axios-controller/axios-controller.js at main · Wiiseguy/axios-controller · GitHub

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const buildControllerDefaultOpts = {
    unwrap: true
};

/**
 * Unwrap an axios result object
 * @param {Promise<any>} promise
 * @returns
 */
function unwrap(promise) {
    if (!(promise instanceof Promise)) {
        return promise;
    }
    return promise
        .then(res => {
            return res ? res.data : null;
        })
        .catch(err => {
            if (err.response) {
                return Promise.reject(new Error(err.message, { cause: err.response.data }));
            } else {
                return Promise.reject(err);
            }
        });
}

/**
 * @param {string} url
 * @returns
 */
function removeLeadingSlashes(url) {
    if (typeof url !== 'string') return '';
    url = url.trimStart();
    return url.replace(/^\/+/, '');
}

/**
 * @param {string} url
 * @returns
 */
function removeTrailingSlashes(url) {
    if (typeof url !== 'string') return '';
    url = url.trimStart();
    return url.replace(/\/+$/, '');
}

/**
 * @param {string} url
 * @returns
 */
function removeLeadingAndTrailingSlashes(url) {
    url = removeLeadingSlashes(url);
    url = removeTrailingSlashes(url);
    return url;
}

/**
 * @param {string} url
 * @returns
 */
function appendSlash(url) {
    if (typeof url !== 'string') return '/';
    url = url.trimEnd();
    if (!url.endsWith('/')) return url + '/';
    return url;
}

/**
 * @param {string} url
 * @returns
 */
function toAbsoluteUrl(url) {
    const a = document.createElement('a');
    a.href = url;
    return a.href;
}

function createEmptyProxy() {
    return {};
}

/**
 *
 * @param {AxiosControllerHttp} proxy
 * @param {{ unwrap?: boolean }} [opts]
 * @returns
 */
function build(proxy, opts) {
    opts = {
        ...buildControllerDefaultOpts,
        ...opts
    };
    /** @type {(controller: any, fn?: any) => any} */
    return function (controller, fn) {
        fn = fn || createEmptyProxy;

        const ctrlProxy = {
            get(url = '', ...args) {
                return proxy.get(controller + '/' + url, ...args);
            },
            head(url = '', ...args) {
                return proxy.head(controller + '/' + url, ...args);
            },
            post(url = '', ...args) {
                if (typeof url !== 'string') {
                    args = [url];
                    url = '';
                }
                return proxy.post(controller + '/' + url, ...args);
            },
            put(url = '', ...args) {
                if (typeof url !== 'string') {
                    args = [url];
                    url = '';
                }
                return proxy.put(controller + '/' + url, ...args);
            },
            patch(url = '', ...args) {
                if (typeof url !== 'string') {
                    args = [url];
                    url = '';
                }
                return proxy.patch(controller + '/' + url, ...args);
            },
            delete(url = '', ...args) {
                return proxy.delete(controller + '/' + url, ...args);
            }
        };

        const ctrl = fn(ctrlProxy);
        if (opts.unwrap) {
            Object.entries(ctrl).forEach(([key, val]) => (ctrl[key] = (...args) => unwrap(val(...args))));
        }

        ctrl.getUri = (...args) => {
            const url =
                removeTrailingSlashes(controller) +
                '/' +
                args.map(u => removeLeadingAndTrailingSlashes(u)).join('/') +
                '';
            const baseUrl = removeTrailingSlashes(toAbsoluteUrl(proxy.defaults.baseURL));
            return new URL(removeLeadingSlashes(url), appendSlash(baseUrl)).toString();
        };

        return ctrl;
    };
}

module.exports = {
    unwrap,
    removeLeadingSlashes,
    removeTrailingSlashes,
    removeLeadingAndTrailingSlashes,
    appendSlash,

    buildController: build, // legacy
    build
};