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Fix Teams 413 error: add charset=utf-8 to Content-Type header and retry on 413 #2162

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Fix Teams 413 error: add charset=utf-8 to Content-Type header and retry on 413 #2162

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a715f67
Fix Teams 413 error: add charset=utf-8 to Content-Type header and ret…
devin-ai-integration[bot] Mar 20, 2026
49a3dbd
Address review: truly minimal fallback card, add request timeouts
devin-ai-integration[bot] Mar 20, 2026
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25 changes: 23 additions & 2 deletions elementary/messages/messaging_integrations/teams_webhook.py
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
Channel: TypeAlias = Optional[str]
ONE_SECOND = 1
TEAMS_PAYLOAD_SIZE_LIMIT = 27 * 1024
REQUEST_TIMEOUT_SECONDS = (3.05, 10)


class TeamsWebhookHttpError(MessagingIntegrationError):
Expand Down Expand Up @@ -62,7 +63,8 @@ def _truncation_notice_item() -> Dict[str, Any]:

def _minimal_card(card: dict) -> dict:
return {
**card,
"type": "AdaptiveCard",
"version": card.get("version", "1.5"),
"body": [
{
"type": "TextBlock",
Expand Down Expand Up @@ -107,9 +109,28 @@ def send_adaptive_card(webhook_url: str, card: dict) -> requests.Response:
response = requests.post(
webhook_url,
json=payload,
headers={"Content-Type": "application/json"},
headers={"Content-Type": "application/json; charset=utf-8"},
timeout=REQUEST_TIMEOUT_SECONDS,
)
response.raise_for_status()
if (
response.status_code == HTTPStatus.OK
and len(response.text) > 1
and "413" in response.text
):
logger.warning(
"Teams webhook returned 413 in response body (payload size issue), "
"retrying with minimal card"
)
minimal = _minimal_card(card)
payload = _build_payload(minimal)
response = requests.post(
webhook_url,
json=payload,
headers={"Content-Type": "application/json; charset=utf-8"},
timeout=REQUEST_TIMEOUT_SECONDS,
)
response.raise_for_status()
if response.status_code == HTTPStatus.ACCEPTED:
logger.debug(
f"Got {HTTPStatus.ACCEPTED} response from Teams webhook, assuming success"
Expand Down
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