# Mint NFT

## EndPoint

```
POST api/v3/nft/mint
```

## Header

<table><thead><tr><th>Field</th><th>Description</th><th>Example</th><th data-hidden>Type</th><th data-hidden>Required</th></tr></thead><tbody><tr><td>X-API-KEY</td><td>ApiKey</td><td>"HlkcGxbqBeaF76j4rvPaOasyfPwnkQ6B6DQ6THZWbvrAGxzEdulXQvOKLrRWZLnN"</td><td></td><td>Y</td></tr></tbody></table>

## Request

<table><thead><tr><th width="251.00000000000003">Query Param</th><th>Description</th><th>Example</th><th data-hidden></th><th data-hidden></th><th data-hidden></th></tr></thead><tbody><tr><td>exchange</td><td>exchangeAddress in <a href="/pages/pJJM3Uajb0yb2hPgXmFA">exchange info</a></td><td></td><td></td><td></td><td></td></tr><tr><td>minterAddress</td><td>minter address</td><td>"0x2aa52B5fc52c9BD3Bc7555AAB1f565f06baafF5D"</td><td></td><td></td><td></td></tr><tr><td>minterId</td><td>minter accountID</td><td>10110</td><td></td><td></td><td></td></tr><tr><td>toAddress</td><td><mark style="color:orange;">(Optional)</mark> to address</td><td></td><td></td><td></td><td></td></tr><tr><td>toAccountId</td><td>to accountId</td><td>10111，can set to 0 if dont have</td><td></td><td></td><td></td></tr><tr><td>nftType</td><td>0 for ERC1155, 1 for ERC721, now only support ERC1155</td><td>0</td><td></td><td></td><td></td></tr><tr><td>tokenAddress</td><td>tokenAddress, computed by </td><td>"0x2aa52B5fc52c9BD3Bc7555AAB1f565f06baafF5D"</td><td></td><td></td><td></td></tr><tr><td>nftId</td><td>nftId, TODO: add link</td><td>"0x3b65907396d1259f85e649531a43380aab7cfab61475f129783da7d6a6c257f1"</td><td></td><td></td><td></td></tr><tr><td>amount</td><td>how many tokens to be mint.</td><td>"1"</td><td></td><td></td><td></td></tr><tr><td>royaltyPercentage</td><td>fee to the creator of each NFT transaction. 1 ~ 10, percentage</td><td>1, means 1%</td><td></td><td></td><td></td></tr><tr><td>maxFee</td><td><a href="#tokenamountinfo">TokenAmountInfo</a>,<br><a href="/pages/icN9kodBT0xmm85nttBw">minter fee</a>, request type is 9</td><td></td><td></td><td></td><td></td></tr><tr><td>storageId</td><td><a href="/pages/jgw8Oa8wdrzY0preUdwW">the offchain id</a> of fee token</td><td>1</td><td></td><td></td><td></td></tr><tr><td>validUntil</td><td>Timestamp for transfer to become invalid, seconds</td><td><p></p><p>normally current time + 2 months</p></td><td></td><td></td><td></td></tr><tr><td>eddsaSignature</td><td><a href="/pages/ISZr4JIrBKM2AHi5blmm">eddsa signature</a><br>of the <a href="#compute-eddsa-hash">eddsa hash</a></td><td></td><td></td><td></td><td></td></tr><tr><td>royaltyAddress</td><td><mark style="color:orange;">(Optional)</mark> fee to the address, default is minter address</td><td>"0x2aa52B5fc52c9BD3Bc7555AAB1f565f06baafF5D"</td><td></td><td></td><td></td></tr><tr><td>counterFactualInfo</td><td><a href="#counterfactualinfo">(Optional) counterFactual Wallet Info</a></td><td>if it's counterFactual wallet, need pass the info</td><td></td><td></td><td></td></tr></tbody></table>

## Response

<table><thead><tr><th>Field</th><th>Description</th><th>Example</th><th data-hidden>Type</th><th data-hidden>Required</th></tr></thead><tbody><tr><td>hash</td><td>The hash identifier set by the user at the time of submission, can use this hash to get the transfer info</td><td>"0x1d923ca783<br>4dc90484fa2e<br>b611f0f0bc7e<br>741bb107007e<br>bea19ba8caea<br>b4f9d3"</td><td>string</td><td>Y</td></tr><tr><td>status</td><td>Whether the order was successfully submitted or not, please note, user may query after a while to get real process status, as most offchain requests are async processed<br>Allowable : ['received', 'processing', 'processed', 'failed']</td><td>"received"</td><td>string</td><td>Y</td></tr><tr><td>isIdempotent</td><td>Idempotent of submit transfer response, submit same transfer again idempotent will be true</td><td>"false"</td><td>boolean</td><td>Y</td></tr></tbody></table>

## Model

### **NftTokenAmountInfo**

Wrapper object used to describe a token associated with a certain quantity.

<table><thead><tr><th>Field</th><th>Description</th><th>Example</th><th data-hidden>Type</th><th data-hidden>Required</th></tr></thead><tbody><tr><td>tokenId</td><td>The Loopring's NFT token identifier.</td><td>32769</td><td>integer</td><td>Y</td></tr><tr><td>amount</td><td><p>The amount of the NFT</p><p> token</p></td><td>"2"</td><td>string</td><td>Y</td></tr><tr><td>nftData</td><td>The Loopring's NFT token data identifier which is a hash string of NFT token address and NFT_ID</td><td>"0xf7c932351186c3a9053f313eefa16209c018f7f1dba8aa 8ca7100400f7c31085"</td><td></td><td></td></tr></tbody></table>

### TokenAmountInfo

ERC20 token amount info, used for fee here

<table><thead><tr><th>Field</th><th>Description</th><th>Example</th><th data-hidden>Type</th><th data-hidden>Required</th></tr></thead><tbody><tr><td>tokenId</td><td>The Loopring's  ERC20 token identifier.</td><td>0</td><td>integer</td><td>Y</td></tr><tr><td>amount</td><td>The amount of the ERC20 token</td><td>"10000000000000000"</td><td>string</td><td>Y</td></tr></tbody></table>

### counterFactualInfo

counterFactual Wallet Info

<table><thead><tr><th>Field</th><th>Description</th><th>Example</th><th data-hidden>Type</th><th data-hidden>Required</th></tr></thead><tbody><tr><td>walletFactory</td><td>Counter factual wallet factory contract address</td><td>"0xbbbbca6a90<br>1c926f240b89<br>eacb641d8aec<br>7aeafd"</td><td>string</td><td>Y</td></tr><tr><td>walletOwner</td><td>Counter factual wallet owner address, NOT the wallet address</td><td>"0xbbbbca6a90<br>1c926f240b89<br>eacb641d8aec<br>7aeafd"</td><td>string</td><td>Y</td></tr><tr><td>walletSalt</td><td>Salt to generate address from owner &#x26; other related info</td><td>"1"</td><td>string</td><td>Y</td></tr></tbody></table>

## Compute eddsa hash

```
export function getNftData(request: NFTMintRequestV3) {
  const hasher = Poseidon.createHash(7, 6, 52);
  const nftIdHi = new BN(request.nftId.substr(2, 32), 16).toString(10);
  const nftIdLo = new BN(request.nftId.substr(2 + 32, 32), 16).toString(10);
  const inputs = [
    request.minterAddress,
    request.nftType,
    request.tokenAddress,
    nftIdLo,
    nftIdHi,
    request.royaltyPercentage,
  ];
  return hasher(inputs).toString(10);
}

const inputs = [
    new BN(ethUtil.toBuffer(request.exchange)).toString(),
    request.minterId,
    request.toAccountId,
    getNftData(request),
    request.amount,
    request.maxFee.tokenId,
    request.maxFee.amount,
    request.validUntil,
    request.storageId,
  ];
  const hasher = Poseidon.createHash(inputs.length + 1, 6, 53);
  const hash = hasher(inputs).toString(10);
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs-protocol.loopring.io/counterfactual-nft/api-references/mint-nft.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.