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n8n-nodes-selectwin
Official Selectwin community node for n8n — operate the Selectwin
payments API (PIX, card, boleto, customers, products, payment links, subscriptions) and
react to webhooks, without writing code.
Status: early / work in progress (
0.1.0). Two nodes: Selectwin (API operations)
and Selectwin Trigger (signed webhook events).
What it is
- Selectwin node — declarative API node covering the curated day-to-day surface of the
API: create charges, manage customers/products/payment links, read balance, receivables
and withdrawals. - Selectwin Trigger node — registers a webhook on the API for the events you pick,
verifies every delivery's signature (constant-time, replay-proof) and emits the full
event envelope into your workflow. - Zero runtime dependencies. Auth is your SelectKey; every POST carries an automatic
X-Idempotency-Key.
Install
n8n GUI (community nodes)
- In n8n go to Settings → Community Nodes → Install.
- Enter
n8n-nodes-selectwinand confirm.
Manual (self-hosted)
cd ~/.n8n/nodes # your n8n custom/community nodes folder
npm install n8n-nodes-selectwin
Restart n8n afterwards.
Credentials
Create a Selectwin API credential:
| Field | Value |
|---|---|
| API Key | your SelectKey — sk_test_… (sandbox) or sk_live_… (production) |
| Base URL | https://api.selectwin.io (default; leave as is) |
The environment is decided by the key prefix, not the URL. The credential test callsGET /v1/balance. Requests authenticate with the selectkey header.
The Selectwin node
| Resource | Operations |
|---|---|
| Transaction | Create (PIX / boleto / saved card, customer by ID or inline), Get, Get Many (status/method/customer filters), Refund, Capture |
| Customer | Create, Get, Get Many, Update, Delete |
| Product | Create, Get, Get Many, Update, Delete |
| Variant | Get, Get Many, Get Many by Product |
| Payment Link | Create (the response's accessFullUrl is the shareable URL), Get, Get Many, Update, Delete |
| Checkout Session | Create (JSON body pass-through), Get, Get Many |
| Subscription | Get, Get Many, Cancel, Pause, Resume |
| Coupon | Validate, Get, Get Many |
| Balance | Get, Get History |
| Receivable | Get, Get Many |
| Withdrawal | Get, Get Many |
List operations page with Limit/Offset; the API answers with a{ data[], hasMore, total, page } envelope.
The Selectwin Trigger
Pick one or more events from the full API catalog (transaction.approved,transaction.refunded, subscription.canceled, checkout.session.completed, …). On
activation the node registers the webhook via POST /v1/webhooks and stores the returned
secret; on deactivation it deletes it.
Every delivery is verified before your workflow runs:
x-selectwin-signature-v1: t=<unix>,v1=<hmac-sha256-hex("<t>.<body>", secret)>—
preferred, replay-proof (default tolerance 300 s, configurable under Options);x-selectwin-signature: sha256=<hmac-sha256-hex(body, secret)>— legacy fallback.
Verification runs over the raw received bytes with constant-time comparison. Invalid or
unsigned deliveries are rejected with 401 and never reach your workflow.
Custom API Call
The Selectwin API credential is also usable as a predefined credential type in n8n's
built-in HTTP Request node — an escape hatch to reach any endpoint of the API that the
curated node does not cover yet.
Development
npm install
npm run typecheck # tsc --noEmit
npm test # vitest (webhook signature verification)
npm run build # tsc + copy node icons into dist/
Roadmap
- Auto-pagination (Return All) for list operations.
- Subscription create (catalog-strict model needs recurring variants).
- Withdrawal create (financial write — gated for a later phase).
- Submission as an n8n verified community node.