424 Failed Dependency

PROPPATCH /workspace/file.txt HTTP/1.1
Host: api.example.com
Content-Type: application/xml

<?xml version="1.0" encoding="utf-8" ?>
<D:propertyupdate xmlns:D="DAV:">
  <D:set>
    <D:prop>
      <D:displayname>New Name</D:displayname>
    </D:prop>
  </D:set>
</D:propertyupdate>

app.post('/api/batch', async (req, res) => {
  const { createFolder, uploadFile } = req.body;
  const folderResult = await processFolder(createFolder);
  if (!folderResult.success) {
    return res.status(400).json({ error: "Folder creation failed" });
  }
  const fileResult = await processUpload(uploadFile);
  if (!fileResult.success) {
    // If the file upload fails, we might roll back and say the whole dependency failed
    return res.status(424).json({ error: "File upload failed dependency on folder" });
  }
  res.status(200).send("Batch complete");
});

@app.post("/api/transactions")
def run_transaction(steps: List[Step]):
    for i, step in enumerate(steps):
        if not execute_step(step):
            # Return 424 for subsequent steps that depended on this
            raise HTTPException(status_code=424, detail=f"Step {i} failed, aborting transaction")
    return {"status": "success"}

func batchHandler(w http.ResponseWriter, r *http.Request) {
    err := performStep1()
    if err != nil {
        http.Error(w, "Step 1 failed", http.StatusBadRequest)
        return
    }
    err = performStep2()
    if err != nil {
        http.Error(w, "Step 2 failed dependency", 424)
        return
    }
    w.WriteHeader(http.StatusOK)
}

[HttpPost("batch")]
public IActionResult ProcessBatch([FromBody] BatchRequest request) {
    var res1 = Service.DoFirst(request.Task1);
    if (!res1.IsSuccess) return BadRequest(res1.Error);
    
    var res2 = Service.DoSecond(request.Task2);
    if (!res2.IsSuccess) return StatusCode(424, "Task 2 failed due to prior failures.");
    
    return Ok();
}

curl -X POST https://api.example.com/batch \
  -H "Content-Type: application/json" \
  -d '{"tasks": ["task1", "task2"]}' \
  -i