V8 custom formulas

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DreamFactoryTutorialsV8 custom formulas

Make a field automatically be a mathematical result. Return 'total' as JSON key with value 'price' * 'tax_rate'. price and tax_rate are stored in a database, total is not. This is a post process script that alters the response.

var lodash = require('lodash.min.js');
lodash._.each(event.response.content.resource, function (record) {
    if (!record.tax) {
        throw "Tax is required!";
    if (!record.price) {
        throw "Price is required!";
    record.total = (parseFloat(record.tax) * parseFloat(record.price) / 100) + parseFloat(record.price);