httpHeaders.js

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
/**
 * A collection of HttpHeaders that can be sent with a HTTP request.
 */
function getHeaderKey(headerName) {
    return headerName.toLowerCase();
}
export function isHttpHeadersLike(object) {
    if (!object || typeof object !== "object") {
        return false;
    }
    if (typeof object.rawHeaders === "function" &&
        typeof object.clone === "function" &&
        typeof object.get === "function" &&
        typeof object.set === "function" &&
        typeof object.contains === "function" &&
        typeof object.remove === "function" &&
        typeof object.headersArray === "function" &&
        typeof object.headerValues === "function" &&
        typeof object.headerNames === "function" &&
        typeof object.toJson === "function") {
        return true;
    }
    return false;
}
/**
 * A collection of HTTP header key/value pairs.
 */
var HttpHeaders = /** @class */ (function () {
    function HttpHeaders(rawHeaders) {
        this._headersMap = {};
        if (rawHeaders) {
            for (var headerName in rawHeaders) {
                this.set(headerName, rawHeaders[headerName]);
            }
        }
    }
    /**
     * Set a header in this collection with the provided name and value. The name is
     * case-insensitive.
     * @param headerName The name of the header to set. This value is case-insensitive.
     * @param headerValue The value of the header to set.
     */
    HttpHeaders.prototype.set = function (headerName, headerValue) {
        this._headersMap[getHeaderKey(headerName)] = {
            name: headerName,
            value: headerValue.toString(),
        };
    };
    /**
     * Get the header value for the provided header name, or undefined if no header exists in this
     * collection with the provided name.
     * @param headerName The name of the header.
     */
    HttpHeaders.prototype.get = function (headerName) {
        var header = this._headersMap[getHeaderKey(headerName)];
        return !header ? undefined : header.value;
    };
    /**
     * Get whether or not this header collection contains a header entry for the provided header name.
     */
    HttpHeaders.prototype.contains = function (headerName) {
        return !!this._headersMap[getHeaderKey(headerName)];
    };
    /**
     * Remove the header with the provided headerName. Return whether or not the header existed and
     * was removed.
     * @param headerName The name of the header to remove.
     */
    HttpHeaders.prototype.remove = function (headerName) {
        var result = this.contains(headerName);
        delete this._headersMap[getHeaderKey(headerName)];
        return result;
    };
    /**
     * Get the headers that are contained this collection as an object.
     */
    HttpHeaders.prototype.rawHeaders = function () {
        var result = {};
        for (var headerKey in this._headersMap) {
            var header = this._headersMap[headerKey];
            result[header.name.toLowerCase()] = header.value;
        }
        return result;
    };
    /**
     * Get the headers that are contained in this collection as an array.
     */
    HttpHeaders.prototype.headersArray = function () {
        var headers = [];
        for (var headerKey in this._headersMap) {
            headers.push(this._headersMap[headerKey]);
        }
        return headers;
    };
    /**
     * Get the header names that are contained in this collection.
     */
    HttpHeaders.prototype.headerNames = function () {
        var headerNames = [];
        var headers = this.headersArray();
        for (var i = 0; i < headers.length; ++i) {
            headerNames.push(headers[i].name);
        }
        return headerNames;
    };
    /**
     * Get the header names that are contained in this collection.
     */
    HttpHeaders.prototype.headerValues = function () {
        var headerValues = [];
        var headers = this.headersArray();
        for (var i = 0; i < headers.length; ++i) {
            headerValues.push(headers[i].value);
        }
        return headerValues;
    };
    /**
     * Get the JSON object representation of this HTTP header collection.
     */
    HttpHeaders.prototype.toJson = function () {
        return this.rawHeaders();
    };
    /**
     * Get the string representation of this HTTP header collection.
     */
    HttpHeaders.prototype.toString = function () {
        return JSON.stringify(this.toJson());
    };
    /**
     * Create a deep clone/copy of this HttpHeaders collection.
     */
    HttpHeaders.prototype.clone = function () {
        return new HttpHeaders(this.rawHeaders());
    };
    return HttpHeaders;
}());
export { HttpHeaders };
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