# Guardian Contract

The **Guardian** contract provides the account guardians with essential functions to onboard themselves to the Guardian smart wallet system along with providing guardian-related information to the other contracts to help them carry out their functions related to the "Guardian" stakeholder.

{% hint style="info" %}
 Since the **Guardian** contract handles a guardian’s system-level operations, only a **single instance** of this contract is deployed.

For account-specific guardian operations, [check out the`AccountGuardian`contract.](https://app.gitbook.com/o/LjYGRkRPnnKrhcijwaQJ/s/kLTZ8B9UcK4qCh4H7J8P/~/changes/15/guides/account-guardian)
{% endhint %}

{% hint style="info" %}
You can refer to the [Guardian smart wallet architecture ](/guardian-smart-wallet-contracts/overview/architecture.md)to understand the high-level inter-dependencies between various contracts.
{% endhint %}

### **Usage**

#### On the client side:

Use the Guardian contract address directly on the client side to interact with the deployed guardian contract.

#### In smart-contract projects:

```jsx
import {Guardian} from "@guardian-wallet/contracts/utils/Guardian.sol"
```

### **Functions**

```jsx
function addVerifiedGuardian()
```

This function will add the sender as a verified guardian to Guardian Smart Wallet's guardian list.

***

```jsx
function isVerifiedGuardian(address isVerified) -> (bool);
```

Will check if an address is a verified guardian in Guardian Smart Wallet's system. 

**Params:**

`isVerified` the address to be checked for a verified guardian. 

**Returns:**

`bool` Boolean value indicates if an address is a verified guardian or not.

***

```jsx
function removeVerifiedGuardian()
```

Removes the sender as a verified guardian.

***

```solidity
function linkAccountToAccountGuardian(address account, address accountGuardian)
```

Used to maintain a record of each account and it's guardian contract instance(`accountGuardian`) 

**Params**

`account` Address of the account that got initialized 

`accountGuardian` Address of the guardian contract of the account

***

```solidity
function addGuardianToAccount(address guardian, address account)
```

Creates a mapping of smart wallet accounts to their respective guardians 

**Params**

`guardian` Guardian to be added to account 

`account` An account whose guardian list is to be updated.

***

```solidity
function getVerifiedGuardians() -> address[] memory
```

**Returns:**

`address[]` Array of verified guardian addresses

Returns the list of verified guardians in the Guardian Smart Wallet system

{% hint style="info" %}
Can only be called by the dApp owner.
{% endhint %}

***

```solidity
function getAccountGuardian(address account) -> address
```

Returns the `accountGuardian` contract address of a smart wallet account. 

**Params:**

`account` The account who’s **Account Guardian** contract instance address is required. 

**Returns:**

`address` address of the **Account Guardian** contact instance

***

```solidity
function getAccountsTheGuardianIsGuarding(address guardian) -> address[] memory
```

Returns the list of accounts a guardian is guarding. 

**Params**

`guardian` Guardian whose account list has to be returned.

**Returns**\
`address[]` The array of addresses the guardian is guarding.

***

```solidity
function getAccountRecovery(address account) -> address
```

Returns the address of the **Account Recovery** contract of an account. It will be used by guardians to get the *account recovery request* and send the signature back to the **Account Recovery** contract.

**Params:**

`account` The address of the account for which its recovery contract is requested

**Returns:**

`address` The address of the Account Recovery Contract of a smart wallet account

***

```solidity
function isGuardingAccount(address account, address guardian) -> bool
```

A checker function to check if an address is a guardian for the account. 

**Params:**

`account` Account address for which the guardian is being checked.

`guardian` The guardian address that is being checked for being a guardian of the account.

**Returns:**

`bool` Boolean to indicate if the `guardian` address is guarding the `account`

***


---

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