# Load ABI

You have to reference two things in the code editor to load and access a smart contract:

* The contract address

```
// SYNTAX
address(name, address).

// EXAMPLE
address(hyperdapp, '0x87A852A30f778E2837283B09E49f03200110e865').
address(hyper_dapp, '0x87A852A30f778E2837283B09E49f03200110e865').
```

* The contract ABI

```
// SYNTAX
abi(name, [...ABI_FUNCTIONS]).

// EXAMPLE
abi(hyperdapp, [...]).
abi(hyper_dapp, [...]).
```

{% hint style="danger" %}
The contract `name` must be:

* in *snake\_case* **OR** *camelCase*
* the same for both the `address()`and the `abi()`
  {% endhint %}

{% hint style="info" %}
The dot at the end of the line is very important in Prolog. It marks the end of a statement.
{% endhint %}

The syntax for writing the `ABI_FUNCTIONS` is the following:

```
// SYNTAX
funtion_name(...input_types): output_type / state_mutability

// EXAMPLES
// View Methods
balanceOf(address, uint256): uint256 / view
name: string / view

// Pure Methods
contractType: bytes32 / pure

// Payable Method
claim(address, uint256): payable

// Non-Payable Method
setContractURI(string)
```

{% hint style="info" %}
In Solidity, there are three different **`stateMutability`** for a function: pure/view/payable/nonpayable. With HyperDapp, you need to reference it only when it is pure/view/payable.

<https://docs.soliditylang.org/en/v0.8.13/abi-spec.html#json>
{% endhint %}

If the function name is ***not camelCase***, it must be surrounded by single quotes:

```
'DEFAULT_ADMIN_ROLE': bytes32 / view
```

## Load Multiple ABIs

You can load multiple ABIs by using the same syntax as described above. You just need to choose unique smart contract names.

```
address(hyperdapp, '0x87A852A30f778E2837283B09E49f03200110e865').
abi(hyperdapp, [...]).

address(weth, '0xc778417E063141139Fce010982780140Aa0cD5Ab').
abi(weth, [...]).
```


---

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