discordeno/rest/runMethod.ts

import { RestManager } from "../bot.ts";
import { API_VERSION, BASE_URL, IMAGE_BASE_URL } from "../util/constants.ts";
import { RestRequestRejection, RestRequestResponse } from "./rest.ts";

export async function runMethod<T = any>(
  rest: RestManager,
  method: "get" | "post" | "put" | "delete" | "patch",
  url: string,
  body?: unknown,
  options?: {
    retryCount?: number;
    bucketId?: string;
    headers?: Record<string, string>;
  },
): Promise<T> {
  rest.debug(
    `[REST - RequestCreate] Method: ${method} | URL: ${url} | Retry Count: ${
      options?.retryCount ?? 0
    } | Bucket ID: ${options?.bucketId} | Body: ${
      JSON.stringify(
        body,
      )
    }`,
  );

  const errorStack = new Error("Location:");
  // @ts-ignore Breaks deno deploy. Luca said add ts-ignore until it's fixed
  Error.captureStackTrace(errorStack);

  // For proxies we don't need to do any of the legwork so we just forward the request
  if (!url.startsWith(`${BASE_URL}/v${API_VERSION}`) && !url.startsWith(IMAGE_BASE_URL)) {
    const result = await fetch(url, {
      body: body ? JSON.stringify(body) : undefined,
      headers: {
        Authorization: rest.secretKey,
        "Content-Type": "application/json",
      },
      method: method.toUpperCase(),
    }).catch((error) => {
      errorStack.message = (error as Error)?.message;
      console.error(error);
      throw errorStack;
    });

    if (!result.ok) {
      errorStack.message = result.statusText as Error["message"];
      console.error(`Error: ${errorStack.message}`);
      throw errorStack;
    }

    return result.status !== 204 ? await result.json() : undefined;
  }

  // No proxy so we need to handle all rate limiting and such
  return new Promise((resolve, reject) => {
    rest.processRequest(
      rest,
      {
        url,
        method,
        reject: (data: RestRequestRejection) => {
          const restError = rest.convertRestError(errorStack, data);
          reject(restError);
        },
        respond: (data: RestRequestResponse) =>
          resolve(data.status !== 204 ? JSON.parse(data.body ?? "{}") : (undefined as unknown as T)),
      },
      {
        bucketId: options?.bucketId,
        body: body as Record<string, unknown> | undefined,
        retryCount: options?.retryCount ?? 0,
        headers: options?.headers,
      },
    );
  });
}