Support derive for JsonSchema

[Franklin Chen]

I have a project where I use Schemars https://docs.rs/schemars/latest/schemars/ in conjunction with Serde and derive JsonSchema. When trying to insert use of nutype, I get

error: unsupported trait derive: JsonSchema

Could support be added for this?

[Serhii Potapov]

@FranklinChen

Hi Franklin, thanks for reporting your issue.
I cannot promise for sure yet, I will investigate how exactly schemars work.
Anyway, would you mind showing a code sample to exactly reproduce your issue?

[Franklin Chen]

Here is a test repo: https://github.com/FranklinChen/test-nutype

$ cargo check
error: unsupported trait derive: JsonSchema
  --> src/main.rs:11:37
   |
11 | #[derive(*, Serialize, Deserialize, JsonSchema)]
   |                                     ^^^^^^^^^^

[...]

[Franklin Chen]

Any more thoughts on this?

[Serhii Potapov]

@FranklinChen Hi!
Sorry, I haven't worked with the schemars crate yet, and haven't invesitgated what would it cost to add a support for this.

[Serhii Potapov]

@FranklinChen I started working on it (#21), it turned it not that hard.
I still need to add some tests, but it will be in the next release.

[Franklin Chen]

Thank you!

[Serhii Potapov]

@FranklinChen This is addressed in #21 and was just merged.

Please note:

• The new version is not yet released on crates.io
• You need to enable schemars08 featurue
• At this moment, validation rules are not reflected in json schema

[Serhii Potapov]

@FranklinChen FYI the feature is available in 0.2.0.