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Creating an NFT token with ERC-1155 standard

Creating an NFT token with ERC-1155 standard

Asked On2022-01-23 12:49:32 by:Suresha-N

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The multi token support option offered by ERC-1155 is one of its prime features. Imagine a scenario where every single airline possesses a unique token. If you’re looking to book a flight with three different connecting flights from various airlines, you would need to pay for each airline ticket individually. There could be many problems associated with this. In order to overcome these issues, you can create a single multi-token contract which holds the individual tokens for every airline? That’s exactly what ERC-1155 allows you to do. Instead of just one token class, you can add as many as we want. Let us take a look at how to implement the ERC-1155 token with Openzeppelin contracts for this example. Install them with npm or directly in Remix by importing the GitHub URL.

  1. import "@openzeppelin/contracts/token/ERC1155/ERC1155.sol";
  2. contract AirlineTokens is ERC1155 {
  3. address public governance;
  4. uint256 public airlineCount;
  5. modifier onlyGovernance() {
  6. require(msg.sender == governance, "only governance can call this");
  7. _;
  8. }
  9. constructor(address governance_) public ERC1155("") {
  10. governance = governance_;
  11. airlineCount = 0;
  12. }
  13. function addNewAirline(uint256 initialSupply) external onlyGovernance {
  14. airlineCount++;
  15. uint256 airlineTokenClassId = airlineCount;
  16. _mint(msg.sender, airlineTokenClassId, initialSupply, "");
  17. }
  18. }

Now all you need to do is call AirlineTokens.safeBatchTransferFrom(myBuyerAddress, sellerAddress, [airlineId1, airlineId2, airlineId3], [firstFlightPrice, secondFlightPrice, thirdFlightPrice], ‘”). After this, you can pay in each airline currency in a single transaction.

Answerd on:2022-01-23 Answerd By:Suresha-N

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