How does a mini program built with WeDa low-code obtain user openid?

When a mini - program is built with WeDa low - code, obtaining the user's openid involves several steps.

Explanation

The openid is a unique identifier for a user in the context of a specific mini - program on the WeChat platform. It allows the mini - program to recognize and distinguish different users. To obtain the openid, the mini - program needs to interact with the WeChat server.

When a user accesses the mini - program, the mini - program can initiate a request to the WeChat server through the WeChat open - platform interface. Usually, this is done by first guiding the user to log in to the mini - program. Once the user logs in successfully, the mini - program can receive an authorization code from the WeChat server. Then, the mini - program sends this authorization code along with other necessary information (such as the appid and secret key) to the WeChat server. The WeChat server will verify the information and return the user's openid to the mini - program.

Example

Here is a simple code - like example to illustrate the process conceptually:

# Assume this is a simplified Python - like code for getting openid in a WeDa mini - program
import requests

# Step 1: Guide the user to log in and get the authorization code
auth_code = get_user_authorization_code()  # This is a function that simulates getting the auth code after user login

# Step 2: Prepare the necessary information
appid = "your_mini_program_appid"
secret = "your_mini_program_secret"

# Step 3: Send a request to the WeChat server to get the openid
url = f"https://api.weixin.qq.com/sns/jscode2session?appid={appid}&secret={secret}&js_code={auth_code}&grant_type=authorization_code"
response = requests.get(url)
data = response.json()

# Step 4: Extract the openid from the response
openid = data.get("openid")
print(f"The user's openid is: {openid}")

In the WeDa low - code environment, these steps are usually abstracted into some built - in functions or components. Developers can use these pre - provided functions to easily obtain the user's openid without having to write complex code from scratch.

For cloud - related services in this process, if you need to store the obtained openid and associated user information for subsequent analysis or business logic processing, you can use Tencent Cloud's Cloud Database service. It can provide reliable data storage and management capabilities, allowing you to store user openids and other relevant data safely and efficiently.