Angular 5 Solution: import {HttpClient} from '@angular/common/http'; uploadFileToUrl(files, restObj, uploadUrl): Promise
{ // Note that setting a content-type header // for mutlipart forms breaks some built in // request parsers like multer in express. multipart x-www-form-urlencoded Also, we have specified data option as a JSON object containing data which will be submitted to the server. OpenAPI-Specification One person speaks Igbo as their native tongue. Using a real world example, let's pretend we have three people. This is where ajax comes in. As req.bodys shape is based on user-controlled input, all properties and values in this object are untrusted and should be validated before trusting.For example, req.body.foo.toString() may fail in multiple ways, for example foo may not be there or may not be a string, and toString may not be a function and instead a string or other user-input. boundary This is not related to the API info.version string. Angular 5 Solution: import {HttpClient} from '@angular/common/http'; uploadFileToUrl(files, restObj, uploadUrl): Promise { // Note that setting a content-type header // for mutlipart forms breaks some built in // request parsers like multer in express. Fetch - Web API | MDN JSON data x-www-form-urlencoded where the user enters login information in a form), you will need to work out what the form submit button does, and create an HTTP request with the appropriate method (usually POST) and the appropriate parameters from the form definition. OpenAPI-Specification Render an HTML template with a