voluptasmollitia/docs-exp/storage.storageobserver.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/storage](./storage.md) &gt; [StorageObserver](./storage.storageobserver.md)

## StorageObserver interface

A stream observer for Firebase Storage.

<b>Signature:</b>

```typescript
export interface StorageObserver<T> 
```

## Properties

|  Property | Type | Description |
|  --- | --- | --- |
|  [complete?](./storage.storageobserver.complete.md) | CompleteFn \| null | <i>(Optional)</i> |
|  [error?](./storage.storageobserver.error.md) | (error: [FirebaseStorageError](./storage.firebasestorageerror.md)<!-- -->) =&gt; void \| null | <i>(Optional)</i> |
|  [next?](./storage.storageobserver.next.md) | NextFn&lt;T&gt; \| null | <i>(Optional)</i> |