SharePoint 2016 on premise - can the server side web service be anything that accepts JSON?

SharePoint 2016 on premise - can the server side web service be anything that accepts JSON?

We are running SharePoint 2016 on premise and will stay on premise for at least the next 2 years. I have been reading that most of the development done with SharePoint 2016 is client side development meaning that the web part executes on the client endpoint, not server side language is needed.

However for some of the custom apps where we need the business logic in c# / WCF or something like that, will it work with anything that accepts and returns JSON?

Microsoft recommends using "Azure Functions" for this, but again we have web services in our environment that can JSON, so we want to leverage the existing infrastructure.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

zephyr_hex (Megan)DeveloperCommented:
SharePoint CSOM is called "client side" because you're not accessing the SharePoint data directly from SQL... BUT, it's not "client side" in the sense of being run in a client side browser.  It's C#, so the code runs server side.

More on CSOM versioning:

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
sqlagent007Author Commented:
Thank you, so I am understanding the the CSOM is what makes the magic of the web part interact with SharePoint, like when a use needs to select "Acme Company" from a list of companies.

What about when the user needs to enter information about "Acme Co" and based on that information the c# code needs to query other system (non SharePoint), then aggregate the data and display it back to the user.

My understanding is that we would create a web part for the user to get a list of companies from SharePoint or any source, but when the heavy lifting like searching our warehouse system and then making decisions based on the results of the warehouse query, maybe even updating records in the warehouse database this is done with a web service and the web part just sends and receives information over JSON.

Here is an example:
* User selects acme company from list in web part
* User needs to update some records for acme company, and maybe some of the logic is already built in another WCF app
* Can the web part just send the data via JSON, let the WCF web service go out and do what it needs to do, then send the results back over JSON for display to the web part?

If yes are there any restrictions on what web services the web part can talk to over JSON?
sqlagent007Author Commented:
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SharePoint

From novice to tech pro — start learning today.