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developers/asset-pricing.md
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@ -21,6 +21,53 @@ This datatoken represents the access right to your data, so buyers don't have to
The fixed pricing model relies on the [createNftWithErc20WithFixedRate](https://github.com/oceanprotocol/contracts/blob/main/contracts/ERC721Factory.sol#LL674C14-L674C45) in our smart contract, which securely stores the pricing information for assets published using this model. The fixed pricing model relies on the [createNftWithErc20WithFixedRate](https://github.com/oceanprotocol/contracts/blob/main/contracts/ERC721Factory.sol#LL674C14-L674C45) in our smart contract, which securely stores the pricing information for assets published using this model.
<details>
<summary>Create NFT with Fixed Rate Pricing</summary>
```javascript
/**
* @dev createNftWithErc20WithFixedRate
* Creates a new NFT, then a ERC20, then a FixedRateExchange, all in one call
* Use this carefully, because if Fixed Rate creation fails, you are still going to pay a lot of gas
* @param _NftCreateData input data for NFT Creation
* @param _ErcCreateData input data for ERC20 Creation
* @param _FixedData input data for FixedRate Creation
*/
function createNftWithErc20WithFixedRate(
NftCreateData calldata _NftCreateData,
ErcCreateData calldata _ErcCreateData,
FixedData calldata _FixedData
) external nonReentrant returns (address erc721Address, address erc20Address, bytes32 exchangeId){
//we are adding ourselfs as a ERC20 Deployer, because we need it in order to deploy the fixedrate
erc721Address = deployERC721Contract(
_NftCreateData.name,
_NftCreateData.symbol,
_NftCreateData.templateIndex,
address(this),
address(0),
_NftCreateData.tokenURI,
_NftCreateData.transferable,
_NftCreateData.owner);
erc20Address = IERC721Template(erc721Address).createERC20(
_ErcCreateData.templateIndex,
_ErcCreateData.strings,
_ErcCreateData.addresses,
_ErcCreateData.uints,
_ErcCreateData.bytess
);
exchangeId = IERC20Template(erc20Address).createFixedRate(
_FixedData.fixedPriceAddress,
_FixedData.addresses,
_FixedData.uints
);
// remove our selfs from the erc20DeployerRole
IERC721Template(erc721Address).removeFromCreateERC20List(address(this));
}
```
</details>
{% hint style="info" %} {% hint style="info" %}
There are two templates available: [ERC20Template](contracts/datatoken-templates.md#regular-template) and [ERC20TemplateEnterprise](contracts/datatoken-templates.md#enterprise-template). There are two templates available: [ERC20Template](contracts/datatoken-templates.md#regular-template) and [ERC20TemplateEnterprise](contracts/datatoken-templates.md#enterprise-template).
@ -39,7 +86,54 @@ In this model, datatokens are allocated to a dispenser smart contract, which dis
The fixed pricing model relies on the [createNftWithErc20WithDispenser](https://github.com/oceanprotocol/contracts/blob/main/contracts/ERC721Factory.sol#LL713C14-L713C45) in our smart contract, which securely stores the pricing information for assets published using this model. The fixed pricing model relies on the [createNftWithErc20WithDispenser](https://github.com/oceanprotocol/contracts/blob/main/contracts/ERC721Factory.sol#LL713C14-L713C45) in our smart contract, which securely stores the pricing information for assets published using this model.
<details>
<summary>Create NFT with Free Pricing</summary>
```javascript
/**
* @dev createNftWithErc20WithDispenser
* Creates a new NFT, then a ERC20, then a Dispenser, all in one call
* Use this carefully
* @param _NftCreateData input data for NFT Creation
* @param _ErcCreateData input data for ERC20 Creation
* @param _DispenserData input data for Dispenser Creation
*/
function createNftWithErc20WithDispenser(
NftCreateData calldata _NftCreateData,
ErcCreateData calldata _ErcCreateData,
DispenserData calldata _DispenserData
) external nonReentrant returns (address erc721Address, address erc20Address){
//we are adding ourselfs as a ERC20 Deployer, because we need it in order to deploy the fixedrate
erc721Address = deployERC721Contract(
_NftCreateData.name,
_NftCreateData.symbol,
_NftCreateData.templateIndex,
address(this),
address(0),
_NftCreateData.tokenURI,
_NftCreateData.transferable,
_NftCreateData.owner);
erc20Address = IERC721Template(erc721Address).createERC20(
_ErcCreateData.templateIndex,
_ErcCreateData.strings,
_ErcCreateData.addresses,
_ErcCreateData.uints,
_ErcCreateData.bytess
);
IERC20Template(erc20Address).createDispenser(
_DispenserData.dispenserAddress,
_DispenserData.maxTokens,
_DispenserData.maxBalance,
_DispenserData.withMint,
_DispenserData.allowedSwapper
);
// remove our selfs from the erc20DeployerRole
IERC721Template(erc721Address).removeFromCreateERC20List(address(this));
}
```
</details>
To make the most of these pricing models, you can rely on user-friendly libraries such as [Ocean.js ](ocean.js/)and [Ocean.py](ocean.py/), specifically developed for interacting with Ocean Protocol. With Ocean.js, you can use the [createFRE() ](ocean.js/publish.md)function to effortlessly deploy a data NFT (non-fungible token) and datatoken with a fixed-rate exchange pricing model. Similarly, in Ocean.py, the [create\_url\_asset()](ocean.py/publish-flow.md#create-an-asset-and-pricing-schema-simultaneously) function allows you to create an asset with fixed pricing. These libraries simplify the process of interacting with Ocean Protocol, managing pricing, and handling asset creation. To make the most of these pricing models, you can rely on user-friendly libraries such as [Ocean.js ](ocean.js/)and [Ocean.py](ocean.py/), specifically developed for interacting with Ocean Protocol. With Ocean.js, you can use the [createFRE() ](ocean.js/publish.md)function to effortlessly deploy a data NFT (non-fungible token) and datatoken with a fixed-rate exchange pricing model. Similarly, in Ocean.py, the [create\_url\_asset()](ocean.py/publish-flow.md#create-an-asset-and-pricing-schema-simultaneously) function allows you to create an asset with fixed pricing. These libraries simplify the process of interacting with Ocean Protocol, managing pricing, and handling asset creation.