5. Mint Assets

Register users

• Before users can mint/collect assets and create projects on Zecrey, they must register as Zecrey users. Please follow this procedure.

Set Categories

• Zecrey NFT Marketplace has set several default categories to divide the collections. When creating a collection, you must select between one of the categories.

Upload Media

• Upload pictures

📚SDK REFERENCE

• UploadMedia

Golang

Example

package main

import (
   "fmt"
   "github.com/Zecrey-Labs/zecrey-marketplace-go-sdk/sdk"
)


func main() {
    filePath := "/Users/alice/Documents/20221112-142909.jpg"
    result, err := sdk.UploadMedia(filePath)
    if err != nil { panic(err) }
    
    data, _ := json.Marshal(result)    
    fmt.Println(string(data))
}

Example result

{
    "public_id":"collection/tsgqu4cgj57wrxncllky", //unique Id of the picture
    "url":"https://res.cloudinary.com/zecrey/image/upload/v1668506730/collection/tsgqu4cgj57wrxncllky.jpg" //link of the picture
}

Javascript

Example

import { SDK } from "@zecrey/zecrey-legend-js-sdk";

const sdk = new SDK();
await sdk.initial();

const url = "/Users/alice/Documents/20221112-142909.jpg";
const blob = await (await fetch(url)).blob();
const media = new File([blob], "media");
const res = await sdk.uploadMedia(media);

console.log(res);

Example result

{
    "public_id":"collection/tsgqu4cgj57wrxncllky", //unique Id of the picture
    "url":"https://res.cloudinary.com/zecrey/image/upload/v1668506730/collection/tsgqu4cgj57wrxncllky.jpg" //link of the picture
}

Create a Collection

• When minting an NFT, it will be identified in a collection to distinguish different styles or topics. Collections will be submitted to the L1 chain by Zecrey. All collections created through Zecrey will be searchable in the NFT Marketplace.

• The transaction of creating a collection will be confirmed by Zecrey. Once Zecrey confirms this collection, it will be submitted to L1.

• Parameters needed for creating a collection:

Parameter	Parameter usage and meaning	Required vs Optional
accountName	The account name used to initialize the client	✅
seed	The user's L2 seed used to initialize the client	✅
ShortName	Used to create and identify a collection; cannot be duplicated with other collections	✅
CategoryId	Used to create a collection	✅
CollectionUrl	The background image displayed for mobile users
ExternalLink	External link to the collection
TwitterLink	Twitter link to the collection
InstagramLink	Instagram link to the collection
TelegramLink	Telegram link to the collection
DiscordLink	Discord link of the collection
LogoImage	The logo image id of the collection
FeaturedImage	The feature image id of the collection
BannerImage	The Banner image id of the collection
Description	The description of the collection, and filling in "-" is recommended if there is no description
CreatorEarningRate	Creator royalities	✅
PaymentAssetIds	Asset types used to settle

📚SDK REFERENCE

• CreateCollection

Golang

Example

• Create a collection with the ShortName "Alice's space"

  1. Initialize the client

  2. Create a collection

package main

import (
   "fmt"
   "github.com/Zecrey-Labs/zecrey-marketplace-go-sdk/sdk"
   "github.com/Zecrey-Labs/zecrey-marketplace-go-sdk/sdk/model"
)


func main() {
    accountName := "Alice"
    seed := "0x6a1a320d14790f2d9aa9a37769f4833d583a3f7f974fd452a3990aeb0e7a6052"
    ShortName := "Alice`s space"
    CategoryId := "1"
    CollectionUrl := "https://res.cloudinary.com/zecrey/image/upload/collection/ahykviwc0suhoyzusb5q.jpg"
    ExternalLink := "https://weibo.com/alice"
    TwitterLink := "https://twitter.com/alice"
    InstagramLink := "https://www.instagram.com/alice/"
    TelegramLink := "https://tgstat.com/channel/@alice"
    DiscordLink := "https://discord.com/api/v10/applications/<aliceid>/commands"
    LogoImage := "collection/lc02mjan85horu8650td" //unique id after uploading images
    FeaturedImage := "collection/ahykviwc0suhoyzusb5q"//unique id after uploading images
    BannerImage := "collection/lo3vtlrcslcr1n7tgiuh"//unique id after uploading images
    Description := "Description information"//description of the collection
    CreatorEarningRate := "0"//reserved field with no substance
    PaymentAssetIds := "[]"
    
   c, err := sdk.NewClient(accountName, seed) 	 
    if err != nil { panic(err) }
    
    result, err := c.CreateCollection(ShortName, CategoryId, CreatorEarningRate,
       model.WithCollectionUrl(CollectionUrl),//variable parameter which is optional
       model.WithExternalLink(ExternalLink),
       model.WithTwitterLink(TwitterLink),
       model.WithInstagramLink(InstagramLink),
       model.WithTelegramLink(TelegramLink),
       model.WithDiscordLink(DiscordLink),
       model.WithLogoImage(LogoImage),
       model.WithFeaturedImage(FeaturedImage),
       model.WithBannerImage(BannerImage),
       model.WithDescription(Description),
       model.WithPaymentAssetIds(PaymentAssetIds))
    if err != nil { panic(err) }
    
    data, err := json.Marshal(result)
    if err != nil { panic(err) }
    fmt.Println(string(data))
 }

Example result

{
    "collection":{
        "id":22,
        "l2_collection_id":1,
        "account_name":"Alice",
        "name":"collection_Shortname 55",
        "short_name":"collection_Shortname 55",//unique short_name for the collection
        "description":"Description information",
        "category_id":1,
        "collection_url":"https://res.cloudinary.com/zecrey/image/upload/collection/ahykviwc0suhoyzusb5q.jpg",
        "external_link":"https://weibo.com/alice",
        "twitter_link":"https://twitter.com/alice",
        "instagram_link":"https://www.instagram.com/alice/",
        "telegram_link":"https://tgstat.com/channel/@alice",
        "discord_link":"https://discord.com/api/v10/applications/<aliceid>/commands",
        "logo_image":"https://res.cloudinary.com/zecrey/image/upload/collection/lc02mjan85horu8650td",
        "logo_thumb":"https://res.cloudinary.com/zecrey/image/upload/collection/dekkg5j1ptccq9ttliui",
        "featured_image":"https://res.cloudinary.com/zecrey/image/upload/collection/ahykviwc0suhoyzusb5q",
        "featured_Thumb":"https://res.cloudinary.com/zecrey/image/upload/collection/ioy2wcqupbgnuqvdtjfx",
        "banner_image":"https://res.cloudinary.com/zecrey/image/upload/collection/ljvwvjho9ucs5gpwmlkf",
        "banner_thumb":"https://res.cloudinary.com/zecrey/image/upload/collection/lo3vtlrcslcr1n7tgiuh",
        "creator_earning_rate":0,//reserved field with no substance
        "status":"PENDING",
        "expired_at":1668083576082,
        "created_at":1667910776,
        "item_count":3,
        "browse_count":0,
        "floor_price":2,
        "one_day_trade_volume":8.7,
        "total_trade_volume":58.7
    }
}

Javasript

Example

• Create a collection with the ShortName "Alice's space"

  1. Initialize the client

  2. Create a collection

With the private key:

import { Client } from "@zecrey/zecrey-legend-js-sdk";

const account_name = "Alice.zec";
const seed = "0x6a1a320d14790f2d9aa9a37769f4833d583a3f7f974fd452a3990aeb0e7a6052";

const client = new Client(account_name, seed);
await client.initialize();

const category_id = 2;
const logo_image = "collection/in9tbyo5gheczolvhezx";
const description = "Description information";
const banner_image = "collection/pj4u3xm2j4jzeqcvogfd";
const shortname = "Alice's space";
const creator_earning_rate = 0.02; // 2%
const featured_image = "";
const collection_url = "";
const external_link = "";
const twitter_link = "";
const instagram_link = "";
const discord_link = "";
const telegram_link = "";

const res = await client.createCollection(category_id, logo_image, description, banner_image, shortname, creator_earning_rate, featured_image, collection_url, external_link, twitter_link, instagram_link, discord_link, telegram_link);

console.log("collection id: ", res);

With the wallet:

import { SDK } from "@zecrey/zecrey-legend-js-sdk";

const sdk = new SDK();
await sdk.initial();

const account_name = "Alice.zec"; // sender's account name
const account_index = 14; // sender's account index
const category_id = 2;
const logo_image = "collection/in9tbyo5gheczolvhezx";
const description = "Description information";
const banner_image = "collection/pj4u3xm2j4jzeqcvogfd";
const shortname = "Alice's space";
const creator_earning_rate = 0.02; // 2%
const featured_image = "";
const collection_url = "";
const external_link = "";
const twitter_link = "";
const instagram_link = "";
const discord_link = "";
const telegram_link = "";

const res = await sdk.createCollection(account_name, account_index, category_id, logo_image, description, banner_image, shortname, creator_earning_rate, featured_image, collection_url, external_link, twitter_link, instagram_link, discord_link, telegram_link);

console.log("collection id: ", res);

Example result

collection id: 45971j

Mint NFT

• Every account has a default collection ID. If the collection ID is not filled in, the NFT will be associated with the default collection ID = 0. Transaction of minting an NFT will be confirmed by Zecrey and once the NFT is confirmed, Zecrey will submit it to L1.

• L2 allows the change of ownership for the NFT. However, the creator of the NFT will never change. Each time an NFT is transferred, the creator will receive a royalty, which is calculated by the NFT's TreasuryRate set by its creator.

📚SDK REFERENCE

• MintNft

• Parameters needed for creating an NFT:

  Parameter	Parameter usage and meaning	Required or not
  accountName	The account name used to initialize the client	✅
  seed	The user's L2 seed used to initialize the client	✅
  NftUrl	The logo image displayed for mobile users	✅
  Name	NFT name	✅
  Description	The description of the NFT, and filling in "-" is recommended if there is no description	✅
  assetProperty	Custom properties	✅
  assetLevel	Custom levels	✅
  assetStats	Custom stats	✅
  TreasuryRate	Creator royalties will be charged at this rate and the percentage will be in proportion to 10000 during NFT transactions. For example, filling in 50000 means the rate will be 5000/10000 % = 0.5%	✅
• Create an NFT with the name "Alice's BestNft"

  1. Initialize the client

  2. Use json Marshal to transform the properties, levels and stats into string type

  3. Create an NFT

Golang

Example

package main

import (
   "fmt"
   "github.com/Zecrey-Labs/zecrey-marketplace-go-sdk/sdk"
)


func main() {
        var CollectionId int64 = 15 //Get list of collections
        accountName := "Alice"
        seed := "0x6a1a320d14790f2d9aa9a37769f4833d583a3f7f974fd452a3990aeb0e7a6052"
        c, err := sdk.NewClient(accountName, seed) 	 
        if err != nil { panic(err) }
        
        NftUrl := "https://res.cloudinary.com/zecrey/image/upload/collection/ahykviwc0suhoyzusb5q.jpg"
        Name := "Alice`s BestNft"
        Description := "my first nft"
        Media := "collection/dekkg5j1ptccq9ttliui"//public Id after uploading media 
        TreasuryRate:=10
        assetProperty := Propertie{  //custom properties
           Name:  "assetProperty",
           Value: "red1",
        }
        assetLevel := Level{ //custom levels
           Name:     "assetLevel",
           Value:    120,
           MaxValue: 100,
        }
        assetStats := Stat{//custom stats
           Name:     "StatType",
           Value:    400,
           MaxValue: 200,
        }
        // get content hash
        
        _Properties := []Propertie{assetProperty}
        _Levels := []Level{assetLevel}
        _Stats := []Stat{assetStats}
        
        _PropertiesByte, err := json.Marshal(_Properties)
        _LevelsByte, err := json.Marshal(_Levels)
        _StatsByte, err := json.Marshal(_Stats)
        
        result, err := c.MintNft(
           CollectionId,
           NftUrl, Name,
           TreasuryRate,
           Description, Media,
           string(_PropertiesByte), string(_LevelsByte), string(_StatsByte))
        if err != nil { panic(err) }
        
        data, err := json.Marshal(result)
        if err != nil { panic(err) }
        fmt.Println(string(data))
 }

Example result

{
    "asset":{
        "id":11,
        "account_name":"Alice.zec",
        "nft_index":-1,//nftindex = -1 means that the NFT is in pending state and operations like transfer cannot be done with this NFT
        "collection_id":15,
        "creator_earning_rate":0,
        "name":"Alice`s BestNft",
        "description":"my first nft",
        "media":"collection/dekkg5j1ptccq9ttliui",
        "image_thumb":"https://res.cloudinary.com/zecrey/image/upload/collection/dekkg5j1ptccq9ttliui",
        "video_thumb":"https://res.cloudinary.com/zecrey/image/upload/collection/dekkg5j1ptccq9ttliui",
        "audio_thumb":"https://res.cloudinary.com/zecrey/image/upload/collection/dekkg5j1ptccq9ttliui",
        "status":"0",
        "content_hash":"6a7ab257b1f42474d31b2b94b483d2b34702e8d89fa21481574232cd979bdfe3", //ACC:Alice.zec CID:15 NFT:- PROPERTIES: k:assetProperty v:red1 LEVELS: k:assetLevel v:123 STATS: k:StatType v:456 Calculate the hash of the account name, collectionid, shortName, assetProperty, assetLevel, assetStats to get the value
        "nft_url":"-",
        "expired_at":1668085431849,
        "created_at":1667912632,
        "properties":[
            {
                "name":"assetProperty",
                "value":"red1"
            }
        ],
        "levels":[
            {
                "name":"assetLevel",
                "value":120,
                "maxValue":100
            }
        ],
        "stats":[
            {
                "name":"StatType",
                "value":400,
                "maxValue":200
            }
        ]
    }
}

Javascript

Example

With the private key:

import { Client } from "@zecrey/zecrey-legend-js-sdk";

const account_name = "Alice.zec";
const seed = "0x6a1a320d14790f2d9aa9a37769f4833d583a3f7f974fd452a3990aeb0e7a6052";
const client = new Client(account_name, seed);
await client.initialize();

const collection_id = 5;
const nft_url = "";
const name = "amber's nft";
const description = "Description information";
const media = "collection/in9tbyo5gheczolvhezx";
const properties = "[{"name":"color","value":"black"}]";
const levels = "[]";
const stats = "[]";
const res = await client.mintNft(collection_id, nft_url, name, description, media, properties, levels, stats);

console.log("NFT id: ", res);

With the wallet:

import { SDK } from "@zecrey/zecrey-legend-js-sdk";

const sdk = new SDK();
await sdk.initial();

const account_name = "Alice.zec"; // sender's account name
const account_index = 14; // sender's account index
const collection_id = 5;
const nft_url = "";
const name = "amber's nft";
const description = "Description information";
const media = "collection/in9tbyo5gheczolvhezx";
const properties = "[{"name":"color","value":"black"}]";
const levels = "[]";
const stats = "[]";
const res = await sdk.mintNft(account_name, account_index, collection_id, nft_url, name, description, media, properties, levels, stats);

console.log("NFT id: ", res);

Example result

NFT id: 78981