How can I send a request using the HTTP Options method with HTTPClient (Java 11)?

Question

As the title says, I would like to know how to send an HTTP request using HTTPClient with the OPTIONS method in Java. I have looked at the HTTP methods that can be used (GET, POST, PUT and DELETE) and I have not seen this option. An example of a GET/POST request with HTTPClient would be like this:

String uri = "https://www.stackoverflow.com/"
HttpRequest.Builder preRequest=null;

// EXAMPLE OF GET REQUEST
preRequest = HttpRequest.newBuilder()
.uri(URI.create( uri ))
.GET();

// EXAMPLE OF POST REQUEST
preRequest = HttpRequest.newBuilder()
.uri(URI.create( uri ))
.POST(BodyPublishers.ofString(req.getBody()));  // "req" is an object of a class made by me, it does not matter in this context

In case it can't be used (which would seem extremely rare to me), what alternative can I use?

Thank you very much in advance!

I mean Http OPTIONS Method [https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/OPTIONS. — PablooD9, Sep 06 '19 at 14:02

score 5 · Accepted Answer · edited Jun 20 '20 at 09:12

5

HttpRequest.Builder has a .method(String method, HttpRequest.BodyPublisher bodyPublisher) method which allows you to set a different HTTP method than the defined shortcuts such as .POST(HttpRequest.BodyPublisher bodyPublisher).

HttpRequest.Builder
method(String method, HttpRequest.BodyPublisher bodyPublisher)

Sets the request method and request body of this builder to the given values.

https://docs.oracle.com/en/java/javase/11/docs/api/java.net.http/java/net/http/HttpRequest.html#method()

edited Jun 20 '20 at 09:12

Community

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answered Sep 06 '19 at 14:03

Elias

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Thank you very much, works like a charm! +1 saved for when I have 15 reputation. – PablooD9 Sep 06 '19 at 14:13

score 0 · Answer 2 · answered Sep 14 '20 at 14:58

As said HttpRequest.Builder has a .method(String method, HttpRequest.BodyPublisher bodyPublisher) that let you configure your method.

This is an example for OPTIONS method

HttpRequest request = HttpRequest.newBuilder()
                                 .method("OPTIONS", HttpRequest.BodyPublishers.noBody())
                                 .uri(URI.create("http://localhost/api"))
                                 .build();

How can I send a request using the HTTP Options method with HTTPClient (Java 11)?

2 Answers2