These are chat archives for ethereum/tutorials

29th
Sep 2016
reddysmobile
@reddysmobile
Sep 29 2016 12:49
@reddysmobile
Hi
Could you tell me how can i interact with third party API from ethereum smart contracts..?
JacobEberhardt
@JacobEberhardt
Sep 29 2016 12:50
you cannot do that directly, but have to rely on a third party feeding the information to contracts
A call to external APIs from contract would be non-deterministic and can thus not be allowed.
reddysmobile
@reddysmobile
Sep 29 2016 12:51
can you suggest few third party services to use in my contracts..
@JacobEberhardt
JacobEberhardt
@JacobEberhardt
Sep 29 2016 12:53
http://www.oraclize.it/ seems to be popular. they perform calls from a protected amazon web services environment and sign data there, which is supposed to limit trust as much as possible
reddysmobile
@reddysmobile
Sep 29 2016 12:54
any other apart from this oraclize?
JacobEberhardt
@JacobEberhardt
Sep 29 2016 12:55
You could also feed the data into contracts yourself, by pulling them locally, signing them and feeding them into the blockchain. Thing is - people will not trust that data not have been tampered by you, unless they trust you.
there are multiple oracle services, but I'm no expert regarding the market situation. Maybe someone else can help you there
CooperateCenterCoin
@CooperateCenterCoin
Sep 29 2016 16:33
Hello what do you think about such coin ?
https://cooperate.center/index.php/active-transactions-auctions-and-services/viewbids/93/cooperate-center-coin-token-donation
a lot of law ...
some coding ...
some interesting future for new aproach Token Driven Desing ?