Hi Everyone.
 
Hope you all are doing good. 
 
I am new to Salesforce Development. I have gathered basics of integration from trailheads, blogs, google, etc.
 
However, I am unsure how an actual integration(REST) of an external app/oracle/SAP etc is done with Salesforce.
 
I know the following:
1) how to create REST class in Salesforce
2) Making connected app in Salesforce
 
Now what happens after that?
How we use credential information on external app?
How external system talks with salesforce(I mean external system also makes REST calls to Salesforce?) for e.g. to execute GET method to fetch a record details whose value is fed in external app by a user, what needs to be done?
 
It would be really helpful if anyone could explain step-by-step process.

Hi Everyone.
 
Hope you all are doing good. 
 
I am new to Salesforce Development. I have gathered basics of integration from trailheads, blogs, google, etc.
 
However, I am unsure how an actual integration(REST) of an external app/oracle/SAP etc is done with Salesforce.
 
I know the following:
1) how to create REST class in Salesforce
2) Making connected app in Salesforce
 
Now what happens after that?
How we use credential information on external app?
How external system talks with salesforce(I mean external system also makes REST calls to Salesforce?) for e.g. to execute GET method to fetch a record details whose value is fed in external app by a user, what needs to be done?
 
It would be really helpful if anyone could explain step-by-step process.

Hello dear community,

My company has decided to build a new website using an outside developer and I was taksed to find a way to connect our current Enterprise org with the website. Basically, we want to use Salesforce as our backend database.
Our users should be able to create a new user on the website, and their credential should be saved into Salesforce org. At the same time, one logged in they should be able to see their personal information as well as info from Related Lists. In addition, they should be able to freely interact with the website that uses API from other companies, and once queried that information should be saved in Salesforce as well. Users do not need access to any other information in Salesforce besides the data that directly relates to them.

I found a few solutions offered on the forum, but not exactly what I was looking for. Can you please share some resources that I can take a look into that can work in this case?

Thank you very much.