Allow search recommendations with wildcard

packages/api/src/elastic/pages.ts

@@ -187,14 +187,23 @@ const appendIdsFilter = (body: SearchBody, ids: string[]): void => {
 }
 
 const appendRecommendedBy = (body: SearchBody, recommendedBy: string): void => {
+  const query =
+    recommendedBy === '*'
+      ? {
+          exists: {
+            field: 'recommendations',
+          },
+        }
+      : {
+          term: {
+            'recommendations.name': recommendedBy,
+          },
+        }
+
   body.query.bool.must.push({
     nested: {
       path: 'recommendations',
-      query: {
-        term: {
-          'recommendations.name': recommendedBy,
-        },
-      },
+      query,
     },
   })
 }

packages/api/src/elastic/types.ts

@@ -55,7 +55,10 @@ export interface SearchBody {
             nested: {
               path: 'recommendations'
               query: {
-                term: {
+                exists?: {
+                  field: string
+                }
+                term?: {
                   'recommendations.name': string
                 }
               }