Develop Export Translator

Prerequisites

Fetch and read the Zotero translator documentation:

• https://www.zotero.org/support/_export/raw/dev/translators
• https://www.zotero.org/support/_export/raw/dev/translators/coding

Also read index.d.ts for type definitions.

Step 1: Gather information

1. Label: The format name (e.g. "My Custom JSON Export")
2. Creator: The author's name
3. Expected output: A sample of what the exported format should look like

Look for existing export translators for patterns:

grep -l "doExport" *.js

Step 2: Initialize

node .bin/init-translator.mjs --label "<Label>" --creator "<Creator>" --type export

This scaffolds the file from the export translator template at .bin/templates/export.js. That file is the canonical structure an export translator should follow — read it when you need to know the expected shape of doExport, or when a task asks you to make an existing translator better conform to the template.

If the translator should also import the same format, use --type import,export and implement detectImport() and doImport() as described in the develop-import-translator skill.

Export translators have no target regex.

Step 3: Write the code

doExport()

Loop through items with Zotero.nextItem() and write output with Zotero.write().

function doExport() {
    let first = true;
    Zotero.write('[\n');
    let item;
    while ((item = Zotero.nextItem())) {
        if (!first) Zotero.write(',\n');
        first = false;
        Zotero.write(JSON.stringify({
            title: item.title,
            authors: item.creators.filter(c => c.creatorType === 'author')
                .map(c => `${c.firstName} ${c.lastName}`),
            date: item.date,
            doi: item.DOI,
            // ... map other fields ...
        }, null, '\t'));
    }
    Zotero.write('\n]\n');
}

Key APIs:

• Zotero.nextItem() — returns the next item object, or false when done.
• Zotero.write(string) — write to output.
• Zotero.getOption(name) — read export options (configured via displayOptions in the header metadata).
• Zotero.nextCollection() — iterate collections (requires configOptions: { getCollections: true } in header).

Header options for export translators

The metadata header can include:

"configOptions": {
    "async": true,
    "getCollections": true
},
"displayOptions": {
    "exportNotes": true,
    "exportFileData": false
}

Step 4: Create tests

Export tests are not yet supported by the automated test runner. Test manually by exporting items from Zotero and verifying the output format.

Step 5: Verify and submit

Update lastUpdated every time you modify translator code.

node .bin/update-metadata.mjs "<Label>.js"
npm run lint -- "<Label>.js"