diff --git a/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/mod.rs b/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/mod.rs
index ebc3d92b9e..1508a767ab 100644
--- a/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/mod.rs
+++ b/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/mod.rs
@@ -1 +1,2 @@
 pub mod prepare_image_upload;
+mod request_types;
diff --git a/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/prepare_image_upload.rs b/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/prepare_image_upload.rs
index 4ea76df5e2..08ee8dd375 100644
--- a/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/prepare_image_upload.rs
+++ b/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/prepare_image_upload.rs
@@ -1,10 +1,11 @@
+use crate::creds::seedance2pro_session::Seedance2ProSession;
 use crate::error::seedance2pro_client_error::Seedance2ProClientError;
 use crate::error::seedance2pro_error::Seedance2ProError;
 use crate::error::seedance2pro_generic_api_error::Seedance2ProGenericApiError;
+use crate::requests::prepare_image_upload::request_types::*;
 use chrono::Utc;
 use log::info;
 use rand::Rng;
-use serde_derive::{Deserialize, Serialize};
 use wreq::Client;
 use wreq_util::Emulation;
 
@@ -22,39 +23,8 @@ fn generate_material_path() -> String {
   format!("materials/{}/{}-{}.png", date_part, timestamp_millis, hex_part)
 }
 
-#[derive(Serialize)]
-struct BatchRequest {
-  #[serde(rename = "0")]
-  zero: BatchRequestInner,
-}
-
-#[derive(Serialize)]
-struct BatchRequestInner {
-  json: BatchRequestJson,
-}
-
-#[derive(Serialize)]
-struct BatchRequestJson {
-  path: String,
-}
-
-#[derive(Deserialize, Debug)]
-struct BatchResponseItem {
-  result: BatchResponseResult,
-}
-
-#[derive(Deserialize, Debug)]
-struct BatchResponseResult {
-  data: BatchResponseData,
-}
-
-#[derive(Deserialize, Debug)]
-struct BatchResponseData {
-  json: String,
-}
-
 pub struct PrepareImageUploadArgs<'a> {
-  pub cookie: &'a str,
+  pub session: &'a Seedance2ProSession,
 }
 
 pub struct PrepareImageUploadResponse {
@@ -83,6 +53,8 @@ pub async fn prepare_image_upload(args: PrepareImageUploadArgs<'_>) -> Result<Pr
     },
   };
 
+  let cookie = args.session.cookies.as_str();
+
   let response = client.post(SIGNED_UPLOAD_URL)
     .header("User-Agent", FIREFOX_USER_AGENT)
     .header("Accept", "*/*")
@@ -93,7 +65,7 @@ pub async fn prepare_image_upload(args: PrepareImageUploadArgs<'_>) -> Result<Pr
     .header("x-trpc-source", "client")
     .header("Origin", "https://seedance2-pro.com")
     .header("Connection", "keep-alive")
-    .header("Cookie", args.cookie)
+    .header("Cookie", cookie)
     .header("Sec-Fetch-Dest", "empty")
     .header("Sec-Fetch-Mode", "cors")
     .header("Sec-Fetch-Site", "same-origin")
@@ -140,6 +112,7 @@ pub async fn prepare_image_upload(args: PrepareImageUploadArgs<'_>) -> Result<Pr
 #[cfg(test)]
 mod tests {
   use super::*;
+  use crate::creds::seedance2pro_session::Seedance2ProSession;
   use crate::test_utils::get_test_cookies::get_test_cookies;
   use crate::test_utils::setup_test_logging::setup_test_logging;
   use errors::AnyhowResult;
@@ -149,9 +122,10 @@ mod tests {
   #[ignore] // manually test — requires real cookies
   async fn test_prepare_image_upload() -> AnyhowResult<()> {
     setup_test_logging(LevelFilter::Trace);
-    let cookie = get_test_cookies()?;
+    let cookies = get_test_cookies()?;
+    let session = Seedance2ProSession::from_cookies_string(cookies);
     let args = PrepareImageUploadArgs {
-      cookie: &cookie,
+      session: &session,
     };
     let result = prepare_image_upload(args).await?;
     println!("Upload URL: {}", result.upload_url);
@@ -159,6 +133,8 @@ mod tests {
     assert!(!result.upload_url.is_empty());
     assert!(result.upload_url.contains("cloudflarestorage.com"));
     assert!(result.material_path.starts_with("materials/"));
+
+    assert_eq!(1, 2); // NB: Intentional failure to check the response.
     Ok(())
   }
 }
diff --git a/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/request_types.rs b/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/request_types.rs
new file mode 100644
index 0000000000..6736d58829
--- /dev/null
+++ b/crates/api_clients/seedance2pro/src/requests/prepare_image_upload/request_types.rs
@@ -0,0 +1,32 @@
+use serde_derive::{Deserialize, Serialize};
+
+#[derive(Serialize)]
+pub(super) struct BatchRequest {
+  #[serde(rename = "0")]
+  pub zero: BatchRequestInner,
+}
+
+#[derive(Serialize)]
+pub(super) struct BatchRequestInner {
+  pub json: BatchRequestJson,
+}
+
+#[derive(Serialize)]
+pub(super) struct BatchRequestJson {
+  pub path: String,
+}
+
+#[derive(Deserialize, Debug)]
+pub(super) struct BatchResponseItem {
+  pub result: BatchResponseResult,
+}
+
+#[derive(Deserialize, Debug)]
+pub(super) struct BatchResponseResult {
+  pub data: BatchResponseData,
+}
+
+#[derive(Deserialize, Debug)]
+pub(super) struct BatchResponseData {
+  pub json: String,
+}
diff --git a/crates/api_clients/seedance2pro/src/requests/upload_image/upload_image.rs b/crates/api_clients/seedance2pro/src/requests/upload_image/upload_image.rs
index 05718d1e1f..33d7456068 100644
--- a/crates/api_clients/seedance2pro/src/requests/upload_image/upload_image.rs
+++ b/crates/api_clients/seedance2pro/src/requests/upload_image/upload_image.rs
@@ -83,6 +83,7 @@ pub async fn upload_image(args: UploadImageArgs) -> Result<UploadImageResponse,
 #[cfg(test)]
 mod tests {
   use super::*;
+  use crate::creds::seedance2pro_session::Seedance2ProSession;
   use crate::test_utils::get_test_cookies::get_test_cookies;
   use crate::test_utils::setup_test_logging::setup_test_logging;
   use crate::requests::prepare_image_upload::prepare_image_upload::{
@@ -98,9 +99,10 @@ mod tests {
     setup_test_logging(LevelFilter::Trace);
 
     // Step 1: Get a signed upload URL
-    let cookie = get_test_cookies()?;
+    let cookies = get_test_cookies()?;
+    let session = Seedance2ProSession::from_cookies_string(cookies);
     let prepare_args = PrepareImageUploadArgs {
-      cookie: &cookie,
+      session: &session,
     };
     let prepare_result = prepare_image_upload(prepare_args).await?;
     println!("Upload URL: {}", prepare_result.upload_url);