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ethio: add +read-contract for chain state reading

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Fang 2019-10-31 19:25:57 +01:00 committed by Jared Tobin
parent 82e25e3940
commit e402cbc550
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1 changed files with 13 additions and 0 deletions
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pkg/arvo/lib/ethio.hoon
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@ -102,4 +102,17 @@
=, dejs-soft:format
(ot id+so error+(ot code+no message+so ~) ~)
--
:: +read-contract: calls a read function on a contract, produces result hex
::
++ read-contract
|= [url=@t proto-read-request:rpc:ethereum]
=/ m (async:stdio ,@t)
;< =json bind:m
%^ request-rpc url id
:+ %eth-call
^- call:rpc:ethereum
[~ to ~ ~ ~ `tape`(encode-call:rpc:ethereum function arguments)]
[%label %latest]
?. ?=(%s -.json) (async-fail:stdio %request-rpc-fail >json< ~)
(pure:m p.json)
--