Function throwIfDataError

packages/gitbook/src/lib/data/errors.ts:20–31

(
    response: DataFetcherResponse<T> | Promise<DataFetcherResponse<T>>
)

export function throwIfDataError<T>(response: DataFetcherResponse<T>): T;
export function throwIfDataError<T>(response: Promise<DataFetcherResponse<T>>): Promise<T>;
export function throwIfDataError<T>(
    response: DataFetcherResponse<T> | Promise<DataFetcherResponse<T>>
): T | Promise<T> {
    if (response instanceof Promise) {
        return response.then((result) => throwIfDataError(result));
    }

    if (response.error) {
        throw new DataFetcherError(response.error.message, response.error.code);
    }
    return response.data;
}

/**
 * Get the data from the response or null if there is an "Not found" error.