# BoundValidator

## BoundValidator

The BoundValidator contract is used to validate prices fetched from two different sources. Each asset has an upper and lower bound ratio set in the config. In order for a price to be valid it must fall within this range of the validator price.

## Solidity API

```solidity
struct ValidateConfig {
  address asset;
  uint256 upperBoundRatio;
  uint256 lowerBoundRatio;
}
```

#### validateConfigs

validation configs by asset

```solidity
mapping(address => struct BoundValidator.ValidateConfig) validateConfigs
```

***

#### constructor

Constructor for the implementation contract. Sets immutable variables.

```solidity
constructor() public
```

***

#### initialize

Initializes the owner of the contract

```solidity
function initialize(address accessControlManager_) external
```

**Parameters**

| Name                   | Type    | Description                                    |
| ---------------------- | ------- | ---------------------------------------------- |
| accessControlManager\_ | address | Address of the access control manager contract |

***

#### setValidateConfigs

Add multiple validation configs at the same time

```solidity
function setValidateConfigs(struct BoundValidator.ValidateConfig[] configs) external
```

**Parameters**

| Name    | Type                                    | Description                 |
| ------- | --------------------------------------- | --------------------------- |
| configs | struct BoundValidator.ValidateConfig\[] | Array of validation configs |

**📅 Events**

* Emits ValidateConfigAdded for each validation config that is successfully set

**⛔️ Access Requirements**

* Only Governance

**❌ Errors**

* Zero length error is thrown if length of the config array is 0

***

#### setValidateConfig

Add a single validation config

```solidity
function setValidateConfig(struct BoundValidator.ValidateConfig config) public
```

**Parameters**

| Name   | Type                                 | Description              |
| ------ | ------------------------------------ | ------------------------ |
| config | struct BoundValidator.ValidateConfig | Validation config struct |

**📅 Events**

* Emits ValidateConfigAdded when a validation config is successfully set

**⛔️ Access Requirements**

* Only Governance

**❌ Errors**

* Null address error is thrown if asset address is null
* Range error thrown if bound ratio is not positive
* Range error thrown if lower bound is greater than or equal to upper bound

***

#### validatePriceWithAnchorPrice

Test reported asset price against anchor price

```solidity
function validatePriceWithAnchorPrice(address asset, uint256 reportedPrice, uint256 anchorPrice) public view virtual returns (bool)
```

**Parameters**

| Name          | Type    | Description            |
| ------------- | ------- | ---------------------- |
| asset         | address | asset address          |
| reportedPrice | uint256 | The price to be tested |
| anchorPrice   | uint256 |                        |

**❌ Errors**

* Missing error thrown if asset config is not set
* Price error thrown if anchor price is not valid

***


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs-v4.venus.io/technical-reference/reference-oracle/bound-validator.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.