|
| 1 | +use candid::{ |
| 2 | + utils::{encode_args, ArgumentEncoder}, |
| 3 | + CandidType, Decode, Principal, |
| 4 | +}; |
| 5 | +use ic_agent::{Agent, Identity}; |
| 6 | + |
| 7 | +use super::format_error; |
| 8 | + |
| 9 | +pub async fn build_agent(host: &str, identity: Box<dyn Identity>) -> Result<Agent, String> { |
| 10 | + let agent = Agent::builder() |
| 11 | + .with_url(host) |
| 12 | + .with_boxed_identity(identity) |
| 13 | + .with_verify_query_signatures(true) |
| 14 | + .build() |
| 15 | + .map_err(format_error)?; |
| 16 | + if host.starts_with("http://") { |
| 17 | + agent.fetch_root_key().await.map_err(format_error)?; |
| 18 | + } |
| 19 | + |
| 20 | + Ok(agent) |
| 21 | +} |
| 22 | + |
| 23 | +pub async fn update_call<In, Out>( |
| 24 | + agent: &Agent, |
| 25 | + canister_id: &Principal, |
| 26 | + method_name: &str, |
| 27 | + args: In, |
| 28 | +) -> Result<Out, String> |
| 29 | +where |
| 30 | + In: ArgumentEncoder + Send, |
| 31 | + Out: CandidType + for<'a> candid::Deserialize<'a>, |
| 32 | +{ |
| 33 | + let input = encode_args(args).map_err(format_error)?; |
| 34 | + let res = agent |
| 35 | + .update(canister_id, method_name) |
| 36 | + .with_arg(input) |
| 37 | + .call_and_wait() |
| 38 | + .await |
| 39 | + .map_err(format_error)?; |
| 40 | + let output = Decode!(res.as_slice(), Out).map_err(format_error)?; |
| 41 | + Ok(output) |
| 42 | +} |
| 43 | + |
| 44 | +pub async fn query_call<In, Out>( |
| 45 | + agent: &Agent, |
| 46 | + canister_id: &Principal, |
| 47 | + method_name: &str, |
| 48 | + args: In, |
| 49 | +) -> Result<Out, String> |
| 50 | +where |
| 51 | + In: ArgumentEncoder + Send, |
| 52 | + Out: CandidType + for<'a> candid::Deserialize<'a>, |
| 53 | +{ |
| 54 | + let input = encode_args(args).map_err(format_error)?; |
| 55 | + let res = agent |
| 56 | + .query(canister_id, method_name) |
| 57 | + .with_arg(input) |
| 58 | + .call() |
| 59 | + .await |
| 60 | + .map_err(format_error)?; |
| 61 | + let output = Decode!(res.as_slice(), Out).map_err(format_error)?; |
| 62 | + Ok(output) |
| 63 | +} |
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