import * as Koa from 'koa'; import { IEndpoint } from './endpoints'; import authenticate, { AuthenticationError } from './authenticate'; import call from './call'; import { ApiError } from './error'; export default (endpoint: IEndpoint, ctx: Koa.Context) => new Promise((res) => { const body = ctx.request.body; const reply = (x?: any, y?: ApiError) => { if (x == null) { ctx.status = 204; } else if (typeof x === 'number' && y) { ctx.status = x; ctx.body = { error: { message: y!.message, code: y!.code, id: y!.id, kind: y!.kind, ...(y!.info ? { info: y!.info } : {}) } }; } else { // 文字列を返す場合は、JSON.stringify通さないとJSONと認識されない ctx.body = typeof x === 'string' ? JSON.stringify(x) : x; } res(); }; // Authentication authenticate(body['i']).then(([user, app]) => { // API invoking call(endpoint.name, user, app, body, (ctx as any).file).then((res: any) => { reply(res); }).catch((e: ApiError) => { reply(e.httpStatusCode ? e.httpStatusCode : e.kind === 'client' ? 400 : 500, e); }); }).catch(e => { if (e instanceof AuthenticationError) { reply(403, new ApiError({ message: 'Authentication failed. Please ensure your token is correct.', code: 'AUTHENTICATION_FAILED', id: 'b0a7f5f8-dc2f-4171-b91f-de88ad238e14' })); } else { reply(500, new ApiError()); } }); });