# FundingSourceDex.from

Creates a native DEX source for funding, policy rules, or discovery.

## Imports

:::code-group
```ts [Named]
import { FundingSourceDex } from 'ox/tempo'
```

```ts [Entrypoint]
import * as FundingSourceDex from 'ox/tempo/FundingSourceDex'
```
:::

## Examples

```ts
import { FundingSourceDex } from 'ox/tempo'

FundingSourceDex.from({
  maxAmountIn: 30_000_000n,
  tokenIn: '0x20c0000000000000000000000000000000000000'
})
```

## Definition

```ts
function from(
  request: FundingSourceDex.Request,
): {
    data: `0x${string}`;
    target: "0x1120000000000000000000000000000000000001";
}
```

**Source:** [src/tempo/FundingSourceDex.ts](https://github.com/wevm/ox/blob/main/src/tempo/FundingSourceDex.ts#L30)

## Parameters

### request

* **Type:** [`FundingSourceDex.Request`](/tempo/reference/FundingSourceDex/types#fundingsourcedexrequest)

#### request.maxAmountIn

* **Type:** `bigint`
* **Optional**

Input cap in base units. Omission is unlimited; zero permits no input.

#### request.tokenIn

* **Type:** `abitype_Address`

Input token to exchange for the required token.

## Return Type

`{
    data: `0x${string}`;
    target: "0x1120000000000000000000000000000000000001";
}`