Stine Stine - 5 months ago 198
Java Question

Post empty body with Jersey 2 client

How do I submit a post request with an empty body with a Jersey 2 client?

final MyClass result = ClientBuilder.newClient()
.target("http://localhost:8080")
.path("path")
.queryParam("key", "value")
.request(APPLICATION_JSON)
.post(What to fill in here if the body should be left empty??, MyClass.class);





Update: this works:

final MyClass result = ClientBuilder
.newBuilder().register(JacksonFeature).build()
.target("http://localhost:8080")
.path("path")
.queryParam("key", "value")
.request(APPLICATION_JSON)
.post(null, MyClass.class);

Answer

I can't find this in the doc's anywhere, but I believe you can use null to get an empty body:

final MyClass result = ClientBuilder.newClient()
    .target("http://localhost:8080")
    .path("path")
    .queryParam("key", "value")
    .request(APPLICATION_JSON)
    .post(Entity.json(null), MyClass.class)
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