Function base64UrlEncode

packages/opencode/src/plugin/openai/codex.ts:32–36

(buffer: ArrayBuffer)

}

function base64UrlEncode(buffer: ArrayBuffer): string {
  const bytes = new Uint8Array(buffer)
  const binary = String.fromCharCode(...bytes)
  return btoa(binary).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/, "")
}

export interface IdTokenClaims {
  chatgpt_account_id?: string