AICORE-527: fix dedup delete caller when no xpath is mentioned

insight-rest-client/src/main/java/org/nuxeo/ai/sdk/rest/client/API.java

@@ -29,10 +29,8 @@
 import java.io.Serializable;
 import java.util.Map;
 import java.util.Objects;
-
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
-
 import org.apache.commons.lang3.StringUtils;
 import org.nuxeo.ai.sdk.rest.exception.UnsupportedPathException;
 
@@ -180,7 +178,11 @@ public String toPath(HttpMethod method, @Nonnull String project, Map<String, Ser
                 int threshold = (int) parameters.get(THRESHOLD_PARAM);
                 return API_DEDUP + project + "/recalculateSimilarTuples?threshold=" + threshold;
             case DELETE:
-                return API_DEDUP + project + "/index/" + docId + "?xpath=" + xpath;
+                String url = API_DEDUP + project + "/index/" + docId;
+                if (xpath != null) {
+                    url += "?xpath=" + xpath;
+                }
+                return url;
             default:
                 throw new UnsupportedPathException("Invalid API call for " + this.name());
             }

insight-rest-client/src/test/java/org/nuxeo/ai/sdk/rest/api/TestDedupCaller.java

@@ -136,6 +136,10 @@ public void iCanDeleteFromIndex() throws IOException {
 
         result = client.api(Dedup.DELETE).call(params, "{}");
         assertThat(result).isTrue();
+
+        params.remove(XPATH_PARAM);
+        result = client.api(Dedup.DELETE).call(params, "{}");
+        assertThat(result).isTrue();
     }
 
     private TensorInstances createTensor(String docId) {

insight-rest-client/src/test/resources/mappings/insight_dedup_delete_no_xpath.json

@@ -0,0 +1,9 @@
+{
+  "request": {
+    "method": "DELETE",
+    "url": "/api/v1/ai/dedup/test/index/document_uuid_001"
+  },
+  "response": {
+    "status": 204
+  }
+}