(__name__)
def get_partition_range(table: str, syear: int, smonth: int, sday: int, eyear: int, emonth: int, eday: int) -> list[str]:
return ['table={}/y={}/m={}/d={}'.format(table, '{}'.format(syear).zfill(4), '{}'.format(smonth).zfill(2), '{}'.format(sday).zfill(2)),
'table={}/y={}/m={}/d={}'.format(table, '{}'.format(eyear).zfill(4), '{}'.format(emonth).zfill(2), '{}'.format(eday).zfill(2))]
def createSegmentIce():
return IceDB(
partitionStrategy=part_segment,
sortOrder=['event', 'ts'],
pgdsn=os.environ["DSN"],
s3bucket=os.environ["S3_BUCKET"],
s3region=os.environ["S3_REGION"],
s3accesskey=os.environ["S3_ACCESS_KEY"],
s3secretkey=os.environ["S3_SECRET_KEY"],
s3endpoint=os.environ["S3_ENDPOINT"],
create_table=os.environ["CREATE_TABLE"] == "1" if "CREATE_TABLE" in os.environ else False,
formatRow=format_segment,
duckdb_ext_dir='/app/duckdb_exts',
unique_row_key='messageId'
)
# TODO: add dict-based caching for this because of duckdb double-triggering with read_parquet
def get_files(table: str, syear: int, smonth: int, sday: int, eyear: int, emonth: int, eday: int) -> list[str]:
part_range = get_partition_range(table, syear, smonth, sday, eyear, emonth, eday)
print('part range', part_range)
ice = createSegmentIce()
res = ice.get_files(
part_range[0],
part_range[1]
)
print('got files', res)
ice.close()
return res
def auth_header() -> bool:
if "AUTH" not in os.environ:
return True
authSecret = os.environ["AUTH"]
authHeader = request.headers.get('Authorization')
try:
return authSecret == authHeader.split('Bearer ')[1]
except Exception as e:
return False
@app.route('/hc')
def hello():
return 'y'
@app.route('/query', methods=['POST'])
def query():
if not auth_header():
return 'invalid auth', 401
content_type = request.headers.get('Content-Type')
if (content_type == 'application/json'):
j = request.get_json()
else:
return 'not json', 400
ddb = duckdb.connect(":memory:")
ddb.execute("install httpfs")
ddb.execute("load httpfs")
ddb.execute(f"SET s3_region='{os.environ['S3_REGION']}'")
ddb.execute(f"SET s3_access_key_id='{os.environ['S3_ACCESS_KEY']}'")
ddb.execute(f"SET s3_secret_access_key='{os.environ['S3_SECRET_KEY']}'")
ddb.execute(f"SET s3_endpoint='{os.environ['S3_ENDPOINT'].split('://')[1]}'")
ddb.execute(f"SET s3_use_ssl={'false' if 'http://' in os.environ['S3_ENDPOINT'] else 'true'}")
ddb.execute("SET s3_url_style='path'")
ddb.create_function('get_files', get_files, [ty.VARCHAR, ty.INTEGER, ty.INTEGER, ty.INTEGER, ty.INTEGER, ty.INTEGER, ty.INTEGER], list[str])
ddb.sql('''
create macro if not exists get_f(tabl:='segment', start_year:=2023, start_month:=1, start_day:=1, end_year:=2023, end_month:=1, end_day:=1) as get_files(tabl, start_year, start_month, start_day, end_year, end_month, end_day)
''')
ddb.sql('''
create macro if not exists icedb(tabl:='segment', start_year:=2023, start_month:=1, start_day:=1, end_year:=2023, end_month:=1, end_day:=1) as table select * from read_parquet(get_files(tabl, start_year, start_month, start_day, end_year, end_month, end_day), hive_partitioning=1, filename=1)
''')
try:
print('querying..')
result = ddb.sql(j['query'])
print('got res!')
if "format" not in j:
return str(result)
else:
if j['format'] == "csv":
result = result.df().to_csv(index=False)
return Response(result, content_type='text/csv')
if j['format'] == "pretty":
return str(result)
return result
except duckdb.IOException as e:
if "Parquet reader needs at least one file to read" in str(e):
# TODO: give empty CSV with known headers
return "no data in time range!", 404
else:
raise e
except Exception as e:
raise e
@app.route('/j', methods=['POST'])
def process_json():
if not auth_header():
return 'invalid auth', 401
content_type = request.headers.get('Content-Type')
if (content_type == 'application/json'):
j = request.get_json()
ice = createSegmentIce()
if isinstance(j, dict):
inserted = ice.insert([j])
ice.close()
return inserted
if isinstance(j, list):
inserted = ice.insert(j)
ice.close()
return inserted
return 'bad JSON!'
else:
return 'Content-Type not supported!'
def part_segment(row: dict) -> str:
rowtime = datetime.fromisoformat(row['timestamp'])
# the `table=segment/` prefix makes it effectively the `segment` table
part = 'table=segment/y={}/m={}/d={}'.format('{}'.format(rowtime.year).zfill(4), '{}'.format(rowtime.month).zfill(2), '{}'.format(rowtime.day).zfill(2))
return part
def format_segment(row: dict) -> dict:
final_row = {
"ts": datetime.fromisoformat(row['timestamp']).timestamp()*1000, # convert to ms
"event": "", # replaced below
"user_id": row['userId'],
"og_payload": json.dumps(row)
}
if row['type'] == 'page':
final_row['event'] = "page.{}".format(row["name"])
elif row["type"] == "identify":
final_row['event'] = "identify"
elif row["type"] == "track":
final_row["event"] = row["event"]
return final_row
# Post a segment event directly
@app.route('/segment/insert', methods=['POST'])
def insert_segment():
if not auth_header():
return 'invalid auth', 401
content_type = request.headers.get('Content-Type')
if (content_type == 'application/json'):
j = request.get_json()
ice = createSegmentIce()
if isinstance(j, dict):
inserted = ice.insert([j])
ice.close()
return inserted
if isinstance(j, list):
inserted = ice.insert(j)
ice.close()
return inserted
return 'bad JSON!'
else:
return 'Content-Type not supported!'
@app.route('/segment/merge', methods=['POST'])
def merge_files():
if not auth_header():
return 'invalid auth', 401
ice = createSegmentIce()
res = ice.merge_files(10_000_000, partition_prefix='table=segment/')
ice.close()
return str(res)
if __name__ == '__main__':
app.run(debug=True if "DEBUG" in os.environ and os.environ['DEBUG'] == '1' else False, port=int(os.environ['PORT']) if "PORT" in os.environ else 8090, host='0.0.0.0')