> For the complete documentation index, see [llms.txt](https://danlabs.gitbook.io/dan/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://danlabs.gitbook.io/dan/for-developers/launchpad/sdk/create-collection.md).

# Create Collection

### Create Collection

The `launchToken` function from the **Launchpad SDK** is used to create collection of various types of tokens (ERC-721, ERC-1155, SoulBound, Certificate) on the blockchain. It handles public and private minting conditions based on the token type.

***

#### 🔧 Function Signature

```jsx
async function launchToken(
  tokenType,
  _name,
  _symbol,
  _maxSupply,
  price,
  _tokenURI,
  chainId,
  signer,
  contractAddress,
  env
)

```

***

<details>

<summary>📄 Parameters</summary>

* **tokenType** (number): Specifies the type of token to deploy. Possible values:
  * `TokenType.SoulBoundPrivate` (0)
  * `TokenType.ERC1155Public` (1)
  * `TokenType.ERC1155Private` (2)
  * `TokenType.ERC721Public` (3)
  * `TokenType.ERC721Private` (4)
  * `TokenType.Certificate` (5)
* **\_name** (string): The name of the token/collection.
* **\_symbol** (string): The symbol of the token (e.g., `ETH`, `MATIC`).
* **\_maxSupply** (number | ethers.MaxUint256): Maximum token supply. Not needed for ERC 1155 as it will be set later for each NFTs.
* **price** (number): Minting price for ERC 721 public tokens. Set to `0` for private tokens,ERC 1155(later will set for each NFTs) and certificates.
* **\_tokenURI** (string): URI for metadata, required only for **Certificate** tokens. Use an empty string for other types.
* **chainId** (number): The chain ID of the network where the token is deployed.
* **signer** (ethers.Signer): Ethers.js signer object for transaction signing.
* **contractAddress** (string): The address of the deployed contract.
* **env** (string): The environment to use (`testnet` or `mainnet`).

</details>

<details>

<summary>✅ Example Usage</summary>

#### 1. SoulBound Private Token:

```jsx
await launchToken(
  TokenType.SoulBoundPrivate,
  'MySoulBoundToken',
  'SBT',
  5000,
  0,
  '',
  1,  // Ethereum Mainnet
  signer,
  '0xContractAddress',
  undefined
);

```

#### 2. ERC-1155 Public Token:

```jsx
await launchToken(
  TokenType.ERC1155Public,
  'GameAssets',
  'GMA',
  0,
  0,
  '',
  137,  // Polygon Mainnet
  signer,
  '0xContractAddress',
  undefined
);

```

#### 3. ERC-1155 Private Token:

```jsx
await launchToken(
  TokenType.ERC1155Private,
  'PrivateAssets',
  'PVA',
  0,
  0,
  '',
  137,  // Polygon Mainnet
  signer,
  '0xContractAddress',
  undefined
);

```

#### 4. ERC-721 Public Token:

```jsx
await launchToken(
  TokenType.ERC721Public,
  'ArtGallery',
  'ART',
  1000, 
  ethers.utils.parseEther('0.1'), //in smallest unit of that currency
  '',
  1,  // Ethereum Mainnet
  signer,
  '0xContractAddress',
  undefined
);

```

#### 5. ERC-721 Private Token:

```jsx
await launchToken(
  TokenType.ERC721Private,
  'VIPArt',
  'VIP',
  200,
  0,
  '',
  1,  // Ethereum Mainnet
  signer,
  '0xContractAddress',
undefined
);

```

#### 6. Certificate Token:

</details>

####


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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://danlabs.gitbook.io/dan/for-developers/launchpad/sdk/create-collection.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.