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ocean.js/docs/classes/SmartContract.md
Alex Coseru 9bf71ba4f0
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Co-authored-by: Bogdan Fazakas <bogdan.fazakas@gmail.com>
Co-authored-by: GitHub Actions Bot <>
Co-authored-by: Jamie Hewitt <jamie.hewitt15@gmail.com>
Co-authored-by: Jamie Hewitt <jamie@oceanprotocol.com>
2023-05-29 11:20:38 +03:00

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Markdown

[@oceanprotocol/lib](../README.md) / [Exports](../modules.md) / SmartContract
# Class: SmartContract
## Hierarchy
- **`SmartContract`**
↳ [`SmartContractWithAddress`](SmartContractWithAddress.md)
↳ [`Datatoken`](Datatoken.md)
↳ [`Nft`](Nft.md)
## Table of contents
### Constructors
- [constructor](SmartContract.md#constructor)
### Properties
- [abi](SmartContract.md#abi)
- [config](SmartContract.md#config)
- [signer](SmartContract.md#signer)
### Methods
- [amountToUnits](SmartContract.md#amounttounits)
- [getContract](SmartContract.md#getcontract)
- [getDefaultAbi](SmartContract.md#getdefaultabi)
- [getFairGasPrice](SmartContract.md#getfairgasprice)
- [unitsToAmount](SmartContract.md#unitstoamount)
## Constructors
### constructor
**new SmartContract**(`signer`, `network?`, `config?`, `abi?`)
Instantiate the smart contract.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `signer` | `Signer` | The signer object. |
| `network?` | `string` \| `number` | Network id or name |
| `config?` | [`Config`](Config.md) | The configuration object. |
| `abi?` | [`AbiItem`](../interfaces/AbiItem.md)[] | ABI array of the smart contract |
#### Defined in
[contracts/SmartContract.ts:25](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L25)
## Properties
### abi
**abi**: [`AbiItem`](../interfaces/AbiItem.md)[]
#### Defined in
[contracts/SmartContract.ts:14](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L14)
___
### config
**config**: [`Config`](Config.md)
#### Defined in
[contracts/SmartContract.ts:13](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L13)
___
### signer
**signer**: `Signer`
#### Defined in
[contracts/SmartContract.ts:12](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L12)
## Methods
### amountToUnits
`Protected` **amountToUnits**(`token`, `amount`, `tokenDecimals?`): `Promise`<`string`\>
Converts an amount of tokens to units
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `token` | `string` | The token to convert |
| `amount` | `string` | The amount of tokens to convert |
| `tokenDecimals?` | `number` | The number of decimals of the token |
#### Returns
`Promise`<`string`\>
- The converted amount in units
#### Defined in
[contracts/SmartContract.ts:43](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L43)
___
### getContract
`Protected` **getContract**(`address`, `abi?`): `Contract`
Returns a contract instance for the given address
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `address` | `string` | The address of the contract |
| `abi?` | [`AbiItem`](../interfaces/AbiItem.md)[] | The ABI of the contract |
#### Returns
`Contract`
- The contract instance
#### Defined in
[contracts/SmartContract.ts:80](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L80)
___
### getDefaultAbi
`Abstract` **getDefaultAbi**(): `any`
#### Returns
`any`
#### Defined in
[contracts/SmartContract.ts:16](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L16)
___
### getFairGasPrice
`Protected` **getFairGasPrice**(): `Promise`<`string`\>
Retruns the gas price
#### Returns
`Promise`<`string`\>
- The fair gas price
#### Defined in
[contracts/SmartContract.ts:70](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L70)
___
### unitsToAmount
`Protected` **unitsToAmount**(`token`, `amount`, `tokenDecimals?`): `Promise`<`string`\>
Converts an amount of units to tokens
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `token` | `string` | The token to convert |
| `amount` | `string` | The amount of units to convert |
| `tokenDecimals?` | `number` | The number of decimals in the token |
#### Returns
`Promise`<`string`\>
- The converted amount in tokens
#### Defined in
[contracts/SmartContract.ts:58](https://github.com/oceanprotocol/ocean.js/blob/c99bc5c6/src/contracts/SmartContract.ts#L58)