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Consultation and/or building an API around a Delphi .exe App

We have a windows .exe app that we want to create a windows service and run on Azure as an API. It is written in Delphi. I am looking for practical advice from someone that knows the ins and outs of building a robust API. We have a developer that will make modifications to the executable app. Currently the app processes .CSV batch files with 1000's of columns. This will change for the API as it will process 1 record at a time. We want to host the API on Azure and need advice on the best way to do it. Initially, we can spin up a server as needed, but eventually, it will need to be high-availability. There is no need for any coding of the core application. This is more of a developing a wrapper and picking an implementation method. If you have experience using Delphi that is a plus. You must have a clear vision of implementing the API on Azure and need someone with experience doing it. We know that we want a RestFul API and the response will be JSON. Be prepared to discuss the pitfalls of API versioning, authentication and ideas of saving/storing/editing API keys. In addition, we want to be able to measure transactions for customer billing. Due to the nature of this project, it will go in stages. Please discuss your specific experience and how this project is a fit for your skillset. To show you have read this, add your favorite animal in all caps as the first word in your bid. Initial testing will be done on a local apache web server.

Skills: Delphi, Software Architecture, Azure

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About the Employer:
( 157 reviews ) Oconomowoc, United States

Project ID: #20907764

7 freelancers are bidding on average $595 for this job

dreamci

Good day Full Stack Expert development team is ready to serve you. We are working on hourly rate 50usd / hour. Please check my profile and message me for more details. Thanks!

$500 USD in 5 days
(76 Reviews)
8.2
fattahaabdul

I am expert in Delphi. I will create a windows service and run on Azure as an API. Let us discuss and move ahead. I am ready to start. Please reply so that we can move ahead.

$750 USD in 15 days
(62 Reviews)
7.5
FreeLivingSpirit

GERMAN SHEPHERD Hi, Bidding here on behalf of my company astrasys.in. We are a mix team with members from different areas of software development. In our desktop application team, we have 2 developers available who a More

$560 USD in 7 days
(1 Review)
1.6
cryptxelgame4

Hi, My name is Cristhian an experienced developer, I read all your description and I am so interested in, I would appreciate a lot if we discuss details in [login to view URL] regards

$500 USD in 4 days
(0 Reviews)
0.0
hiramang

Hi I am Chetan From India I, can help you make your Project as fast as possible with high quality. hope we will work together . Highlights of my background inc More

$755 USD in 5 days
(0 Reviews)
0.0
BrancoSoft

Hi There, I am writing in response to your post for "Consultation and/or building an API around a Delphi .exe App."After carefully reviewing the description I feel that I am a suitable match for the job. I lead a Tea More

$500 USD in 35 days
(0 Reviews)
0.0
nubelo_yXG3nLDY

The first time I read your requirements I thought you need an API hosted in Azure and your exe program in Delphi would take the role of client and send request to that API. Then I realized that your exe program will be More

$600 USD in 7 days
(0 Reviews)
0.0