const DEFAULT_FRONTEND_MODULE = "https://esm.town/v/dglazkov/bbrunfe"; /** * You can supply these options as a second argument to the `proxy` function. * These options are used to configure the frontend. */ export type FrontendOptions = { /** * The frontend module to render. * If undefined, the default frontend will be used. * If false, no frontend will be used. */ frontend?: false | string; /** * The style of the frontend. */ style?: { /** * The background color of the frontend. * If undefined, the default is ""#f0f0f0" */ bg?: string; /** * The font family that will be used for text. * If undefined, the default is "Helvetica Neue, Helvetica, Arial, sans-serif" */ fontFamily?: string; /** * The primary color used by the frontend. * If undefined, the default is "#3498db" */ colorPrimary?: string; /** * The background color of the primary color. * If undefined, the default is "#fff" */ colorPrimaryBg?: string; /** * The error color used by the frontend. * If undefined, the default is "#fff0f0" */ colorError?: string; }; }; const renderFrontend = (board: string, options?: FrontendOptions) => { if (options && options.frontend === false) { return new Response("Method not allowed", { status: 405 }); } const chatAppModule = (options && options.frontend) || DEFAULT_FRONTEND_MODULE; const bg = options?.style?.bg || "#f0f0f0"; const fontFamily = options?.style?.fontFamily || "Helvetica Neue, Helvetica, Arial, sans-serif"; const colorPrimary = options?.style?.colorPrimary || "#3498db"; const colorPrimaryBg = options?.style?.colorPrimaryBg || "#fff"; const colorError = options?.style?.colorError || "#fff0f0"; const page = ` `; return new Response(page, { headers: { "Content-Type": "text/html", }, }); }; const error = (error: string) => { return new Response(`data: ${JSON.stringify(["error", error])}\n\n`, { headers: { "Content-Type": "application/json", }, }); }; const CORS_HEADERS = { "Access-Control-Allow-Origin": "*", "Access-Control-Allow-Methods": "GET,HEAD,PUT,PATCH,POST,DELETE", "Access-Control-Allow-Headers": "Content-Type, Access-Control-Allow-Headers, api-key", "Access-Control-Max-Age": "2592000", // 30 days } as Record; const runBoard = async (req: Request, endpointURL: string) => { const $key = Deno.env.get("BB_COMMUNITY_KEY"); if (!$key) { return error("BB_COMMUNITY_KEY is not set"); } const body = await req.json() as { $key: string }; body.$key = $key; const response = await fetch(endpointURL, { method: "POST", headers: { "Content-Type": "application/json", }, body: JSON.stringify(body), }); return new Response(response.body, { status: response.status, statusText: response.statusText, headers: { ...response.headers, ...CORS_HEADERS, }, }); }; const boardToEndpoint = (board: string) => { return board.replace(/\.json$/, ".api/run"); }; export const proxy = (url: string, options?: FrontendOptions) => { return async function(req: Request): Promise { if (req.method === "OPTIONS") { return new Response("ok", { headers: structuredClone(CORS_HEADERS) }); } if (req.method === "GET") { return renderFrontend(url, options); } if (req.method === "POST") { return runBoard(req, boardToEndpoint(url)); } }; };

bbrunc

Version 3