FlashExpress Open API

aid: flash-express-open-api
name: FlashExpress Open API
description: The FlashExpress Open API is the merchant-facing integration surface for Flash Express parcel
  logistics in Thailand. All calls are HTTPS POST with an application/x-www-form-urlencoded body and a
  JSON response envelope of code/message/data. Every request is authenticated with a merchant id (mchId),
  a random nonce string (nonceStr) and an uppercase SHA256 signature (sign) computed over the ASCII-sorted
  non-empty parameters joined with a merchant secret key issued by Flash Express support. The API covers
  warehouse listing, the Flash standard address/location tree, sub-account creation, order creation (including
  creation against a merchant-supplied tracking number), order modification and cancellation, single and
  batch parcel route tracking, delivered-proof retrieval, 100x180mm and 100x75mm label pre-print, freight-rate
  estimation, courier pickup notification scheduling and cancellation, and webhook subscription management.
humanURL: https://open-docs.flashexpress.com/
baseURL: https://open-api.flashexpress.com
tags:
- Shipping
- Logistics
- Parcel Tracking
- Orders
- Webhooks
- Cash on Delivery
properties:
- type: Documentation
  url: https://open-docs.flashexpress.com/
- type: APIReference
  url: https://open-docs.flashexpress.com/#api-reference
- type: Authentication
  url: authentication/flash-express-authentication.yml
- type: Conventions
  url: conventions/flash-express-conventions.yml
- type: ErrorCatalog
  url: errors/flash-express-error-codes.yml
- type: Webhooks
  url: asyncapi/flash-express-webhooks.yml
- type: DataModel
  url: data-model/flash-express-data-model.yml
- type: Sandbox
  url: sandbox/flash-express-sandbox.yml