diff --git a/src/main/java/org/example/tampoposerverdtram/resources/DeletedFriendPair.java b/src/main/java/org/example/tampoposerverdtram/resources/DeletedFriendPair.java
index 757bc8e..e3f1f85 100644
--- a/src/main/java/org/example/tampoposerverdtram/resources/DeletedFriendPair.java
+++ b/src/main/java/org/example/tampoposerverdtram/resources/DeletedFriendPair.java
@@ -27,12 +27,12 @@
 		temp_json0.put("user0Id", user0Id);
 		temp_json0.put("user1Id", user1Id);
 		this.value = temp_json0;
-		String result = client.target("http://localhost:8080").path("/users/"+user0Id+"/friends").queryParam("deletedFriendPair", this.value.toString()).request().delete(String.class);
-		result = client.target("http://localhost:8080").path("/users/"+user1Id+"/friends").queryParam("deletedFriendPair", this.value.toString()).request().delete(String.class);
+		String result = client.target("http://localhost:8080").path("/users/"+user0Id+"/friends").queryParam("deletedFriendPair", new ObjectMapper().writeValueAsString(this.value)).request().delete(String.class);
+		result = client.target("http://localhost:8080").path("/users/"+user1Id+"/friends").queryParam("deletedFriendPair", new ObjectMapper().writeValueAsString(this.value)).request().delete(String.class);
 		Form form = new Form();
 		form.param("deletedFriendPair", this.value.toString());
 		Entity<Form> entity = Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED);
 		result = client.target("http://localhost:8080").path("/friends/users").request().post(entity, String.class);
-		result = client.target("http://localhost:8080").path("/friends/pairs").queryParam("deletedFriendPair", this.value.toString()).request().delete(String.class);
+		result = client.target("http://localhost:8080").path("/friends/pairs").queryParam("deletedFriendPair", new ObjectMapper().writeValueAsString(this.value)).request().delete(String.class);
 	}
 }
\ No newline at end of file
diff --git a/src/main/java/org/example/tampoposerverdtram/resources/Friends.java b/src/main/java/org/example/tampoposerverdtram/resources/Friends.java
index 8354487..052f264 100644
--- a/src/main/java/org/example/tampoposerverdtram/resources/Friends.java
+++ b/src/main/java/org/example/tampoposerverdtram/resources/Friends.java
@@ -38,7 +38,7 @@
 	}
 	@Path("/pairs")
 	@POST
-	public void postFriend(@FormParam("user1Id") String user1Id, @FormParam("user0Id") String user0Id) {
+	public void postFriend(@FormParam("user1Id") String user1Id, @FormParam("user0Id") String user0Id) throws JsonProcessingException {
 		getPairs().postFriend(this, user1Id, user0Id);
 	}
 	@Path("/pairs/{pid}")
diff --git a/src/main/java/org/example/tampoposerverdtram/resources/Pairs.java b/src/main/java/org/example/tampoposerverdtram/resources/Pairs.java
index aa2b07d..6ba6428 100644
--- a/src/main/java/org/example/tampoposerverdtram/resources/Pairs.java
+++ b/src/main/java/org/example/tampoposerverdtram/resources/Pairs.java
@@ -32,7 +32,7 @@
 		}
 		this.value = temp_if39;
 	}
-	public void postFriend(Friends friends, String user1Id, String user0Id) {
+	public void postFriend(Friends friends, String user1Id, String user0Id) throws JsonProcessingException {
 		String pairId = client.target("http://localhost:8080").path("/pairId").request().get(String.class);
 		Map<String, Map<String, Object>> users_json = client.target("http://localhost:8080").path("/users").request().get(HashMap.class);
 		Map<String, Map<String, Object>> users = new HashMap<>();
@@ -53,17 +53,17 @@
 		this.value = temp_if42;
 		Form form = new Form();
 		form.param("pid", pairId);
-		form.param("pair", getPair(pairId).getValue().toString());
+		form.param("pair", new ObjectMapper().writeValueAsString(getPair(pairId).getValue()));
 		Entity<Form> entity = Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED);
 		String result = client.target("http://localhost:8080").path("/users/"+user0Id+"/friends").request().post(entity, String.class);
 		form = new Form();
 		form.param("pid", pairId);
-		form.param("pair", getPair(pairId).getValue().toString());
+		form.param("pair", new ObjectMapper().writeValueAsString(getPair(pairId).getValue()));
 		entity = Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED);
 		result = client.target("http://localhost:8080").path("/users/"+user1Id+"/friends").request().post(entity, String.class);
 		form = new Form();
 		form.param("pid", pairId);
-		form.param("pair", getPair(pairId).getValue().toString());
+		form.param("pair", new ObjectMapper().writeValueAsString(getPair(pairId).getValue()));
 		entity = Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED);
 		result = client.target("http://localhost:8080").path("/pairId").request().post(entity, String.class);
 	}