orval.config.ts => Unknown file extension ".ts"

[syewchuk]

Can someone please tell me what I'm doing wrong? I have an angular app and I want to use a typescript config (orval.config.ts) instead of javascript (orval.config.js).

When I run the command npx orval, I keep getting the following error:

🍻 orval v7.14.0 - A swagger client generator for typescript
C:\...\angularapp\node_modules\orval\dist\generate-B5LnJ5C4.js:1342
                throw new Error(`failed to load from ${configFilePath} => ${errorMsg}`);
                      ^

Error: failed to load from C:\...\angularapp\orval.config.ts => Unknown file extension ".ts" for C:\...\angularapp\orval.config.ts
    at Object.generateConfig (C:\...\angularapp\node_modules\orval\dist\generate-B5LnJ5C4.js:1342:9)
    at async Command.<anonymous> (C:\...\angularapp\node_modules\orval\dist\bin\orval.js:46:9)
    at async Command.parseAsync (C:\...\angularapp\node_modules\commander\lib\command.js:1122:5)

Node.js v22.17.0

• Orval works fine if I keep the config as javascript.
• I tried using the sample angular app found in this repo and I still got the same error.

Note: I've hidden my local paths above with "..."

[melloware]

Moved to discussion. I used orval.config.ts without issue. Did you try 8.0.0-rc.0 its ESM native now so orval.config.ts is expected

[syewchuk]

Good suggestion. Using 8.0.0-rc.0 didn't fix it by itself. It occurred to me to update the node version to v24.11 though and I think I'm seeing a different behavior now. I will report back after investigating.

[melloware]

here is migration guide if you need it: https://orval.dev/guides/migration-v8

[syewchuk]

It's working for me now (thanks for the help)!

Main thing was to update my Node version to the latest: v24.11

Also noteworthy:

• Update orval version to v8.0.0-rc.0
• Add "type": "module", to package.json

[razzeee]

I was already hit by that on v7

[razzeee]

And ideally, I would like to stay on v7 for now

[razzeee]

Seems to break 7.14.0 and after. Even when using node 24.

[melloware]

hmm i am not having an issues: https://github.com/melloware/quarkus-primereact

[razzeee]

our repo is here https://github.com/flathub-infra/website

but you will have to update the version, I'm going to pin it now. You would need to deploy the backend through. I guess you can replace it with the live one in the orval.config.ts

target: "http://localhost:8000/openapi.json", -> https://flathub.org/api/v2/openapi.json

So checking it out and cd frontend && yarn && yarn openapi-codegen should show the error, when you update the version.