# PoolAddressesProviderRegistry

**🔹Constructor**

* **`constructor(address owner)`** Initializes the contract and assigns the initial `owner` who has admin rights.

***

**🔹View Functions (read-only)**

* **`getAddressesProviderAddressById(uint256 id) → address`** Returns the provider’s address linked to a given market ID. If no provider exists for that ID, it returns the zero address.
* **`getAddressesProviderIdByAddress(address provider) → uint256`** Returns the ID assigned to a specific provider address. If the provider is not registered, it returns `0`.
* **`getAddressesProvidersList() → address[]`** Returns the full list of currently registered providers.
* **`owner() → address`** Returns the address of the current contract owner.

***

**🔹State-Changing Functions (write operations)**

* **`registerAddressesProvider(address provider, uint256 id)`** Registers a new provider.
  * The provider must not already be registered.
  * The ID must be unique (not used by another provider). Only callable by the contract owner.
* **`unregisterAddressesProvider(address provider)`** Removes a provider from the registry, freeing its ID. Only callable by the contract owner.
* **`transferOwnership(address newOwner)`** Transfers ownership rights from the current owner to a `newOwner`. Only callable by the current owner.
* **`renounceOwnership()`** The current owner gives up ownership permanently. After this, no one will have special admin rights. This action cannot be undone.

***

**🔹Events**

* **`AddressesProviderRegistered(address provider, uint256 id)`** Triggered when a provider is registered.
* **`AddressesProviderUnregistered(address provider, uint256 id)`** Triggered when a provider is removed from the registry.
* **`OwnershipTransferred(address previousOwner, address newOwner)`** Triggered when ownership is transferred to a new account.

Copy

```
[
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "owner",
        "type": "address"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "constructor"
  },
  {
    "anonymous": false,
    "inputs": [
      { "indexed": true, "internalType": "address", "name": "addressesProvider", "type": "address" },
      { "indexed": true, "internalType": "uint256", "name": "id", "type": "uint256" }
    ],
    "name": "AddressesProviderRegistered",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      { "indexed": true, "internalType": "address", "name": "addressesProvider", "type": "address" },
      { "indexed": true, "internalType": "uint256", "name": "id", "type": "uint256" }
    ],
    "name": "AddressesProviderUnregistered",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" },
      { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" }
    ],
    "name": "OwnershipTransferred",
    "type": "event"
  },
  {
    "inputs": [{ "internalType": "uint256", "name": "id", "type": "uint256" }],
    "name": "getAddressesProviderAddressById",
    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [{ "internalType": "address", "name": "addressesProvider", "type": "address" }],
    "name": "getAddressesProviderIdByAddress",
    "outputs": [{ "internalType": "uint256", "name": "", "type": "uint256" }],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "getAddressesProvidersList",
    "outputs": [{ "internalType": "address[]", "name": "", "type": "address[]" }],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "owner",
    "outputs": [{ "internalType": "address", "name": "", "type": "address" }],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      { "internalType": "address", "name": "provider", "type": "address" },
      { "internalType": "uint256", "name": "id", "type": "uint256" }
    ],
    "name": "registerAddressesProvider",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "renounceOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [{ "internalType": "address", "name": "newOwner", "type": "address" }],
    "name": "transferOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [{ "internalType": "address", "name": "provider", "type": "address" }],
    "name": "unregisterAddressesProvider",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  }
]



```


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