Add user repository

frontend/repositories/user/api.ts

@@ -0,0 +1,16 @@
+import ApiService from '@/services/api.service'
+import { UserItem } from '@/models/user'
+import { UserItemListRepository, UserItemResponse } from './interface'
+
+export class FromApiUserItemListRepository implements UserItemListRepository {
+  constructor(
+    private readonly request = ApiService
+  ) {}
+
+  async list(query: string): Promise<UserItem[]> {
+    const url = `/users?q=${query}`
+    const response = await this.request.get(url)
+    const responseItems: UserItemResponse[] = response.data
+    return responseItems.map(item => UserItem.valueOf(item))
+  }
+}

frontend/repositories/user/interface.ts

@@ -0,0 +1,11 @@
+import { UserItem } from '@/models/user'
+
+export interface UserItemResponse {
+  id: number,
+  username: string,
+  is_superuser: boolean
+}
+
+export interface UserItemListRepository {
+  list(query: string): Promise<UserItem[]>
+}