Send Hooks

Sometimes you may want to modify the request data globally or to customize the response.

To accomplish this, the SDK provides 2 function hooks:

1. beforeSend

2. afterSend

beforeSend

• beforeSend - triggered right before sending the fetch request, allowing you to inspect/modify the request config.

const xg = new XGenClient({/* params */});

xg.beforeSend = function ({url, options}) {

    // For list of the possible request options properties check
    // https://developer.mozilla.org/en-US/docs/Web/API/fetch#options
    options.headers = Object.assign({}, options.headers, {
        'X-Custom-Header': 'example',
    });

    return { url, options };
};

afterSend

afterSend - triggered after successfully sending the fetch request, allowing you to inspect/modify the response object and its parsed data.

const xg = new XGenClient({/* params */});

xg.afterSend = function ({response, data}) {
    // do something with the response state

    console.log(response.status);

    return Object.assign(data, {
        // extend the data...
        "newField": "This is added to the data of the response",

    });
};