# mutationOptions

## Call Signature

```ts
function mutationOptions<TData, TError, TVariables, TOnMutateResult>(options): WithRequired<CreateMutationOptions<TData, TError, TVariables, TOnMutateResult>, "mutationKey">;
```

Defined in: [packages/svelte-query/src/mutationOptions.ts:34](https://github.com/TanStack/query/blob/main/packages/svelte-query/src/mutationOptions.ts#L34)

You can generally pass everything to `mutationOptions` that you can also pass to `createMutation`. This
overload requires `mutationKey`, so the resulting options can be looked up elsewhere (e.g. with
`useMutationState`).

### Type Parameters

#### TData

`TData` = `unknown`

#### TError

`TError` = `Error`

#### TVariables

`TVariables` = `void`

#### TOnMutateResult

`TOnMutateResult` = `unknown`

### Parameters

#### options

[`WithRequired`](../type-aliases/WithRequired.md)\<[`CreateMutationOptions`](../type-aliases/CreateMutationOptions.md)\<`TData`, `TError`, `TVariables`, `TOnMutateResult`\>, `"mutationKey"`\>

The options to use — everything you can pass to `createMutation`, with `mutationKey` set.

### Returns

[`WithRequired`](../type-aliases/WithRequired.md)\<[`CreateMutationOptions`](../type-aliases/CreateMutationOptions.md)\<`TData`, `TError`, `TVariables`, `TOnMutateResult`\>, `"mutationKey"`\>

The same options object.

### See

[createMutation](createMutation.md) to run a mutation with these options.

### Example

Looking the mutation up elsewhere via its `mutationKey`, e.g. for a global "saving…" indicator:
```svelte
<script lang="ts">
  import { mutationOptions, useMutationState } from '@tanstack/svelte-query'

  const createPostOptions = mutationOptions({
    mutationKey: ['posts', 'create'],
    mutationFn: createPost,
  })

  const pending = useMutationState({
    filters: { mutationKey: createPostOptions.mutationKey, status: 'pending' },
  })
</script>

{#if pending.length > 0}
  <span>Saving…</span>
{/if}
```

## Call Signature

```ts
function mutationOptions<TData, TError, TVariables, TOnMutateResult>(options): Omit<CreateMutationOptions<TData, TError, TVariables, TOnMutateResult>, "mutationKey">;
```

Defined in: [packages/svelte-query/src/mutationOptions.ts:71](https://github.com/TanStack/query/blob/main/packages/svelte-query/src/mutationOptions.ts#L71)

You can generally pass everything to `mutationOptions` that you can also pass to `createMutation`.

### Type Parameters

#### TData

`TData` = `unknown`

#### TError

`TError` = `Error`

#### TVariables

`TVariables` = `void`

#### TOnMutateResult

`TOnMutateResult` = `unknown`

### Parameters

#### options

`Omit`\<[`CreateMutationOptions`](../type-aliases/CreateMutationOptions.md)\<`TData`, `TError`, `TVariables`, `TOnMutateResult`\>, `"mutationKey"`\>

The options to use — everything you can pass to `createMutation`.

### Returns

`Omit`\<[`CreateMutationOptions`](../type-aliases/CreateMutationOptions.md)\<`TData`, `TError`, `TVariables`, `TOnMutateResult`\>, `"mutationKey"`\>

The same options object.

### See

[createMutation](createMutation.md) to run a mutation with these options.

### Example

```svelte
<script lang="ts">
  import { mutationOptions, createMutation } from '@tanstack/svelte-query'

  const createPostOptions = mutationOptions({
    mutationFn: createPost,
  })

  const mutation = createMutation(() => createPostOptions)
</script>

<button onclick={() => mutation.mutate({ title: 'Hello' })}>Create</button>
```