update

lib/providers/auth_provider.dart

@@ -0,0 +1,21 @@
+import 'package:chat/models/auth/auth_model.dart';
+import 'package:chat/utils/request/http.dart';
+import 'package:chat/utils/ui_tools.dart';
+
+class AuthProvider {
+  static Future<AuthModel?> login(String address) async {
+    try {
+      final result = await Http.post(
+        'auth/login',
+        data: {
+          'address': address,
+        },
+      );
+
+      return AuthModel.fromJson(result);
+    } catch (e) {
+      UiTools.toast('区块链地址获取失败');
+      return null;
+    }
+  }
+}