How send list as Query param using RESTEasy client

Question

I'm trying to call service sending a list as query param using RESTEasy client:

Service:

@POST
@Path("/names")
public void getNames(@QueryParam("name") final List<String> names) {

}

Client:

final MultivaluedMap<String, Object> queryParams = new MultivaluedMapImpl<>();
queryParams.add("name", "name1");
queryParams.add("name", "name2");
final ResteasyClient client = new ResteasyClientBuilder().build();
final ResteasyWebTarget target = client.target(url).queryParams(queryParams);
final Builder builder = target.request();
builder.accept(MediaType.APPLICATION_JSON);
final Response response = builder.post(Entity.form(form));

When I call the /names endpoint will have 1 element and names.get(0) == [name1, name2]

@Cássio Mazzochi Molin: The URI including the query parameters is usually used to identify a resource whereas the body of the request contains a representation of the resource. So in some cases it might make sense to e.g. POST a present to loyal customers: /customers?minOrders=10. — lefloh
– lefloh, Commented Oct 21, 2015 at 2:19
@user3784148: Which version of RESTeasy are you using? Can't reproduce it with 3.0.6.Final. Or maybe misunderstood your problem. — lefloh
– lefloh, Commented Oct 21, 2015 at 2:20
@lefloh I've tried to edit and accidentally removed my comment. You are completely right about the use of query parameters in POST requests. Thanks for providing an example. — cassiomolin
– cassiomolin, Commented Oct 21, 2015 at 7:31

user3784148 · Accepted Answer · 2015-10-21 09:20:57Z

2

The problem is solved. The code that I post recently works well.

The wrong code is :

final List<String, String> list = new ArrayList<>();
list.add("name1");    
list.add("name2");    
final MultivaluedMap<String, Object> queryParams = new MultivaluedMapImpl<>();
queryParams.addAll("name", list);
final ResteasyClient client = new ResteasyClientBuilder().build();
final ResteasyWebTarget target = client.target(url).queryParams(queryParams);;
final Builder builder = target.request();
builder.accept(MediaType.APPLICATION_JSON)
final Response response = builder.post(Entity.form(form));

if I look the code of the class MultivaluedMapImpl i don't find a difference if I use "add" or "addAll" methods!!

edited Oct 21, 2015 at 9:20

answered Oct 21, 2015 at 9:15

user3784148

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