JVM - api.route.get()

Register an API route and set a specific HTTP GET handler on that route.

import io.nitric.Nitric;
class User {
String name;
int age;
public User(String name, int age) {
this.name = name;
this.age = age;
}
}
public class Application {
public static void main(String[] args) {
var api = Nitric.INSTANCE.api("public");
api.route("/customers").get((ctx) -> {
// construct response for the GET: /customers request...
ctx.getResp().json(User("John Smith", 31));
return ctx;
});
Nitric.INSTANCE.run();
}
}

Parameters

  • Name
    middleware
    Required
    Required
    Type
    HttpMiddleware or List<HttpMiddleware>
    Description

    One or more middleware functions to use as the handler for HTTP requests. Handlers can be sync or async

Examples

Register a handler for GET requests

import io.nitric.Nitric;
class User {
String name;
int age;
public User(String name, int age) {
this.name = name;
this.age = age;
}
}
public class Application {
public static void main(String[] args) {
var api = Nitric.INSTANCE.api("public");
api.route("/customers").get((ctx) -> {
// construct response for the GET: /customers request...
ctx.getResp().json(User("John Smith", 31));
return ctx;
});
Nitric.INSTANCE.run();
}
}

Chain functions as a single method handler

When multiple functions are provided they will be called as a chain. If one succeeds, it will move on to the next. This allows middleware to be composed into more complex handlers.

import io.nitric.Nitric;
import io.nitric.faas.v0.HttpContext;
import io.nitric.faas.v0.Handler;
import java.util.List;
public class Application {
static HttpContext validateRequest(HttpContext ctx, Handler<HttpContext> next) {
// validateRequest
return next.invoke(ctx);
}
static HttpContext handleRequest(HttpContext ctx, Handler<HttpContext> next) {
// handle request
return next.invoke(ctx);
}
public static void main(String[] args) {
var api = Nitric.INSTANCE.api("public");
api.route("/customer").get(List.of(Application::validateRequest, Application::handleRequest));
Nitric.INSTANCE.run();
}
}
Last updated on Oct 11, 2024