You need to declare the ohos.permission.INTERNET permission for initiating HTTP requests. For details about the error codes, see libcurl Error Codes.
The GET and POST methods are commonly used for HTTP requests. If a request is successful, the returned service data is encapsulated in data.result and the cookie information in data.cookies. To change the character set, add the following parameter to the request header:
'Content-Type': "application/json; charset=UTF-8"
For a web request, the returned data is sometimes ultra-long text and cannot be completely logged in the console.log file.
Reference