curl https://compute.prentis.ai/v1/accounts/my-account/datasets/support-chats:getUploadEndpoint \
  -H "Authorization: Bearer $PRENTIS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"filenameToSize": {"train.jsonl": "2142208"}}'

# Then upload the file to the URL in the response -- no API key on this request:
curl -X PUT --upload-file train.jsonl "<filenameToSignedUrl[train.jsonl]>"

import requests

url = "https://compute.prentis.ai/v1/accounts/{account}/datasets/{dataset}:getUploadEndpoint"

payload = {
    "filenameToSize": {},
    "resumable": True
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({filenameToSize: {}, resumable: true})
};

fetch('https://compute.prentis.ai/v1/accounts/{account}/datasets/{dataset}:getUploadEndpoint', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://compute.prentis.ai/v1/accounts/{account}/datasets/{dataset}:getUploadEndpoint",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'filenameToSize' => [
        
    ],
    'resumable' => true
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://compute.prentis.ai/v1/accounts/{account}/datasets/{dataset}:getUploadEndpoint"

	payload := strings.NewReader("{\n  \"filenameToSize\": {},\n  \"resumable\": true\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://compute.prentis.ai/v1/accounts/{account}/datasets/{dataset}:getUploadEndpoint")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"filenameToSize\": {},\n  \"resumable\": true\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://compute.prentis.ai/v1/accounts/{account}/datasets/{dataset}:getUploadEndpoint")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"filenameToSize\": {},\n  \"resumable\": true\n}"

response = http.request(request)
puts response.read_body

{
  "uploadSession": {
    "name": "accounts/my-account/uploadSessions/01K7AWZ8C4E6G8J0L2N4Q6S8U0",
    "sessionId": "01K7AWZ8C4E6G8J0L2N4Q6S8U0",
    "targetKind": "UPLOAD_TARGET_KIND_DATASET_VERSION",
    "files": [
      {
        "filename": "train.jsonl",
        "declaredBytes": "2142208"
      }
    ],
    "state": "UPLOAD_SESSION_STATE_OPEN",
    "expireTime": "2026-10-10T08:40:05Z"
  },
  "filenameToSignedUrl": {
    "train.jsonl": "https://…signed upload URL…"
  },
  "version": {
    "name": "accounts/my-account/datasets/support-chats/versions/1",
    "versionNo": 1,
    "state": "DATASET_VERSION_STATE_UPLOADING"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "invalid_request_error",
    "code": "INVALID_REQUEST",
    "param": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "invalid_request_error",
    "code": "INVALID_REQUEST",
    "param": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "invalid_request_error",
    "code": "INVALID_REQUEST",
    "param": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "invalid_request_error",
    "code": "INVALID_REQUEST",
    "param": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "invalid_request_error",
    "code": "INVALID_REQUEST",
    "param": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "invalid_request_error",
    "code": "INVALID_REQUEST",
    "param": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "invalid_request_error",
    "code": "INVALID_REQUEST",
    "param": "<string>"
  }
}