feat: add blob support

lib/utils.ts

@@ -11,11 +11,11 @@ function isEmptyObject<T>(obj: T | EmptyValue): obj is EmptyValue {
 // Mostly copied from https://medium.com/@lubaka.a/how-to-remove-lodash-performance-improvement-b306669ad0e1
 
 /**
- * Checks whether the given value can be merged. It has to be an object, but not an array, RegExp or Date.
+ * Checks whether the given value can be merged. It has to be an object, but not an array, RegExp, Date or Blob.
  */
 function isMergeableObject(value: unknown): value is Record<string, unknown> {
     const isNonNullObject = value != null ? typeof value === 'object' : false;
-    return isNonNullObject && !(value instanceof RegExp) && !(value instanceof Date) && !Array.isArray(value);
+    return isNonNullObject && !(value instanceof RegExp) && !(value instanceof Date) && !(value instanceof Blob) && !Array.isArray(value);
 }
 
 /**
@@ -106,7 +106,7 @@ function fastMerge<TValue>(target: TValue, source: TValue, shouldRemoveNestedNul
 
 /** Deep removes the nested null values from the given value. */
 function removeNestedNullValues<TValue extends OnyxInput<OnyxKey> | null>(value: TValue): TValue {
-    if (typeof value === 'object' && !Array.isArray(value)) {
+    if (isMergeableObject(value)) {
         const objectValue = value as Record<string, unknown>;
         return fastMerge(objectValue, objectValue) as TValue;
     }

tests/unit/onyxBlobTest.ts

@@ -0,0 +1,42 @@
+import type {Connection} from '../../lib';
+import Onyx from '../../lib/Onyx';
+
+// Define test keys
+const ONYX_KEYS = {
+    TEST_BLOB: 'testBlob',
+};
+
+describe('Onyx Blob Handling', () => {
+    let connection: Connection | undefined;
+
+    afterEach(() => {
+        if (connection) {
+            Onyx.disconnect(connection);
+        }
+        return Onyx.clear();
+    });
+
+    it('should store and retrieve a Blob with the correct content', async () => {
+        // Define the test content
+        const blobTestContent = 'test blob content';
+        let testBlobValue: unknown;
+
+        // Create a test Blob with the expected content
+        const testBlob = new Blob([blobTestContent], {type: 'text/plain'});
+
+        // Connect to the test key
+        connection = Onyx.connect({
+            key: ONYX_KEYS.TEST_BLOB,
+            initWithStoredValues: false,
+            callback: (value) => {
+                testBlobValue = value;
+            },
+        });
+
+        // Set the Blob value
+        await Onyx.set(ONYX_KEYS.TEST_BLOB, testBlob);
+
+        // Verify that the value is an instance of Blob
+        expect(testBlobValue instanceof Blob).toBeTruthy();
+    });
+});