Function formatJson

repos/effect/packages/effect/src/Formatter.ts:297–319

(input: unknown, options?: {
  readonly space?: number | string | undefined
})

export function formatJson(input: unknown, options?: {
  readonly space?: number | string | undefined
}): string {
  const ancestors: Array<object> = []
  return JSON.stringify(
    input,
    function(this: unknown, _key: string, value: unknown) {
      const redacted = redact(value)
      if (typeof redacted !== "object" || redacted === null) {
        return redacted
      }
      while (ancestors.length > 0 && ancestors[ancestors.length - 1] !== this) {
        ancestors.pop()
      }
      if (ancestors.includes(redacted)) {
        return undefined // circular reference
      }
      ancestors.push(redacted)
      return redacted
    },
    options?.space
  ) ?? "null"
}