Write File (Raw / Binary)

curl --request PUT \
  --url https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw \
  --header 'Content-Type: <content-type>' \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw"

headers = {
    "Content-Type": "<content-type>",
    "X-API-Key": "<api-key>"
}

response = requests.put(url, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {'Content-Type': '<content-type>', 'X-API-Key': '<api-key>'}
};

fetch('https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw', 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://api.declaw.ai/sandboxes/{sandbox_id}/files/raw",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_HTTPHEADER => [
    "Content-Type: <content-type>",
    "X-API-Key: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw"

	req, _ := http.NewRequest("PUT", url, nil)

	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("X-API-Key", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw")
  .header("Content-Type", "<content-type>")
  .header("X-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw")

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

request = Net::HTTP::Put.new(url)
request["Content-Type"] = '<content-type>'
request["X-API-Key"] = '<api-key>'

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

PUT

sandboxes

{sandbox_id}

files

raw

Write File (Raw / Binary)

curl --request PUT \
  --url https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw \
  --header 'Content-Type: <content-type>' \
  --header 'X-API-Key: <api-key>'

import requests

url = "https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw"

headers = {
    "Content-Type": "<content-type>",
    "X-API-Key": "<api-key>"
}

response = requests.put(url, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {'Content-Type': '<content-type>', 'X-API-Key': '<api-key>'}
};

fetch('https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw', 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://api.declaw.ai/sandboxes/{sandbox_id}/files/raw",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_HTTPHEADER => [
    "Content-Type: <content-type>",
    "X-API-Key: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw"

	req, _ := http.NewRequest("PUT", url, nil)

	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("X-API-Key", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw")
  .header("Content-Type", "<content-type>")
  .header("X-API-Key", "<api-key>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.declaw.ai/sandboxes/{sandbox_id}/files/raw")

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

request = Net::HTTP::Put.new(url)
request["Content-Type"] = '<content-type>'
request["X-API-Key"] = '<api-key>'

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

Streams the request body directly into a file on the sandbox disk without buffering in memory. Use this endpoint for any binary payload — images, archives, compiled artifacts, base64-decoded blobs — or for uploads larger than the 10 MiB JSON gateway cap. For UTF-8 text, the JSON POST /files endpoint is usually the simpler choice.

Path Parameters

string

required

The sandbox identifier. Format: sbx-<8 chars>.

Query Parameters

string

required

Absolute path to write inside the sandbox. Parent directories are created automatically.Example: /home/user/image.png

string

Unix user to own the written file. Defaults to the envd default user.

Request Headers

string

required

Must be application/octet-stream.

Request Body

Raw bytes. Up to 500 MiB per request. The body is streamed to disk with a flat memory footprint on the orchestrator.

Response

{
  "path": "/home/user/image.png",
  "size": 4096
}

Example

curl -X PUT "https://api.declaw.ai/sandboxes/sbx-a1b2c3d4/files/raw?path=/home/user/image.png" \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/octet-stream" \
  --data-binary @image.png

from declaw import Sandbox

sbx = Sandbox.connect("sbx-a1b2c3d4", api_key="YOUR_API_KEY", domain="api.declaw.ai")

# The SDK automatically routes bytes payloads to /files/raw.
with open("image.png", "rb") as f:
    sbx.files.write("/home/user/image.png", f.read())

import { Sandbox } from "@declaw/sdk";
import { readFileSync } from "node:fs";

const sbx = await Sandbox.connect("sbx-a1b2c3d4", {
  apiKey: "YOUR_API_KEY",
  domain: "api.declaw.ai",
});

// Pass a Uint8Array — the SDK routes to /files/raw for binary payloads.
const bytes = new Uint8Array(readFileSync("image.png"));
await sbx.files.write("/home/user/image.png", bytes);

When to use this vs. other endpoints

Payload	Use
UTF-8 text, < 10 MiB	`POST /files` (JSON)
Binary (any size up to 500 MiB)	`PUT /files/raw` (this endpoint)
Very large payloads (hundreds of MB, GB-class)	`sbx.upload_url(path)` / `sbx.download_url(path)` helpers

Error Responses

Status	Cause
`400`	Missing `path` query parameter
`401`	Missing or invalid API key
`404`	Sandbox not found
`409`	Sandbox is paused — resume it before accessing files
`410`	Sandbox has been killed
`413`	Request body exceeds 500 MiB
`502`	envd daemon unreachable
`503`	Sandbox has no VM

Write File Write Files (Batch)

Sandbox API

Command API

Filesystem API

Volumes API

Write File (Raw / Binary)

Path Parameters

Query Parameters

Request Headers

Request Body

Response

Example

When to use this vs. other endpoints

Error Responses

​Path Parameters

​Query Parameters

​Request Headers

​Request Body

​Response

​Example

​When to use this vs. other endpoints

​Error Responses

Path Parameters

Query Parameters

Request Headers

Request Body

Response

Example

When to use this vs. other endpoints

Error Responses