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Merged
obrok merged 3 commits into from
Aug 15, 2022
Merged

A0-1259: Add metadata to PSP22 contracts #585

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58e51ca
Add metadata to PSP22 contracts
obrok Aug 11, 2022
7cbbb87
Fix shellcheck warnings in deploy.sh
obrok Aug 15, 2022
7487be6
Remove const
obrok Aug 15, 2022
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Add metadata to PSP22 contracts
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@obrok
obrok committed Aug 11, 2022
commit 58e51ca04660c503c3594d2f819da9a4fd5b910b
24 changes: 19 additions & 5 deletions contracts/game_token/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,24 +11,32 @@ pub mod game_token {
codegen::{EmitEvent, Env},
reflect::ContractEventBase,
};
use ink_prelude::format;
use ink_prelude::{format, string::String};
use ink_storage::traits::SpreadAllocate;
use openbrush::{contracts::psp22::*, traits::Storage};
use openbrush::{
contracts::psp22::{extensions::metadata::*, Internal},
traits::Storage,
};

pub const BALANCE_OF_SELECTOR: [u8; 4] = [0x65, 0x68, 0x38, 0x2f];
pub const TRANSFER_SELECTOR: [u8; 4] = [0xdb, 0x20, 0xf9, 0xf5];
pub const TOKEN_DECIMALS: u8 = 18;
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@fbielejec fbielejec Aug 12, 2022

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this does not need to be a const, just hardcode in constructor


#[ink(storage)]
#[derive(Default, SpreadAllocate, Storage)]
pub struct GameToken {
#[storage_field]
psp22: psp22::Data,
#[storage_field]
metadata: metadata::Data,
/// access control contract
access_control: AccountId,
}

impl PSP22 for GameToken {}

impl PSP22Metadata for GameToken {}

// emit events
// https://github.com/w3f/PSPs/blob/master/PSPs/psp-22.md
impl Internal for GameToken {
Expand Down Expand Up @@ -93,11 +101,14 @@ pub mod game_token {
}

impl GameToken {
/// Creates a new contract with the specified initial supply.
/// Creates a new game token with the specified initial supply.
///
/// The token will have its name and symbol set in metadata to the specified values.
/// Decimals are fixed at 18.
///
/// Will revert if called from an account without a proper role
/// Will revert if called from an account without a proper role
#[ink(constructor)]
pub fn new(total_supply: Balance) -> Self {
pub fn new(name: String, symbol: String, total_supply: Balance) -> Self {
let caller = Self::env().caller();
let code_hash = Self::env()
.own_code_hash()
Expand All @@ -116,6 +127,9 @@ pub mod game_token {

match role_check {
Ok(_) => ink_lang::codegen::initialize_contract(|instance: &mut GameToken| {
instance.metadata.name = Some(name);
instance.metadata.symbol = Some(symbol);
instance.metadata.decimals = TOKEN_DECIMALS;
instance
._mint(instance.env().caller(), total_supply)
.expect("Should mint");
Expand Down
10 changes: 6 additions & 4 deletions contracts/scripts/deploy.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -8,13 +8,15 @@ function instrument_game_token {

local __resultvar=$1
local contract_name=$2
local salt=$3
local token_name=\"$3\"
local token_symbol=\"$4\"
local salt=$5

# --- CREATE AN INSTANCE OF THE TOKEN CONTRACT

cd "$CONTRACTS_PATH"/$contract_name

local contract_address=$(cargo contract instantiate --url $NODE --constructor new --args $TOTAL_BALANCE --suri "$AUTHORITY_SEED" --salt $salt)
local contract_address=$(cargo contract instantiate --url $NODE --constructor new --args $token_name $token_symbol $TOTAL_BALANCE --suri "$AUTHORITY_SEED" --salt $salt)
local contract_address=$(echo "$contract_address" | grep Contract | tail -1 | cut -c 15-)

echo $contract_name "token contract instance address: " $contract_address
Expand Down Expand Up @@ -157,7 +159,7 @@ cargo contract call --url $NODE --contract $ACCESS_CONTROL --message grant_role

start=`date +%s.%N`

instrument_game_token EARLY_BIRD_SPECIAL_TOKEN game_token 0x4561726C79426972645370656369616C
instrument_game_token EARLY_BIRD_SPECIAL_TOKEN game_token Ubik UBI 0x4561726C79426972645370656369616C

# --- UPLOAD CODE AND CREATE AN INSTANCE OF THE EARLY_BIRD_SPECIAL GAME CONTRACT

Expand All @@ -169,7 +171,7 @@ deploy_and_instrument_game EARLY_BIRD_SPECIAL early_bird_special $EARLY_BIRD_SPE

# --- CREATE AN INSTANCE OF THE TOKEN CONTRACT FOR THE BACK_TO_THE_FUTURE GAME

instrument_game_token BACK_TO_THE_FUTURE_TOKEN game_token 0x4261636B546F546865467574757265
instrument_game_token BACK_TO_THE_FUTURE_TOKEN game_token Cyberiad CYB 0x4261636B546F546865467574757265

# --- UPLOAD CODE AND CREATE AN INSTANCE OF THE EARLY_BIRD_SPECIAL GAME CONTRACT

Expand Down