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camelCase

Convert all keys of an object from snake_case or kebab-case to camelCase. This is commonly used to transform database row objects (which use snake_case) into JavaScript-friendly camelCase objects for use in GraphQL resolvers and React components.

Import​

import { camelCase } from '@evershop/evershop/lib/util/camelCase';

Syntax​

camelCase(object: Record<string, any>): Record<string, any>

Parameters​

object

Type: Record<string, any>

An object whose keys should be converted to camelCase.

Return Value​

Returns a new object with all keys converted to camelCase. The original object is not modified.

Examples​

Database Row Transformation​

import { camelCase } from '@evershop/evershop/lib/util/camelCase';

const dbRow = {
  product_id: 1,
  product_name: 'Widget',
  created_at: '2024-01-01',
  url_key: 'widget'
};

const result = camelCase(dbRow);
// { productId: 1, productName: 'Widget', createdAt: '2024-01-01', urlKey: 'widget' }

In a GraphQL Resolver​

import { camelCase } from '@evershop/evershop/lib/util/camelCase';
import { select } from '@evershop/postgres-query-builder';

export default {
  Query: {
    product: async (_, { id }, { pool }) => {
      const result = await select()
        .from('product')
        .where('product_id', '=', id)
        .load(pool);
      return result ? camelCase(result) : null;
    }
  }
};

Notes​

  • Only converts top-level keys (not nested objects)
  • Throws an error if the input is not an object
  • Does not modify the original object

See Also​

  • select - Build SELECT queries