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CSV to XML API#

The CSV to XML API converts a CSV file to XML format with a single request to POST /v1/convert/csv-to-xml. Upload a UTF-8 .csv file via multipart form data. The first row's column headers become XML element tag names, and each subsequent row becomes an <item> element inside a <root> wrapper. The response is raw XML by default, or set direct_download=false for metadata with a presigned download URL.

Endpoint#

POST /v1/convert/csv-to-xml

Content-Type: multipart/form-data

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

Output format: .xml (application/xml)

Authentication#

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

X-API-Key: sk_your_private_key

Or:

Authorization: Bearer <jwt_token>

Request Parameters#

Parameter	Type	Required	Default	Description
`file`	file	Yes	--	The `.csv` file to convert. First row must be column headers. UTF-8 encoded.
`output_filename`	`string`	No	Input filename	Custom output filename. The `.xml` extension is added automatically.
`direct_download`	`boolean`	No	`true`	When `true`, returns raw XML bytes. When `false`, returns metadata with a presigned download URL.

Conversion Rules#

name,age,city
Alice,30,London
Bob,25,Paris

Becomes:

<?xml version="1.0" encoding="utf-8"?>
<root>
  <item>
    <name>Alice</name>
    <age>30</age>
    <city>London</city>
  </item>
  <item>
    <name>Bob</name>
    <age>25</age>
    <city>Paris</city>
  </item>
</root>

First row is treated as column headers (used as XML element tag names)
Each subsequent row becomes an <item> element
Root element is always <root> (not configurable)
Output is pretty-printed with 2-space indentation
Delimiter is comma (not configurable)

Response#

Direct Download (`direct_download=true`, default)#

HTTP 200 OK
Content-Type: application/xml
Content-Disposition: inline; filename="data_20260405_123456789.xml"

Metadata Response (`direct_download=false`)#

{
    "presigned_url": "https://spaces.example.com/...",
    "object_key": "env/files/{project_id}/csv-to-xml/data_20260405_123456789.xml",
    "filename": "data_20260405_123456789.xml",
    "file_size": 1234,
    "conversion_time_seconds": 0.03
}

Code Examples#

Python#

import requests

with open("data.csv", "rb") as f:
    response = requests.post(
        "https://api.enconvert.com/v1/convert/csv-to-xml",
        headers={"X-API-Key": "sk_your_private_key"},
        files={"file": ("data.csv", f, "text/csv")}
    )

with open("data.xml", "wb") as out:
    out.write(response.content)

Node.js#

const form = new FormData();
form.append("file", fs.createReadStream("data.csv"));

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

const xml = await response.text();

PHP#

$ch = curl_init("https://api.enconvert.com/v1/convert/csv-to-xml");
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => ["X-API-Key: sk_your_private_key"],
    CURLOPT_POSTFIELDS => ["file" => new CURLFile("data.csv", "text/csv")]
]);
$xml = curl_exec($ch);
curl_close($ch);

Go#

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

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

Error Responses#

Status	Condition
`400 Bad Request`	File is not a `.csv` file
`400 Bad Request`	CSV file is empty or has no valid rows
`400 Bad Request`	Invalid CSV encoding (expected UTF-8)
`401 Unauthorized`	Missing or invalid API key / JWT token
`402 Payment Required`	Monthly ops allowance exhausted
`413 Payload Too Large`	File exceeds plan's maximum file size

Limits#

Limit	Value
Max file size	Plan-dependent (Founding: 5 MB)
Input encoding	UTF-8 only
Monthly conversions	Plan-dependent

Frequently asked questions#

How do I convert CSV to XML with a REST API?#

Send a multipart/form-data POST request to POST /v1/convert/csv-to-xml with your .csv file in the file field, authenticating with an X-API-Key header or a JWT Authorization: Bearer token. By default the response body is the raw XML bytes.

How does the API map CSV columns and rows to XML elements?#

The first CSV row is treated as column headers and used as XML element tag names. Each subsequent row becomes an <item> element inside a <root> wrapper, pretty-printed with 2-space indentation.

Can I change the XML root element name or the CSV delimiter?#

No. Neither value is configurable: the root element is always <root> and the delimiter is always a comma.

Why does my CSV to XML conversion return a 400 error?#

A 400 Bad Request is returned when the upload is not a .csv file, the CSV is empty or has no valid rows, or the encoding is not UTF-8.

Can I get a presigned download URL instead of the raw XML?#

Yes. Set direct_download=false and the API returns JSON metadata including a presigned_url, object_key, filename, file_size, and conversion_time_seconds.

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API Documentation