## ReadablePromise.isOk() method [​](/content/docs/sdk/core.readablepromise.isok#readablepromiseisok-method "Direct link to ReadablePromise.isOk(/index.html) method")

Returns true if the promise resolved successfully.

**Signature:**

```typescript
isOk(): boolean;
```

**Returns:**

boolean

True if the Promise resolved successfully.

- [ReadablePromise.isOk() method](/content/docs/sdk/core.readablepromise.isok#readablepromiseisok-method/index.html)