json-to-toml

Convert a JSON file to TOML format. JSON arrays are wrapped under an items key and scalar values under a value key, since TOML requires a top-level table.


Endpoint

POST /v1/convert/json-to-toml

Content-Type: multipart/form-data

Accepted input: .json files (UTF-8 encoded)

Output format: .toml (application/toml)


Authentication

Requires either a private API key or a JWT token from a public key.

X-API-Key: sk_live_your_private_key

Or:

Authorization: Bearer <jwt_token>

Request Parameters

Parameter Type Required Default Description
file file Yes -- The .json file to convert. Must be UTF-8 encoded. Must not contain null values.
output_filename string No Input filename Custom output filename. The .toml extension is added automatically.
direct_download boolean No true When true, returns raw TOML bytes. When false, returns metadata with a presigned download URL.

Conversion Rules

  • JSON object passes through directly: json {"database": {"host": "localhost", "port": 5432}} Becomes: toml [database] host = "localhost" port = 5432

  • JSON array is wrapped under an items key (TOML requires a top-level table): json [1, 2, 3] Becomes: toml items = [1, 2, 3]

  • Scalar value is wrapped under a value key: json 42 Becomes: toml value = 42

Important: TOML does not support null values. If your JSON contains any null values, the conversion will fail with a 400 error. Remove or replace null values before converting.

Response

Direct Download (direct_download=true, default)

HTTP 200 OK
Content-Type: application/toml
Content-Disposition: inline; filename="config_20260405_123456789.toml"

Metadata Response (direct_download=false)

{
    "presigned_url": "https://spaces.example.com/...",
    "object_key": "env/files/{project_id}/json-to-toml/config_20260405_123456789.toml",
    "filename": "config_20260405_123456789.toml",
    "file_size": 1234,
    "conversion_time_seconds": 0.03
}

Code Examples

Python

import requests

with open("config.json", "rb") as f:
    response = requests.post(
        "https://api.enconvert.com/v1/convert/json-to-toml",
        headers={"X-API-Key": "sk_live_your_private_key"},
        files={"file": ("config.json", f, "application/json")}
    )

with open("config.toml", "wb") as out:
    out.write(response.content)

Node.js

const form = new FormData();
form.append("file", fs.createReadStream("config.json"));

const response = await fetch("https://api.enconvert.com/v1/convert/json-to-toml", {
    method: "POST",
    headers: { "X-API-Key": "sk_live_your_private_key" },
    body: form
});

const toml = await response.text();

PHP

$ch = curl_init("https://api.enconvert.com/v1/convert/json-to-toml");
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => ["X-API-Key: sk_live_your_private_key"],
    CURLOPT_POSTFIELDS => ["file" => new CURLFile("config.json", "application/json")]
]);
$toml = curl_exec($ch);
curl_close($ch);

Go

body := &bytes.Buffer{}
writer := multipart.NewWriter(body)
part, _ := writer.CreateFormFile("file", "config.json")
file, _ := os.Open("config.json")
io.Copy(part, file)
writer.Close()

req, _ := http.NewRequest("POST", "https://api.enconvert.com/v1/convert/json-to-toml", body)
req.Header.Set("Content-Type", writer.FormDataContentType())
req.Header.Set("X-API-Key", "sk_live_your_private_key")
resp, _ := http.DefaultClient.Do(req)

Error Responses

Status Condition
400 Bad Request File is not a .json file
400 Bad Request Invalid JSON content
400 Bad Request JSON to TOML conversion failed (typically due to null values)
401 Unauthorized Missing or invalid API key / JWT token
402 Payment Required Monthly conversion limit reached
413 Payload Too Large File exceeds plan's maximum file size

Limits

Limit Value
Max file size Plan-dependent (Free: 5 MB)
Input encoding UTF-8 only
Null values Not supported (TOML limitation)
Monthly conversions Plan-dependent