Send Data to SFDC using salesforce Connected App

 Step 1 Create Connected app

Go to Quick find box and type app click on new connectd app

And  create app 

Then using postman get the access Token and in parameter section enter value of

grant_type= password

client_id= xxxxxxx

client_secret=xxxxx

username=xxxxxx

password=xxxxxx

and enter url = https://login.salesforce.com/services/oauth2/token

And Method should be post: and then send the request and get the response with Access Token 

Copy the Access token and create new request with body and in Autheization tab enter the value

and header tab enter  with value or you can use Auth tab and enter the Token after Bearer with Space

Authorization        Bearer (Access_Token)

Content-Type        application/json

If you want to use different object then change object name at the end in below url

https://infoglenn-dev-ed.my.salesforce.com/services/data/v35.0/sobjects/Account