Model generation from JSONSchema definition

[mttrbrts]

Feature Request 🛍️

Generate Concerto models from JSONSchema definitions.

Use Case

This would allow round-tripping between Concerto and (a suitable sub-set of) JSONSchema which would be useful for contexts where client applications standardise on this. For example in microservices applications using OpenAPI definitions.

Context

JSONSchema is a document validation tool rather than a type system. This makes it difficult to perform operations such as code generation from models. Furthermore, JSONSchema does not support type extension, at least not in the usual OO sense.

However, JSONSchema is pervasive and well adopted across platforms.

Bi-directional support for JSONSchema in Concerto would broaden it's reach to more systems, while retaining the benefits of a strongly types schema language.

Detailed Description

1. Implement a JSONSchema-to-Concerto visitor in concerto-tools to complement the existing Concerto-to-JSONSchema code generation that we already have.
2. Identify a suitable sub-set of JSONSchema that can be mapped to Concerto