Iroha 2

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How to Work with Store Assets ​

While numeric assets represent quantities, store assets represent arbitrary key-value tables.

rust
fn define_store_asset(
    iroha: &Client,
) {
    let hats = "hat#outfit".parse::<AssetDefinitionId>().unwrap();
    let hats_as_a_concept = AssetDefinition::store(hats);
    iroha.submit(Register::asset_definition(hats_as_a_concept)).unwrap();
}
fn define_store_asset(
    iroha: &Client,
) {
    let hats = "hat#outfit".parse::<AssetDefinitionId>().unwrap();
    let hats_as_a_concept = AssetDefinition::store(hats);
    iroha.submit(Register::asset_definition(hats_as_a_concept)).unwrap();
}
rust
fn set_key_value_pair(
    iroha: &Client,
) {
    let hat_of_alice = "hat##alice@outfit".parse::<AssetId>().unwrap();
    let color = "color".parse::<Name>().unwrap();
    iroha.submit(SetKeyValue::asset(
        hat_of_alice,
        color,
        "red".to_owned()
    )).unwrap();
}
fn set_key_value_pair(
    iroha: &Client,
) {
    let hat_of_alice = "hat##alice@outfit".parse::<AssetId>().unwrap();
    let color = "color".parse::<Name>().unwrap();
    iroha.submit(SetKeyValue::asset(
        hat_of_alice,
        color,
        "red".to_owned()
    )).unwrap();
}
rust
fn read_key_value_pair(
    iroha: &Client,
) {
    let hat_of_alice = "hat##alice@outfit".parse::<AssetId>().unwrap();
    let color = "color".parse::<Name>().unwrap();
    // assume the color has been set to "red"
    let red = iroha.request(FindAssetKeyValueByIdAndKey::new(
        hat_of_alice, 
        color
    )).unwrap();
    assert_eq!(red, MetadataValueBox::String("red".to_owned()));
}
fn read_key_value_pair(
    iroha: &Client,
) {
    let hat_of_alice = "hat##alice@outfit".parse::<AssetId>().unwrap();
    let color = "color".parse::<Name>().unwrap();
    // assume the color has been set to "red"
    let red = iroha.request(FindAssetKeyValueByIdAndKey::new(
        hat_of_alice, 
        color
    )).unwrap();
    assert_eq!(red, MetadataValueBox::String("red".to_owned()));
}
rust
fn unset_key_value_pair(
    iroha: &Client,
) {
    let hat_of_alice = "hat##alice@outfit".parse::<AssetId>().unwrap();
    let color = "color".parse::<Name>().unwrap();
    iroha.submit(RemoveKeyValue::asset(hats, color)).unwrap();
}
fn unset_key_value_pair(
    iroha: &Client,
) {
    let hat_of_alice = "hat##alice@outfit".parse::<AssetId>().unwrap();
    let color = "color".parse::<Name>().unwrap();
    iroha.submit(RemoveKeyValue::asset(hats, color)).unwrap();
}