init

src/core/handlers.ts

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+import { Request, Response, NextFunction } from 'express'
+import { z } from 'zod'
+import { DataResultEntity } from 'axp-ts'
+
+import { HttpError } from './errors'
+
+/**
+ * Основной обработчик ошибок.
+ */
+export const resultHandler = (
+	result: any,
+	{ }: Request,
+	res: Response,
+	{ }: NextFunction
+) => {
+	const dR = new DataResultEntity()
+
+	if (result instanceof HttpError) {
+		dR.status = result.status
+		dR.message = result.message
+		dR.errors = result.errors
+	} else if (result instanceof Error) {
+		dR.status = 500
+		dR.message = 'Server Error'
+		dR.errors.push({ code: 'server', text: result.message })
+	} else {
+		dR.status = result.status || 520
+		dR.message = result.message || 'Unknown Error'
+
+		if (result.info) dR.info = result.info
+		if (result.data) dR.data = result.data
+
+		const { errors = [] } = result
+		if (Array.isArray(errors)) {
+			for (const error of errors) {
+				const { code = 'error', text } = error
+				dR.errors.push({ code, text })
+			}
+		}
+	}
+
+	res.status(dR.status).json(dR)
+}
+
+/**
+ * Обработчик 404 ошибки.
+ */
+export const api404Handler = (
+	{ }: Request,
+	{ }: Response,
+	next: NextFunction
+) => {
+	next(
+		new HttpError({
+			statusCode: 404,
+			code: 'not_found',
+			text: 'Resource api not found'
+		})
+	)
+}
+
+/**
+ * Аргументы валидации Zod схем.
+ */
+export type TZodMiddleArgs = {
+	query?: z.ZodSchema
+	params?: z.ZodSchema
+	body?: z.ZodSchema
+}
+
+/**
+ * Валидация zod схем.
+ */
+export const zodMiddle =
+	(schemas: TZodMiddleArgs) =>
+	(req: Request, {}: Response, next: NextFunction) => {
+		try {
+			// req.params._id = ''
+			// req.body.email = 'test'
+			// console.log(req.body)
+
+			if (schemas.query) req.query = schemas.query.parse(req.query)
+			if (schemas.params) req.params = schemas.params.parse(req.params)
+			if (schemas.body) req.body = schemas.body.parse(req.body)
+
+			next()
+		} catch (ex: any) {
+			ex as z.ZodError
+			const httpError = new HttpError({ statusCode: 400 })
+
+			for (const issue of ex.issues) {
+				const code = issue.path.toString().replaceAll(',', '-')
+				httpError.errors.push({ code, text: code + ' - ' + issue.message })
+			}
+
+			next(httpError)
+		}
+	}