veritatisdoloremque/docs-exp/auth-types.operationtype.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/auth-types](./auth-types.md) &gt; [OperationType](./auth-types.operationtype.md)

## OperationType enum

Enumeration of supported operation types.

<b>Signature:</b>

```typescript
export const enum OperationType 
```

## Enumeration Members

|  Member | Value | Description |
|  --- | --- | --- |
|  LINK | <code>'link'</code> | Operation involving linking an additional provider to an already signed-in user. |
|  REAUTHENTICATE | <code>'reauthenticate'</code> | Operation involving using a provider to reauthenticate an already signed-in user. |
|  SIGN\_IN | <code>'signIn'</code> | Operation involving signing in a user. |