title Import new dataset

actor User as U
participant Frontend as F
participant Backend as B
participant Database as D

U->F: enter context
F->U: OK
U->F: import new dataset
F->U: OK, how?
U->F: HTTP endpoint
F->B: import via HTTP endpoint
B->B: fetch
opt
B->B: atomize
end
B->D: persist
D->B: OK
B->F: summary
F->U: show summary