seyfert/packages/discordeno/rest/runMethod.ts

import { RestManager } from "./restManager.ts";
import { API_VERSION, BASE_URL, baseEndpoints } from "../util/constants.ts";
import { RequestMethod, RestRequestRejection, RestRequestResponse } from "./rest.ts";

export async function runMethod<T = any>(
    rest: RestManager,
    method: RequestMethod,
    route: string,
    body?: unknown,
    options?: {
        retryCount?: number;
        bucketId?: string;
        headers?: Record<string, string>;
    },
): Promise<T> {
    rest.debug(
        `[REST - RequestCreate] Method: ${method} | URL: ${route} | 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 (!baseEndpoints.BASE_URL.startsWith(BASE_URL) && route[0] === "/") {
        const result = await fetch(`${baseEndpoints.BASE_URL}${route}`, {
            body: body ? JSON.stringify(body) : undefined,
            headers: {
                Authorization: rest.secretKey,
                "Content-Type": "application/json",
            },
            method,
        }).catch((error) => {
            errorStack.message = (error as Error)?.message;
            console.error(error);
            throw errorStack;
        });

        if (!result.ok) {
            errorStack.message = result.statusText;
            rest.debug(`[ERROR] ${errorStack.message}`);
            // Closes the response to prevent memory leak
            await result.text();
            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: route[0] === "/" ? `${BASE_URL}/v${API_VERSION}${route}` : route,
                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,
            },
        );
    });
}