post static method
POST request
Implementation
static Future<Result<String>> post(String endpoint,
{int timeout = 3, Map<String, dynamic>? queryPara, dynamic body, Map<String, String>? headers, bool isRetry = false}) async {
return _request(
endpoint,
type: _RequestType.post,
timeout: timeout,
queryPara: queryPara,
body: body,
headers: headers,
isRetry: isRetry,
);
}