Refresh Access Tokens

Perform the following procedure to refresh the access tokens:

If the access_token has expired, it can be refreshed by sending a POST request to the same URL as above; but the POST method must have the refresh token instead of username and password. The format is as follows:

'client_id': 'your_client_id',
'refresh_token': refresh_token_from_previous_request,
'grant_type': 'refresh_token'
 
Example:
'client_id': 'cncc-api-access',
'refresh_token': 'eyJhbGciOiJIUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICI3YTFlYjcyZi00MWE1LTRkMTEtYjRmZS01NDZjZGU5NjY2MTUifQ.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.l8w3j1gMNgblKSYdvCmJQfg6yIfkdKnmFb5vKPF-ZIg',
'grant_type': 'refresh_token'

In response, you will receive a new access_token and refresh_token.