Designing resends, ordering, and idempotency
What counts as success, the retry rules (1 min, 10 min, 1 h, four attempts), ordering and lost events, and dropping duplicates by X-RR-Delivery.
Signature verification and security
How X-RR-Signature is computed, verification code for Node.js, Python and C#, guarding against replays, and how to replace a webhook secret.
Monitoring and handling failures
Read a webhook's active flag, last delivery time and delivery log, notice when it has switched itself off, recover, and fill the gap from the API.
Receive new sales by webhook and post them to Slack
Register a receipt.created webhook, verify its signature and drop duplicates in Node.js, and post each new sale to a Slack channel.
Webhook is not being delivered
When a webhook does not arrive: narrow it down with a test send and the delivery log, then check the active flag, subscribed events, connection and signature.
Webhook overview
Which webhook events are actually sent, what the request and signature headers look like, how duplicates, order and lost events behave, and when to use the API.
How to register a Webhook
Register a webhook in the developer portal or through the API, choose events that are actually sent, run a test send, and change, pause or delete a webhook.
Rate limiting and throttling
Which ReceiptRoller API endpoints limit requests and by how much, what a 429 looks like, and how to pace and retry your client's calls.
Ad logs and effectiveness-measurement data
Explains the structure of, and how to retrieve, the campaign, coupon, ad-delivery-log, and purchase-attribution measurement data that ReceiptRoller handles.
Available data domains
A one-page overview of the data domains you can retrieve from the ReceiptRoller developer portal. Summarizes the contents, retrieval methods, and required scopes for each domain — transactions, products, inventory, orders, customers, coupons, SNS, advertising, individual user data, and more.
Wallet App: Guide to Fetching a User's Receipts via OAuth
Explains how to fetch a user's Receipt Roller purchase receipts, with their consent, from a wallet-style app such as iOS, Android, or a LINE Mini App. Covers OAuth 2.0 authentication, the receipts API, and Webhook integration.
What You Can Do with the Developer Portal
An overview of what the ReceiptRoller developer portal lets you do. Combine data retrieval and operations via the REST API with real-time event delivery via Webhooks to connect store and user data from external systems.
Connect an AI agent to ReceiptRoller over MCP
Connect Claude as an MCP connector, then build your own MCP client with dynamic client registration, PKCE and JSON-RPC calls over HTTP.
Your first API call: from app registration to listing transactions
Get a token with the OAuth authorization code flow and PKCE, confirm the business account, list its transactions, and refresh the token.
Using the Products API
How to list, read, create, patch, replace, soft-delete and upload cover images for products with the Products API (/api/v1/products), with exact field names.
Obtaining and refreshing an access token
How to obtain and refresh access tokens (8 hours) and refresh tokens (30 days), how refresh tokens rotate, and when tokens stop working.
Sync your product catalogue with ReceiptRoller
Build a Node.js script that reads a local CSV or JSON file, matches products by SKU, and creates or patches them through the Products API.
Using the Reservations API
How to read, create, change, move and update the status of reservations, generate slots, and read menus, settings, tables and monthly counts.
API Authentication Guide
How to authenticate with the OAuth 2.0 authorization code flow: authorize parameters, the consent screen, token exchange and revocation, errors and scopes.
Account linking and merging API (token exchange, /me/identities, /account/merge)
How native apps and the LINE mini app sign in with a LINE, Apple or Google ID token, add and remove sign-in methods, and merge two accounts — the endpoints, the proof object and the error codes.