Return null if FastCache item does not exist

src/fastcache.test.ts

@@ -15,10 +15,20 @@ describe('FastCache', () => {
 
     const item = await fastcache.get('key');
 
-    expect(item.key).toBe('key');
-    expect(item.value).toBe('value');
-    expect(item.expiration).toBe(1234567890);
-    expect(item.byteSize).toBe(6);
+    expect(item).not.toBeNull();
+
+    expect(item?.key).toBe('key');
+    expect(item?.value).toBe('value');
+    expect(item?.expiration).toBe(1234567890);
+    expect(item?.byteSize).toBe(6);
+  });
+
+  it('should return null if the item does not exist', async () => {
+    mock.onGet('/fastcache?key=key').reply(404);
+
+    const item = await fastcache.get('key');
+
+    expect(item).toBeNull();
   });
 
   it('should be able to set a FastCache item', async () => {

src/fastcache.ts

@@ -34,13 +34,21 @@ export default class FastCache {
    * Required API Key permission: `fastcache:read`
    *
    * @param key The key of the FastCache item
-   * @returns The FastCache item
+   * @returns The FastCache item. Returns null if the item does not exist.
    * @see https://docs.gigadrive.network/products/fastcache#retrieve-an-item
    */
-  async get(key: string): Promise<FastCacheItem> {
-    const { data } = await this.axios.get(`/fastcache?key=${key}`);
+  async get(key: string): Promise<FastCacheItem | null> {
+    try {
+      const { data } = await this.axios.get(`/fastcache?key=${key}`);
 
-    return data;
+      return data;
+    } catch (e) {
+      if (e.response.status === 404) {
+        return null;
+      }
+
+      throw e;
+    }
   }
 
   /**