Not able to get token from keycloak when api gateway is working as resource server

[RatneshChouhan]

I have set up authorization using keycloak and I'm getting token for product-service and its working perfectly fine, however when I configured authorization flow and api-gateway as resource server I'm not getting token from localhost key cloak endpoint, instead getting error -
2022-11-29 11:41:21,467 WARN [org.keycloak.events] (executor-thread-1) type=LOGIN_ERROR, realmId=e57bf1b5-e17d-4e70-812b-c83faff3fb12, clientId=spring-cloud-gateway-client, userId=null, ipAddress=127.0.0.1, error=invalid_redirect_uri, redirect_uri=http://localhost:8080/login/oauth2/code/spring-cloud-gateway-client