WeChat small program user registration contract (optional)

User registration/contracting (optional)

WeChat background to the owner to initiate user registration.

The name of the argument	Type	Required	Note
appid	string	Y	Small program
appidmch_id	string	Y	Pay the merchant number
nonce_str	string	Y	Random string
encrypted_data	string	Y	Use AESCBCPKCS7PADDING
Ⅳ	string	Y	Iv for decryption
sign	string	Y	Signature of 1 to 5 fields

encrypted_data decrypted data

The name of the argument	Type	Required	Note
Openid	string	Y	The user id

The name of the argument	Type	Required	Note
errcode	Int	Y	0 is a success
errmsg	string	N	The error message
nonce_str	string	Y	Bring it back as is
encrypted_data	string	Y	Use AESCBCPKCS7PADDING
Ⅳ	string	Y	Iv for decryption

encrypted_data decrypted data

The name of the argument	Type	Required	Note
cardid	string	Y	The user card ID

Request:

{"appid":"test","mch_id":"123456","nonce_str":"abcdefg","encrypted_data":"jfiwajeofjiefef","iv":"afweifwefe"}

encrypted_data is decrypted:

{“openid”:”1234”}

Return:

{"errcode":0,"nonce_str":"abcdefg","encrypted_data":"jfiwajeofjiefef","iv":"afweifwefe"}

encrypted_data decrypted data:

{“card_id”:”xxafdafd”}