Detailed tutorial of WeChat applet sending subscription message, problems encountered and summary, with pure front-end implementation code

Applet subscription message

• Mini Programs sometimes need to send messages to users, such as meal reminders, audit result notifications, etc. We can use the official free API of Mini Programs: Mini Program Subscription Messages .
  
• The common types of subscription messages for applets are one-time subscription messages and long-term subscription messages . These two main differences are:
  • One-time subscription message : user 授权一次，只能发送一次消息, if you want to send it again, you need to authorize it again
  • Long-term subscription news : Yes 授权一次，一直发送，没有次数限制. (At present, long-term subscription news is only open to offline public services such as government affairs and people's livelihood, medical care, transportation, finance, and education)
• Both of these have message templates. The optional range of templates depends on the category of the applet. Different categories have different templates .

Use detailed steps

This article mainly introduces the sending of one-time subscription messages , taking sending audit result notifications as an example
(because I don’t have a small program that can send long-term subscriptions to demonstrate hhh)

1. Select a message template and obtain the template