JVM - api.patch()

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

This method is a convenient short version of api().route().patch](./api-route-patch)

import io.nitric.Nitric;
public class Application {
public static void main(String[] args) {
var api = Nitric.INSTANCE.api("public");
api.patch("/customers", (ctx) -> {
// handle PATCH request
return ctx;
});
Nitric.INSTANCE.run();
}
}

Parameters

  • Name
    match
    Required
    Required
    Type
    String
    Description

    The path matcher to use for the route. Matchers accept path parameters in the form of a colon prefixed string. The string provided will be used as that path parameter's name when calling middleware and handlers. See create a route with path params

  • 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 PATCH requests

import io.nitric.Nitric;
public class Application {
public static void main(String[] args) {
var api = Nitric.INSTANCE.api("public");
api.patch("/customers", (ctx) -> {
// handle PATCH request
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.patch("/customer", List.of(Application::validateRequest, Application::handleRequest));
Nitric.INSTANCE.run();
}
}

Access the request body

The PATCH request body is accessible from the ctx.req object.

import io.nitric.Nitric;
public class Application {
public static void main(String[] args) {
var api = Nitric.INSTANCE.api("public");
api.patch("/customer", (ctx) -> {
var customerData = ctx.getReq().getData();
// parse, validate, and store the request payload...
});
Nitric.INSTANCE.run();
}
}
Last updated on Oct 11, 2024