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D VelD Vel 

Use of Swagger with Salesforce

Hello Experts,

I am new to Salesforce and learning how to Integrate Salesforce with any external application. I have read many articles as how to expose the Apex Class as Rest API / call the external System Rest API using apex class. But I am not able understand the use of Swagger with Salesforce how can it benefit with Rest API integration.

Can also share if there are any sample to get us started 

Please help me with this