| From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
|---|---|
| To: | Christophe Pettus <xof(at)thebuild(dot)com>, psycopg(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Overriding default adapters in psycopg |
| Date: | 2025-11-16 17:30:59 |
| Message-ID: | f91d116f-2f94-4e74-9ea8-b8cc4792bd86@aklaver.com |
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| Lists: | psycopg |
On 11/16/25 08:56, Christophe Pettus wrote:
> Hi!
>
> I am attempting to override the default adapters for JSON and JSONB in psycopg (3), but I am not quite sure how to go about it (I'm testing using orjson for serialization and deserialization). This doesn't appear to work:
>
>> class CyanJSONBDumper(Dumper):
>> def dump(self, obj):
>> return orjson.dumps(obj)
>>
>> psycopg.adapters.register_dumper("jsonb", CyanJSONBDumper)
Following:
https://www.psycopg.org/psycopg3/docs/api/abc.html#psycopg.abc.Dumper.dump
I believe it should be something like:
psycopg.adapters.register_dumper(<some_python_object>, CyanJSONBDumper)
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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