What are the scopes and api to use in dynamics 365

I need to get the following information using dynamics web API  -
Leads:   no. of leads created
Opportunities: no. of opportunities created
Appointments completed:
Cases completed:

Please suggest the web api for dynamcis to use and also the scope to use to fetch the accessToken
Rohit BajajAsked:
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Rikin ShahMicrosoft Dynamics CRM ConsultantCommented:

The first question would be - From where are you trying  to fetch this information? Is it within Dynamics or a separate application?
Rohit BajajAuthor Commented:
Its a separate application. I have used oauth and able to get the accesstoken also.
Rikin ShahMicrosoft Dynamics CRM ConsultantCommented:
Go through the link -  https://community.dynamics.com/crm/f/117/t/193506

Create a separate application and create your client id which will be used to connect your application to Dynamics 365.

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Rikin ShahMicrosoft Dynamics CRM ConsultantCommented:
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