Using Jira Server REST Apis Connect (OAuth 2.0): unable to get authorization code

[Jisoo Shin]

Hello, I have a problem.

when i try to exchange authorization code for access token, follow guide, https://developer.atlassian.com/cloud/jira/platform/oauth-2-3lo-apps/

curl --request POST --url "https://auth.atlassian.com/oauth/token" --data "{"grant_type": "authorization_code","client_id": "xx","client_secret": "xx","code": "xx","redirect_uri": "https://curvcihp.atlassian.net"}"

 response error code..

{"error":"access_denied","error_description":"Unauthorized"}

what should i do to solve this problem..