curl -X POST https://api.trellis.sh/v1/chats/uploads \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -F "files=@report.pdf;type=application/pdf" \
  -F "files=@data.csv;type=text/csv" \
  -F "chat_id=8f14e45f-ceea-467f-a83c-0a06b8901a45"

import requests

with open("report.pdf", "rb") as pdf, open("data.csv", "rb") as csv:
    response = requests.post(
        "https://api.trellis.sh/v1/chats/uploads",
        headers={"Authorization": "Bearer YOUR_TOKEN"},
        files=[
            ("files", ("report.pdf", pdf, "application/pdf")),
            ("files", ("data.csv", csv, "text/csv")),
        ],
        data={"chat_id": "8f14e45f-ceea-467f-a83c-0a06b8901a45"},
    )
result = response.json()
upload_ids = [u["id"] for u in result["uploads"]]

const form = new FormData();
const pdfFile = new File([pdfBlob], "report.pdf", { type: "application/pdf" });
const csvFile = new File([csvBlob], "data.csv", { type: "text/csv" });
form.append("files", pdfFile);
form.append("files", csvFile);
form.append("chat_id", "8f14e45f-ceea-467f-a83c-0a06b8901a45");

const response = await fetch("https://api.trellis.sh/v1/chats/uploads", {
  method: "POST",
  headers: { Authorization: "Bearer YOUR_TOKEN" },
  body: form,
});
const { chat_id, uploads } = await response.json();
const uploadIds = uploads.map((u) => u.id);

{
  "chat_id": "8f14e45f-ceea-467f-a83c-0a06b8901a45",
  "uploads": [
    {
      "id": "550e8400-e29b-41d4-a716-446655440000",
      "filename": "report.pdf",
      "mime_type": "application/pdf",
      "file_size": 245760,
      "upload_type": "document",
      "presigned_url": "https://s3.amazonaws.com/...",
      "created_at": "2025-06-15T09:30:00Z",
      "message_id": null
    },
    {
      "id": "6ba7b810-9dad-11d1-80b4-00c04fd430c8",
      "filename": "data.csv",
      "mime_type": "text/csv",
      "file_size": 1024,
      "upload_type": "document",
      "presigned_url": "https://s3.amazonaws.com/...",
      "created_at": "2025-06-15T09:30:01Z",
      "message_id": null
    }
  ]
}

{
  "detail": "Unsupported file type 'application/octet-stream' for 'archive.bin'. Allowed: PNG, JPG, PDF, CSV, XLSX"
}

{
  "detail": "Maximum 5 files per request"
}

{
  "detail": "File 'large.pdf' exceeds 30MB limit (45.2MB)"
}

{
  "detail": {
    "code": "MISSING_CHAT_ID",
    "message": "Provide chat_id; create one via POST /v1/chats/create"
  }
}

{
  "detail": "Chat not found"
}

{
  "code": "RATE_LIMIT",
  "retry_after_seconds": 8
}

{
  "detail": "Failed to process file 'report.pdf'"
}