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Purpose

This project is primarily set up to show you how to access API's without CORS using the Ionic proxy server.

There are two parts to this project:

  • The Api Server hosted at http://localhost:3000 - node server.js
  • The Ionic web server hosted at http://localhost:8100 - ionic serve

We want to make requests to the Api server at localhost:3000 from the Ionic server at localhost:8100 via an AJAX request. This will require CORS and fail due to the Api server not allowing the origin localhost:8100 if we use ionic serve or ionic run -l:

XMLHttpRequest cannot load http://localhost:3000/api/endpoint. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8100' is therefore not allowed access.

Points of reference

See ionic.project for configuring the proxy server. Notice how we set the path to /api - signifying any request to the Ionic server http://localhost:8100/api will retrieve requests to the proxyUrl at http://localhost:3000/api/endpoint.

See www/js/app.js for setting up the Api Endpoint as an AngularJS constant. Notice here the address is pointed at the Ionic server.

See www/js/services.js for using the AngularJS constant.

See www/js/controllers.js for using the AngularJS service.

See gulpfile.js to see how the gulp tasks are set up to replace your URL's in your files.

Getting started

Run the following commands, the last two may require another console/terminal window:

npm install npm nodeserver npm ionicserver

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A quick Ionic project showing how to use the proxy server

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