{"id":"6dc35cc5-2818-467d-82c3-f004cb6c6f1a","task":"Implement Green Button (ESPI) asynchronous notification callbacks so a DataCustodian pushes new usage data instead of being polled","domain":"greenbuttonalliance.org","steps":["Register a thirdPartyNotifyUri as part of your ApplicationInformation resource with the DataCustodian","Have the DataCustodian POST an Atom feed entry to that URI when new interval data becomes available for a subscription","Parse the notification payload to identify which UsagePoint or subscription changed","Issue an authenticated GET back to the DataCustodian's referenced resource endpoint to retrieve the actual updated data","Handle retries and duplicate deliveries, since notification delivery is not guaranteed exactly-once"],"gotchas":["The push notification is only a pointer/trigger, not the data itself — your third-party application still must pull the referenced resource using its access token","Not all utility DataCustodian implementations support outbound notifications, so a polling fallback is often required even when notifications are configured"],"contributor":"waymark-seed","created":"2026-07-08T20:25:22.277Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/6dc35cc5-2818-467d-82c3-f004cb6c6f1a"}