@angular/common
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Angular - commonly needed directives and services
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JavaScript
/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import * as tslib_1 from "tslib";
import { HttpHeaders } from './headers';
/**
* Type enumeration for the different kinds of `HttpEvent`.
*
* @publicApi
*/
export var HttpEventType;
(function (HttpEventType) {
/**
* The request was sent out over the wire.
*/
HttpEventType[HttpEventType["Sent"] = 0] = "Sent";
/**
* An upload progress event was received.
*/
HttpEventType[HttpEventType["UploadProgress"] = 1] = "UploadProgress";
/**
* The response status code and headers were received.
*/
HttpEventType[HttpEventType["ResponseHeader"] = 2] = "ResponseHeader";
/**
* A download progress event was received.
*/
HttpEventType[HttpEventType["DownloadProgress"] = 3] = "DownloadProgress";
/**
* The full response including the body was received.
*/
HttpEventType[HttpEventType["Response"] = 4] = "Response";
/**
* A custom event from an interceptor or a backend.
*/
HttpEventType[HttpEventType["User"] = 5] = "User";
})(HttpEventType || (HttpEventType = {}));
/**
* Base class for both `HttpResponse` and `HttpHeaderResponse`.
*
* @publicApi
*/
var HttpResponseBase = /** @class */ (function () {
/**
* Super-constructor for all responses.
*
* The single parameter accepted is an initialization hash. Any properties
* of the response passed there will override the default values.
*/
function HttpResponseBase(init, defaultStatus, defaultStatusText) {
if (defaultStatus === void 0) { defaultStatus = 200; }
if (defaultStatusText === void 0) { defaultStatusText = 'OK'; }
// If the hash has values passed, use them to initialize the response.
// Otherwise use the default values.
this.headers = init.headers || new HttpHeaders();
this.status = init.status !== undefined ? init.status : defaultStatus;
this.statusText = init.statusText || defaultStatusText;
this.url = init.url || null;
// Cache the ok value to avoid defining a getter.
this.ok = this.status >= 200 && this.status < 300;
}
return HttpResponseBase;
}());
export { HttpResponseBase };
/**
* A partial HTTP response which only includes the status and header data,
* but no response body.
*
* `HttpHeaderResponse` is a `HttpEvent` available on the response
* event stream, only when progress events are requested.
*
* @publicApi
*/
var HttpHeaderResponse = /** @class */ (function (_super) {
tslib_1.__extends(HttpHeaderResponse, _super);
/**
* Create a new `HttpHeaderResponse` with the given parameters.
*/
function HttpHeaderResponse(init) {
if (init === void 0) { init = {}; }
var _this = _super.call(this, init) || this;
_this.type = HttpEventType.ResponseHeader;
return _this;
}
/**
* Copy this `HttpHeaderResponse`, overriding its contents with the
* given parameter hash.
*/
HttpHeaderResponse.prototype.clone = function (update) {
if (update === void 0) { update = {}; }
// Perform a straightforward initialization of the new HttpHeaderResponse,
// overriding the current parameters with new ones if given.
return new HttpHeaderResponse({
headers: update.headers || this.headers,
status: update.status !== undefined ? update.status : this.status,
statusText: update.statusText || this.statusText,
url: update.url || this.url || undefined,
});
};
return HttpHeaderResponse;
}(HttpResponseBase));
export { HttpHeaderResponse };
/**
* A full HTTP response, including a typed response body (which may be `null`
* if one was not returned).
*
* `HttpResponse` is a `HttpEvent` available on the response event
* stream.
*
* @publicApi
*/
var HttpResponse = /** @class */ (function (_super) {
tslib_1.__extends(HttpResponse, _super);
/**
* Construct a new `HttpResponse`.
*/
function HttpResponse(init) {
if (init === void 0) { init = {}; }
var _this = _super.call(this, init) || this;
_this.type = HttpEventType.Response;
_this.body = init.body !== undefined ? init.body : null;
return _this;
}
HttpResponse.prototype.clone = function (update) {
if (update === void 0) { update = {}; }
return new HttpResponse({
body: (update.body !== undefined) ? update.body : this.body,
headers: update.headers || this.headers,
status: (update.status !== undefined) ? update.status : this.status,
statusText: update.statusText || this.statusText,
url: update.url || this.url || undefined,
});
};
return HttpResponse;
}(HttpResponseBase));
export { HttpResponse };
/**
* A response that represents an error or failure, either from a
* non-successful HTTP status, an error while executing the request,
* or some other failure which occurred during the parsing of the response.
*
* Any error returned on the `Observable` response stream will be
* wrapped in an `HttpErrorResponse` to provide additional context about
* the state of the HTTP layer when the error occurred. The error property
* will contain either a wrapped Error object or the error response returned
* from the server.
*
* @publicApi
*/
var HttpErrorResponse = /** @class */ (function (_super) {
tslib_1.__extends(HttpErrorResponse, _super);
function HttpErrorResponse(init) {
var _this =
// Initialize with a default status of 0 / Unknown Error.
_super.call(this, init, 0, 'Unknown Error') || this;
_this.name = 'HttpErrorResponse';
/**
* Errors are never okay, even when the status code is in the 2xx success range.
*/
_this.ok = false;
// If the response was successful, then this was a parse error. Otherwise, it was
// a protocol-level failure of some sort. Either the request failed in transit
// or the server returned an unsuccessful status code.
if (_this.status >= 200 && _this.status < 300) {
_this.message = "Http failure during parsing for " + (init.url || '(unknown url)');
}
else {
_this.message =
"Http failure response for " + (init.url || '(unknown url)') + ": " + init.status + " " + init.statusText;
}
_this.error = init.error || null;
return _this;
}
return HttpErrorResponse;
}(HttpResponseBase));
export { HttpErrorResponse };
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All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {HttpHeaders} from './headers';\n\n/**\n * Type enumeration for the different kinds of `HttpEvent`.\n *\n * @publicApi\n */\nexport enum HttpEventType {\n  /**\n   * The request was sent out over the wire.\n   */\n  Sent,\n\n  /**\n   * An upload progress event was received.\n   */\n  UploadProgress,\n\n  /**\n   * The response status code and headers were received.\n   */\n  ResponseHeader,\n\n  /**\n   * A download progress event was received.\n   */\n  DownloadProgress,\n\n  /**\n   * The full response including the body was received.\n   */\n  Response,\n\n  /**\n   * A custom event from an interceptor or a backend.\n   */\n  User,\n}\n\n/**\n * Base interface for progress events.\n *\n * @publicApi\n */\nexport interface HttpProgressEvent {\n  /**\n   * Progress event type is either upload or download.\n   */\n  type: HttpEventType.DownloadProgress|HttpEventType.UploadProgress;\n\n  /**\n   * Number of bytes uploaded or downloaded.\n   */\n  loaded: number;\n\n  /**\n   * Total number of bytes to upload or download. Depending on the request or\n   * response, this may not be computable and thus may not be present.\n   */\n  total?: number;\n}\n\n/**\n * A download progress event.\n *\n * @publicApi\n */\nexport interface HttpDownloadProgressEvent extends HttpProgressEvent {\n  type: HttpEventType.DownloadProgress;\n\n  /**\n   * The partial response body as downloaded so far.\n   *\n   * Only present if the responseType was `text`.\n   */\n  partialText?: string;\n}\n\n/**\n * An upload progress event.\n *\n * @publicApi\n */\nexport interface HttpUploadProgressEvent extends HttpProgressEvent {\n  type: HttpEventType.UploadProgress;\n}\n\n/**\n * An event indicating that the request was sent to the server. Useful\n * when a request may be retried multiple times, to distinguish between\n * retries on the final event stream.\n *\n * @publicApi\n */\nexport interface HttpSentEvent { type: HttpEventType.Sent; }\n\n/**\n * A user-defined event.\n *\n * Grouping all custom events under this type ensures they will be handled\n * and forwarded by all implementations of interceptors.\n *\n * @publicApi\n */\nexport interface HttpUserEvent<T> { type: HttpEventType.User; }\n\n/**\n * An error that represents a failed attempt to JSON.parse text coming back\n * from the server.\n *\n * It bundles the Error object with the actual response body that failed to parse.\n *\n *\n */\nexport interface HttpJsonParseError {\n  error: Error;\n  text: string;\n}\n\n/**\n * Union type for all possible events on the response stream.\n *\n * Typed according to the expected type of the response.\n *\n * @publicApi\n */\nexport type HttpEvent<T> =\n    HttpSentEvent | HttpHeaderResponse | HttpResponse<T>| HttpProgressEvent | HttpUserEvent<T>;\n\n/**\n * Base class for both `HttpResponse` and `HttpHeaderResponse`.\n *\n * @publicApi\n */\nexport abstract class HttpResponseBase {\n  /**\n   * All response headers.\n   */\n  readonly headers: HttpHeaders;\n\n  /**\n   * Response status code.\n   */\n  readonly status: number;\n\n  /**\n   * Textual description of response status code.\n   *\n   * Do not depend on this.\n   */\n  readonly statusText: string;\n\n  /**\n   * URL of the resource retrieved, or null if not available.\n   */\n  readonly url: string|null;\n\n  /**\n   * Whether the status code falls in the 2xx range.\n   */\n  readonly ok: boolean;\n\n  /**\n   * Type of the response, narrowed to either the full response or the header.\n   */\n  // TODO(issue/24571): remove '!'.\n  readonly type !: HttpEventType.Response | HttpEventType.ResponseHeader;\n\n  /**\n   * Super-constructor for all responses.\n   *\n   * The single parameter accepted is an initialization hash. Any properties\n   * of the response passed there will override the default values.\n   */\n  constructor(\n      init: {\n        headers?: HttpHeaders,\n        status?: number,\n        statusText?: string,\n        url?: string,\n      },\n      defaultStatus: number = 200, defaultStatusText: string = 'OK') {\n    // If the hash has values passed, use them to initialize the response.\n    // Otherwise use the default values.\n    this.headers = init.headers || new HttpHeaders();\n    this.status = init.status !== undefined ? init.status : defaultStatus;\n    this.statusText = init.statusText || defaultStatusText;\n    this.url = init.url || null;\n\n    // Cache the ok value to avoid defining a getter.\n    this.ok = this.status >= 200 && this.status < 300;\n  }\n}\n\n/**\n * A partial HTTP response which only includes the status and header data,\n * but no response body.\n *\n * `HttpHeaderResponse` is a `HttpEvent` available on the response\n * event stream, only when progress events are requested.\n *\n * @publicApi\n */\nexport class HttpHeaderResponse extends HttpResponseBase {\n  /**\n   * Create a new `HttpHeaderResponse` with the given parameters.\n   */\n  constructor(init: {\n    headers?: HttpHeaders,\n    status?: number,\n    statusText?: string,\n    url?: string,\n  } = {}) {\n    super(init);\n  }\n\n  readonly type: HttpEventType.ResponseHeader = HttpEventType.ResponseHeader;\n\n  /**\n   * Copy this `HttpHeaderResponse`, overriding its contents with the\n   * given parameter hash.\n   */\n  clone(update: {headers?: HttpHeaders; status?: number; statusText?: string; url?: string;} = {}):\n      HttpHeaderResponse {\n    // Perform a straightforward initialization of the new HttpHeaderResponse,\n    // overriding the current parameters with new ones if given.\n    return new HttpHeaderResponse({\n      headers: update.headers || this.headers,\n      status: update.status !== undefined ? update.status : this.status,\n      statusText: update.statusText || this.statusText,\n      url: update.url || this.url || undefined,\n    });\n  }\n}\n\n/**\n * A full HTTP response, including a typed response body (which may be `null`\n * if one was not returned).\n *\n * `HttpResponse` is a `HttpEvent` available on the response event\n * stream.\n *\n * @publicApi\n */\nexport class HttpResponse<T> extends HttpResponseBase {\n  /**\n   * The response body, or `null` if one was not returned.\n   */\n  readonly body: T|null;\n\n  /**\n   * Construct a new `HttpResponse`.\n   */\n  constructor(init: {\n    body?: T | null, headers?: HttpHeaders; status?: number; statusText?: string; url?: string;\n  } = {}) {\n    super(init);\n    this.body = init.body !== undefined ? init.body : null;\n  }\n\n  readonly type: HttpEventType.Response = HttpEventType.Response;\n\n  clone(): HttpResponse<T>;\n  clone(update: {headers?: HttpHeaders; status?: number; statusText?: string; url?: string;}):\n      HttpResponse<T>;\n  clone<V>(update: {\n    body?: V | null, headers?: HttpHeaders; status?: number; statusText?: string; url?: string;\n  }): HttpResponse<V>;\n  clone(update: {\n    body?: any | null; headers?: HttpHeaders; status?: number; statusText?: string; url?: string;\n  } = {}): HttpResponse<any> {\n    return new HttpResponse<any>({\n      body: (update.body !== undefined) ? update.body : this.body,\n      headers: update.headers || this.headers,\n      status: (update.status !== undefined) ? update.status : this.status,\n      statusText: update.statusText || this.statusText,\n      url: update.url || this.url || undefined,\n    });\n  }\n}\n\n/**\n * A response that represents an error or failure, either from a\n * non-successful HTTP status, an error while executing the request,\n * or some other failure which occurred during the parsing of the response.\n *\n * Any error returned on the `Observable` response stream will be\n * wrapped in an `HttpErrorResponse` to provide additional context about\n * the state of the HTTP layer when the error occurred. The error property\n * will contain either a wrapped Error object or the error response returned\n * from the server.\n *\n * @publicApi\n */\nexport class HttpErrorResponse extends HttpResponseBase implements Error {\n  readonly name = 'HttpErrorResponse';\n  readonly message: string;\n  readonly error: any|null;\n\n  /**\n   * Errors are never okay, even when the status code is in the 2xx success range.\n   */\n  readonly ok = false;\n\n  constructor(init: {\n    error?: any; headers?: HttpHeaders; status?: number; statusText?: string; url?: string;\n  }) {\n    // Initialize with a default status of 0 / Unknown Error.\n    super(init, 0, 'Unknown Error');\n\n    // If the response was successful, then this was a parse error. Otherwise, it was\n    // a protocol-level failure of some sort. Either the request failed in transit\n    // or the server returned an unsuccessful status code.\n    if (this.status >= 200 && this.status < 300) {\n      this.message = `Http failure during parsing for ${init.url || '(unknown url)'}`;\n    } else {\n      this.message =\n          `Http failure response for ${init.url || '(unknown url)'}: ${init.status} ${init.statusText}`;\n    }\n    this.error = init.error || null;\n  }\n}\n"]}