50 lines
1.5 KiB
TypeScript
50 lines
1.5 KiB
TypeScript
/**
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* Converts a camelCase string to snake_case.
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*/
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export function camelToSnake(str: string): string {
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// Skip all-uppercase keys (e.g. OR, AND, NOT — logical operators)
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if (str === str.toUpperCase()) return str;
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return str.replace(/[A-Z]/g, (letter) => `_${letter.toLowerCase()}`);
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}
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/**
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* Converts a snake_case string to camelCase.
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*/
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function snakeToCamel(str: string): string {
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return str.replace(/_([a-z])/g, (_, letter) => letter.toUpperCase());
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}
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/**
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* Recursively converts all keys of an object from camelCase to snake_case.
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* Used for converting user-facing camelCase params to API snake_case payloads.
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*/
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export function camelToSnakeKeys(obj: any): any {
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if (obj === null || obj === undefined || typeof obj !== "object") return obj;
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if (Array.isArray(obj)) return obj.map(camelToSnakeKeys);
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if (obj instanceof Date) return obj;
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return Object.fromEntries(
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Object.entries(obj).map(([key, value]) => [
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camelToSnake(key),
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camelToSnakeKeys(value),
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]),
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);
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}
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/**
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* Recursively converts all keys of an object from snake_case to camelCase.
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* Used for converting API snake_case responses to user-facing camelCase.
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*/
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export function snakeToCamelKeys(obj: any): any {
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if (obj === null || obj === undefined || typeof obj !== "object") return obj;
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if (Array.isArray(obj)) return obj.map(snakeToCamelKeys);
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if (obj instanceof Date) return obj;
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return Object.fromEntries(
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Object.entries(obj).map(([key, value]) => [
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snakeToCamel(key),
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snakeToCamelKeys(value),
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]),
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);
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}
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