Wechat applet obtains mobile number

First get session_key, I don't know how to get it. I can see My previous blog post

wxml：

<button open-type="getPhoneNumber" bindgetphonenumber="getPhoneNumber">
	 Get cell phone number 
</button>

js：

// Get the user's mobile number 
  getPhoneNumber (e) {
    
    if(e.detail.errMsg=='getPhoneNumber:ok'){
    
      let self=this;
      wx.showLoading({
    
        title: ' Loading ',
        mask:true
      })
      let data={
    
        sessionkey:app.globalData.session_key,// Previously obtained session_key
        iv: e.detail.iv,
        encryptedData: e.detail.encryptedData// Encrypt data 
      };  
      // Here we have got encryptedData Encrypt data , Then send it to the background AES Decrypt 
      wx.request({
    
        url: app.globalData.requestUrl+'/wx/get_phoneNumber ', // Change to your own url
        data,
        header: {
    
          "Content-Type": "application/x-www-form-urlencoded"
        },
        method:'POST',
        success (res) {
    
          wx.hideLoading()
          console.log(res.data)
          // Expected after decryption json  structure 
		/*{ "phoneNumber":  Mobile phone number bound by the user （ Foreign mobile phone numbers will have area codes ）, "purePhoneNumber":  Mobile phone number without area code , "countryCode":  Area code , "watermark": { "appid": APPID, "timestamp": TIMESTAMP } }*/
		
        }
      })
    }
  }

Backstage decryption

Wechat official provides a variety of programming language sample code （（ Click to download ）. The interface name of each language type is consistent . Call method can refer to the example

If you have used the official wechat offer mentioned by wechat payment before wechatpay Development Library , Then use it directly Sensitive information plus / Decrypt The function is simple

If you want to download, you can go before Wechat paid blog Download , It's not listed here