Pay

POST /v1/payments/pay Initiates a payment. Supports Mini Program cashier flows and agreement-based (recurring) payment scenarios.

Request Parameters

string

required

Payment product code assigned by Rebell (e.g., 51051000000011).Max length: 32 characters

string

required

Merchant-generated unique identifier (idempotency key).Max length: 64 characters

object

required

Payment amount. See Amount.

string

Authorization code.Max length: 128 characters

string

Payment expiry time in ISO 8601 format.

string

Merchant callback URL for payment result notifications.Max length: 1024 characters

string

URL to redirect the user to after payment.Max length: 1024 characters

string

Cashier notification URL.Max length: 1024 characters

object

Order details including merchant, buyer, and goods information. See Order.For Mini Program and in-app payment flows, order.env is required and must include:

terminalType: APP
osType: IOS or ANDROID

object

For agreement-based transactions. See Amount.

string

Service expiry date. Format: yyyy-MM-dd

string

Next scheduled payment date. Format: yyyy-MM-dd

string

JSON-formatted extension data.Max length: 2048 characters

Sub-field	Required	Description
`channelSource`	Required for Mini Program flows	Payment channel origin. Use `MERCHANT_MP` for Mini Program, `MERCHANT_APP` for native app, `MOBILE_H5` for mobile H5.
`supportMultiConfirm`	Required for auth-capture (`productCode` ending `...000012`)	Set to `true` to enable multi-confirmation auth-capture flow.
`miniAppId`	Optional	Mini Program app identifier.

Response Parameters

object

required

Standard result object with resultCode, resultStatus, resultMessage

string

Echo of the merchant-provided request identifier.

string

Wallet-generated unique payment ID.Max length: 64 characters

string

Payment completion time in ISO 8601 format.

object

Redirect instruction returned when the payment requires an H5 cashier step (e.g. direct pay and auth-capture flows with MOBILE_H5 channel source).

Sub-field	Type	Description
`method`	string	HTTP method for the redirect (usually `GET`)
`redirectUrl`	string	H5 cashier page URL. Include a `sign` query parameter signed by Rebell.

Double-encode the sign parameter before rendering redirectUrl as a QR code.The H5 cashier page decodes the URL once before parsing query parameters. Base64 characters in sign that are percent-encoded as %2B (+), %2F (/), or %3D (=) become +, /, = after that decode — but + is then parsed as a space, causing a PUB_VERIFY_SIGN_ERROR.Fix: replace those characters with their double-percent equivalents so they survive the H5 decode intact:

function doubleEncodeSign(url) {
  return url.replace(/([?&]sign=)([^&#]*)/, (_, prefix, signVal) =>
    prefix + signVal
      .replace(/%2B/gi, '%252B')
      .replace(/%2F/gi, '%252F')
      .replace(/%3D/gi, '%253D')
      .replace(/\+/g, '%252B')
  );
}

const safeUrl = doubleEncodeSign(redirectActionForm.redirectUrl);
await QRCode.toCanvas(canvas, safeUrl, { width: 300 });

This is only needed when embedding the URL in a QR code. For direct browser redirects (window.location.href = redirectUrl), use the URL as-is.

Result Codes

resultStatus	resultCode	Description
`S`	`SUCCESS`	Payment successful
`A`	`ACCEPT`	Accepted, further action required
`F`	`PARAM_ILLEGAL`	Invalid parameters
`F`	`PROCESS_FAIL`	Processing failed
`F`	`ACCESS_DENIED`	Access denied
`F`	`USER_NOT_EXIST`	User does not exist
`F`	`CURRENCY_NOT_SUPPORT`	Currency not supported
`F`	`PAYMENT_AMOUNT_EXCEED_LIMIT`	Payment amount exceeds limit
`F`	`USER_AMOUNT_EXCEED_LIMIT`	User amount exceeds limit
`F`	`REPEAT_REQ_INCONSISTENT`	Duplicate request with inconsistent data
`F`	`AUTH_CODE_ALREADY_USED`	Auth code already used
`F`	`PARTNER_STATUS_ABNORMAL`	Partner status abnormal
`F`	`USER_STATUS_ABNORMAL`	User status abnormal
`F`	`PARTNER_NOT_EXIST`	Partner does not exist
`F`	`INVALID_ACCESS_TOKEN`	Access token is invalid
`F`	`RISK_REJECT`	Transaction rejected by risk engine
`U`	`UNKNOWN_EXCEPTION`	Unknown error occurred
`U`	`ORDER_AMOUNT_EXCEED_CONTRACT_LIMIT`	Order amount exceeds contract limit
`U`	`CONTRACT_DEFAULT_PAY_METHOD_INVALID`	Default payment method invalid

OpenAPIs

Message Transmission Security

OpenAPIs for Merchants

Reference

Request Parameters

Response Parameters

Result Codes

​Request Parameters

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Request Parameters

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