86 lines
2.3 KiB
JavaScript
86 lines
2.3 KiB
JavaScript
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const { Validator, addCustomMessages } = require('node-input-validator');
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// {fieldName:message} eg:{email:"Invalid Email", password:"Password too short"}
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const formatValidationError = (error) => {
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const formatted = Object.entries(error)
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.map(([key, value]) => ({
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field: key,
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message: value.message,
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}))
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.reduce((accumulator, currentValue) => {
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if (!accumulator[currentValue]) {
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accumulator[currentValue.field] = currentValue.message;
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}
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return accumulator;
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}, {});
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return formatted;
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};
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module.exports = {
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/**
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* Input Validator middleware for controller
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* @param {object} validationObject object defining body fields and its validation types eg:{email:required|email}
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* @param {object} _extendMessages object defining message to throw on validation error eg: {"email.required":"Email is required","email.email":"Invalid email"}
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*
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*/
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validateInput: (validationObject = {}, _extendMessages = {}) => async (
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req,
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res,
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next,
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) => {
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const validation = new Validator(req.body, validationObject);
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addCustomMessages(_extendMessages);
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try {
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const isValid = await validation.check();
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if (!isValid) {
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req.validationError = formatValidationError(validation.errors);
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}
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return next();
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} catch (error) {
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req.validationError = error.message;
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return next();
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}
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},
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handleValidationErrorForViews: (
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req,
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res,
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viewModel,
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viewPath = '/',
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fieldsStoreKey,
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defaultValue = {},
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) => {
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const validationError = req.validationError;
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if (validationError) {
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// Remembers fields if validation error occurs
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Object.entries(defaultValue).forEach(([key, value]) => {
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viewModel[fieldsStoreKey][key] = value;
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});
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if (typeof validationError === 'string') {
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viewModel.error = validationError;
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} else {
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viewModel.validationError = req.validationError;
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}
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return res.render(viewPath, viewModel);
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}
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},
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handleValidationErrorForAPI: (req, res, next) => {
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const validationError = req.validationError;
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if (validationError) {
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let error;
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if (typeof validationError === 'string') {
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error = validationError;
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} else {
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error = req.validationError;
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}
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return res.json({ success: false, error });
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}
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next();
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},
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};
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