(fix) Migrate offline form concept label loading to new bulk endpoint

packages/esm-form-entry-app/src/app/offline/caching.ts

@@ -10,6 +10,7 @@ import {
 import escapeRegExp from 'lodash-es/escapeRegExp';
 import { FormSchemaService } from '../form-schema/form-schema.service';
 import { FormEncounter, FormSchema } from '../types';
+import { ConceptService } from '../services/concept.service';
 
 export function setupStaticDataOfflinePrecaching() {
   subscribePrecacheStaticDependencies(async () => {
@@ -90,8 +91,8 @@ async function getCacheableFormUrls(formUuid: string) {
 
   const conceptLang = (window as any).i18next?.language?.substring(0, 2).toLowerCase() || 'en';
   const requiredConceptIdentifiers = FormSchemaService.getUnlabeledConceptIdentifiersFromSchema(formSchema);
-  const conceptUrls = requiredConceptIdentifiers.map(
-    (identifier) => `/ws/rest/v1/concept/${identifier}?v=full&lang=${conceptLang}`,
+  const conceptUrls = ConceptService.getRelativeConceptLabelUrls(requiredConceptIdentifiers, conceptLang).map(
+    (relativeUrl) => `/ws/rest/v1/${relativeUrl}`,
   );
 
   return [

packages/esm-form-entry-app/src/app/services/concept.service.ts

@@ -30,17 +30,13 @@ export class ConceptService {
   }
 
   public searchBulkConceptByUUID(conceptUuids: Array<string>, lang: string): Observable<Array<ConceptMetadata>> {
-    const chunkSize = 100;
     const observablesArray = [];
-    const slicedConceptUuids = conceptUuids.reduceRight(
-      (acc, currentValue, i, array) => [...acc, array.splice(0, chunkSize)],
-      [],
-    );
+    const relativeConceptLabelUrls = ConceptService.getRelativeConceptLabelUrls(conceptUuids, lang);
 
-    for (const conceptUuidsChunk of slicedConceptUuids) {
+    for (const relativeConceptLabelUrl of relativeConceptLabelUrls) {
       observablesArray.push(
         this.http
-          .get<ListResult<ConceptMetadata>>(this.getUrl() + `?references=` + conceptUuidsChunk.join(','), {
+          .get<ListResult<ConceptMetadata>>(this.getUrl() + relativeConceptLabelUrl, {
             headers: this.headers,
           })
           .pipe(
@@ -57,4 +53,16 @@ export class ConceptService {
       }),
     );
   }
+
+  /**
+   * Partitions the given concept UUIDs into relative URLs pointing to the concept
+   * bulk fetching endpoint.
+   * @param conceptUuids The concept UUIDs to be partitioned into bulk fetching URLs.
+   */
+  public static getRelativeConceptLabelUrls(conceptUuids: Array<string>, lang: string) {
+    const chunkSize = 100;
+    return conceptUuids
+      .reduceRight((acc, _, __, array) => [...acc, array.splice(0, chunkSize)], [])
+      .map((uuidPartition) => `concept?references=${uuidPartition.join(',')}`);
+  }
 }