How to set and check cookies wih JAX-RS?

Question

I am a noobie with RESTful API and I am trying to build a Login service in which I provide an email and password and if the validation is successful - to store a cookie. In addition, how do I check the cookie(if stored)?

How can this be achieved?

@Path("/login") @POST @Produces(MediaType.APPLICATION_JSON) @Consumes({MediaType.APPLICATION_FORM_URLENCODED, MediaType.APPLICATION_JSON}) public Response Login(final String i_LoginDetails) throws JSONException {     final JSONObject obj = new JSONObject(i_LoginDetails);     try {         if (isValidUser(obj.getString("email"), obj.getString("password"))) {             // Set a cookie         } else {             // return error invalid-credentials message         }     } catch (Exception e) {         e.printStackTrace();     }     return Response.ok("TEST").build(); } 

And how do I check the cookie(if set)?

Answer 1

You can do the following:

• To store a new cookie:

  @GET @Path("/login") @Produces(MediaType.TEXT_PLAIN) public Response login() {     NewCookie cookie = new NewCookie("name", "123");     return Response.ok("OK").cookie(cookie).build(); } 

• To retrieve the cookie (javax.ws.rs.core.Cookie):

  @GET @Path("/foo") @Produces(MediaType.TEXT_PLAIN) public Response foo(@CookieParam("name") Cookie cookie) {     if (cookie == null) {         return Response.serverError().entity("ERROR").build();     } else {         return Response.ok(cookie.getValue()).build();     } } 

  However, you may only want the value:

  @GET @Path("/foo") @Produces(MediaType.TEXT_PLAIN) public Response foo(@CookieParam("name") String value) {     System.out.println(value);     if (value == null) {         return Response.serverError().entity("ERROR").build();     } else {         return Response.ok(value).build();     } } 

---

By the way, you may want to try the following code:

@GET @Path("/logout") @Produces(MediaType.TEXT_PLAIN) public Response logout(@CookieParam("name") Cookie cookie) {     if (cookie != null) {         NewCookie newCookie = new NewCookie(cookie, null, 0, false);         return Response.ok("OK").cookie(newCookie).build();     }     return Response.ok("OK - No session").build(); } 

This removes the cookie in the browser. The behavior depends on the implementation of JAX-RS. With RESTEasy (JBoss AS 7.0) and Google Chrome works fine.