Getting error when add HASURA_GRAPHQL_JWT_SECRET in self hosted hasura graphql

[vipinjohar]

When i put my dockr-compose.yml file -- HASURA_GRAPHQL_JWT_SECRET: '{"type":"RS256", "jwk_url": "https://cognito-idp.(aws -region).console.amazonaws.com/pool-id.well-known/jwks.json"}' it stop working and throwing below error
Error fetching JWK: ConnectionFailure Network.Socket.getAddrInfo (called with preferred socket type/protocol:
AddrInfo {addrFlags = [AI_ADDRCONFIG], addrFamily = AF_UNSPEC, addrSocketType = Stream, addrProtocol = 6, addrAddress = 0.0.0.0:0,
addrCanonName = Nothing}, host name: Just "cognito-idp.us-east-1.console.amazonaws.com", service name: Just "443"): does not exist (Name or service not known)

my hasura engine is self hosted on aws ec2 ,please help me to solve this