add basic helper function

src/index.ts

@@ -52,6 +52,7 @@ export type RouterRequest<ReqExt> = ReqExt & {
 	formData(): Promise<FormData>
 	blob(): Promise<Blob>
 	bearer(): string | undefined
+	basic(): [string, string]
 	cf?: IncomingRequestCfProperties
 }
 
@@ -395,7 +396,8 @@ export class Router<Env = any, CtxExt = {}, ReqExt = {}> {
 			json: async <T>(): Promise<T> => buffer.json ? buffer.json : buffer.json = await request.clone().json<T>(),
 			formData: async (): Promise<FormData> => buffer.formData ? buffer.formData : buffer.formData = await request.clone().formData(),
 			blob: async (): Promise<Blob> => buffer.blob ? buffer.blob : buffer.blob = await request.clone().blob(),
-			bearer: () => request.headers.get('Authorization')?.replace(/^(B|b)earer /, '').trim()
+			bearer: () => request.headers.get('Authorization')?.replace(/^[Bb]earer\s/, '').trim(),
+			basic: () => (atob(request.headers.get('Authorization')?.replace(/^[Bb]asic\s/, '').trim() ?? '') || undefined)?.split(':')
 		} as RouterRequest<ReqExt>
 
 		if (this.corsEnabled && req.method === 'OPTIONS') {

tests/index.spec.ts

@@ -261,6 +261,21 @@ describe('Router', () => {
 
 		expect(await response.text()).toBe(testToken)
 	})
+
+	test('basic', async () => {
+		const router = new Router()
+		const testCredentials = ['user', 'password']
+		const testBasicAuth = btoa(testCredentials.join(':'))
+		const testRequest = new Request('https://example.com/', { headers: { 'Authorization': `Basic ${testBasicAuth}` }})
+
+		router.get('/', ({ req }) => Response.json(req.basic()))
+
+		const response = await router.handle(testRequest, {})
+
+		expect(response.status).toEqual(200)
+
+		expect(await response.json()).toMatchObject(testCredentials)
+	})
 })
 
 describe('Middleware', () => {