> For the complete documentation index, see [llms.txt](https://docs.union.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.union.finance/developers/core/imarketregistry.md).

# MarketRegistry

*Register uToken and UserManager contracts to their tokens*

### userManagers

```solidity
mapping(address => address) userManagers
```

Token address mapped to userManager

*Assumption there will only ever be one UserManager per token*

### uTokens

```solidity
mapping(address => address) uTokens
```

Token address mapped to uToken

*Assumption there will only ever be one UToken per token*

### LogAddUToken

```solidity
event LogAddUToken(address tokenAddress, address contractAddress)
```

*New UToken contract registered*

#### Parameters

| Name            | Type    | Description                         |
| --------------- | ------- | ----------------------------------- |
| tokenAddress    | address | The address of the underlying token |
| contractAddress | address | The contract address                |

### LogAddUserManager

```solidity
event LogAddUserManager(address tokenAddress, address contractAddress)
```

*New UserManager contract registered*

#### Parameters

| Name            | Type    | Description                         |
| --------------- | ------- | ----------------------------------- |
| tokenAddress    | address | The address of the underlying token |
| contractAddress | address | The contract address                |

### \_\_MarketRegistry\_init

```solidity
function __MarketRegistry_init() public
```

@dev Initialization function

### hasUToken

```solidity
function hasUToken(address token) external view returns (bool)
```

### hasUserManager

```solidity
function hasUserManager(address token) external view returns (bool)
```

### setUToken

```solidity
function setUToken(address token, address uToken) external
```

*Register a new UToken contract*

#### Parameters

| Name   | Type    | Description                        |
| ------ | ------- | ---------------------------------- |
| token  | address | The underlying token e.g DAI       |
| uToken | address | the address of the uToken contract |

### setUserManager

```solidity
function setUserManager(address token, address userManager) external
```

*Register a new UToken contract*

#### Parameters

| Name        | Type    | Description                             |
| ----------- | ------- | --------------------------------------- |
| token       | address | The underlying token e.g DAI            |
| userManager | address | the address of the UserManager contract |