API reference / Products

Get a product’s variants with on-hand stock per variant

GET/open/v1/products/{id}/variantsScope: inventory:read

Service Endpoint Seller token required

Environment	Base URL + Path
Production	`https://open.mallplus.ph/open/v1/products/{id}/variants`
Sandbox	`https://sandbox.open.mallplus.ph/open/v1/products/{id}/variants`

Common Signing and Seller Headers

Header	Type	Required	Rules	Description
X-MallPlus-Partner-Id	string	Yes	Issued client ID for the calling app.	Identifies the partner app whose secret signs the request.
X-MallPlus-Timestamp	integer	Yes	Unix timestamp in seconds; default acceptance window is 90 seconds.	Prevents replay outside the allowed signing window.
X-MallPlus-Signature-Version	string	Yes	Use `3` for HMAC v3.	Selects the request signing algorithm.
X-MallPlus-Nonce	string	Yes	32-64 lowercase hexadecimal characters, unique per request.	Replay-protection nonce included in the v3 signing base string.
X-MallPlus-Signature	string	Yes	HMAC-SHA256 over timestamp, client ID, method, path, canonical query, body hash, and nonce.	Cryptographic proof that the request was signed with the app secret.
X-MallPlus-Access-Token	string	Yes	Required when the operation says seller token required.	Seller OAuth access token returned by the authorization flow.
X-MallPlus-Seller-Id	string	Yes	Required when `X-MallPlus-Access-Token` is required.	Seller ID bound to the seller OAuth token.

Parameters

Name	In	Type	Required	Rules	Description
id	path	string	Yes	-	The product ID.

Request Body

This operation has no JSON request body.

Response Parameters

Field	Type	Rules	Description
success	boolean	-	Whether the request completed successfully.
data	array<ProductVariant>	-	Response or event payload for this schema.
data[]	ProductVariant	No additional properties	A single purchasable variant of a product.
data[].variant_id	string	-	Product variant ID associated with this value.
data[].sku	string	Nullable	Seller SKU.
data[].price	integer	Nullable	Integer amount in PHP centavos.
data[].stock_quantity	integer	Nullable	Available stock on hand at the default location
data[].options	array<object>	-	Variant option values (e.g. Size=M, Color=Black).
data[].options[]	object	No additional properties	One option of the variant, as a name/value pair.
data[].options[].name	string	Nullable	Option name, for example Size.
data[].options[].value	string	Nullable	Option value, for example M.
data[].dimensions	object	No additional properties	Package dimensions in centimetres.
data[].dimensions.length	number	-	Package length in centimetres.
data[].dimensions.width	number	-	Package width in centimetres.
data[].dimensions.height	number	-	Package height in centimetres.
data[].weight	number	-	Weight in grams
data[].images	array<string>	-	Variant image URLs, in display order.
data[].images[]	string	-	Publicly reachable https image URL.

Error Codes

HTTP Status	Schema	Description
400	ErrorResponse	Validation error, or a missing/malformed required signing header (BAD_REQUEST)
401	ErrorResponse	Unauthorized — invalid credentials, invalid signature, or expired timestamp (TIMESTAMP_EXPIRED)
403	ErrorResponse	Forbidden — insufficient scope
404	ErrorResponse	The requested resource does not exist or is not visible to the authenticated seller
429	ErrorResponse	The partner or endpoint rate limit has been exceeded
502	ErrorResponse	The upstream commerce service rejected the request or returned an invalid response
503	ErrorResponse	A required platform or upstream dependency is temporarily unavailable
504	ErrorResponse	The upstream commerce service did not respond before the platform timeout

Machine-readable codes are returned in error.code: ACCOUNT_LOCKED, APPROVE_FAILED, APP_LIMIT_REACHED, APP_NOT_FOUND, AUTHORIZATION_CODE_EXPIRED, AUTHORIZATION_REVOKED, AUTH_CODE_EXPIRED, AUTH_CODE_USED, BAD_REQUEST, CANCELLATION_ALREADY_PROCESSED, CANCELLATION_DEADLINE_EXCEEDED, CANCEL_FAILED, CANNOT_DELETE_ACCOUNT_WITH_APPS, CONCURRENT_MODIFICATION, CONFLICT, CREATE_FAILED, DISPUTE_FAILED, DUPLICATE, EMAIL_ALREADY_EXISTS, EMAIL_NOT_VERIFIED, FILE_TOO_LARGE, FORBIDDEN, HMAC_VERSION_DEPRECATED, IDEMPOTENCY_KEY_IN_PROGRESS, IDEMPOTENCY_KEY_REQUIRED, IDEMPOTENCY_KEY_REUSED, INTERNAL_ERROR, INVALID_AUTHORIZATION_CODE, INVALID_CREDENTIALS, INVALID_DEVELOPER_TYPE, INVALID_FILE_CONTENT, INVALID_FILE_TYPE, INVALID_JSON, INVALID_NONCE, INVALID_PATH, INVALID_PICKUP_DATE, INVALID_REFRESH_TOKEN, INVALID_REQUEST, INVALID_SIGNATURE, INVALID_STATE, INVALID_TRANSITION, INVALID_VERIFICATION_TOKEN, MAINTENANCE, MEMBER_PERMISSION_DENIED, MISSING_NONCE, NONCE_REUSED, NOT_FOUND, NOT_IMPLEMENTED, ORDER_NOT_CANCELLABLE, PAYLOAD_TOO_LARGE, PICKUP_DATES_UNAVAILABLE, PRODUCT_HAS_ACTIVE_ORDERS, PRODUCT_UNDER_REVIEW, PROFILE_ALREADY_SUBMITTED, PROFILE_TYPE_MISMATCH, PROXY_ERROR, RATE_LIMITED, REDIRECT_URL_MISMATCH, REFRESH_TOKEN_EXPIRED, REFRESH_TOKEN_REUSED, REJECT_FAILED, RETURN_ALREADY_PROCESSED, RETURN_DEADLINE_EXCEEDED, RE_AUTHORIZATION_REQUIRED, SANDBOX_LIMIT_REACHED, SELLER_TOKEN_REQUIRED, SERVICE_UNAVAILABLE, SESSION_EXPIRED, SHIPMENT_ALREADY_ARRANGED, SHIPMENT_NOT_ARRANGED, SHIPPING_LABEL_UNAVAILABLE, SHIP_FAILED, SIGNATURE_REPLAYED, SSRF_CHECK_FAILED, TEST_SHOP_LIMIT_REACHED, TIMESTAMP_EXPIRED, TOKEN_REVOKED, TOO_MANY_REQUESTS, UNAUTHORIZED, UPLOAD_ERROR, UPLOAD_NOT_CONFIGURED, UPSTREAM_ERROR, UPSTREAM_TIMEOUT, VALIDATION_ERROR, VERIFICATION_LINK_USED, VERIFICATION_TOKEN_EXPIRED, WEBHOOK_SUBSCRIPTION_EXISTS

Request Example

curl -X GET "https://open.mallplus.ph/open/v1/products/id_123/variants" \
  -H "X-MallPlus-Partner-Id: mp_partner_123" \
  -H "X-MallPlus-Timestamp: 1786924800" \
  -H "X-MallPlus-Signature-Version: 3" \
  -H "X-MallPlus-Nonce: 4f8b9a0c4d5e6f708192a3b4c5d6e7f8" \
  -H "X-MallPlus-Signature: <hex_hmac_sha256>" \
  -H "X-MallPlus-Access-Token: seller_access_token" \
  -H "X-MallPlus-Seller-Id: seller_123"

Response Example

{
  "success": true,
  "data": [
    {
      "variant_id": "variant_id_123",
      "sku": "example_sku",
      "price": 1,
      "stock_quantity": 1,
      "options": [
        {
          "name": "example_name",
          "value": "example_value"
        }
      ],
      "dimensions": {
        "length": 1,
        "width": 1,
        "height": 1
      },
      "weight": 1,
      "images": [
        "example_images"
      ]
    }
  ]
}