Upload a file

curl --request POST \
  --url https://app.productlasso.com/api/v1/files \
  --header "Authorization: Bearer $LASSO_API_KEY" \
  --form "file=@supplier-products.xlsx"

import { readFile } from "node:fs/promises";

const file = await readFile("supplier-products.xlsx");
const form = new FormData();
form.append(
  "file",
  new Blob([file], { type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" }),
  "supplier-products.xlsx",
);

const response = await fetch("https://app.productlasso.com/api/v1/files", {
  method: "POST",
  headers: { Authorization: `Bearer ${process.env.LASSO_API_KEY}` },
  body: form,
});

if (!response.ok) throw new Error(await response.text());
const uploadedFile = await response.json();

import os
import requests

with open("supplier-products.xlsx", "rb") as file:
    response = requests.post(
        "https://app.productlasso.com/api/v1/files",
        headers={"Authorization": f"Bearer {os.environ['LASSO_API_KEY']}"},
        files={"file": ("supplier-products.xlsx", file)},
        timeout=120,
    )

response.raise_for_status()
uploaded_file = response.json()

{
  "id": "4be9e43c-f03a-4309-938c-d2e9482752cf",
  "filename": "supplier-products.xlsx",
  "size": 42816,
  "content_type": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
  "created_at": "2026-08-31T09:10:00.000Z"
}

{
  "status_code": 123,
  "error_type": "invalid_request",
  "message": "<string>",
  "request_id": "<string>",
  "code": "<string>",
  "retryable": true,
  "attribute_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "attribute_key": "<string>",
  "details": {},
  "current_updated_at": "2023-11-07T05:31:56Z"
}