Fixed API folder name

Birdmap.API/ClientApp/src/components/auth/AuthService.ts

@@ -0,0 +1,29 @@
+import ServiceBase from '../../common/ServiceBase';
+
+const login_url = 'api/auth/authenticate';
+
+export default {
+    isAuthenticated() {
+        return sessionStorage.getItem('user') !== null;
+    },
+
+    login(username: string, password: string) {
+        let body = {
+            username: username,
+            password: password
+        };
+        let options = {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify(body),
+        };
+
+        return ServiceBase.makeRequest(login_url, options)
+            .then(response => {
+                sessionStorage.setItem('user', `${response.token_type} ${response.access_token}`);
+                return Promise.resolve();
+            });
+    }
+}