JSON to Go Struct Converter: Generate Type Definitions

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Convert JSON data to Go struct definitions with support for nested objects, arrays, and automatic type inference. Perfect for API development and data modeling in Go.

✓ Type Inference✓ JSON Tags✓ Nested Support

JSON

Go Structs

Conversion Features

Type Generation

  • •

    Smart Type Inference

    Automatic detection of Go types from JSON values

  • •

    Nested Structures

    Support for complex nested objects and arrays

  • •

    Time Detection

    Automatic time.Time type for timestamp strings

Customization

  • •

    Package Names

    Custom package name for generated code

  • •

    JSON Tags

    Optional JSON struct tags for serialization

  • •

    Pointer Fields

    Option to use pointer types for fields

Common Use Cases

API Development

  • • Request/Response types
  • • API client generation
  • • Data contracts
  • • Model definitions

Data Modeling

  • • Database models
  • • Configuration types
  • • Schema definitions
  • • Type validation

Integration

  • • External services
  • • Data mapping
  • • Type conversion
  • • Microservices

Frequently Asked Questions

How are types inferred?

The converter analyzes JSON values to determine appropriate Go types. Numbers become int or float64, strings become string, objects become custom structs, and arrays become slices. Timestamps are detected and converted to time.Time.

When should I use pointer types?

Pointer types are useful when fields are optional or can be null. They also help with memory usage for large structs and enable distinction between zero values and unset fields.

How are nested objects handled?

Nested objects are converted into separate struct definitions with appropriate naming. The converter maintains relationships between types and generates proper field references.

What about arrays and slices?

Arrays in JSON become Go slices. For arrays of objects, the converter creates a separate struct for the object type and uses a slice of that type. Empty arrays default to []interface.

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