Someone Explain how to data exchange from one pharmacy to another pharmacy using Restful API
As already indicated on chat.fhir.org, please read https://confluence.hl7.org/display/FHIR/FHIR+Rules+for+Asking+Questions. (One of those rules is “Please don’t ask the same question on multiple forums at once”…)
You’ll need to explain in more detail what sort of data you’re wanting to share and for what purpose. Indicate what country you’re trying to do the sharing in. Show what work you’ve already done in trying to solve your own problem (where you’ve looked, what implementation guides you’ve examined, etc.)