PlantUML: Add labels to the arrows in component diagram

Using : label, we can add labels to the arrows in component diagram.

Exampe

[User] --> [Amount Deposit] : Deposit Amount

 

addLabelsToArrows.txt

@startuml

[User]

package "ATM Machine" {
	component "Balance Enquiry" as BE
	[Cash Withdrawl] as CE
	component [Amount Deposit]
	[Request Loan]
	[Transfer Amount]
}

package "Bank Server"{
	cloud {
		[Account Manager]
	}
}

package "Loan Server"{
	cloud {
		[Loan management system]
	}
}

[User] --> [BE] : Request Balance
[User] --> [CE] : Request cash withdrawl
[User] --> [Amount Deposit] : Deposit Amount
[User] --> [Request Loan]: request loan
[User] --> [Transfer Amount] : transfer to other account

[BE] --> [Account Manager]
[CE] --> [Account Manager]
[Amount Deposit] --> [Account Manager]
[Transfer Amount] --> [Account Manager]

[Request Loan] --> [Loan management system]

[Loan management system] --> [Account Manager] : Check account details

@enduml

Above snippet generate below diagram.

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