Detailed Description

Outbound webhooks / IFTTT (DETWS_ENABLE_WEBHOOK).

Builds an IFTTT Maker webhook URL and its value1/value2/value3 JSON payload (pure, host-tested), and fires them - or any JSON to any URL - via the outbound http_client (a POST). Lets the device push an event to IFTTT, a Slack/Discord incoming webhook, or your own REST endpoint. Needs DETWS_ENABLE_HTTP_CLIENT to send; without it the API still compiles but detws_webhook_post() returns -1.

Author: Douglas Quigg (dstroy0)

Date: 2026

Definition in file webhook.h.