I’m trying to pass some arguments when installing / upgrading a canister from dfx and I can’t seem to figure it out. In the rust canister I have this code: #[derive(CandidType, Deserialize, Debug, Default)] struct SendArgs { greet: String, } #[init] fn init() { let call_arg = ic_cdk::api:…

Posting here as well so this gets documented for other people trying the same things: @chenyan figured out that the problem was my did file. It needs to include the params at a service level, so dfx can work. (e.g. service : (text) → { … }) Old did file: service : { add : (text) -> (bool); g…

How about something like this? #[init] fn init(foo: String) { ic_cdk::print(format!("foo: {:?}", foo)); }

#[init] fn init(foo: String) { ic_cdk::print(format!("Init: {:?}", foo)); } + dfx start --clean dfx canister create ic_test dfx canister install --argument '("Test")' ic_test [OR] dfx deploy ic_test --argument '("Test")' Output Error: The Replica returned an error: code 5, message: "Canist…

Maybe @senior.joinu or @nomeata can shed some light on this. [image] How to provide a canister with constructor arguments? Developers In rust we can declare a function with #[init] annotation - this function will be called right after canister’s code installation - so it …

[image] GLdev: dfx deploy ic_test --argument '("Test")' Can you try opt "Test"?

dfx deploy ic_test --argument ‘(opt “Test”)’ with init(foo: String): Error: The Replica returned an error: code 5, message: “Canister rrkah-fqaaa-aaaaa-aaaaq-cai trapped explicitly: Custom(No more values on the wire, the expected type text is not opt, reserved or null)” dfx deploy ic_test --argume…

A-ha! Some progress. Following my hunch that dfx does something weird (rust to rust works, afterall) I tried sending raw arguments, like so: $ didc encode '("Test")' 4449444c0001710454657374 $ dfx deploy ic_test --argument 4449444c0001710454657374 --argument-type raw And now I get [Canister rrkah…

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Right, so now I’m a bit more clear on what happened. I am using the following pattern to output the did file: // Auto export the candid interface candid::export_service!(); #[query(name = "__get_candid_interface_tmp_hack")] #[candid_method(query, rename = "__get_candid_interface_tmp_hack")] fn __e…

Where is ic_test.did relative to the file containing the Rust code that tries to read it? I have lib.rs in the same directory as the .did file but get a "No such file or directory". I tried a few different paths.

How to pass install arguments from dfx?

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paulyoung May 15, 2022, 6:40am 4

Maybe @senior.joinu or @nomeata can shed some light on this.

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How to pass install arguments from dfx?

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