How to convert joi-schema to json-schema?

[yeongjet]

No description provided.

[hueniverse]

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[simlu]

Would love to see this is as well... Especially since json-schema validation is much faster than joi validation this would be a great way to allow for speed up where appropriate.

[Marsup]

json-schema is also less powerful, some things can't be converted to json-schema. Honestly this likely will never happen. Performance especially in the latest versions is not bad at all, if you're trying to squeeze microseconds, maybe it's not the right tool for you.

[simlu]

@Marsup Makes sense that it's less powerful. Most things can however be converted.

It's not about microseconds, it's about percentage. If a single check takes only 10ms but you are doing 1k of them, shaving 9ms is a lot :)

Anyways, there is now a project https://www.npmjs.com/package/joi-to-json which seems to not rely on internals of joi. So that's really the way to do this going forward.

[Marsup]

What's important is the percentage per request, not how many you can do in a loop. If you lose 5ms on a request that takes 50ms, optimizing it to 2ms won't even be noticeable. I see your point but I don't think it matters, people care too much about joi performance when most of the time is wasted in your own code.

[simlu]

@Marsup Well, I just replaced joi with custom validation to change overall time for a client request from ~1050ms to ~650ms. And yes, we want and need the validation. So call me biased :)

[Marsup]

Then that's a good bench case and we're open to that, can you somehow anonymize that and submit it to see if there's something specific going on?

[simlu]

@Marsup Sure. Do you want me to open a new ticket?

[felipecrs]

This would be very useful, since:

1. joi can be used for validating configuration files, read by cosmiconfig so they can be in any format
2. Defining a JSON schema you earn autocompletion for free for JSON and YAML files in modern editors (such as VSCode).
3. There are tools over there which can automatically generate documentation from JSON Schemas.

[liesislukas]

i would find it useful too. export to JSON. this would allow to build some automation tools around joi. in my case - UI element to copy part of schema and drop it on another validator. just good joi-json-joi conversion is needed

[wll8]

This is useful feature since json-schema has many tools that depend on