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# Enabling authentication

The next improvement will be quite simple. We'll allow authentication in the Swagger UI, and also enable it for all the routes automatically. Let's then go back to the <mark style="color:purple;">main</mark> file.

To enable authentication, add the following just before the <mark style="color:blue;">`setVersion()`</mark> call.

```typescript
.addBearerAuth()
```

And to enable it for all the routes, also add after it:

```typescript
.addSecurityRequirements('bearer')
```

With this, we can access protected routes in the Swagger UI.

<mark style="color:green;">**Commit**</mark> - Enabling bearer auth in swagger


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