# Name registry

Energy Web has deployed [OpenEthereum's Name Registry contract.](https://github.com/openethereum/name-registry) This contract is identical to OpenEthereum's original contract, with the exception that it was made Ownable by Energy Web Foundation. Only Energy Web can reserve a name or drain funds from this contract. 

There are two reasons for making this contract Ownable:

1. OpenEthereum's name registry might be needed for other OpenEthereum related system contracts later: e.g. [service transaction checker](https://wiki.parity.io/Permissioning.html#gas-price), or [auto updater](https://wiki.parity.io/Automatic-Updating).
2. We will have the official [Ethereum Name Service](https://ens.domains/) system set up on the chain, so this contract is only needed for internal purposes and will not be used publicly.

The name registry is a placeholder for now. The contract can be found in our repo: <https://github.com/energywebfoundation/ewc-system-contracts/tree/master/contracts/registry>

## Interacting with the Name Registry Contract

### Contract Address and ABI

| Contract       | Address                                    | JSON ABI                                                         |
| -------------- | ------------------------------------------ | ---------------------------------------------------------------- |
| SimpleRegistry | 0x1204700000000000000000000000000000000006 | <https://gist.github.com/ngyam/255a461e2241085a6530d455f7c15529> |

### Callable Functions

| Function                   | Description                                                           |
| -------------------------- | --------------------------------------------------------------------- |
| entries(bytes32)           | Returns an entry based on the sha3 hash of the name registered.       |
| reverse(address)           | Reverse resolution of an address.                                     |
| fee()                      | Returns the fee for reserving a name (not really relevant to public). |
| getData(bytes32,string)    | Returns a string data value from an entry, given its key.             |
| getAddress(bytes32,string) | Returns an address data value from an entry, given its key.           |
| getUint(bytes32,string)    | Returns an unsigned integer data value from an entry, given its key.  |
| getOwner(bytes32)          | Returns the owner of an entry.                                        |
| hasReverse(bytes32)        | Returns true if entry has a reverse address registered.               |
| getReverse(bytes32)        | Returns reverse address of an entry.                                  |
| canReverse(address)        | Returns true if address can have a reverse.                           |
| reverse(address)           | Returns the reverse value of an address.                              |
| reserved(bytes32)          | Returns true if the name (its sha3 hash) is already reserved.         |