Hi, I was wondering if anyone knew how to use NNS locally to access the IC exchange rate to be used for a project? Thanks.

Anyone know where the off-chain price oracle is hosted? AWS? Server in Dfinity’s basement?

I believe the deterministic xdr_per_ipc is on chain. [image] Principal rwlgt-iiaaa-aaaaa-aaaaa-cai | ic.rocks Details for principal rwlgt-iiaaa-aaaaa-aaaaa-cai on the Internet Computer. Get_value(xdr_per_ipc). this is protobuf; not candid.

Something like (in motoko): type NNSActor = actor { get_icp_to_cycles_conversion_rate : () -> (nat64) }; let nns: NNSActor = actor("qoctq-giaaa-aaaaa-aaaea-cai"); let icpxdr : Nat64 = await nns.get_icp_to_cycles_conversion_rate();

So there’d be two canisters needed, one for NNS and one for the price oracle? qoctq-giaaa-aaaaa-aaaea-cai would be the canister ID for the NNS?

The example I pasted above should do what you want on its own without a second canister

Your question in discussed in this thread (to which I provided an answer): [image] Where is the price oracle? Developers Currently, this is happening every 10 minutes, with the price coming from a single exchange (usually Coinbase, Binance, or Huobi). It would be good to h…

[image] stephenandrews: let nns: NNSActor = actor("qoctq-giaaa-aaaaa-aaaea-cai"); let icpxdr : Nat64 = await nns.get_icp_to_cycles_conversion_rate(); this is in nns-ui canister, But the source code is not opened. dfinity/ic/blob/master/rs/nns/nns-ui/canister/canister.rs#L2 …

Ah, totally missed this. Thanks.

Yeah NNS canister, I pulled the candid from IC.rocks for it

Hey everyone! If you are using the exchange rate in your projects, be aware that the mechanism will change in the upcoming weeks. Specifically, the exchange rate will no longer be maintained in the NNS registry. Instead, the cycles minting canister will store it directly and make it available usin…

Accessing the exchange rate on the IC, Locally

Developers

THLO July 8, 2021, 8:19am 11

Your question in discussed in this thread (to which I provided an answer):

These oracles are run on multiple independent data centers (neither on AWS nor in DFINITY’s basement).

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Accessing the exchange rate on the IC, Locally

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