API Authentication Guide
Explains how to authenticate with the ReceiptRoller API using the OAuth 2.0 authorization code flow.
What is application registration
Explains the concept of ReceiptRoller application registration. Registering an app as an OAuth client issues a client ID, secret, and redirect URI, letting you start API and Webhook integrations.
Contacting support (technical integration)
Explains the types of support available to ReceiptRoller developers, a checklist to run before contacting support, and a template of the information to attach so issues get resolved efficiently.
Signature verification and security
Explains how ReceiptRoller Webhook HMAC-SHA256 signature verification works, sample verification code (Node.js / Python / C#), replay-attack countermeasures, and how to manage secrets safely.
ProductDto reference
A complete field reference for ProductDto, ReceiptRoller's product master (PIM). It covers the structure, including catalog sync from a POS (Square), cost price, per-store pricing, variants, and pre-orders.
Monitoring and handling failures
Explains how to read the ReceiptRoller Webhook delivery history, the metrics to monitor and how to design alerts, redelivering dead letters, and common failure patterns and recovery procedures.
StaffDto reference
A complete field reference for StaffDto, ReceiptRoller's staff (employee) master. It covers the structure, including the linkage with POS (Square Team / Smaregi), store assignment, and employment type.
Posting a Question to the Community
Explains how to post a question to the developer community, and the review-approval and notification-email flow after posting.
Creating a new app
Explains the concrete steps to register a new app (OAuth client) in the ReceiptRoller developer portal. Covers the input fields, validation, the post-creation credentials display, and common errors.
Ledger and billing-related data (scope of coverage)
Explains the scope of the ledger and billing-related data ReceiptRoller handles, tax reports, qualified-invoice support, and guidance for integrating with accounting software.
SNS Webhook bypass (forwarding Webhooks from external SNS such as LINE)
Explains the mechanism, setup, signature handling, and cautions of the "SNS Webhook bypass" feature, which forwards Webhooks ReceiptRoller receives from SNS platforms such as LINE to a developer app, with the store's consent.
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.
Webhook overview
Explains the main event types delivered by ReceiptRoller Webhooks, why to use Webhooks instead of polling, the delivery format (HTTPS POST + JSON), and how to think about delivery guarantees.
Store-facing: Guide to Issuing Digital Receipts from Your Own App and Getting Webhook Notifications
Explains how a store or brand issues digital receipts to customers from its own app and receives real-time notifications via Webhooks. Covers app registration, OAuth, Webhook setup, and signature verification.
Purchase and receipt data integration
Explains the structure of the purchase and receipt data ReceiptRoller handles, how to retrieve it, related scopes, Webhooks, and common use cases.
Using the in-store media display API (Display API)
An overview of ReceiptRoller's in-store Android display API (/api/v1/displays/*) and the steps for pairing, heartbeat, playlist retrieval, and impression reporting. An introductory guide for building an app that plays a media loop on an Android kiosk or in-store signage device.
PosTransactionDto specification — field reference for transaction data
A complete field reference for PosTransactionDto, the canonical model for the transaction data ReceiptRoller handles. For each category — identifiers, dates, amounts, line items, payments, staff, status, and CRM linkage — it summarizes the field names, types, meanings, and how each POS vendor populates them. A reference for developers and external-system integrators. Also referenced from the Smaregi and Square mapping articles.