# Grant/Revoke Roles

## **Introduction**

There is a common role flow in inverter network, this guide guides you on how to manage granting / revoking and checking different roles throughout our protocol.

## **Setup Requirements**

The guide includes code snippets for Inverter Network's TypeScript SDK. Please refer to the relevant code snippets based on the SDK you are using.

1. **Set up Inverter Network SDK**: Refer to the Quick Start guides for detailed instructions. See the [React SDK Guide](https://docs.inverter.network/sdk/react-sdk) or [TypeScript SDK Guide](https://docs.inverter.network/sdk/typescript-sdk) for more information.
2. **Deploy a Workflow**: Refer to the Deploy a Workflow guide for detailed instructions. See the [React SDK Guide ](https://docs.inverter.network/sdk/react-sdk/deploy-a-workflow)or [TypeScript SDK Guide](https://docs.inverter.network/sdk/typescript-sdk/deploy-a-workflow) for more information.
3. **Retrieve a deployed Workflow**: Refer to the Operate a Workflow guide for detailed instructions. See the [React SDK Guide](https://docs.inverter.network/sdk/react-sdk/operate-a-workflow) or [TypeScript SDK Guide](https://docs.inverter.network/sdk/typescript-sdk/operate-a-workflow) for more information.

* **Optionally if your setup needs a specific contract**: Refer to the Deploy a Contract Guide for detailed instructions. See the [React SDK](https://docs.inverter.network/sdk/react-sdk/deploy-a-contract) Guide or [TypeScript SDK](https://docs.inverter.network/sdk/typescript-sdk/deploy-a-contract) Guide for more information.

## Retrieve Workflow Args

The chosen modules for the workflows should be specified for type safety.

{% code overflow="wrap" %}

```typescript
import type { RequestedModules } from '@inverter-network/sdk'

// Should either be `as const` or be passed dirrectly in the `requestedModules` param
const requestedModules = {
    fundingManager: 'FM_DepositVault_v1',
    paymentProcessor: 'PP_Simple_v1',
    authorizer: 'AUT_Roles_v1',
    optionalModules: [
        'LM_PC_Bounties_v1'
    ]
} as const satisfies RequestedModules
```

{% endcode %}

## Fetch Role Hexes

To begin with the process we need the role hexes from the authorizer.

{% code overflow="wrap" %}

```typescript
const adminRole = await workflow.authorizer.read.getAdminRole.run()

const verifierRole = await workflow.optionalModule.LM_PC_Bounties_v1.read.VERIFIER_ROLE.run()
```

{% endcode %}

## Admin Role

### Check Role

For checking the status of the role we need to use the role hex.

```typescript
const hasAdminRole = await workflow.authorizer.read.hasRole.run([
    adminRole,
    walletClient.account.address,
])
```

### Grant or Revoke Role

For admin roles we need to use the `grantRole` or `revokeRole` function from the authorizer.

{% code overflow="wrap" %}

```typescript
const args = [
    adminRole,
    walletClient.account.address,
] as const

// Grant role
const grantTransactionHash = await workflow.authorizer.write.grantRole.run(args)

// Revoke role
const revokeTransactionHash = await workflow.authorizer.write.revokeRole.run(args)
```

{% endcode %}

## Module Role

For any role which is not a `orchestrator` admin role we need to generate a role id using the `authorizer` this generation is necessary to have a unique identifier since every workflow has different modules with different addresses.

### Generate Role

Note that this is only to check the status of a module role.

{% code overflow="wrap" %}

```typescript
const generatedVerifierRole = await workflow.authorizer.read.generateRoleId.run([
    workflow.optionalModule.LM_PC_Bounties_v1.address,
    verifierRole,
])
```

{% endcode %}

### Check Role

For checking the status of the role we need to use the generated role.

{% code overflow="wrap" %}

```typescript
const hasVerifierRole = await workflow.authorizer.read.hasRole.run([
    generatedVerifierRole,
    walletClient.account.address,
])
```

{% endcode %}

### Grant or Revoke Role

For module roles we need to use the `grantModuleRole` or `revokeModuleRole` function from the module itself not the authorizer function.

For the granting or revoking we are using the non generated role.

{% code overflow="wrap" %}

```typescript
const args = [
    verifierRole,
    walletClient.account.address,
] as const

// Grant role
const grantTransactionHash = await workflow.optionalModule.LM_PC_Bounties_v1.write.grantModuleRole.run(args)

// Revoke role
const revokeTransactionHash = await workflow.optionalModule.LM_PC_Bounties_v1.write.revokeModuleRole.run(args)
```

{% endcode %}