Error [ERR_REQUIRE_ESM]: require() of ES Module /home/sky/Documents/hourlypets/node_modules/tsl-mastodon-api/lib/index.js from /home/sky/Documents/hourlypets/src/mastodon.ts not supported. Instead change the require of index.js in /home/sky/Documents/hourlypets/src/mastodon.ts to a dynamic import() which is available in all CommonJS modules. at require.extensions. [as .js] (/usr/lib/node_modules/ts-node/dist/index.js:851:20) at Object. (/home/sky/Documents/hourlypets/src/mastodon.ts:36:31) at m._compile (/usr/lib/node_modules/ts-node/dist/index.js:857:29) at require.extensions. [as .ts] (/usr/lib/node_modules/ts-node/dist/index.js:859:16) at Object. (/home/sky/Documents/hourlypets/src/bot.ts:13:20) at m._compile (/usr/lib/node_modules/ts-node/dist/index.js:857:29) at require.extensions. [as .ts] (/usr/lib/node_modules/ts-node/dist/index.js:859:16) at phase4 (/usr/lib/node_modules/ts-node/dist/bin.js:466:20) at bootstrap (/usr/lib/node_modules/ts-node/dist/bin.js:54:12) at main (/usr/lib/node_modules/ts-node/dist/bin.js:33:12) at Object. (/usr/lib/node_modules/ts-node/dist/bin.js:579:5) { code: ‘ERR_REQUIRE_ESM’ } I am importing the lib like this
import * as Mastodon from ‘tsl-mastodon-api’;
Try simply adding the following to your
package.json
:"type": "module"
I tested this with
import * as Mastodon from 'tsl-mastodon-api';
in atest.js
file using the example from their readme, executing withts-node test.js
(NOTE THAT THIS IS A JS FILE! Not a .ts file) and it works. It times out, of course, because the example URL doesn’t exist, but you get the idea. Minimal example (package.json
is default fromnpm init -y
but with the"type": "module"
added. I also tested with your package.json [adding type:module] and tsconfig.json):test.js
:import * as Mastodon from 'tsl-mastodon-api'; const mastodon = new Mastodon.API({ access_token: 'ABC', api_url: 'https://mastodon.example/api/v1/' }); const result = await mastodon.postStatus({ sensitive: true, spoiler_text: 'Hello', status: 'World' }); console.log(JSON.stringify(result));
Full
package.json
that you provided with the “type” property added :{ "name": "hourlypets", "type": "module", "version": "1.0.0", "description": "A bot for displaying hourly pets", "main": "dist/index.js", "scripts": { "start": "node dist/index.js", "test": "echo \"Error: no test specified\" && exit 1" }, "keywords": [], "author": "", "license": "ISC", "devDependencies": { "@types/node": "^20.5.1", "typescript": "^5.1.6" }, "dependencies": { "@petfinder/petfinder-js": "^1.0.6", "dotenv": "^16.3.1", "tsl-mastodon-api": "^0.4.0" } }
On the note that I used
test.js
- if this was insteadtest.ts
and you tried to execute it directly with ts-node likets-node test.ts
it will throw the errorTypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts" for test.ts
. So, I made the assumption that your file is a JS based solely on that fact.If you still have problems, post a super simplified script like my
test.js
above that causes the issue for you and I’ll test with yours. You can exclude all private code - just enough to trigger the module error… meaning you could probably just have theimport
andconsole.log('hi');
and that would be sufficient.so attempting this causes all typescript stuff to break, sadly some of my code depends on typescript specific things.
I am using TS for pretty much the entire project, but I know TS and JS are pretty much the same with a few added rules.