feat(pwa): basic pwa setup

Author: lokesh-coder

angular.json

@@ -18,9 +18,17 @@
             "main": "src/main.ts",
             "polyfills": "src/polyfills.ts",
             "tsConfig": "src/tsconfig.app.json",
-            "assets": ["src/favicon.ico", "src/assets"],
-            "styles": ["src/styles.scss"],
-            "scripts": ["./node_modules/nedb/browser-version/out/nedb.min.js"]
+            "assets": [
+              "src/favicon.ico",
+              "src/assets",
+              "src/manifest.json"
+            ],
+            "styles": [
+              "src/styles.scss"
+            ],
+            "scripts": [
+              "./node_modules/nedb/browser-version/out/nedb.min.js"
+            ]
           },
           "configurations": {
             "production": {
@@ -44,7 +52,8 @@
                   "type": "all",
                   "maximumWarning": "300000"
                 }
-              ]
+              ],
+              "serviceWorker": true
             }
           }
         },
@@ -72,16 +81,27 @@
             "polyfills": "src/polyfills.ts",
             "tsConfig": "src/tsconfig.spec.json",
             "karmaConfig": "src/karma.conf.js",
-            "styles": ["styles.scss"],
+            "styles": [
+              "styles.scss"
+            ],
             "scripts": [],
-            "assets": ["src/favicon.ico", "src/assets"]
+            "assets": [
+              "src/favicon.ico",
+              "src/assets",
+              "src/manifest.json"
+            ]
           }
         },
         "lint": {
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
-            "tsConfig": ["src/tsconfig.app.json", "src/tsconfig.spec.json"],
-            "exclude": ["**/node_modules/**"]
+            "tsConfig": [
+              "src/tsconfig.app.json",
+              "src/tsconfig.spec.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
@@ -101,7 +121,9 @@
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
             "tsConfig": "e2e/tsconfig.e2e.json",
-            "exclude": ["**/node_modules/**"]
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
@@ -120,4 +142,4 @@
       "prefix": "inkapp"
     }
   }
-}
+}

ngsw-config.json

@@ -0,0 +1,24 @@
+{
+  "index": "/index.html",
+  "assetGroups": [{
+    "name": "app",
+    "installMode": "prefetch",
+    "resources": {
+      "files": [
+        "/favicon.ico",
+        "/index.html",
+        "/*.css",
+        "/*.js"
+      ]
+    }
+  }, {
+    "name": "assets",
+    "installMode": "lazy",
+    "updateMode": "prefetch",
+    "resources": {
+      "files": [
+        "/assets/**"
+      ]
+    }
+  }]
+}