---
title: "How to Expose Mainframe Programs to WebServices API"
description: "Exposing mainframe applications/modules to front end Java or other web applications is booming today. Switching from one process to another, the first thing what we need to do is: Cost-benefit analysi..."
url: https://srinimf.com/2013/03/13/exposing-mainframe-modules-with-egl-webservices/
date: 2013-03-13
modified: 2026-10-10
author: "Srini"
image: https://i0.wp.com/srinimf.com/wp-content/uploads/2013/03/pexels-photo-114907.jpeg?fit=1880%2C1058&ssl=1
categories: ["Categories"]
tags: ["Mainframe Webservices"]
type: post
lang: en
---

# How to Expose Mainframe Programs to WebServices API

Exposing mainframe applications/modules to front end Java or other web applications is booming today. Switching from one process to another, the first thing what we need to do is:

- Cost-benefit analysis

Many big organizations have a thought in their mind to use mainframe modules with web applications.

## There are multiple reasons switching to Webservices:

- Front end web applications are attractive
- Portable to internet and it can be accessed through worldwide on internet
- Good scalability
- New web applications are good latest features as suitable to ne w generation
- Less expensive compared to mainframe/AS400

There are two ways we can expose mainframe modules to webservices

1. CICS WebServices
2. EGL WebServices

## EGL WebServices – Basic idea behind is:

We extract the code from the existing application and make it a stand-alone component that can then be used by both the existing 3270-based application, as well as the new Web-based application. We can then refactor our ordering system using IBM Asset Transformation Workbench, IBM Rational Developer for System z and IBM Enterprise COBOL.

Click on this [document](ftp://ftp.software.ibm.com/software/rational/web/whitepapers/SWW12599-USEN-00_unleashing_soa_wp_0919.pdf) for more details. I will add more points in my next posts in this space.

Related[VaGen Vs CoolGen 5 Top Differences](https://srinimf.com/2013/03/12/mainframe-vagen-coolgen/)

### Share this:

-
- [Tweet](https://twitter.com/share)
- [![](https://i0.wp.com/assets.pinterest.com/images/pidgets/pinit_fg_en_rect_gray_20.png)](https://www.pinterest.com/pin/create/link/?url=https%3A%2F%2Fsrinimf.com%2F2013%2F03%2F13%2Fexposing-mainframe-modules-with-egl-webservices%2F&media=https%3A%2F%2Fi0.wp.com%2Fsrinimf.com%2Fwp-content%2Fuploads%2F2013%2F03%2Fpexels-photo-114907.jpeg%3Ffit%3D1200%252C675%26ssl%3D1&description=How%20to%20Expose%20Mainframe%20Programs%20to%20WebServices%20API)
-
- [Share on Tumblr](https://www.tumblr.com/share)
- [Share on WhatsApp (Opens in new window) WhatsApp](https://srinimf.com/2013/03/13/exposing-mainframe-modules-with-egl-webservices/?share=jetpack-whatsapp)
- [More](#)
-

- [Print (Opens in new window) Print](https://srinimf.com/2013/03/13/exposing-mainframe-modules-with-egl-webservices/?share=print)
- [Share on Reddit (Opens in new window) Reddit](https://srinimf.com/2013/03/13/exposing-mainframe-modules-with-egl-webservices/?share=reddit)
- [Share on Telegram (Opens in new window) Telegram](https://srinimf.com/2013/03/13/exposing-mainframe-modules-with-egl-webservices/?share=telegram)
- [Email a link to a friend (Opens in new window) Email](mailto:?subject=%5BShared%20Post%5D%20How%20to%20Expose%20Mainframe%20Programs%20to%20WebServices%20API&body=https%3A%2F%2Fsrinimf.com%2F2013%2F03%2F13%2Fexposing-mainframe-modules-with-egl-webservices%2F&share=email)
-

### Like this:

Like Loading…