wechat

WeChat

Prerequisites

To use the service you need to apply for a WeChat Official Account. Application approval is a manual process and might take a while. In the meantime, you can test your code using the sandbox.

You need the following configuration information to sent out text messages with an Official Account:

1. AppID
2. AppSecret
3. Token
4. EncodingAESKey
5. Verification URL

The AppID and AppSecret are provided to you by WeChat. The Token, EncodingAESKey and the Verifications URL, you set yourself and are needed by the authentication method. More on this here.

Getting Started

Until your application is approved, # to the sandbox to get an AppID, an AppSecret and set the Token and the Verification URL. Typically, you need a service like ngrok for the latter. You don't need to/cannot set the EncodingAESKey, because it's not required in the sandbox environment:

You also need a user subscribed to your Official Account. You can use your own:

Usage

package main

import (
  "github.com/silenceper/wechat/v2/cache"
  "log"
  "context"
  "fmt"
  "net/http"
  "github.com/nikoksr/notify"
  "github.com/nikoksr/notify/service/wechat"
)

func main() {

  wechatSvc := wechat.New(&wechat.Config{
    AppID:          "abcdefghi",
    AppSecret:      "jklmnopqr",
    Token:          "mytoken",
    EncodingAESKey: "IGNORED-IN-SANDBOX",
    Cache:          cache.NewMemory(),
  })

  // do this only once, or when settings are updated
  devMode := true
  wechatSvc.WaitForOneOffVerification(":7999", devMode, func(r *http.Request, verified bool) {
    if !verified {
      fmt.Println("unknown or failed verification call")
    } else {
      fmt.Println("verification call done")
    }
  })

  wechatSvc.AddReceivers("some-user-openid")

  notifier := notify.New()
  notifier.UseServices(wechatSvc)

  err := notifier.Send(context.Background(), "subject", "message")
  if err != nil {
    log.Fatalf("notifier.Send() failed: %s", err.Error())
  }

  log.Println("notification sent")
}