sequence-diagram.uml

title IPFS-Proxy

participant Client
participant IPFS-Proxy
database sqlite
database IPFS
participant Deno-land

alt known in IPFS
Client->IPFS-Proxy:requests package
activate IPFS-Proxy
IPFS-Proxy->IPFS-Proxy:lookup CID
activate IPFS-Proxy
IPFS-Proxy->sqlite:lookup CID
IPFS-Proxy<--sqlite:CID
deactivate IPFS-Proxy
deactivate sqlite
IPFS-Proxy->IPFS-Proxy:get from IPFS
activate IPFS-Proxy
IPFS-Proxy->IPFS:lookup package
IPFS-Proxy<--IPFS:package
deactivate IPFS-Proxy
Client<--IPFS-Proxy:package
deactivate IPFS-Proxy
end

alt unknown in IPFS
Client->IPFS-Proxy:requests package
activate IPFS-Proxy
IPFS-Proxy->IPFS-Proxy:lookup CID
activate IPFS-Proxy
IPFS-Proxy->sqlite:lookup CID
IPFS-Proxy<--sqlite:no CID
deactivate IPFS-Proxy

IPFS-Proxy->IPFS-Proxy:request package Deno-land
activate IPFS-Proxy
deactivate IPFS-Proxy
deactivate sqlite

activate IPFS-Proxy
IPFS-Proxy->Deno-land: request package

IPFS-Proxy<--Deno-land:package
deactivate IPFS-Proxy

IPFS-Proxy->IPFS-Proxy:add to IPFS

activate IPFS-Proxy
IPFS-Proxy->IPFS:add package
IPFS-Proxy<--IPFS:CID
IPFS-Proxy->sqlite:store CID
deactivate IPFS-Proxy
Client<--IPFS-Proxy:package
deactivate IPFS-Proxy

end