JSON से Go Struct - Go टाइप जनरेटर ऑनलाइन

// JSON to Go struct generator
function jsonToGoStruct(json, rootName = 'AutoGenerated') {
  const structs = [];
  const abbreviations = new Set([
    'id', 'url', 'http', 'api', 'html', 'json', 'xml', 'sql',
    'ssh', 'tcp', 'udp', 'ip', 'dns', 'uid', 'uuid', 'cpu',
  ]);

  function toGoName(key) {
    return key.split(/[-_\s]+/).map(word => {
      if (abbreviations.has(word.toLowerCase())) {
        return word.toUpperCase();
      }
      return word.charAt(0).toUpperCase() + word.slice(1);
    }).join('');
  }

  function inferType(value, name) {
    if (value === null) return 'interface{}';
    if (typeof value === 'boolean') return 'bool';
    if (typeof value === 'number') {
      return Number.isInteger(value) ? 'int' : 'float64';
    }
    if (typeof value === 'string') return 'string';
    if (Array.isArray(value)) {
      if (value.length === 0) return '[]interface{}';
      return '[]' + inferType(value[0], name + 'Item');
    }
    if (typeof value === 'object') {
      const structName = toGoName(name);
      const fields = Object.entries(value).map(([key, val]) => {
        const goType = inferType(val, key);
        const goName = toGoName(key);
        return `\t${goName} ${goType} \`json:"${key}"\``;
      });
      structs.push(`type ${structName} struct {\n${fields.join('\n')}\n}`);
      return structName;
    }
    return 'interface{}';
  }

  const parsed = JSON.parse(json);
  inferType(parsed, rootName);
  return structs.reverse().join('\n\n');
}

// Example usage
const json = '{"user_id": 1, "user_name": "alice", "address": {"city": "NYC"}}';
console.log(jsonToGoStruct(json));
// Output:
// type Address struct {
// 	City string `json:"city"`
// }
//
// type AutoGenerated struct {
// 	UserID   int     `json:"user_id"`
// 	UserName string  `json:"user_name"`
// 	Address  Address `json:"address"`
// }