Error while initializing storage in contract deployment

Question

I am using folowing command:

./tezos-client originate contract TestContract for tz1address transferring 1 from tz1address running contes.fi --init 'pair (map "KT1address" 1) (map "KT1address" "2019-06-09 00:00:00")'

and get error:

Ill typed data: 1: (pair (map "KT1address" 1) 2: (map "KT1address" "2019-06-09 00:00:00")) is not an expression of type pair (map address mutez) (map address timestamp) From line 1 character 0 to line 2 character 71, value (pair (map "KT1address" 1) (map "KT1address" "2019-06-09 00:00:00")) is invalid for type pair (map address mutez) (map address timestamp). From line 1 character 0 to line 2 character 71, unexpected type name pair, only a constant constructor can be used here.

Please explain to me what i am doing wrong.

Answer 1

Your error message describes the type you are failing to initialize properly: "is not an expression of type pair (map address mutez) (map address timestamp)".

First you need to specify each map with braces { }, and every element inside the braces begins with an Elt and is separated from other elements by a semi-colon. In your case you only have one element per map so you don't need any semi-colon.

You would use the following,

--init 'Pair { Elt "KT1address" 1 } { Elt "KT1address" "2019-06-09 00:00:00" }'

if you were initializing each map with 2 elements, it would look like,

--init 'Pair { Elt "KT1addressone" 1 ;  Elt "KT1addresstwo" 1} { Elt "KT1addressone" "2019-06-09 00:00:00" ; Elt "KT1addresstwo" "2019-06-09 00:00:00" }'