How to to get the automated refresh token through get auth token

[Community Alums]

Hi I'm able to get the authorization token manually but i wanted to automate this process for grant type authorization code 

[G Ponsekar]

Hi @Community Alums ,

Can you check this - https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB2058755

1. Initial manual authorization: You perform the authorization code grant flow manually one time to obtain both an access token and a refresh token.
2. Store the refresh token: The refresh token has a much longer lifespan than the access token. You must securely store this token, which is a sensitive credential.
3. Automate access token retrieval: When your access token expires, your automated script or application uses the refresh token to request a new access token from the /oauth_token.do endpoint. This can be done programmatically with a POST request and requires no user interaction.

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Thanks, GP