How to use JSON to JSON Schema
- Paste a representative JSON sample, ideally one with all the optional fields filled in.
- Set the name of the root type, and decide whether you want helper code as well or types only.
- Copy the generated JSON Schema code into your project.
About JSON to JSON Schema
Writing model classes by hand for a big JSON payload is dull, and it is where typos creep in. Paste a sample here and the generator works out the structure: which fields exist, which are objects, which are arrays and what type each value has. The output is a JSON Schema document (draft-06 flavour) describing the structure.
It is inferred from one sample, so it describes that sample. Review it before you use it to validate production data, for example to tighten string formats or to add limits. Everything runs in your browser, so your sample data stays on your machine.
Using the generated code
Save the output as a .json file and use it with a validator such as Ajv or jsonschema to check other documents.
Fields that are not present in every sample record are left out of the required list.