ldclakmal

import ballerina/http;

http:Client webAppClient = check new("https://localhost:9090",
    auth = {
       tokenUrl: "https://localhost:9443/oauth2/token",
       clientId: "FlfJYKBD2c925h4lkycqNZlC2l4a",
       clientSecret: "PJz0UhTJMrHOo68QQNpvnqAY_3Aa",
       scopes: ["customer"],
       clientConfig: {
           secureSocket: {

ldclakmal

import ballerina/grpc;
import ballerina/jwt;

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

ldclakmal

import ballerina/grpc;

GrpcClient clientEP = check new("https://localhost:9191",
    auth = {
        issuer: "order-service",
        audience: ["payment-service", "delivery-service"],
        keyId: "5a0b754-895f-4279-8843-b745e11a57e9",
        jwtId: "JlbmMiOiJBMTI4Q0JDLUhTMjU2In",
        customClaims: { "scp": "admin" },
        expTime: 3600,

ldclakmal

import ballerina/http;

listener http:Listener listenerEP = new(9091,
    secureSocket = {
        key: {
            certFile: "/path/to/server-public.crt",
            keyFile: "/path/to/server-private.key"
        },
        mutualSsl: {
            verifyClient: http:REQUIRE,

ldclakmal

import ballerina/http;

http:Client clientEP = check new("https://localhost:9092",
    secureSocket = {
        cert: "/path/to/client-public.crt",
        key: {
            certFile: "/path/to/server-public.crt",
            keyFile: "/path/to/server-private.key"
        }
    }

ldclakmal

import ballerina/http;
import ballerina/graphql;

listener http:Listener apiGateway = new(9090,
    secureSocket = {
        key: {
            certFile: "/path/to/public.crt",
            keyFile: "/path/to/private.key"
        }
    }

ldclakmal

public type CustomEvictionPolicy object {
    *cache:AbstractEvictionPolicy;
    public function get(LinkedList list, Node node) {
        // custom implementation related to updating the 
        // `LinkedList` based on the get operation.
    }
}

ldclakmal

public type CustomCache object {

    *AbstractCache;

    private AbstractEvictionPolicy evictionPolicy;
    private LinkedList list;

    public function __init(AbstractEvictionPolicy evictionPolicy) {
        self.evictionPolicy = evictionPolicy;
        self.list = {

ldclakmal

cache:Error? result = cache.put("key1", "value1");
if (result is cache:Error) {
    // implement what to do, if any error happen when inserting 
    // item to the cache
}
any|cache:Error result = cache.get("key1");
if (result is cache:Error) {
    // implement what to do, if any error happen when retrieving
    // item from the cache
}

ldclakmal

_ = check cache.put("key1", "value1");
string value = <string> check cache.get("key1");
_ = check cache.invalidate("key1");
_ = check cache.invalidateAll();
boolean hasKey = cache.hasKey("key1");
string[] keys = cache.keys();
int size = cache.size();
int capacity = cache.capacity();