I'm building an application that allows anyone to deploy PSP34 using Openbrush contract.
I want to allow users to deploy a new contract from the UI and upload an image to mint the NFT.
I have successfully called the function to mint from the UI, but I am stumped by the code for each user to deploy the contract from the UI.
Specifically, I want users to be able to call new to create a new contract from the UI. (total supply at this point is 0)
I guess I would use CodePromise, but I am having trouble understanding what the argument wasm is. Can someone please tell me what it is? https://polkadot.js.org/docs/api-contract/start/code
#![cfg_attr(not(feature = "std"), no_std)]
#![feature(min_specialization)]
use ink_lang as ink;
#[openbrush::contract]
mod psp34_contract {
use openbrush::contracts::psp34::extensions::metadata::*;
use openbrush::contracts::psp34::extensions::burnable::*;
use openbrush::contracts::psp34::extensions::enumerable::*;
use openbrush::contracts::psp34::*;
use ink_prelude::string::String;
use ink_prelude::vec::Vec;
use ink_storage::Mapping;
use ink_storage::traits::SpreadAllocate;
/// Defines the storage of your contract.
/// Add new fields to the below struct in order
/// to add new static storage fields to your contract.
#[ink(storage)]
#[derive(Default, SpreadAllocate, PSP34Storage, PSP34MetadataStorage)]
pub struct Psp34Contract {
#[PSP34StorageField]
psp34: PSP34Data<EnumerableBalances>,
last_token_id: u8,
cid_list: Mapping<String, Vec<String>>,
#[PSP34MetadataStorageField]
metadata: PSP34MetadataData,
}
impl PSP34 for Psp34Contract {}
impl PSP34Metadata for Psp34Contract {}
// Optionally you can add more default implementations
impl PSP34Internal for Psp34Contract {}
impl PSP34MetadataInternal for Psp34Contract {}
impl PSP34Burnable for Psp34Contract {}
impl PSP34Enumerable for Psp34Contract {}
impl Psp34Contract {
#[ink(constructor)]
pub fn new(id: Id, name: String, symbol: String) -> Self {
ink_lang::codegen::initialize_contract(|instance: &mut Self| {
instance._set_attribute(id.clone(), String::from("name").into_bytes(), name.into_bytes());
instance._set_attribute(id, String::from("symbol").into_bytes(), symbol.into_bytes());
})
}
#[ink(message)]
pub fn mint_token(&mut self) -> Result<(), PSP34Error> {
self._mint_to(Self::env().caller(), Id::U8(self.last_token_id))?;
self.last_token_id += 1;
Ok(())
}
#[ink(message)]
pub fn mint_with_attribute(&mut self, title: String, author: String, date: String, cid: String) -> Result<(), PSP34Error> {
self._mint_to(Self::env().caller(), Id::U8(self.last_token_id))?;
self.last_token_id += 1;
let mut attributes = Vec::new();
attributes.push(title);
attributes.push(author);
attributes.push(date);
self.cid_list.insert(cid, &attributes);
Ok(())
}
}
}
