Add Type Checking to ParseToken Map

common/api-review/auth.api.md

@@ -550,7 +550,7 @@ export function parseActionCodeURL(link: string): ActionCodeURL | null;
 
 // @public
 export interface ParsedToken {
-    [key: string]: any;
+    [key: string]: unknown;
     'auth_time'?: string;
     'exp'?: string;
     'firebase'?: {

package.json

@@ -152,5 +152,6 @@
     "watch": "1.0.2",
     "webpack": "4.46.0",
     "yargs": "17.7.1"
-  }
+  },
+  "dependencies": {}
 }

packages/auth/package.json

@@ -114,6 +114,7 @@
     "@firebase/component": "0.6.4",
     "@firebase/logger": "0.4.0",
     "@firebase/util": "1.9.3",
+    "karma-cli": "2.0.0",
     "node-fetch": "2.6.7",
     "tslib": "^2.1.0"
   },
@@ -122,14 +123,14 @@
     "@firebase/app": "0.9.11",
     "@rollup/plugin-json": "4.1.0",
     "@rollup/plugin-strip": "2.1.0",
+    "@types/express": "4.17.17",
     "chromedriver": "98.0.1",
     "rollup": "2.79.1",
     "rollup-plugin-sourcemaps": "0.6.3",
     "rollup-plugin-typescript2": "0.31.2",
     "selenium-webdriver": "4.8.0",
-    "typescript": "4.7.4",
-    "@types/express": "4.17.17",
-    "totp-generator": "0.0.14"
+    "totp-generator": "0.0.14",
+    "typescript": "4.7.4"
   },
   "repository": {
     "directory": "packages/auth",

packages/auth/src/core/user/id_token_result.test.ts

@@ -20,6 +20,7 @@ import chaiAsPromised from 'chai-as-promised';
 import * as sinon from 'sinon';
 
 import { ProviderId } from '../../model/enums';
+import { ParsedToken } from '../../model/public_types';
 import { FirebaseError } from '@firebase/util';
 
 import { makeJWT } from '../../../test/helpers/jwt';
@@ -139,4 +140,15 @@ describe('core/user/id_token_result', () => {
       'Firebase: An internal AuthError has occurred. (auth/internal-error).'
     );
   });
+
+  it('Parses custom claims with multiple types', () => {
+    const token: ParsedToken = {
+      'string_claim': 'foo',
+      'object_claim': 'bar',
+      'boolean_claim': true
+    };
+    expect(token.boolean_claim as boolean).to.equal(true);
+    expect(token.string_claim as string).to.equal('foo');
+    expect(token.object_claim as object).to.equal('bar');
+  });
 });

packages/auth/src/model/public_types.ts

@@ -106,7 +106,7 @@ export interface ParsedToken {
     'identities'?: Record<string, string>;
   };
   /** Map of any additional custom claims. */
-  [key: string]: any;
+  [key: string]: unknown;
 }
 
 /**