5 minutes to achieve wechat cloud applet payment function (including source code)

1 First on the renderings

Fast implementation of payment function , How fast ？ Yes Five whips So fast , Don't build your own server , Don't buy domain name , Don't file domain names , No need to support https. Just a simple cloud function , You can easily realize the payment function of wechat applet

2 preparation

1, Non personal applets , Personal apps don't pay （ Applet appid）

2, The merchant number that has applied for wechat payment （ Merchant id, Merchant secret key ）.

3, Connect your merchant ID in the app （ The app is bound with the merchant number ）

4, Wechat app opens cloud development

3 Open the door

（1） Initialize the cloud development environment

（2） Create cloud functions pay

（3） Introduce third-party payment dependency tenpay

pay Folder right-click Select open at terminal , Installation dependency npm i tenpay

After installation , our pay There will be one more cloud function package.json file

（4） Write cloud functions

（5） Simply write a page and call the cloud function

Abnormal problems

1. Error: errCode: -404011 cloud function execution error
   Because it wasn't uploaded and deployed , Right click the cloud function to upload and deploy

2. Signature error Wechat payment signature error

Source code

Official account 《 Source code trust Mart 》 reply payment Access to the source code

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