HALOWERKHandelswerk
price change callback
One synchronous observation, not a recurring subscription. The caller schedules later checks and supplies its previous numeric offer price. Reuses Fetchwerk product extraction from actual HTML and returns raw price evidence. No conversion, no inferred price, no shipping-total guarantee and no JavaScript-only shop support. Source and callback require public IPv4 HTTPS on port443; every connection is DNS-checked and pinned, redirects rechecked (callbacks never redirect).
POST https://handel.halowerk.com/v1/price-change-callbackEingaben
| Feld | Typ | Pflicht | Beschreibung |
|---|---|---|---|
| url | string | Ja | |
| previous | object | Ja | |
| callback_url | string | Ja | |
| idempotency_key | string | Ja | |
| minimum_change | number | Nein | |
| direction | string | Nein |
Vollständiges Eingabeschema anzeigen
{
"type": "object",
"additionalProperties": false,
"required": [
"url",
"previous",
"callback_url",
"idempotency_key"
],
"properties": {
"url": {
"type": "string",
"maxLength": 2000
},
"previous": {
"type": "object",
"additionalProperties": false,
"required": [
"value",
"currency"
],
"properties": {
"value": {
"type": "number",
"minimum": 0,
"maximum": 1000000000
},
"currency": {
"type": "string",
"pattern": "^[A-Z]{3}$"
}
}
},
"callback_url": {
"type": "string",
"maxLength": 2000
},
"idempotency_key": {
"type": "string",
"minLength": 32,
"maxLength": 128,
"pattern": "^[A-Za-z0-9_-]+$"
},
"minimum_change": {
"type": "number",
"minimum": 0,
"maximum": 1000000000,
"default": 0
},
"direction": {
"type": "string",
"enum": [
"any",
"decrease",
"increase"
],
"default": "any"
}
}
}Veröffentlichtes Eingabebeispiel
{
"url": "https://books.toscrape.com/catalogue/a-light-in-the-attic_1000/index.html",
"previous": {
"value": 50.77,
"currency": "GBP"
},
"callback_url": "https://stack.halowerk.com/_top10-endspurt/callback",
"idempotency_key": "replace_with_32_character_random_event_key",
"minimum_change": 0.5,
"direction": "increase"
}Ergebnis & Dokumentation
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Quelle dieser Seite: der veröffentlichte HALOWERK-Katalog. Stand: 2026-11-01, 15:19 UTC.
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