Explanation of Asynchronous Notification Signature Generation Process

Example of Asynchronous Notification Parameters

Field	Type	Desc	Remark
order_id	String	order id	ET Order Id
pay_result	Int	Payment results	1 payment successful, 0 failed
pay_amount	Float	payment amount	Floating point number, example 10000.00.
pay_datetime	String	Payment time	String type, example 2017-10-12 10:00:00
extend_info	String	extend info	Subsequent reserved use。
sign	String	signature	Use MD5 to generate signatures. For detailed procedures, please refer to the asynchronous notification signature generation process instructions

Asynchronous notification generation signature process

Assemble the parameters according to the parameter order of the asynchronous notification parameter example (refer to the parameter example of each asynchronous notification for details), calculate the digest using md5, splice the salt value to the front of the signature string, and finally calculate the digest using md5

Example of sending signature:
Salt: xxxxxxxsssssstttttt # We will provide a unique salt for the merchant
order_id=ET00000000000000001&pay_result=1&pay_amount=100&pay_datetime=2017-10-12 10:00:00&extend_info
Calculate the summary using MD5 and then fill it in the sign field

Explanation of Asynchronous Notification Signature Generation Process

Example of Asynchronous Notification Parameters#

Asynchronous notification generation signature process#

Example of Asynchronous Notification Parameters

Asynchronous notification generation signature process