From 46fec025db30b98996b6c942b3e8287fe20427ef Mon Sep 17 00:00:00 2001
From: askalf <263217947+askalf@users.noreply.github.com>
Date: Thu, 24 Sep 2026 12:32:18 +0000
Subject: [PATCH] fix: use --data-binary in cURL sample for
 application/octet-stream body

---
 .../__tests__/convertRequestToSample.spec.ts  | 23 +++++++++++++++++++
 .../RequestSamples/convertRequestToSample.ts  |  4 +++-
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/packages/elements-core/src/components/RequestSamples/__tests__/convertRequestToSample.spec.ts b/packages/elements-core/src/components/RequestSamples/__tests__/convertRequestToSample.spec.ts
index f79e36f63..6b5c9bb24 100644
--- a/packages/elements-core/src/components/RequestSamples/__tests__/convertRequestToSample.spec.ts
+++ b/packages/elements-core/src/components/RequestSamples/__tests__/convertRequestToSample.spec.ts
@@ -116,3 +116,26 @@ describe('curly bracket encoding', () => {
     expect(result).toContain('%7B%22categories%22'); // Query parameter curly brackets should be encoded
   });
 });
+
+describe('application/octet-stream body', () => {
+  const harWithFile = {
+    method: 'POST',
+    url: 'https://todos.stoplight.io/todos',
+    httpVersion: 'HTTP/1.1',
+    cookies: [],
+    headers: [{ name: 'Content-Type', value: 'application/octet-stream' }],
+    queryString: [],
+    postData: {
+      mimeType: 'application/octet-stream',
+      text: '@some-file.bin',
+    },
+    headersSize: -1,
+    bodySize: -1,
+  };
+
+  it('should send the file unmodified with --data-binary in curl', async () => {
+    const result = await convertRequestToSample('shell', 'curl', harWithFile);
+
+    expect(result).toContain('--data-binary @some-file.bin');
+  });
+});
diff --git a/packages/elements-core/src/components/RequestSamples/convertRequestToSample.ts b/packages/elements-core/src/components/RequestSamples/convertRequestToSample.ts
index aaa1d9c4c..316ce6037 100644
--- a/packages/elements-core/src/components/RequestSamples/convertRequestToSample.ts
+++ b/packages/elements-core/src/components/RequestSamples/convertRequestToSample.ts
@@ -12,7 +12,9 @@ export const convertRequestToSample = async (
 
   try {
     const snippet = new HTTPSnippet(request);
-    let converted = await snippet.convert(language, library);
+    // Makes cURL use --data-binary, as --data strips newlines and null bytes from the uploaded file
+    const options = request.postData?.mimeType === 'application/octet-stream' ? { binary: true } : undefined;
+    let converted = await snippet.convert(language, library, options);
 
     if (Array.isArray(converted)) {
       converted = converted[0];