> For the complete documentation index, see [llms.txt](https://zurfsocial.gitbook.io/zurf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://zurfsocial.gitbook.io/zurf/technical-stuff/contracts/data-access.md).

# Data Access

How to access different data inside wav3s.sol

There is public information about the state of actions and budgets in the contract useful for frontend and client apps to create a great user experience for Zurfers.

### Direct Values

The following are public single variables:

| Parameter                       | type    | Description                                                                               |
| ------------------------------- | ------- | ----------------------------------------------------------------------------------------- |
| nextActionId                    | uint256 | The next ActionId to be emitted                                                           |
| protocolFee                     | uint256 | The percentage of the budget charged by the protocol per action funded.                   |
| baseFee                         | uint256 | The base fee in native currency charged by the protocol each time a fundAction is called. |
| s\_NativeCurrencyProtocolWallet | uint256 | The amount of native currency fees acumulated by the protocol.                            |

### Mappings

The following are public accesible mappings:

| Parameter                               | Inputs                                         | Returns                  | Description                                                            |
| --------------------------------------- | ---------------------------------------------- | ------------------------ | ---------------------------------------------------------------------- |
| s\_PubIdToActionNameToActionDataBase    | \[string: "pubId"]\[string: "actionName"]      | struct ActionDataBase    | Access ActionDataBase struct by giving pubId and actionName values.    |
| s\_PubIdToActionNameToActionDataFilters | \[string: "pubId"]\[string: "actionName"]      | struct ActionDataFilters | Access ActionDataFilters struct by giving pubId and actionName values. |
| s\_currencyWhitelisted                  | \[address: "currency"]                         | bool                     | Returns true if currency is whitelisted.                               |
| s\_superCurrencyWhitelisted             | \[address: "currency"]                         | bool                     | Returns true if currency is whitelisted as superCurrency.              |
| s\_appAddressToAppFee                   | \[address: "appAddress"]                       | uint256                  | Returns the fee in percetage that the app charges.                     |
| s\_userToCurrencyToWalletBudget         | \[address: "user"]\[address: "currency"]       | uint256                  | Returns the internal  currency balance of the user.                    |
| s\_userToNativeCurrencyToWalletBudget   | \[address: "user"]                             | uint256                  | Returns the internal  native currency balance of the user.             |
| s\_CurrencyToProtocolWallet             | \[address: "currency"]                         | uint256                  | Returns the acumulated protocol fees of the currency.                  |
| s\_appToCurrencyToWallet                | \[address: "appAddress"]\[address: "currency"] | uint256                  | Returns the acumulated APP fees of the currency.                       |

###

### Structs

Structs can give you access to data related to recorded actions:

<table><thead><tr><th>Struct</th><th>Parameters</th></tr></thead><tbody><tr><td>ActionDataBase</td><td><p></p><pre class="language-solidity"><code class="lang-solidity">struct ActionDataBase {
    address currency;
    string pubId;
    string actionName;
    uint256 budget;
    uint256 reward;
    bool pubIdSet;
    bool initiatedAction;
}
</code></pre></td></tr><tr><td>ActionDataFilters</td><td><p></p><pre class="language-solidity"><code class="lang-solidity">struct ActionDataFilters {
    uint256 zurfersCount;
    address[] zurfers;
    uint256 raffleEnd;
    uint256 winners;
    uint256 withdrawalTime;
    uint256 variable;
    address pubOwner;
}
</code></pre></td></tr></tbody></table>

Then, you can access the "currency" used in an Action by calling the mapping:

```solidity
s_PubIdToActionNameToActionDataBase["pubId"]["actionName"].currency
```