[FEEDS-1060] fix file upload

src/main/java/io/getstream/services/framework/StreamRequest.java

@@ -4,8 +4,11 @@
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import io.getstream.exceptions.StreamException;
+import io.getstream.models.UploadFileRequest;
+import io.getstream.models.UploadImageRequest;
 import io.getstream.models.framework.RateLimit;
 import io.getstream.models.framework.StreamResponse;
+import java.io.File;
 import java.io.IOException;
 import java.util.Date;
 import java.util.List;
@@ -38,6 +41,10 @@ public StreamRequest(
       RequestBody rawBody;
       if (List.of("GET", "DELETE", "HEAD", "OPTIONS").contains(method) || jRequest == null) {
         rawBody = null;
+      } else if (jRequest instanceof UploadFileRequest) {
+        rawBody = createMultipartBody((UploadFileRequest) jRequest);
+      } else if (jRequest instanceof UploadImageRequest) {
+        rawBody = createMultipartBody((UploadImageRequest) jRequest);
       } else {
         rawBody = RequestBody.create(objectMapper.writeValueAsBytes(jRequest));
       }
@@ -103,6 +110,62 @@ public HttpUrl buildUrl(
     return urlBuilder.build();
   }
 
+  private RequestBody createMultipartBody(UploadFileRequest request) throws IOException {
+    if (request.getFile() == null || request.getFile().isEmpty()) {
+      throw new IllegalArgumentException("File path must be provided");
+    }
+
+    File file = new File(request.getFile());
+    if (!file.exists()) {
+      throw new IOException("File not found: " + request.getFile());
+    }
+
+    MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);
+
+    // Add file
+    RequestBody fileBody = RequestBody.create(file, MediaType.parse("application/octet-stream"));
+    builder.addFormDataPart("file", file.getName(), fileBody);
+
+    // Add user field if present
+    if (request.getUser() != null) {
+      String userJson = objectMapper.writeValueAsString(request.getUser());
+      builder.addFormDataPart("user", userJson);
+    }
+
+    return builder.build();
+  }
+
+  private RequestBody createMultipartBody(UploadImageRequest request) throws IOException {
+    if (request.getFile() == null || request.getFile().isEmpty()) {
+      throw new IllegalArgumentException("File path must be provided");
+    }
+
+    File file = new File(request.getFile());
+    if (!file.exists()) {
+      throw new IOException("File not found: " + request.getFile());
+    }
+
+    MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);
+
+    // Add file
+    RequestBody fileBody = RequestBody.create(file, MediaType.parse("image/*"));
+    builder.addFormDataPart("file", file.getName(), fileBody);
+
+    // Add upload_sizes field if present
+    if (request.getUploadSizes() != null && !request.getUploadSizes().isEmpty()) {
+      String uploadSizesJson = objectMapper.writeValueAsString(request.getUploadSizes());
+      builder.addFormDataPart("upload_sizes", uploadSizesJson);
+    }
+
+    // Add user field if present
+    if (request.getUser() != null) {
+      String userJson = objectMapper.writeValueAsString(request.getUser());
+      builder.addFormDataPart("user", userJson);
+    }
+
+    return builder.build();
+  }
+
   public StreamResponse<T> execute() throws StreamException {
     okhttp3.Call call = client.newCall(request);
     Response response;

src/test/java/io/getstream/FeedIntegrationTests.java

@@ -1539,6 +1539,75 @@ void test32_RealWorldUsageDemo() throws Exception {
     System.out.println("✅ Completed real-world usage scenario demonstration");
   }
 
+  /** Test file upload functionality */
+  @Test
+  @Order(37)
+  void test37_UploadImage() throws Exception {
+    System.out.println("\n🖼️ Testing image upload...");
+
+    // snippet-start: UploadImage
+    UploadImageRequest imageUploadRequest =
+        UploadImageRequest.builder()
+            .file("img.png")
+            .user(OnlyUserID.builder().id(testUserId).build())
+            .uploadSizes(
+                List.of(
+                    ImageSize.builder()
+                        .width(100)
+                        .height(100)
+                        .resize("scale")
+                        .crop("center")
+                        .build()))
+            .build();
+
+    ImageUploadResponse imageResponse = common.uploadImage(imageUploadRequest).execute().getData();
+    // snippet-end: UploadImage
+
+    Assertions.assertNotNull(imageResponse, "Image upload response should not be null");
+    Assertions.assertNotNull(imageResponse.getFile(), "Uploaded image URL should not be null");
+    Assertions.assertTrue(
+        imageResponse.getFile().contains("http"), "Image URL should be a valid HTTP URL");
+
+    System.out.println("✅ Image uploaded successfully: " + imageResponse.getFile());
+  }
+
+  /** Test file upload functionality */
+  @Test
+  @Order(38)
+  void test38_UploadFile() throws Exception {
+    System.out.println("\n📄 Testing file upload...");
+
+    // Create a temporary test file
+    java.io.File tempFile = java.io.File.createTempFile("test-file-", ".txt");
+    java.nio.file.Files.writeString(
+        tempFile.toPath(),
+        "This is a test file for integration testing\nContains multiple lines\nWith various content");
+
+    try {
+      // snippet-start: UploadFile
+      UploadFileRequest fileUploadRequest =
+          UploadFileRequest.builder()
+              .file(tempFile.getAbsolutePath())
+              .user(OnlyUserID.builder().id(testUserId).build())
+              .build();
+
+      FileUploadResponse fileResponse = common.uploadFile(fileUploadRequest).execute().getData();
+      // snippet-end: UploadFile
+
+      Assertions.assertNotNull(fileResponse, "File upload response should not be null");
+      Assertions.assertNotNull(fileResponse.getFile(), "Uploaded file URL should not be null");
+      Assertions.assertTrue(
+          fileResponse.getFile().contains("http"), "File URL should be a valid HTTP URL");
+
+      System.out.println("✅ File uploaded successfully: " + fileResponse.getFile());
+    } finally {
+      // Clean up temp file
+      if (tempFile.exists()) {
+        tempFile.delete();
+      }
+    }
+  }
+
   // =================================================================
   // HELPER METHODS
   // =================================================================