How can I process API response before it goes to the reducer?

How can I process results from an API call before they go to the reducer?

Below is a standard example of a "create" action in a redux module. This boilerplate defines client.post() to only take a param for URL, and another for data. Where would code go to process the response?

```
export function create() {
return {
types: [CREATE, CREATE_SUCCESS, CREATE_FAIL],
promise: (client) => {
return client.post('/charts.json', {
data: {
chart: {
title: null
}
});
}
};
}
```

Start with the create action shown in the issue and trace the CREATE, CREATE_SUCCESS, and CREATE_FAIL lifecycle through the reducer. The issue does not name a file, test, or specific transformation, so the desired response processing and completion criteria need clarification before implementation.

Written by the indexing model from the issue text.