fix(auth): iam check

tests/iam_refresh_decode.rs

@@ -0,0 +1,40 @@
+use serde::Deserialize;
+
+#[derive(Debug, Deserialize)]
+struct AppResponse<T> {
+    code: i32,
+    message: String,
+    data: Option<T>,
+}
+
+#[derive(Debug, Deserialize)]
+struct RefreshResponseData {
+    access_token: String,
+    refresh_token: String,
+    token_type: Option<String>,
+    expires_in: usize,
+}
+
+#[test]
+fn can_decode_iam_refresh_response_snake_case() {
+    let json = r#"
+    {
+      "code": 0,
+      "message": "ok",
+      "data": {
+        "access_token": "a",
+        "refresh_token": "r",
+        "token_type": "Bearer",
+        "expires_in": 7200
+      }
+    }
+    "#;
+
+    let parsed: AppResponse<RefreshResponseData> = serde_json::from_str(json).unwrap();
+    let data = parsed.data.unwrap();
+    assert_eq!(data.access_token, "a");
+    assert_eq!(data.refresh_token, "r");
+    assert_eq!(data.token_type.as_deref(), Some("Bearer"));
+    assert_eq!(data.expires_in, 7200);
+}
+