I want to download contacts, accounts, Orders data from web services. This happens when user successfully logged in.
- Each service may need to be called multiple times based on pagination.
- During download, I want to show download status like how many records are downloaded for contacts and accounts.
I have used promises but the service calls are happening in parallel, but i prefer service calls happens in sequential. Same with Observable approach.
Can you please suggest what is the best way in this scenario? I am using ionic2.