I’m using this configuration in my dfx.json.
"icrc1_ledger_canister": {
"type": "custom",
"candid": "https://raw.githubusercontent.com/dfinity/ic/d87954601e4b22972899e9957e800406a0a6b929/rs/rosetta-api/icrc1/ledger/ledger.did",
"wasm": "https://download.dfinity.systems/ic/d87954601e4b22972899e9957e800406a0a6b929/canisters/ic-icrc1-ledger.wasm.gz",
"remote": {
"id": {
"ic": "ryjl3-tyaaa-aaaaa-aaaba-cai"
}
}
}
However, the issue that I have is that there’s a mismatch between the types in my ICRC1 deployment installation arguments. Note: I’m using PocketIC to test the deployment.
let icrc1_deploy_args = ICRC1Args::Init(ICRC1InitArgs {
token_symbol: "MCK".to_string(),
token_name: "Mock Token".to_string(),
minting_account: Account {
owner: caller,
subaccount: None,
},
transfer_fee: candid::Nat(1_000_000.to_biguint().unwrap()),
metadata: vec![],
initial_balances: vec![
(
Account {
owner: caller,
subaccount: None,
},
candid::Nat(mint_amount.to_biguint().unwrap()),
),
],
archive_options: ArchiveOptions {
num_blocks_to_archive: candid::Nat(10.to_biguint().unwrap()),
trigger_threshold: candid::Nat(5.to_biguint().unwrap()),
controller_id: caller,
max_transactions_per_response: None,
max_message_size_bytes: None,
cycles_for_archive_creation: None,
node_max_memory_size_bytes: None,
},
feature_flags: Some(FeatureFlags { icrc2: false }),
decimals: Some(candid::Nat(3.to_biguint().unwrap())), // Assuming 8 decimals, adjust as needed
maximum_number_of_accounts: None,
accounts_overflow_trim_quantity: None,
fee_collector_account: None,
max_memo_length: None,
});
pic.install_canister(icrc_ledger, icrc_wasm_module, encode_one(icrc1_deploy_args).unwrap(), Some(caller));
The error I am getting is the following:
thread 'tests::intent_tests::should_transfer_icrc1' panicked at /Users/vincxntes/.cargo/registry/src/index.crates.io-6f17d22bba15001f/pocket-ic-5.0.0/src/nonblocking.rs:840:10:
called `Result::unwrap()` on an `Err` value: UserError(UserError { code: CanisterCalledTrap, description: "Error from Canister lqy7q-dh777-77777-aaaaq-cai: Canister called `ic0.trap` with message: failed to decode call arguments: Custom(Fail to decode argument 0 from table0 to variant {\n Upgrade : opt record {\n token_symbol : opt text;\n transfer_fee : opt nat;\n metadata : opt vec record {\n text;\n variant { Int : int; Nat : nat; Blob : vec nat8; Text : text };\n };\n maximum_number_of_accounts : opt nat64;\n accounts_overflow_trim_quantity : opt nat64;\n change_fee_collector : opt variant {\n SetTo : record { owner : principal; subaccount : opt vec nat8 };\n Unset;\n };\n max_memo_length : opt nat16;\n token_name : opt text;\n feature_flags : opt record { icrc2 : bool };\n };\n Init : record {\n decimals : opt nat8;\n token_symbol : text;\n transfer_fee : nat;\n metadata : vec record {\n text;\n variant { Int : int; Nat : nat; Blob : vec nat8; Text : text };\n };\n minting_account : record { owner : principal; subaccount : opt vec nat8 };\n initial_balances : vec record {\n record { owner : principal; subaccount : opt vec nat8 };\n nat;\n };\n maximum_number_of_accounts : opt nat64;\n accounts_overflow_trim_quantity : opt nat64;\n fee_collector_account : opt record {\n owner : principal;\n subaccount : opt vec nat8;\n };\n archive_options : record {\n num_blocks_to_archive : nat64;\n max_transactions_per_response : opt nat64;\n trigger_threshold : nat64;\n max_message_size_bytes : opt nat64;\n cycles_for_archive_creation : opt nat64;\n node_max_memory_size_bytes : opt nat64;\n controller_id : principal;\n };\n max_memo_length : opt nat16;\n token_name : text;\n feature_flags : opt record { icrc2 : bool };\n };\n}\n\nCaused by:\n 0: input: 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_0a0005000000011dcc9ac7f36ced820f399b6e7a16eaac06a04aea82cc55917650270bdc02000a4d6f636b20546f6b656e0100\n table: type table0 = variant { 813_882_492 : table1; 815_032_112 : table16 }\n type table1 = record {\n 881_753_886 : table2;\n 902_112_242 : table3;\n 1_075_439_471 : table4;\n 1_735_349_527 : table3;\n 2_014_659_076 : table3;\n 2_122_741_893 : table9;\n 2_991_647_664 : table13;\n 3_754_599_569 : table2;\n 4_168_372_670 : table14;\n }\n type table10 = variant { 224_199_069 : table11; 974_938_825 }\n type table11 = record { 947_296_307 : principal; 1_349_681_965 : table12 }\n type table12 = opt table8\n type table13 = opt nat16\n type table14 = opt table15\n type table15 = record { 3_067_731_911 : bool }\n type table16 = record {\n 308_955_842 : table3;\n 881_753_886 : text;\n 902_112_242 : nat;\n 1_075_439_471 : table5;\n 1_092_281_774 : table11;\n 1_448_514_098 : table17;\n 1_735_349_527 : table3;\n 2_014_659_076 : table3;\n 2_152_701_186 : table19;\n 2_755_523_233 : table20;\n 2_991_647_664 : table3;\n 3_754_599_569 : text;\n 4_168_372_670 : table14;\n }\n type table17 = vec table18\n type table18 = record { table11; nat }\n type table19 = opt table11\n type table2 = opt text\n type table20 = record {\n 440_423_070 : nat;\n 978_359_218 : table3;\n 1_831_422_628 : nat;\n 2_380_371_424 : table3;\n 3_172_150_372 : table3;\n 3_371_803_667 : table3;\n 3_856_016_094 : principal;\n }\n type table3 = opt nat\n type table4 = opt table5\n type table5 = vec table6\n type table6 = record { text; table7 }\n type table7 = variant {\n 3_654_863 : int;\n 3_900_609 : nat;\n 737_307_005 : table8;\n 936_573_133 : text;\n }\n type table8 = vec nat8\n type table9 = opt table10\n wire_type: nat, expect_type: nat64\n 1: Subtyping error: TypeInner :: Nat64).\nConsider gracefully handling failures from this canister or altering the canister to handle exceptions. See documentation: http://internetcomputer.org/docs/current/references/execution-errors#trapped-explicitly" })
TLDR: The error seems to be caused by a mismatch between the expected and actual data types:
- Wire Type:
nat - Expected Type:
nat64
My current installation struct (coded based on my interpretion of these type mismatch errors)
#[derive(CandidType, Serialize, Deserialize, Clone, Debug)]
pub enum ICRC1Args {
Init(ICRC1InitArgs),
Upgrade(ICRC1UpgradeArgs),
}
#[derive(CandidType, Serialize, Deserialize, Clone, Debug)]
pub struct ICRC1InitArgs {
pub token_symbol: String,
pub token_name: String,
pub minting_account: Account,
pub transfer_fee: Nat,
pub metadata: Vec<(String, MetadataValue)>,
pub initial_balances: Vec<(Account, Nat)>,
pub archive_options: ArchiveOptions,
pub feature_flags: Option<FeatureFlags>,
pub decimals: Option<candid::Nat>,
pub maximum_number_of_accounts: Option<candid::Nat>,
pub accounts_overflow_trim_quantity: Option<candid::Nat>,
pub fee_collector_account: Option<Account>,
pub max_memo_length: Option<candid::Nat>,
}
I need to get the actual struct defined in the coded canister (the one retrieved via the dfx.json) so that I can use that for my installation arguments in my PocketIC tests.