BadRequestError createdAt must be an valid atproto datetime (both RFC-3339 and ISO-8601)

[EllieTheYeen]

I have started to get the following error whenever I try to post anything at all. I have not made any change in the code but both reposts and normal posts will throw the following error:

BadRequestError(Response(success=False, status_code=400, content=XrpcError(error='InvalidRequest', message='Invalid app.bsky.feed.repost record: createdAt must be an valid atproto datetime (both RFC-3339 and ISO-8601)'), headers=Headers({'date': 'Tue, 05 Dec 2023 01:34:08 GMT', 'content-type': 'application/json; charset=utf-8', 'content-length': '148', 'connection': 'keep-alive', 'x-powered-by': 'Express', 'access-control-allow-origin': '*', 'ratelimit-limit': '5000', 'ratelimit-remaining': '4997', 'ratelimit-reset': '1701743648', 'ratelimit-policy': '5000;w=3600', 'etag': 'W/"94-6peGxeMN8ENNthf4a1NzrR9XOkg"', 'vary': 'Accept-Encoding'})))

I think Bsky has changed something that causes this issue

[EllieTheYeen]

Noticed that this might be something I did wrong as I had used

datetime.datetime.now().isoformat()

instead of

datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%I:%SZ")

[DavidBuchanan314]

By the way, here's how I generate my timestamps, which perfectly matches the output of JS's Date.prototype.toISOString():

import datetime
datetime.datetime.now(tz=datetime.timezone.utc).replace(tzinfo=None).isoformat(timespec="milliseconds") + "Z"

Also by the way, datetime.utcnow() is deprecated and will be removed in a future python version, see https://blog.miguelgrinberg.com/post/it-s-time-for-a-change-datetime-utcnow-is-now-deprecated

[EllieTheYeen]

That is really useful to know thanks

[MarshalX]

@EllieTheYeen The AT Protocol SDK provides and uses this method internally. Doesn't it feet your needs?

from atproto import Client
client = Client()
print(client.get_current_time_iso())

[EllieTheYeen]

Good to know. I had done some wrong thing internally in my code that generated the date so that is what caused the issue and not the code here