appbaseio/dejaVu

import {
    parseUrl,
    getCustomHeaders,
    convertArrayToHeaders,
    getHeaders,
} from '../utils';
import CustomError from '../utils/CustomError';

const getCount = async (app, type, rawUrl, version) => {
    const defaultError = 'Unable to get count';
    try {
        const { url } = parseUrl(rawUrl);
        const headers = getHeaders(rawUrl);
        const customHeaders = getCustomHeaders(app);

        let updatedUrl = `${url}/${app}/_count`;

        // types were removed in ES 7
        if (version === 5 || version === 6) {
            updatedUrl = `${url}/${app}/${type}/_count`;
        }

        const res = await fetch(updatedUrl, {
            headers: {
                ...headers,
                ...convertArrayToHeaders(customHeaders),
            },
            method: 'GET',
        }).then(response => response.json());

        if (res.status >= 400) {
            throw new CustomError(
                JSON.stringify(res.error || res, null, 2),
                `HTTP STATUS: ${res.status} - ${res.message || defaultError}`,
            );
        }
        return res;
    } catch (error) {
        const errorMessage = error.message || defaultError;

        throw new CustomError(
            error.description || errorMessage,
            errorMessage,
            error.stack,
        );
    }
};

export default getCount;