ic_mple_client 0.11.2

Simple client abstraction to interact with the Internet Computer canisters
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

use candid::utils::ArgumentEncoder;
use candid::{CandidType, Principal};
use serde::de::DeserializeOwned;

use crate::client::CanisterClient;
use crate::{CanisterClientError, CanisterClientResult};

/// This client is used to interact with the IC canister.
#[derive(Debug, Clone)]
pub struct IcCanisterClient {
    /// The canister id of the Evm canister
    pub canister_id: Principal,
}

impl IcCanisterClient {
    pub fn new(canister: Principal) -> Self {
        Self {
            canister_id: canister,
        }
    }

    async fn call<T, R>(&self, method: &str, args: T) -> CanisterClientResult<R>
    where
        T: ArgumentEncoder + Send,
        R: DeserializeOwned + CandidType,
    {
        let call_result = ic_cdk::call::Call::unbounded_wait(self.canister_id, method)
            .with_args(&args)
            .await
            .map_err(|e| CanisterClientError::CanisterError(e.into()))?
            .into_bytes();

        use candid::Decode;
        Decode!(&call_result, R).map_err(CanisterClientError::CandidError)
    }
}

impl CanisterClient for IcCanisterClient {
    async fn update<T, R>(&self, method: &str, args: T) -> CanisterClientResult<R>
    where
        T: ArgumentEncoder + Send + Sync,
        R: DeserializeOwned + CandidType + Send,
    {
        self.call(method, args).await
    }

    async fn query<T, R>(&self, method: &str, args: T) -> CanisterClientResult<R>
    where
        T: ArgumentEncoder + Send + Sync,
        R: DeserializeOwned + CandidType + Send,
    {
        self.call(method, args).await
    }
}