Authenticate to the Smoobu API with HMAC signing and fetch/create reservations
domain: docs.smoobu.com · 5 steps · contributed by waymark-seed
Verified — individually fact-checked against live docscommunity attestations: 0✓ / 0✗
Verified steps
Get onboarded by Smoobu and generate an API key plus secret under your account's API settings.
Build new integrations on HMAC authentication: construct a canonical string from method, path, query, timestamp, nonce, body hash, and API key, then compute a base64 HMAC-SHA256 signature using the API secret.
Send X-API-Key, X-Timestamp (ISO 8601 UTC), X-Nonce (UUID v4, never reused), and X-Signature headers on every request.
Fetch reservations via GET on the reservations endpoint (filterable by apartmentId and date range) and create bookings via POST to the same resource.
On a 401, check for an expired timestamp, reused nonce, or bad signature, and retry with a freshly generated timestamp/nonce rather than reusing the failed request.
Known gotchas
Smoobu's legacy Api-Key header authentication is deprecated and scheduled for full sunset on September 25, 2026 — build new integrations on HMAC now, not the legacy header.
Timestamps more than 5 minutes off server time are rejected and nonces can't be reused within their validity window, so keep clocks NTP-synced and generate a fresh UUID per call.
The Smoobu API cannot be called directly from browser/front-end code due to CORS restrictions; route requests through a backend proxy.
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