jamesmorgan

contract Structs {

    struct Shipment {
        // Slot 1: 20 bytes packed with bool (1 byte)
        address receiver; 
        bool delivered;
    
        // Slot 2: uint 8 + uint128 = 1 slot
        uint8 typeCode;
        uint128 price; (Max size: 170141183460469231731687303715884105727)

jamesmorgan

contract Sample { 
         uint256 a; // storage position 0 
         uint256[2] b; // storage position 1 & 2
         
         // This is just declaration
         struct TestStruct { 
                  uint256 id; 
                  uint256 value; 
         }
         

jamesmorgan

contract Structs {

    struct Shipment {
        address receiver;
        uint price;
        bool delivered;
        string package;
        uint8 typeCode;
    }

jamesmorgan

pragma solidity ^0.6.0;

interface IERC2981 {

    /// @notice Called with the sale price to determine how much royalty
    //          is owed and to whom.
    /// @param _tokenId - the NFT asset queried for royalty information
    /// @param _salePrice - the sale price of the NFT asset specified by _tokenId
    /// @return receiver - address of who should be sent the royalty payment
    /// @return royaltyAmount - the royalty payment amount for _salePrice

jamesmorgan

Keybase proof

I hereby claim:

• I am jamesmorgan on github.
• I am jimbobbins (https://keybase.io/jimbobbins) on keybase.
• I have a public key ASDJX-FTTS6FHG0_HJcGRAdgzch4rm2N1q_boL8en4HdGQo

To claim this, I am signing this object:

jamesmorgan

did:muport:QmYNX951337ofvFM8k5HSF9vg51H363bRpDtXvqJPSfRU5

jamesmorgan

try {
  await contract.methodCall();
} catch (error) {
  // error.reason now populated with an REVERT reason
  console.log("Failure reason", error.reason);
}

jamesmorgan

{
  live: {
    network_id: 1,
    gas: 6075039,
    gasPrice: 5000000000,
    timeoutBlocks: 200,   // # of blocks before a deployment times out  (minimum/default: 50)
    skipDryRun: true      // Skip dry run before migrations? (default: false for public nets )
  }
}

jamesmorgan

contract
  .purchase(edition.edition, {
    from: account,
    value: priceInWei
  })
  .on('transactionHash', hash => {
    console.log('Purchase transaction submitted', hash);
  })
  .on('receipt', receipt => {
    console.log('Purchase successful - Ive been mined', receipt);

jamesmorgan

{
    "title": "Asset Metadata",
    "type": "object",
    "properties": {
        "name": {
            "type": "string",
            "description": "Identifies the asset to which this NFT represents",
        },
        "description": {
            "type": "string",