@mark01/express-utils/lib/util/promise-controller.js

npm package that contains utilities for express.js

import { AppError } from '../error';
export const promiseController = (schemas, cb, successStatusCode = 200) => async (req, res, next) => {
    const requestErrors = [];
    const requestData = {
        params: {},
        body: {},
        query: {},
    };
    if (schemas.params) {
        const parsedParams = schemas.params.safeParse(req.params);
        if (parsedParams.success) {
            requestData.params = parsedParams.data;
        }
        else {
            requestErrors.push({ type: 'Params', errors: parsedParams.error });
        }
    }
    if (schemas.body) {
        const parsedBody = schemas.body.safeParse(req.body);
        if (parsedBody.success) {
            requestData.body = parsedBody.data;
        }
        else {
            requestErrors.push({ type: 'Body', errors: parsedBody.error });
        }
    }
    if (schemas.query) {
        const parsedQuery = schemas.query.safeParse(req.query);
        if (parsedQuery.success) {
            requestData.query = parsedQuery.data;
        }
        else {
            requestErrors.push({ type: 'Query', errors: parsedQuery.error });
        }
    }
    if (requestErrors.length > 0) {
        return next(new AppError('Bad request', 400, requestErrors));
    }
    try {
        const result = await cb(requestData, req, res);
        if (schemas.response) {
            const parsedResponse = schemas.response.safeParse(result);
            if (!parsedResponse.success) {
                return next(new AppError('Bad response', 500, parsedResponse.error));
            }
        }
        res.status(successStatusCode).json(result);
    }
    catch (error) {
        next(new AppError('Unknown error! Please try again later!', 500, error));
    }
};