src/app/util/http/http.util.ts

/********************************************************************************
 * Copyright (c) 2020 Contributors to the Eclipse Foundation
 *
 * See the NOTICE file(s) distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0
 *
 * SPDX-License-Identifier: EPL-2.0
 ********************************************************************************/

import {HttpErrorResponse} from "@angular/common/http";
import {EHttpStatusCodes} from "./EHttpStatusCodes";

export function isHttpErrorWithStatus(error: any, ...status: EHttpStatusCodes[]): boolean {
    return error instanceof HttpErrorResponse
        && (status == null || status.find((s) => error.status === s) != null);
}

export function urlJoin(...args: string[]): string {
    let result = args.length === 0 ? "" : args.reduce((previous, current) => previous + "/" + current);
    const indexOfProtocol = result.indexOf("://");
    const protocol = indexOfProtocol === -1 ? "" : result.slice(0, indexOfProtocol);

    result = indexOfProtocol === -1 ? result : result.slice(indexOfProtocol + 2);

    while (result.indexOf("//") > -1) {
        result = result.replace("//", "/");
    }

    return indexOfProtocol === -1 ? result : protocol + ":/" + result;
}

export function objectToHttpParams<T extends object>(
    object: { [key: string]: string | number | Array<string | number> }
): { [key: string]: string | string[] } {
    if (object == null) {
        return {};
    }
    const result: { [key: string]: string | string[] } = {};
    Object.entries(object)
        .filter(([key, value]) => value != null)
        .forEach(([key, value]) => {
            result[key] = Array.isArray(value) ? value.map((_) => "" + _) : "" + value;
        });
    return result;
}