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Added JSON decoder #18

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Added JSON decoder #18

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10 changes: 10 additions & 0 deletions src/opal_fetcher_postgres/provider.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
"""
from typing import Optional, List

import json
import asyncpg
from asyncpg.transaction import Transaction
from asyncpg.exceptions import DataError
Expand Down Expand Up @@ -139,6 +140,15 @@ async def __aenter__(self):
self._connection: asyncpg.Connection = await asyncpg.connect(
dsn, **connection_params
)

# add support for json decoder
await self._connection.set_type_codec(
'json',
encoder=json.dumps,
decoder=json.loads,
schema='pg_catalog'
)

# start a readonly transaction (we don't want OPAL client writing data due to security!)
self._transaction: Transaction = self._connection.transaction(readonly=True)
await self._transaction.__aenter__()
Expand Down