For Project Managers

For Translators

For Developers

API v1
Languages
Notifications and Webhooks
IP Addresses and Domains

Company

Upload Translation

Please consider that API 2.0 is now the preferred version to be used. The old API will remain fully functional until the end of 2021.

Crowdin API v2
Upload existing translations to your Crowdin project.
Method is not working for Assets localization.

Request

Note: Use the combination of project identifier, username, and account key to pass to this endpoint.

POST https://api.crowdin.com/api/project/{project-identifier}/upload-translation?login={username}&account-key={account-key}

Parameters

Name Value Description
files required array Translated files array. Array keys should contain file names in Crowdin.
Note! 20 files max are allowed to upload per one time file transfer.
language required string Crowdin language code. With a single call it's possible to upload translations for several files but only into one of the languages.
import_eq_suggestions optional bool Defines whether to add translation if it is equal to source string at Crowdin. Acceptable values are: 0 or 1. Default is 0.
auto_approve_imported optional bool Mark uploaded translations as approved. Acceptable values are: 0 or 1. Default is 0.
format optional string Specify this parameter if translations are uploaded to the project in XLIFF file format. Acceptable value is: xliff
To download XLIFF file for offline translation, apply the Export File method.
branch optional string The name of related version branch (Versions Management).
json optional string May not contain value. Defines that response should be in JSON format.
jsonp optional string Callback function name. Defines that response should be in JSONP format.
Variables
project-identifier string Project identifier.
login string Your username in Crowdin.
account-key string Your account API key.

Response

If successful, this method returns a XML structure, as it is shown below. 
<?xml version="1.0" encoding="UTF-8"?>
<success>
</success>
Unsuccessful response sample: 
<?xml version="1.0" encoding="UTF-8"?>
<error>
  <code>3</code>
  <message>API key is not valid</message>
</error>
The following request is partly successful because for all the file formats that do not have defined structure (such as: Generic XML, HTML, Plain Text, Markdown, OpenOffice, Microsoft Office, Adobe InDesign, Adobe FrameMaker, Webxml) the translations upload is not possible. 
<?xml version="1.0" encoding="UTF-8"?>
<success>
  <stats>
    <file name="spreadsheet.csv" status="uploaded"></file>
    <file name="webxml.xml" status="not_allowed"></file>
  </stats>
</success>

Examples

curl \
  -F "files[strings.xml]=@strings.fr.xml" \
  -F "language=fr" \
  -F "auto_approve_imported=1" \
  https://api.crowdin.com/api/project/{project-identifier}/upload-translation?login={username}&account-key={account-key}
<?php
$post_params = array();
$request_url = 'https://api.crowdin.com/api/project/{project-identifier}/upload-translation?login={username}&account-key={account-key}';

if (function_exists('curl_file_create')) {
  $post_params['files[test.xml]'] = curl_file_create('/home/crowdin/test.fr.xml');
} else {
  $post_params['files[test.xml]'] = '@/home/crowdin/test.fr.xml';
}

$post_params['language'] = 'fr';
$post_params['import_eq_suggestions'] = 1;

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $request_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_params);

$result = curl_exec($ch);
curl_close($ch);

echo $result;

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