chore(core): fix JsonObject type doesn't allow array of JsonObject as…

… field (#13669)

* chore(core): fix JsonObject type doesn't allow array of JsonObject as field

* chore: fix an array of types

* chore: allow array of JsonArray

* chore: refine the test

packages/core/__tests__/singleton/Auth/type.test.ts

@@ -0,0 +1,58 @@
+import { JWT } from '../../../src/singleton/Auth/types';
+
+describe('type validity', () => {
+	describe('JWT type', () => {
+		it('can contain property that has a value as array of JsonObjects', () => {
+			type OtherProperty1 = (
+				| { key: string }
+				| number
+				| string
+				| (
+						| { key: string }
+						| number
+						| string
+						| ({ key: string } | number | string)[]
+				  )[]
+			)[];
+			// For testing purpose, use type alias here, as TS will complain while using
+			// an interface which triggers structural typing check
+			// eslint-disable-next-line @typescript-eslint/consistent-type-definitions
+			type OtherProperty2 = {
+				key: number;
+				array: (
+					| { key: string }
+					| number
+					| string
+					| ({ key: string } | number | string)[]
+				)[];
+			};
+			const expectedOtherProperty1 = [
+				{ key: '123' },
+				1,
+				'hi',
+				[1, 'hi', { key: '345' }, [2, 'hi', { key: '456' }]],
+			];
+			const expectedOtherProperty2 = {
+				key: 1,
+				array: [1, 'hi', { key: '123' }, [2, 'hi', { key: '456' }]],
+			};
+			const value: JWT = {
+				payload: {
+					otherProperty1: expectedOtherProperty1,
+					otherProperty2: expectedOtherProperty2,
+				},
+				toString: () => 'mock',
+			};
+
+			const extractedOtherProperty1 = value.payload
+				.otherProperty1 as OtherProperty1;
+			const a: OtherProperty1 = extractedOtherProperty1;
+			expect(a).toEqual(expectedOtherProperty1);
+
+			const extractedOtherProperty2 = value.payload
+				.otherProperty2 as OtherProperty2;
+			const b: OtherProperty2 = extractedOtherProperty2;
+			expect(b).toEqual(expectedOtherProperty2);
+		});
+	});
+});

packages/core/src/singleton/Auth/types.ts

@@ -20,7 +20,7 @@ interface JwtPayloadStandardFields {
 type JsonPrimitive = null | string | number | boolean;
 
 /** JSON array type */
-type JsonArray = JsonPrimitive[];
+type JsonArray = (JsonPrimitive | JsonObject | JsonArray)[];
 
 /** JSON Object type */
 interface JsonObject {