JSON to Smithy Model Converter

JSON to Smithy Model: Core Features and Principles

When you need to convert existing JSON data structures into standard Smithy models but want to avoid manual coding, this tool automatically parses JSON samples and generates the corresponding Smithy shape definitions. It uses type inference to map JSON objects to Smithy structures, arrays to lists, and splits nested objects into independent structures. The output is code that complies with the Smithy Interface Definition Language (IDL) specifications, effectively reducing manual coding errors in API design.

Why Choose Our JSON to Smithy Model Converter?

• Automatically dismantles complex nested structures, recursively processing multi-level objects and arrays.
• Generates standard Smithy IDL syntax, including namespace declarations and type references.
• Instant conversion with no waiting time, implemented entirely on the frontend to ensure data privacy and security.

How to Use

1. Paste valid JSON object or array data into the input box.
2. Click the "Convert" button to automatically generate the Smithy model.
3. Review the namespace and structure definitions in the output area, and adjust type annotations as needed.

Frequently Asked Questions (FAQ)

Q: What Smithy type is an empty JSON array converted to?
A: Empty arrays are inferred as a list of Strings by default. We recommend manually adjusting the specific type. This is a common limitation of type inference.

Q: Can it generate Smithy traits like @required?
A: No. This tool focuses on generating the structural skeleton; traits must be added manually.

Important Notes

Please ensure the input is in a valid JSON format. Complex union types require manual verification. The generated models do not include validation traits. For sensitive data, offline use is recommended.

Technical Notes & Best Practices

For generic data modeling, it is recommended to first use a sample JSON that covers all field variants. Common example: an input of {"status":1} outputs status: Integer, while {"status":"active"} outputs status: String. Smithy recommends defining clear type boundaries and avoiding the generic use of the String type.