express-image-validator/dist/middlewares/isImage.js

Validator of various image parameters in Express.js applications

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isImage = isImage;
const runValidators_1 = require("../core/runValidators");
const validators_1 = require("../validators");
/**
 * Express middleware to check if uploaded files are images.
 *
 * Supports optional `required` and `limit` settings.
 * @param { FieldNameSet } field Field name or array of field names to validate.
 * @param { IsImageOptions } [options] Validation options.
 * @returns { RequestHandler } Express middleware function.
 */
function isImage(field, options) {
    const fields = Array.isArray(field) ? field : [field];
    return async (req, res, next) => {
        for (let i = 0; i < fields.length; i++) {
            await (0, runValidators_1.runValidators)(req, fields[i], options, {
                fieldLevel: [validators_1.validateRequired, validators_1.validateLimit],
                fileLevel: [validators_1.validateMimeType],
            });
        }
        return next();
    };
}