src/core/lib/security/credentials/jwt/jwt_credentials.h

/*
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#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_CREDENTIALS_H
#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_CREDENTIALS_H

#include "src/core/lib/security/credentials/credentials.h"
#include "src/core/lib/security/credentials/jwt/json_token.h"

typedef struct {
  grpc_call_credentials base;

  // Have a simple cache for now with just 1 entry. We could have a map based on
  // the service_url for a more sophisticated one.
  gpr_mu cache_mu;
  struct {
    grpc_credentials_md_store *jwt_md;
    char *service_url;
    gpr_timespec jwt_expiration;
  } cached;

  grpc_auth_json_key key;
  gpr_timespec jwt_lifetime;
} grpc_service_account_jwt_access_credentials;

// Private constructor for jwt credentials from an already parsed json key.
// Takes ownership of the key.
grpc_call_credentials *
grpc_service_account_jwt_access_credentials_create_from_auth_json_key(
    grpc_auth_json_key key, gpr_timespec token_lifetime);

#endif  // GRPC_CORE_LIB_SECURITY_CREDENTIALS_JWT_CREDENTIALS_H