pablo-rest-api-standard/lib/index.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.PRAS = void 0;
class PRAS {
    getPRASResultObject(statusCode = 200, status = "OK", message = "", data = null, code = "UNKNOWN_CODE", extra = null) {
        return {
            statusCode,
            status,
            message,
            data,
            code,
            extra,
        };
    }
    responseMiddleware() {
        // eslint-disable-next-line @typescript-eslint/ban-types
        return (req, res, next) => {
            res.pras = {
                ok: (message, data, code, extra) => {
                    res.json(this.getPRASResultObject(200, "OK", message, data, code, extra));
                },
                created: (message, data, code, extra) => {
                    res.json(this.getPRASResultObject(201, "OK", message, data, code, extra));
                },
                badRequest: (message, data, code, extra) => {
                    res.json(this.getPRASResultObject(400, "FAIL", message, data, code, extra));
                },
                unauthorized: (message, data, code, extra) => {
                    res.json(this.getPRASResultObject(401, "FAIL", message, data, code, extra));
                },
                forbidden: (message, data, code, extra) => {
                    res.json(this.getPRASResultObject(403, "FAIL", message, data, code, extra));
                },
                notFound: (message, data, code, extra) => {
                    res.json(this.getPRASResultObject(404, "FAIL", message, data, code, extra));
                },
                serverError: (message, data, code, extra) => {
                    res.json(this.getPRASResultObject(500, "ERROR", message, data, code, extra));
                },
                customMessage: (statusCode, message, data, code, extra) => {
                    let status;
                    if (statusCode >= 500) {
                        status = "ERROR";
                    }
                    else if (statusCode >= 400) {
                        status = "FAIL";
                    }
                    else {
                        status = "OK";
                    }
                    res.json(this.getPRASResultObject(statusCode, status, message, data, code, extra));
                },
            };
            const rawHeaders = req.rawHeaders;
            let foundHeaderIndex = -1;
            for (let i = 0; i < rawHeaders.length; i++) {
                if (rawHeaders[i] === "Accept") {
                    foundHeaderIndex = i;
                    break;
                }
            }
            if (rawHeaders.hasOwnProperty("Accept") &&
                rawHeaders[foundHeaderIndex].includes("application/json")) {
                const send = res.send;
                res.send = (body) => {
                    try {
                        if (typeof body === "string") {
                            body = JSON.parse(body);
                        }
                        if (typeof body === "string") {
                            body = { data: body };
                        }
                        else if (!body.hasOwnProperty("data")) {
                            body = { data: body };
                        }
                        const prasBody = this.getPRASResultObject(body.statusCode, body.status, body.message, body.data, body.code, body.extra);
                        res.status(prasBody.statusCode || 200);
                        delete prasBody.statusCode;
                        return send.call(res, JSON.stringify(prasBody));
                    }
                    catch (err) {
                        return send.call(res, body);
                    }
                };
            }
            next();
        };
    }
}
exports.PRAS = PRAS;
exports.default = new PRAS();