This article has shared the specific code of mini-program calling WeChat payment for your reference. The specific content is as follows
First call the applet login interface to get the user code
Pass the code as a parameter to the backend call the backend interface wechat/pay/prepay
Get backend these five return values
nonceStr
package2
paySign
signType
timeStamp
({
success: function (res) {
var userId = ('userId');
var passw = userId + orderId;
(passw)
var password = util.sha1(passw);
//(res) //Get the value returned by the user's code WeChat ({
url: url + 'wechat/pay/prepay',
method: "POST",
header: {
'content-type': 'application/json',
},
data: {
code: , //WeChat return code userId: userId, //The backend returned to me when logging in and registering orderId: orderId, //The work order number returned to me by the backend when the user submits sign: password, //SerId + orderId encryption required by the backend },
success: function (res) {
// if ( == "000000"){
nonceStr = ;
package2 = ;
paySign = ;
signType = ;
timeStamp = ;
that.pay2()
// }
()
()
()
()
()
},
fail(err) {
(err)
}
})
},
fail(errs) {
(errs)
}
})
After successful return, the user clicks payment and calls the WeChat payment interface:
Set the amount on the backend and the user can pay by calling it
pay2() {
(
{
timeStamp: timeStamp, //Time stamp nonceStr: nonceStr, //Random string package: package2, //Unify the prepay_id parameter value returned by a single interface signType: signType, //Signature type paySign: paySign, //sign success(res) {
(res)
({
url: '../successful/successful'
})
},
fail(res) {
(res)
}
})
},
Finally, when our project called the WeChat payment interface, we requested our backend interface in the success function to obtain the status code and determine whether the payment was successful. Because the user pays to WeChat, after success, only the user can see that our backend cannot obtain whether the payment is successful. This is the purpose of requesting this interface. After the WeChat request to pay successfully, the backend requests to get the return value.
The above is all the content of this article. I hope it will be helpful to everyone's study and I hope everyone will support me more.