add getLabel collection sdk function

CHANGELOG.md

@@ -5,6 +5,7 @@
 - Update to v2 Hypermode metadata format [#176](https://github.com/hypermodeAI/functions-as/pull/176)
 - Fix display output of certain types during build [#180](https://github.com/hypermodeAI/functions-as/pull/180)
 - Make json in dgraph response not nullable [#181](https://github.com/hypermodeAI/functions-as/pull/181)
+- Add getLabel collection sdk function [#183](https://github.com/hypermodeAI/functions-as/pull/183)
 
 ## 2024-08-27 - Version 0.11.2
 

src/assembly/collections.ts

@@ -71,19 +71,22 @@ export class CollectionSearchResultObject {
   namespace: string;
   key: string;
   text: string;
+  labels: string[];
   distance: f64;
   score: f64;
 
   constructor(
     namespace: string,
     key: string,
     text: string,
+    labels: string[],
     distance: f64,
     score: f64,
   ) {
     this.namespace = namespace;
     this.key = key;
     this.text = text;
+    this.labels = labels;
     this.distance = distance;
     this.score = score;
   }
@@ -217,6 +220,14 @@ declare function hostGetVector(
   key: string,
 ): f32[];
 
+// @ts-expect-error: decorator
+@external("hypermode", "getLabels")
+declare function hostGetLabels(
+  collection: string,
+  namespace: string,
+  key: string,
+): string[];
+
 // @ts-expect-error: decorator
 @external("hypermode", "searchCollectionByVector")
 declare function hostSearchCollectionByVector(
@@ -548,19 +559,19 @@ export function computeDistance(
 ): CollectionSearchResultObject {
   if (collection.length == 0) {
     console.error("Collection is empty.");
-    return new CollectionSearchResultObject("", "", "", 0.0, 0.0);
+    return new CollectionSearchResultObject("", "", "", [], 0.0, 0.0);
   }
   if (searchMethod.length == 0) {
     console.error("Search method is empty.");
-    return new CollectionSearchResultObject("", "", "", 0.0, 0.0);
+    return new CollectionSearchResultObject("", "", "", [], 0.0, 0.0);
   }
   if (key1.length == 0) {
     console.error("Key1 is empty.");
-    return new CollectionSearchResultObject("", "", "", 0.0, 0.0);
+    return new CollectionSearchResultObject("", "", "", [], 0.0, 0.0);
   }
   if (key2.length == 0) {
     console.error("Key2 is empty.");
-    return new CollectionSearchResultObject("", "", "", 0.0, 0.0);
+    return new CollectionSearchResultObject("", "", "", [], 0.0, 0.0);
   }
   return hostComputeDistance(collection, namespace, searchMethod, key1, key2);
 }
@@ -620,3 +631,19 @@ export function getVector(
   }
   return hostGetVector(collection, namespace, searchMethod, key);
 }
+
+export function getLabels(
+  collection: string,
+  key: string,
+  namespace: string = "",
+): string[] {
+  if (collection.length == 0) {
+    console.error("Collection is empty.");
+    return [];
+  }
+  if (key.length == 0) {
+    console.error("Key is empty.");
+    return [];
+  }
+  return hostGetLabels(collection, namespace, key);
+}