diff --git a/src/client/dd-hub-react/src/_mock/_data.ts b/src/client/dd-hub-react/src/_mock/_data.ts
index ef33292..dd964ca 100644
--- a/src/client/dd-hub-react/src/_mock/_data.ts
+++ b/src/client/dd-hub-react/src/_mock/_data.ts
@@ -261,7 +261,7 @@ function base64ToUint8Array(base64: string): Uint8Array {
   return bytes;
 }
 
-export const documents: Doc[] = [
+export const _documents: Doc[] = [
   {
     id: 1,
     name: "example1.pdf",
diff --git a/src/client/dd-hub-react/src/api/document-service.ts b/src/client/dd-hub-react/src/api/document-service.ts
index 9d65c33..199cb69 100644
--- a/src/client/dd-hub-react/src/api/document-service.ts
+++ b/src/client/dd-hub-react/src/api/document-service.ts
@@ -1,5 +1,32 @@
+import { _documents } from "src/_mock"
+
 export type Doc = {
     id: number,
     name: string,
     data: Uint8Array
+}
+
+export type DocQuery = {
+    id?: number | undefined,
+    name?: string | undefined
+}
+
+export function getDocuments({ id, name }: DocQuery): Promise<Doc[]> {
+    let documents = _documents;
+
+    if (id)
+        documents = documents.filter(d => d.id = id)
+
+    if (name)
+        documents = documents.filter(d => d.name = name)
+
+    return Promise.resolve(documents);
+}
+
+export function getDocumentById(id: number): Promise<Doc[]> {
+    return getDocuments({ id: id });
+}
+
+export function getDocumentByName(name: string): Promise<Doc[]> {
+    return getDocuments({ name: name });
 }
\ No newline at end of file