create_forex_trade
Call this interface to initiate a website payment request.
Request
Service address
Environment | HTTPS request URL |
Production environment | |
Test environment |
Request parameters
Parameter | Description |
Basic parameter | |
service String | Interface name
|
partner String(16) | The partner ID that is assigned by Alipay to identify an Alipay account. The partner ID is composed of 16 digits and begins with 2088.
|
_input_charset String | The charset with which the request data are encoded. GBK and UTF-8 are supported.
|
sign_type String | Sign type. RSA, RSA2 and MD5 are supported. Use uppercase.
|
sign String | Sign value
|
notify_url URL(200) | The URL for receiving asynchronous notifications after the payment is completed.
|
return_url URL(200) | After the payment is completed, the web page is redirected to this URL.
|
Business parameter | |
subject String(256) | Brief description of the transaction. Special characters are not supported. Note: The value of this field will be displayed to customers.
|
body String(400) | Detailed description about the goods. Special characters are not supported.
|
out_trade_no String(64) | The unique transaction ID that is assigned by the merchant. If the ID is duplicated with the out_trade_no of a previous transaction, the payment fails and an error message is returned to indicate the payment is duplicated.
|
currency String(10) | The settlement currency that the merchant specifies in the contract. Use upper case. For more information about supported currencies, see Supported Currencies.
|
total_fee Number(9,2) | The transaction amount, which is a floating number in the range 0.01 - 1000000.00. If total_fee is not null, the transaction uses a currency specified by the currency parameter. When the currency is not CNY and the product price is to be calculated in RMB based on the exchange rate.
|
rmb_fee Number(9,2) | The transaction amount in RMB, which is a floating number in the range 0.01 - 1000000.00. This parameter is used to replace the total_fee parameter when merchants want to price their product in RMB. If total_fee is used, don't specify the rmb_fee parameter because they are mutually exclusive.
|
timeout_rule String(10) | This parameter specifies the valid time from login to completion. The default value is 12h. Contact Alipay Technical Support if you need to use other values.
|
order_gmt_create Date | The time when the payment transaction is created. This field is used together with order_valid_time to control the transaction valid time. The format is yyyy-MM-dd HH:mm:ss. Use Beijing time to synchronize with Alipay system.
|
order_valid_time String(5) | Order valid time in seconds, with a maximum value of 2592000. This field can only be used with the order_gmt_create field to control the valid time. The payment transaction is to be closed after the order valid time from the order creation time specified by the order_gmt_create field.
|
supplier String(16) | Supplier name, which is used for page display. |
secondary_merchant_id String(64) | The unique ID assigned by the partner to identify a secondary merchant. The ID can contain letters, numbers, and underscores. Note: This field is required for acquirers and system integrators with secondary merchants, and is not required for merchants that are directly integrated with Alipay.
|
secondary_merchant_name String(64) | Registration legal name of the secondary merchant, shown in the Alipay Wallet and the reconciliation file to identify a secondary merchant. Note: This field is required for acquirers and system integrators with secondary merchants, and is not required for merchants that are directly integrated with Alipay.
|
secondary_merchant_industry String(4) | Industry classification identifier of the secondary merchant, which is assigned by Alipay. For more information about the MCC code, see MCC list. Note: This field is required for acquirers and system integrators with secondary merchants, and is not required for merchants that are directly integrated with Alipay.
|
refer_url URL(200) | The URL of the merchant website homepage. If the merchant doesn't have a website, the merchant app download address can be used for this field. Note: This field is required for merchants that are directly integrated with Alipay, and is not required for acquirers.
|
product_code String(32) | Product code of the Alipay product that you use, with a value of NEW_OVERSEAS_SELLER for this interface. Note: This field is not required for the old cross-border website payment product. Contact technical support if you are not sure about your product type.
|
split_fund_info String(1600) | Split fund information, which is in the JSON format. For more details, see Split detail info. |
trade_information String(6000) | Information about the trade industry. See trade_information for details. Note: This field is required for merchants that are directly integrated with Alipay, and is optional for acquirers.
|
Note:
The pricing currency depends on which parameter used for transaction amount.
When the total_fee is used, the pricing currency and settlement currency would be the same.
trade_information
Parameter | Description |
business_type String | Business type. 5 types are supported: 1: Hotel 2: AIR 3: Overseas study consulting 4: Sales of goods 5: Others, including all the other business types that do not fall into the above 4 categories. For example, mobile data service recharge, airport pick up service, etc. If more than one type is involved, separate type values with vertical bar (|).
|
hotel_name String | Hotel name that consists of numbers, letters, spaces, and special characters including ,.<>()[]/\-,. If more than one hotel name exists, separate values with vertical bar (|). Specify this field only when business_type is 1 (Hotel).
|
check_in_time Date | Check-in time. Format: yyyy-MM-dd. Timezone: GMT +8. Specify this field only when business_type is 1 (Hotel).
|
check_out_time Date | Check-out time. Format: yyyy-MM-dd. Timezone: GMT +8. Specify this field only when business_type is 1 (Hotel).
|
flight_number String | Flight number. If flight transfer exists, separate flight numbers with vertical bar (|). Specify this field only when business_type is 2 (AIR).
|
departure_time Date | Departure time. Format: yyyy-MM-dd HH:mm Timezone: GMT +8. If flight transfer exists, separate time values with vertical bar (|). Specify this field only when business_type is 2 (AIR).
|
admission_notice_url String | If business_type is 3 (Overseas study consulting), the URL of admission notice (image) must be specified.
|
goods_info String | Goods information that includes SKU names and corresponding quantities, in the format of SKU_name^quantity. If more than one goods exists, separate values with vertical bar (|). Specify this field only when business_type is 4 (Sales of goods).
|
total_quantity Number | Total quantities of all goods in one order. Specify this field only when business_type is 4 (Sales of goods).
|
other_business_type String | If business_type is 5 (Others), specify the business type in details.
|
Notes:
- When the merchant wishes to price their products in RMB, the merchant can put the CNY payment amount in the
rmb_fee
field. In the same time, thetotal_fee
field needs to be ignored. The payment amount will be displayed in RMB to the user.
- The merchant must not change the value of the
currency
field, which is the settlement currency that Alipay pays the merchant in. - The
total_fee
orrmb_fee
field are mutually exclusive. One and only one of them can be used.
- The decimal place accuracy of amounts, such as the values of
total_fee
, depends on the value ofcurrency
. If the value ofcurrency
isJPY
, then the amount must be an integer. For example, 100 JPY. For other currencies, the amount is of two decimal place accuracy. For example, 100.00 USD. Amounts in other formats will cause error, for example, 100.999 USD. The value ofrmb_fee
is also of two decimal places because the currency is CNY. - If both
order_gmt_create
+order_valid_time
andtimeout_rule
are specified,order_gmt_create
+order_valid_time
will be used for order timeout control. Alipay suggests to useorder_gmt_create
+order_valid_time
for order timeout control. - The merchant cannot attach parameters to
return_url
in order to pass them to Alipay. Alipay will remove all extra parameters in thereturn_url
field.
Response
Synchronous response
Parameter | Description |
Basic parameter | |
sign_type String | Sign type. RSA, RSA2 and MD5 are supported. Use uppercase.
|
sign String | Sign value
|
Business parameter | |
trade_status String(32) | Alipay transaction status. For each transaction, you must ensure that the status is TRADE_FINISHED. See Trade status for details.
|
trade_no String(64) | The serial number assigned by Alipay to identify a trade in the Alipay system, with a length in the range 16 - 64 bits.
|
out_trade_no String(64) | The unique transaction ID that is assigned by the merchant. This parameter is transmitted by the corresponding request and needs to be returned with the original value.
|
currency String(3) | Settlement currency code
|
total_fee Number(9,2) | The transaction amount. This parameter is transmitted by the corresponding request and needs to be returned with its original value.
|
Asynchronous response
Parameter | Description |
Basic parameter | |
sign_type String | Sign type. RSA, RSA2 and MD5 are supported. Use uppercase.
|
sign String | Sign value
|
Business parameter | |
notify_type String | Notification type, with a value of trade_status_sync
|
notify_id String(34) | Notification ID, used by the partner system to verify the notification
|
notify_time Timestamp | The time in GMT+8 when the notification is sent. The time format is yyyy-MM-dd HH:mm:ss.
|
trade_status String(32) | Alipay transaction status. See Trade status for details.
|
trade_no String(64) | The serial number assigned by Alipay to identify a trade in the Alipay system, with a length in the range 16 - 64 bits.
|
out_trade_no String(64) | The unique transaction ID that is assigned by the merchant. This parameter is transmitted by the corresponding request and needs to be returned with the original value.
|
currency String(3) | Settlement currency code
|
total_fee Number(9,2) | The transaction amount. This parameter is transmitted by the corresponding request and needs to be returned with its original value.
|
Notification trigger condition
Trigger condition name | Description | Note |
TRADE_FINISHED | Trade is completed successfully | true (trigger notification) |
WAIT_BUYER_PAY | Trade creation | false (does not trigger notification) |
TRADE_CLOSED | Trade closed | true (trigger notification) |
Please pay attention to the specifications when you use asynchronous notifications:
- Ensure that the Notification Page (as configured by
notify_url
) is absolutely blank, without space, html tag, or any error messages threw from the program system. - Alipay sends the notification information in POST method.
- Asynchronous notification is only sent when a transaction exists in Alipay system and the transaction status is changed. For example, if the status of a real-time transaction is
WAIT_BUYER_PAY
, no notification is sent. - For some interfaces, if both
return_url
andnotify_url
are passed, both synchronous redirection and asynchronous notification are used when a transaction reaches a final state. - Asynchronous notification is the interaction between servers, which, unlike interaction between websites, is usually not visible.
- After the notification is processed, the notification page must print "success" (without quote). If not, Alipay server keeps re-sending notification for the next 24 hours and 22 minutes. Generally, there are eight notifications within 25 hours (Frequency: 2m, 10m, 10m, 1h, 2h, 6h, 15h).
- After the notification is processed, the notification page must not redirect. Otherwise, Alipay will not recognize a "success" string. Alipay system will then regard it as an error and keep sending notification.
- Cookies and sessions are invalid on the notification page, which means these data cannot be captured.
- The configuration and testing of asynchronous notification must be on a server that is connected to internet.
- The main purpose of the asynchronous notification is to prevent loss of transaction orders. Even if a synchronous redirection fails, asynchronous notification can ensure that the merchant can still obtain the transaction information.
- Alipay uses
notify_id
for idempotence control of asynchronous notifications. When the merchant receives the asynchronous notification and prints "success", the parameternotify_id
becomes invalid. - Alipay might add new parameters (existing parameters will not change) along the way. When doing notification verification, merchants must use all parameters returned from Alipay, excluding
sign_type
andsign
.
Error codes
Business errors
Returned Result | Description |
FOREX_MERCHANT_NOT_SUPPORT_THIS_CURRENCY | The currency is not supported. |
ILLEGAL_SECURITY_PROFILE | This kind of encryption is not supported. |
REPEAT_OUT_TRADE_NO | The out_trade_no parameter is duplicated. |
ILLEGAL_CURRENCY | Incorrect currency parameter |
ILLEGAL_TIMEOUT_RULE | Incorrect timeout_rule parameter |
SYSTEM_EXCEPTION | Alipay system error |
ILLEGAL_ARGUMENT | Incorrect parameter |
SECONDARY_MERCHANT_ID_BLANK | The secondary merchant ID is not provided to Alipay. |
SECONDARY_MERCHANT_ID_INVALID | The secondary merchant is not registered with Alipay. |
SECONDARY_MERCHANT_STATUS_ERROR | The status of secondary merchant is abnormal in the Alipay system. |
Access errors
Returned Result | Description |
ILLEGAL_SIGN | Illegal signature |
ILLEGAL_SERVICE | Incorrect service parameter |
ILLEGAL_PARTNER | Incorrect partner ID |
ILLEGAL_SIGN_TYPE | Signature is of wrong type. |
ILLEGAL_PARTNER_EXTERFACE | Service is not activated for this account. |
ILLEGAL_DYN_MD5_KEY | Dynamic key information is incorrect. |
ILLEGAL_ENCRYPT | Encryption is incorrect. |
ILLEGAL_USER | User ID is incorrect. |
ILLEGAL_EXTERFACE | Interface configuration is incorrect. |
ILLEGAL_AGENT | Agency ID is incorrect. |
HAS_NO_PRIVILEGE | Not authorized to visit. |
INVALID_CHARACTER_SET | The character set is invalid. |
System errors
Returned result | Description |
SYSTEM_ERROR | Alipay system error |
SESSION_TIMEOUT | Session timeout |
ILLEGAL_TARGET_SERVICE | Wrong target service |
ILLEGAL_ACCESS_SWITCH_SYSTEM | Merchant is not allowed to visit system of this type. |
EXTERFACE_IS_CLOSED | The interface has been closed. |
Samples
Request
Request sample for merchants directly integrated with Alipay
https://intlmapi.alipay.com/gateway.do?service=create_forex_trade&partner=208xxxxxxxxx6931&_input_charset=UTF-8&sign_type=MD5¬ify_url=http%3A%2F%2Fwww.mikascoffee.com%2Fnotify&return_url=http%3A%2F%2Fwww.mikascoffee.com%2Freturn¤cy=USD&product_code=NEW_OVERSEAS_SELLER&subject=Mika's%20capsule%20coffee&out_trade_no=out_trade_no_20190826_204550&total_fee=12&refer_url=http%3A%2F%2Fwww.mikascoffee.com&trade_information=%7B%22business_type%22%3A%224%22%2C%22goods_info%22%3A%22Mika's%20capsule%20coffee%5E1%22%2C%22total_quantity%22%3A%221%22%7D&sign=2f269efd5b601babfa8a698e65253ea3
Request sample for acquirers and system integrators with secondary merchants
https://intlmapi.alipay.com/gateway.do?service=create_forex_trade&partner=208xxxxxxxxx6931&_input_charset=UTF-8&sign_type=MD5¬ify_url=http%3A%2F%2Fwww.mikascoffee.com%2Fnotify&return_url=http%3A%2F%2Fwww.mikascoffee.com%2Freturn¤cy=USD&product_code=NEW_OVERSEAS_SELLER&subject=Mika's%20capsule%20coffee&out_trade_no=out_trade_no_20190826_204550&total_fee=12&secondary_merchant_id=1314520&secondary_merchant_name=China%20Substation&secondary_merchant_industry=5499&sign=0ef10a4855cfbd82d2c5865414104823
Response
Synchronous response sample
http://www.mikascoffee.com/return?out_trade_no=out_trade_no_20190826_204553&total_fee=0.01&trade_status=TRADE_FINISHED&sign=777dac430d4177aa4683877951512613&trade_no=2019082622001336530599785994¤cy=USD&sign_type=MD5
http://www.mikascoffee.com/return
out_trade_no=out_trade_no_20190826_204553
total_fee=0.01
trade_status=TRADE_FINISHED
sign=777dac430d4177aa4683877951512613
trade_no=2019082622001336530599785994
currency=USD
sign_type=MD5
Asynchronous response sample
http://www.mikascoffee.com/notify?notify_id=2019082600222210609036530579173208¬ify_type=trade_status_sync&sign=$$$&trade_no=2019082622001336530599785994&total_fee=0.01&forex_rate=7.20211000¬ify_reg_time=2019-08-26 21%3A06%3A09.149&out_trade_no=out_trade_no_20190826_204553&rmb_fee=0.07¤cy=USD¬ify_time=2019-08-26 21%3A06%3A09&trade_status=TRADE_FINISHED&sign_type=MD5
http://www.mikascoffee.com/notify
notify_id=2019082600222210609036530579173208
notify_type=trade_status_sync
sign=$$$
trade_no=2019082622001336530599785994
total_fee=0.01
forex_rate=7.20211000
notify_reg_time=2019-08-26 21:06:09.149
out_trade_no=out_trade_no_20190826_204553
rmb_fee=0.07
currency=USD
notify_time=2019-08-26 21:06:09
trade_status=TRADE_FINISHED
sign_type=MD5