How to take array of strings as a input in move function?

[vivekratr]

Discord user ID

No response

Describe your question in detail.

How to take array of strings as a input in move function?

here is the code: https://github.com/vivekratr/socialMove1

What error, if any, are you getting?

No response

What have you tried or looked at? Or how can we reproduce the error?

I have tried vector<vector> but not taking plain string as input

Which operating system are you using?

Linux (Ubuntu, Fedora, Windows WSL, etc.)

Which SDK or tool are you using? (if any)

Aptos CLI

Describe your environment or tooling in detail

No response

[kshitijc1506]

Here's an example of a function taking in a vector (array) of strings and modifying each one to "hello".

public fun take_string_arr(strings: &mut vector<String>) {
    let length = vector::length(strings);
    let i = 0;
    while (i < length) {
        let hello_str = string::utf8(b"hello");
        let element = vector::borrow_mut(strings, i);
        *element = hello_str; 
        i = i + 1;
    };
}

[0xbe1]

i think the author is asking about how to pass in string array in Aptos CLI?

[0xjunha]

I'm not sure if you're asking about passing multiple string arguments or vector<String> type, so here're scenarios for both cases.

example module

module test::test {
    use std::string::String;
    use std::vector;
    struct Note has key {
        title: String,
        content: String,
    }

    public entry fun write_note(author: &signer, title: String, content: String) {
        let note = Note{ title, content };
        move_to(author, note);
    }

    public entry fun write_note_in_array(author: &signer, note: vector<String>) {
        let content = vector::pop_back(&mut note);
        let title = vector::pop_back(&mut note);
        let note = Note{ title, content };
        move_to(author, note);
    }
}

1. multiple String args

run

aptos move run \
	--function-id $MODULE_ADDRESS::test::write_note \
	--args \
		"string:Some Title" \
		"string:Some Content" \
	--profile some_profile	

2. vector<String> arg

run

aptos move run \
	--function-id $MODULE_ADDRESS::test::write_note_in_array \
	--args \
		'string:["Some Title", "Some Content"]'
	--profile some_profile