Function slack

e2e/slack-api.ts:18–39

(
  method: string,
  params: Record<string, unknown> = {},
  token = BOT_TOKEN,
)

const ENDPOINT = "https://slack.com/api/";

async function slack(
  method: string,
  params: Record<string, unknown> = {},
  token = BOT_TOKEN,
): Promise<Record<string, unknown> & { ok: boolean }> {
  // Slack's Web API accepts form-encoded bodies on every method.
  // JSON body is rejected by read endpoints like conversations.replies.
  const form = new URLSearchParams();
  for (const [k, v] of Object.entries(params)) form.set(k, String(v));
  const res = await fetch(`${ENDPOINT}${method}`, {
    method: "POST",
    headers: {
      Authorization: `Bearer ${token}`,
      "Content-Type": "application/x-www-form-urlencoded; charset=utf-8",
    },
    body: form.toString(),
  });
  const json = (await res.json()) as Record<string, unknown> & { ok: boolean };
  if (!json.ok)
    throw new Error(`slack ${method} failed: ${JSON.stringify(json)}`);
  return json;
}

export async function postAsUser(
  channel: string,