grpc-listener-jwt.bal

import ballerina/grpc;
import ballerina/jwt;

listener grpc:Listener paymentsEP = new(9191,
    secureSocket = {
        key: {
            certFile: "/path/to/public.crt",
            keyFile: "/path/to/private.key"
        }
    }
);

@grpc:ServiceConfig {
    auth: [
        {
            jwtValidatorConfig: {
                issuer: "order-service",
                audience: "payment-service",
                signatureConfig: {
                    certFile: "/path/to/order-service-public.crt"
                },
                scopeKey: "scp"
            },
            scopes: ["admin"]
        }
    ]
}
@grpc:ServiceDescriptor {
    descriptor: ROOT_DESCRIPTOR,
    descMap: getDescriptorMap()
}
service "PaymentService" on paymentsEP {
    remote function payments(ContextString request) returns string {
        // business logic
    }
}