Minting NFTs

Minting NFTs belong to HashGuild Application, powered by the minting application. The repository is opensource and be found here - contribution is happily seen. Endpoints developed in the course of the minting application can be used for automated minting of NFTs by posting to the API and retrieving signed data back. Take into account here, that the smart contract developed by the HashGuild Team is used here.

The Minting Endpoints require a change of the Base URI - from https://hashguild.xyz to https://mint.hashguild.xyz.

Have a look at the Open Sourced Project

The Mint model

There are two mint models - one for uploading/pinning data to IPFS and one for sending the metadata to the smart contract for minting.

Required Properties for pinning Data to IPFS

Name
name
Type
string
Description
The Name of the token.
Name
creator
Type
string
Description
The ame of the creator.
Name
description
Type
string
Description
The description for the NFT.
Name
thumbnailFile
Type
Blob
Description
The thumbnailFile for the NFT.

Required Properties for calling the smart contract

Name
tokenName
Type
string
Description
The Name of the token.
Name
tokenSymbol
Type
string
Description
The tokenSymbol of the token.
Name
maxSupply
Type
int
Description
The max supply of the token
Name
metadataUInt8Array
Type
Buffer[]
Description
The buffer from the IPFS link returned after pinning.
Name
royalties
Type
Object[]
Description
The royalties for the NFT, consisting of Key-Value pairs.

POST/api/uploadMetadataToIPFS

Upload/ Pin the Metadata to IPFS

This endpoint allows you to pin files directly to IPFS.

Optional attributes

Name
attributes
Type
nftAttributes[]
Description
Add attributes to the NFT in key-value pairs.
Name
files
Type
File[]
Description
Add more files than the thumbnail to the NFT.

Request

POST

/api/uploadMetadataToIPFS

curl -G https://mint.hashguild.xyz/api/uploadMetadataToIPFS \
  -H "Authorization: Bearer {token}"
  -H "Content-Type: multipart/form-data"
  -d "{
    "name": "<name>",
    "creator": "<creator>",
    "description": "<description>", 
    "thumbnailFile": "<thumbnailFile>"
}"

Response

{
    "success": true,
    "url": "ipfs://bafkreifek53mxm3ne5z4wdtcmzvddqpn2bzdgtonoazf6hzycyaeen"
}

GET/api/mintWithSmartContractHashPack

Mint NFTs via Smart Contract

This endpoint allows you retrieve the Hashpack mint transaction string to direct to the Hashpack extension.

Request

GET

/api/mintWithSmartContractHashPack

 curl -X https://mint.hashguild.xyz/api/mintWithSmartContractHashPack \
  -H "Authorization: Bearer {token}" 
   -d "{
        "tokenName": "<tokenName>",
        "tokenSymbol": "<tokenSymbol>",
        "maxSupply": <maxSupply>, 
        "metadataUInt8Array": <metadataUInt8Array>, 
        "royalties": <royalties>, 
   }"

Response

{
    "byteArray": "CrkCKrYCCssBChsKDAitq9adBhC244DZARIJCAAQABiUmrAQGAASBggAEAAYAxiAwtcvIgIIeDJCUHVyY2hhc2luZyBORlQgd2l0aCAwLjAuNDkxMzk0OTggYW5kIFNlcmlhbCBOdW1iZXIgMSBmb3IgMjIyIEhCQVIuclcKLAoUCgkIABAAGKHnnBAQgPjIs6UBGAAKFAoJCAAQABiUmrAQEP/3yLOlARgAEicKCQgAEAAYqp63FxoaCgkIABAAGKHnnBASCQgAEAAYlJqwEBgBIAASZgpkCiBU2pWm+80uY3j0QRo5jGHMi0dC0CAdWflAzJ1kLKmbLhpAWN1ZRc6MRHhTwgCtA1VgIbZRAifO72cjuYgKDirVplUgeXwjVwF8OIJ0oPVdOuCxYkiQ0oYbzy0VKd6WiKVIDQ==",
    "metadata": {
        "accountToSign": "0.0.34344212",
        "returnTransaction": false
    }
}