Zotero Translation Server
The Zotero translation server lets you use Zotero translators without the Zotero client.
Installation
Running via Docker
The easiest way to run a local instance of translation-server is via Docker.
docker pull zotero/translation-server
docker run -d -p 1969:1969 --rm --name translation-server zotero/translation-server
This will pull the latest image from Docker Hub
and run it as a background process on port 1969. Use docker kill translation-server to stop it.
Running from source
First, fetch the source code and install Node dependencies:
-
git clone --recurse-submodules https://github.com/zotero/translation-server -
cd translation-server -
npm install
Once you've set up a local copy of the repo, you can run the server in various ways:
Node.js
npm start
Docker (development)
Build from the local repo and run in foreground:
docker build -t translation-server .
docker run -ti -p 1969:1969 --rm translation-server
AWS Lambda
translation-server can also run on AWS Lambda and be accessed through API Gateway. You will need the AWS SAM CLI to deploy the server.
Copy and configure config file:
cp lambda_config.env-sample lambda_config.env
Test locally:
./lambda_local_test lambda_config.env
Deploy:
./lambda_deploy lambda_config.env
You can view the API Gateway endpoint in the Outputs section of the console output.
User-Agent
By default, translation-server uses a standard Chrome User-Agent string to maximize compatibility. This is fine for personal usage, but for a deployed service, it’s polite to customize User-Agent so that sites can identify requests and contact you in case of abuse.
You can do this by setting the USER_AGENT environment variable:
USER_AGENT='my-custom-translation-server/2.0 ([email protected])' npm start
If you find that regular requests are being blocked with a fully custom user-agent string, you can also add an identifier and contact information to the end of a standard browser UA string:
export USER_AGENT='Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 my-custom-translation-server/2.0 ([email protected])'
npm start
Proxy Support
You can configure translation-server to use a proxy server by setting the HTTP_PROXY and HTTPS_PROXY environment variables:
HTTP_PROXY=http://proxy.example.com:8080 HTTPS_PROXY=http://proxy.example.com:8080 npm start
If your proxy server uses a self-signed certificate, you can set NODE_TLS_REJECT_UNAUTHORIZED=0 to force Node to ignore certificate errors.
It’s also possible to opt out of proxying for specific hosts by using the NO_PROXY variable. See the Node request library documentation for more details.
Running tests
npm test
Endpoints
Web Translation
Retrieve metadata for a webpage:
$ curl -d 'https://www.nytimes.com/2018/06/11/technology/net-neutrality-repeal.html' \
-H 'Content-Type: text/plain' http://127.0.0.1:1969/web
Returns an array of translated items in Zotero API JSON format
Retrieve metadata for a webpage with multiple results:
$ curl -d 'https://www.ncbi.nlm.nih.gov/pubmed/?term=crispr' \
-H 'Content-Type: text/plain' http://127.0.0.1:1969/web
Returns 300 Multiple Choices with a JSON object:
{
"url": "https://www.ncbi.nlm.nih.gov/pubmed/?term=crispr",
"session": "9y5s0EW6m5GgLm0",
"items": {
"u30044970": {
"title": "RNA Binding and HEPN-Nuclease Activation Are Decoupled in CRISPR-Cas13a."
},
"u30044923": {
"title": "Knockout of tnni1b in zebrafish causes defects in atrioventricular valve development via the inhibition of the myocardial wnt signaling pathway."
},
// more results
}
}
To make a selection, delete unwanted results from the items object and POST the returned data back to the server as application/json.
Search Translation
Retrieve metadata from an identifier (DOI, ISBN, PMID, arXiv ID):
$ curl -d 10.2307/4486062 -H 'Content-Type: text/plain' http://127.0.0.1:1969/search
Export Translation
Convert items in Zotero API JSON format to a supported export format (RIS, BibTeX, etc.):
$ curl -d @items.json -H 'Content-Type: application/json' 'http://127.0.0.1:1969/export?format=bibtex'
Import Translation
Convert items in any import format to the Zotero API JSON format:
$ curl --data-binary @data.bib -H 'Content-Type: text/plain' http://127.0.0.1:1969/import
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