## MedplumClient.isLoading() method [​](/content/docs/sdk/core.medplumclient.isloading#medplumclientisloading-method "Direct link to MedplumClient.isLoading(/index.html) method")

Returns true if the client is waiting for initial authentication.

**Signature:**

```typescript
isLoading(): boolean;
```

**Returns:**

boolean

True if the client is waiting for initial authentication.

- [MedplumClient.isLoading() method](/content/docs/sdk/core.medplumclient.isloading#medplumclientisloading-method/index.html)