Minimal example of using Bluesky's API to post

bluesky_post.py

import requests
import os
from datetime import datetime, timezone

# Fetch the current time
# Using a trailing "Z" is preferred over the "+00:00" format
now = datetime.now(timezone.utc).isoformat().replace("+00:00", "Z")

# Required fields that each post must include
post = {
    "$type": "app.bsky.feed.post",
    "text": "Hey from a Python script using Bluesky's API. This is a post that isn't the usual Hello World post.",
    "createdAt": now,
}

# create a session
resp = requests.post(
    "https://bsky.social/xrpc/com.atproto.server.createSession",
    json={
        "identifier": os.environ["BLUESKY_HANDLE"],
        "password": os.environ["BLUESKY_APP_PASSWORD"]
    },
)
resp.raise_for_status()
session = resp.json()

# post!
resp = requests.post(
    "https://bsky.social/xrpc/com.atproto.repo.createRecord",
    headers={"Authorization": "Bearer " + session["accessJwt"]},
    json={
        "repo": session["did"],
        "collection": "app.bsky.feed.post",
        "record": post,
    },
)
resp.raise_for_status()