cacheability - npm Package Compare versions

Comparing version 0.0.6 to 0.0.7

lib/browser/cacheability.min.js

@@ -1,2 +0,2 @@
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 //# sourceMappingURL=cacheability.min.js.map

lib/main/index.d.ts

 import "isomorphic-fetch";
-import { Metadata, ObjectStringMap } from "./types";
+import { Metadata } from "./types";
 export default class Cacheability {
+    private static _headerKeys;
     private static _getDirectives(cacheControl);
-    private static _parseCacheControl(cacheControl?);
-    private static _setTTL(cacheControl?);
-    private _headerKeys;
+    private static _parseCacheControl(cacheControl);
+    private static _parseHeaders(headers);
+    private static _setTTL({maxAge, sMaxage});
     private _metadata;
-    readonly metadata: Metadata;
+    metadata: Metadata;
     checkTTL(): boolean;
     parseCacheControl(cacheControl: string): Metadata;
-    parseHeaders(headers: Headers | ObjectStringMap): Metadata;
-    printCacheControl(): string | undefined;
-    setMetadata(metadata?: Metadata): void;
-    private _parseHeaders(headers);
+    parseHeaders(headers: Headers): Metadata;
+    printCacheControl(): string;
 }

lib/main/index.js

@@ -16,3 +16,3 @@ "use strict";
 
-var _isPlainObject2 = _interopRequireDefault(require("lodash/isPlainObject"));
+var _isNumber2 = _interopRequireDefault(require("lodash/isNumber"));
 
@@ -35,7 +35,2 @@ var _isBoolean2 = _interopRequireDefault(require("lodash/isBoolean"));
 let Cacheability = class Cacheability {
-  constructor() {
-    this._headerKeys = ["cache-control", "etag"];
-    this._metadata = {};
-  }
-
   static _getDirectives(cacheControl) {
@@ -45,6 +40,8 @@ return cacheControl.split(", ");
 
-  static _parseCacheControl(cacheControl = "") {
+  static _parseCacheControl(cacheControl) {
+    const obj = {};
+    if (!cacheControl.length) return obj;
+
     const directives = Cacheability._getDirectives(cacheControl);
 
-    const obj = {};
     directives.forEach(dir => {
@@ -66,8 +63,21 @@ if (dir.match(/=/)) {
 
-  static _setTTL(cacheControl) {
-    if (!(0, _isPlainObject2.default)(cacheControl)) return undefined;
-    const maxAge = cacheControl.maxAge,
-          sMaxage = cacheControl.sMaxage;
+  static _parseHeaders(headers) {
+    const metadata = {};
+
+    Cacheability._headerKeys.forEach(key => {
+      const headerValue = headers.get(key);
+      if (!headerValue) return;
+      const metadataKey = (0, _camelCase2.default)(key);
+      metadata[metadataKey] = headerValue;
+    });
+
+    return metadata;
+  }
+
+  static _setTTL({
+    maxAge,
+    sMaxage
+  }) {
     const sec = sMaxage || maxAge;
-    if (!sec) return undefined;
+    if (!(0, _isNumber2.default)(sec)) return Infinity;
     const ms = sec * 1000;
@@ -81,4 +91,12 @@ return Date.now() + ms;
 
+  set metadata(metadata) {
+    this._metadata = metadata;
+  }
+
   checkTTL() {
-    return !this._metadata.ttl ? true : this._metadata.ttl > Date.now();
+    if (!this._metadata || !this._metadata.ttl) {
+      throw new TypeError("checkTTL expected this._metadata.ttl to be a number.");
+    }
+
+    return this._metadata.ttl > Date.now();
   }
@@ -88,10 +106,11 @@
     if (!(0, _isString2.default)(cacheControl)) {
-      this._metadata = {};
-      return this._metadata;
+      throw new TypeError("parseCacheControl expected cacheControl to be a string.");
     }
 
+    const parsedCacheControl = Cacheability._parseCacheControl(cacheControl);
+
     this._metadata = {
-      cacheControl: Cacheability._parseCacheControl(cacheControl)
+      cacheControl: parsedCacheControl,
+      ttl: Cacheability._setTTL(parsedCacheControl)
     };
-    this._metadata.ttl = Cacheability._setTTL(this._metadata.cacheControl);
     return this._metadata;
@@ -101,17 +120,18 @@ }
   parseHeaders(headers) {
-    if (!(headers instanceof Headers) && !(0, _isPlainObject2.default)(headers)) {
-      this._metadata = {};
-      return this._metadata;
+    if (!(headers instanceof Headers)) {
+      throw new TypeError("parseHeaders expected headers to be an instance of Headers.");
     }
 
-    const metadata = headers instanceof Headers ? this._parseHeaders(headers) : headers;
+    const _Cacheability$_parseH = Cacheability._parseHeaders(headers),
+          _Cacheability$_parseH2 = _Cacheability$_parseH.cacheControl,
+          cacheControl = _Cacheability$_parseH2 === void 0 ? "" : _Cacheability$_parseH2,
+          etag = _Cacheability$_parseH.etag;
 
-    const cacheControl = Cacheability._parseCacheControl(metadata.cacheControl);
+    const parsedCacheControl = Cacheability._parseCacheControl(cacheControl);
 
-    const ttl = Cacheability._setTTL(cacheControl);
-
-    this._metadata = Object.assign({}, metadata, {
-      cacheControl,
-      ttl
-    });
+    this._metadata = {
+      cacheControl: parsedCacheControl,
+      etag,
+      ttl: Cacheability._setTTL(parsedCacheControl)
+    };
     return this._metadata;
@@ -121,12 +141,8 @@ }
   printCacheControl() {
-    if (!(0, _isPlainObject2.default)(this._metadata.cacheControl)) return undefined;
-    const cacheControl = Object.assign({}, this._metadata.cacheControl);
-    const ttl = this._metadata.ttl;
-    let maxAge = 0;
-
-    if (this.checkTTL()) {
-      const validTTL = ttl;
-      maxAge = Math.round((validTTL - Date.now()) / 1000);
+    if (!this._metadata || !this._metadata.cacheControl) {
+      throw new TypeError("printCacheControl expected this._metadata.cacheControl to be an object");
     }
 
+    const cacheControl = Object.assign({}, this._metadata.cacheControl);
+    const maxAge = this.checkTTL() && this._metadata.ttl !== Infinity ? Math.round((this._metadata.ttl - Date.now()) / 1000) : 0;
     if (cacheControl.sMaxage) cacheControl.sMaxage = maxAge;
@@ -146,22 +162,5 @@ if (cacheControl.maxAge) cacheControl.maxAge = maxAge;
 
-  setMetadata(metadata) {
-    let _metadata = metadata;
-    if (!(0, _isPlainObject2.default)(metadata)) _metadata = {};
-    this._metadata = _metadata;
-  }
-
-  _parseHeaders(headers) {
-    const metadata = {};
-
-    this._headerKeys.forEach(key => {
-      const headerValue = headers.get(key);
-      if (!headerValue) return;
-      metadata[(0, _camelCase2.default)(key)] = headerValue;
-    });
-
-    return metadata;
-  }
-
 };
 exports.default = Cacheability;
+Cacheability._headerKeys = ["cache-control", "etag"];
 //# sourceMappingURL=index.js.map

lib/main/types.d.ts

@@ -1,3 +0,4 @@
-export interface ObjectStringMap {
-  [key: string]: string;
+export interface ParsedHeaders {
+  cacheControl?: string;
+  etag?: string;
 }
@@ -8,9 +9,9 @@
   sMaxage?: number;
-  [key: string]: string | number | boolean | undefined;
+  [key: string]: string | number | boolean;
 }
 
 export interface Metadata {
-  cacheControl?: CacheControl;
+  cacheControl: CacheControl;
   etag?: string;
-  ttl?: number;
+  ttl: number;
 }

lib/module/index.d.ts

 import "isomorphic-fetch";
-import { Metadata, ObjectStringMap } from "./types";
+import { Metadata } from "./types";
 export default class Cacheability {
+    private static _headerKeys;
     private static _getDirectives(cacheControl);
-    private static _parseCacheControl(cacheControl?);
-    private static _setTTL(cacheControl?);
-    private _headerKeys;
+    private static _parseCacheControl(cacheControl);
+    private static _parseHeaders(headers);
+    private static _setTTL({maxAge, sMaxage});
     private _metadata;
-    readonly metadata: Metadata;
+    metadata: Metadata;
     checkTTL(): boolean;
     parseCacheControl(cacheControl: string): Metadata;
-    parseHeaders(headers: Headers | ObjectStringMap): Metadata;
-    printCacheControl(): string | undefined;
-    setMetadata(metadata?: Metadata): void;
-    private _parseHeaders(headers);
+    parseHeaders(headers: Headers): Metadata;
+    printCacheControl(): string;
 }

lib/module/index.js

@@ -5,3 +5,3 @@ import "core-js/modules/es6.symbol";
 import _isString from "lodash/isString";
-import _isPlainObject from "lodash/isPlainObject";
+import _isNumber from "lodash/isNumber";
 import _isBoolean from "lodash/isBoolean";
@@ -18,7 +18,2 @@ import _camelCase from "lodash/camelCase";
 let Cacheability = class Cacheability {
-  constructor() {
-    this._headerKeys = ["cache-control", "etag"];
-    this._metadata = {};
-  }
-
   static _getDirectives(cacheControl) {
@@ -28,6 +23,8 @@ return cacheControl.split(", ");
 
-  static _parseCacheControl(cacheControl = "") {
+  static _parseCacheControl(cacheControl) {
+    const obj = {};
+    if (!cacheControl.length) return obj;
+
     const directives = Cacheability._getDirectives(cacheControl);
 
-    const obj = {};
     directives.forEach(dir => {
@@ -49,8 +46,23 @@ if (dir.match(/=/)) {
 
-  static _setTTL(cacheControl) {
-    if (!_isPlainObject(cacheControl)) return undefined;
-    const maxAge = cacheControl.maxAge,
-          sMaxage = cacheControl.sMaxage;
+  static _parseHeaders(headers) {
+    const metadata = {};
+
+    Cacheability._headerKeys.forEach(key => {
+      const headerValue = headers.get(key);
+      if (!headerValue) return;
+
+      const metadataKey = _camelCase(key);
+
+      metadata[metadataKey] = headerValue;
+    });
+
+    return metadata;
+  }
+
+  static _setTTL({
+    maxAge,
+    sMaxage
+  }) {
     const sec = sMaxage || maxAge;
-    if (!sec) return undefined;
+    if (!_isNumber(sec)) return Infinity;
     const ms = sec * 1000;
@@ -64,4 +76,12 @@ return Date.now() + ms;
 
+  set metadata(metadata) {
+    this._metadata = metadata;
+  }
+
   checkTTL() {
-    return !this._metadata.ttl ? true : this._metadata.ttl > Date.now();
+    if (!this._metadata || !this._metadata.ttl) {
+      throw new TypeError("checkTTL expected this._metadata.ttl to be a number.");
+    }
+
+    return this._metadata.ttl > Date.now();
   }
@@ -71,10 +91,11 @@
     if (!_isString(cacheControl)) {
-      this._metadata = {};
-      return this._metadata;
+      throw new TypeError("parseCacheControl expected cacheControl to be a string.");
     }
 
+    const parsedCacheControl = Cacheability._parseCacheControl(cacheControl);
+
     this._metadata = {
-      cacheControl: Cacheability._parseCacheControl(cacheControl)
+      cacheControl: parsedCacheControl,
+      ttl: Cacheability._setTTL(parsedCacheControl)
     };
-    this._metadata.ttl = Cacheability._setTTL(this._metadata.cacheControl);
     return this._metadata;
@@ -84,17 +105,18 @@ }
   parseHeaders(headers) {
-    if (!(headers instanceof Headers) && !_isPlainObject(headers)) {
-      this._metadata = {};
-      return this._metadata;
+    if (!(headers instanceof Headers)) {
+      throw new TypeError("parseHeaders expected headers to be an instance of Headers.");
     }
 
-    const metadata = headers instanceof Headers ? this._parseHeaders(headers) : headers;
+    const _Cacheability$_parseH = Cacheability._parseHeaders(headers),
+          _Cacheability$_parseH2 = _Cacheability$_parseH.cacheControl,
+          cacheControl = _Cacheability$_parseH2 === void 0 ? "" : _Cacheability$_parseH2,
+          etag = _Cacheability$_parseH.etag;
 
-    const cacheControl = Cacheability._parseCacheControl(metadata.cacheControl);
+    const parsedCacheControl = Cacheability._parseCacheControl(cacheControl);
 
-    const ttl = Cacheability._setTTL(cacheControl);
-
-    this._metadata = Object.assign({}, metadata, {
-      cacheControl,
-      ttl
-    });
+    this._metadata = {
+      cacheControl: parsedCacheControl,
+      etag,
+      ttl: Cacheability._setTTL(parsedCacheControl)
+    };
     return this._metadata;
@@ -104,12 +126,8 @@ }
   printCacheControl() {
-    if (!_isPlainObject(this._metadata.cacheControl)) return undefined;
-    const cacheControl = Object.assign({}, this._metadata.cacheControl);
-    const ttl = this._metadata.ttl;
-    let maxAge = 0;
-
-    if (this.checkTTL()) {
-      const validTTL = ttl;
-      maxAge = Math.round((validTTL - Date.now()) / 1000);
+    if (!this._metadata || !this._metadata.cacheControl) {
+      throw new TypeError("printCacheControl expected this._metadata.cacheControl to be an object");
     }
 
+    const cacheControl = Object.assign({}, this._metadata.cacheControl);
+    const maxAge = this.checkTTL() && this._metadata.ttl !== Infinity ? Math.round((this._metadata.ttl - Date.now()) / 1000) : 0;
     if (cacheControl.sMaxage) cacheControl.sMaxage = maxAge;
@@ -129,22 +147,5 @@ if (cacheControl.maxAge) cacheControl.maxAge = maxAge;
 
-  setMetadata(metadata) {
-    let _metadata = metadata;
-    if (!_isPlainObject(metadata)) _metadata = {};
-    this._metadata = _metadata;
-  }
-
-  _parseHeaders(headers) {
-    const metadata = {};
-
-    this._headerKeys.forEach(key => {
-      const headerValue = headers.get(key);
-      if (!headerValue) return;
-      metadata[_camelCase(key)] = headerValue;
-    });
-
-    return metadata;
-  }
-
 };
 export { Cacheability as default };
+Cacheability._headerKeys = ["cache-control", "etag"];
 //# sourceMappingURL=index.js.map

lib/module/types.d.ts

@@ -1,3 +0,4 @@
-export interface ObjectStringMap {
-  [key: string]: string;
+export interface ParsedHeaders {
+  cacheControl?: string;
+  etag?: string;
 }
@@ -8,9 +9,9 @@
   sMaxage?: number;
-  [key: string]: string | number | boolean | undefined;
+  [key: string]: string | number | boolean;
 }
 
 export interface Metadata {
-  cacheControl?: CacheControl;
+  cacheControl: CacheControl;
   etag?: string;
-  ttl?: number;
+  ttl: number;
 }

package.json

 {
   "name": "cacheability",
-  "version": "0.0.6",
+  "version": "0.0.7",
   "description": "A utility class to parse, store and print http cache headers.",
@@ -5,0 +5,0 @@ "author": "Dylan Aubrey <[e-mail]>",

No alert changes

Worsened metrics

Total package byte prevSize

538408

decreased by-1.27%

Lines of code

3451

decreased by-1.48%

No dependency changes