node-etsy-client

NodeJs Etsy REST API Client V3.

• compatible with JavaScript and TypeScript.

In addition, this library provide an extra

• OAuth2Service to manage oAuth2 workflow:
  • build connect url,
  • handle callback,
  • and manage refresh token.
  • with an oauth.js sample to make some oAuth2 manual tests.

EtsyClientV3

Features

using apiKey:

• findShops
• getShop
• getShopSections
• findAllActiveListingsByShop
• getListing
• getListingVariationImages
• getListingImages
• getListingProperty

using apiKey + OAuth token:

• getListingsByShop
• getListingInventory
• getListingProduct

Quick start

First declare your api key:

export ETSY_API_KEY=your_key:your_secret

install node-etsy-client:

npm install node-etsy-client

then let's go, here is a sample.js:

import { EtsyClientV3 } from 'node-etsy-client';
async function doIt() {
  var client = new EtsyClientV3();
  var shops = await client.findShops({'shop_name':'mony', limit:10});
  console.log(shops);
}
doIt();

You could play Mocha tests to get more examples (cf. next section).

You could avoid using environment variable by using constructor options:

var client = new EtsyClientV3({apiKey:'your_key:your_secret'});

Advanced usage

Etsy debug mode

To print out in the console the API call and response:

export ETSY_DEBUG=true

ApiKey format and Silence API key format warning

⚠️ Important: API Key Format Change (January 18, 2026)
Starting January 18, 2026, Etsy requires all API keys to include a shared secret.
Format: keystring:shared_secret (e.g., export ETSY_API_KEY=your_key:your_secret)
Find your shared secret at: https://www.etsy.com/developers/your-apps
Documentation: https://developer.etsy.com/documentation/essentials/requests

If your API key doesn't include the : separator, you'll see a warning message.
To silence this warning: export ETSY_SILENT_API_KEY_WARNING=true

If you're still using the old API key format (without shared secret) and want to suppress the warning message:

export ETSY_SILENT_API_KEY_WARNING=true

Note: This is temporary - you must migrate to the new format before January 18, 2026.

Etsy client options

This section describes EtsyClientV2/EtsyClientV3 available options.

Note about options precedence:

• first take option value from constructor if any,
• or else try to retrieve related environment variable,
• or else apply default value.

Options:

| Name | Description | |------------------------|:----------------------------------------------------------------------------------------------------------------------------------------| | apiUrl | Etsy API endpoint - (or env.ETSY_API_ENDPOINT) default value is (v2)https://openapi.etsy.com/v2 / (v3)https://openapi.etsy.com/v3 | | apiKey | Etsy API key - required (or env.ETSY_API_KEY) without default value. Format: keystring:shared_secret (*) | | shopId | Etsy shop id - optional (or env.ETSY_SHOP_ID) without default value | | lang | Etsy language - optional (or env.ETSY_LANG) without default value. Example: fr | | dryMode | print call instead of making real etsy call - optional (or env.ETSY_DRY_MODE) with default value: false | | etsyRateWindowSizeMs | Rate limit windows size in milliseconds - optional (or env.ETSY_RATE_WINDOWS_SIZE_MS) with default value: 1000 | | etsyRateMaxQueries | Rate limit max query per windows size - optional (or env.ETSY_RATE_MAX_QUERIES) without default value |

(*) shared_secret is mandatory from Jan 18, 2026. Ask one from Etsy portal.

Note about rate limit options:

• rate limit is recommended for V2 client.

• rate limit is enabled if and only if etsyRateWindowSizeMs and etsyRateMaxQueries are both set.

• if enabled, rate limit on etsy call is max etsyRateMaxQueries per etsyRateWindowSizeMsms.

For more details, cf. susi-rali

Rate limit

According to Open API v2 documentation, Etsy policy was to restricts number of call to 10 per second (and 10k per day).

With Open API v3, there is no such restriction so rate limiter is deprecated and disabled by default.

In order to rate limit calls, node-etsy-client rely on susi-rali and offer an option to rate limit client calls.

To apply rate limit of 10 query per seconds (with wait on unavailable slot), add etsyRateMaxQueries option:

var client = new EtsyClientV2({apiKey:'your_key:your_secret', etsyRateMaxQueries:10});

Note about ETSY API versions

Starting from 2.0.0 node-etsy-client provide an EtsyClientV3 utility class dedicated to etsy 3 api calls.

For previous version (v2 Open API will be discontinued) please rely on node-etsy-client <2.0.0 versions.

During migration from v2 to v3 #39 some ticket have been created on Etsy OpenAPI side, especially for the getListing api:

• includes related ticket: etsy/open-api#236 (improvement)
• variations values translations related ticket: etsy/open-api#431 (bug)

How to contribute

cf. CONTRIBUTING.md

Services or activated bots

Github actions - Continuous tests + coverage using c8

Github actions - Continuous vulnerability audit

Houndci - JavaScript automated review (configured by .hound.yml)

Github pages - Host metrics for main branch: code coverage