The typescript sdk provides a clean [wagmi](https://wagmi.sh/) based interface for reading and writing to the attestation station
The typescript sdk provides a clean [wagmi](https://wagmi.sh/) based interface for reading and writing to AttestationStation.
### See [sdk docs](https://github.com/ethereum-optimism/optimism/blob/develop/packages/atst/docs/sdk.md) for usage instructions
**See [sdk docs](https://github.com/ethereum-optimism/optimism/blob/develop/packages/atst/docs/sdk.md) for usage instructions.**
## atst cli
## atst cli
The cli provides a convenient cli for interacting with the attestation station contract
The cli provides a convenient cli for interacting with the AttestationStation contract


## React API
**See [cli docs](https://github.com/ethereum-optimism/optimism/blob/develop/packages/atst/docs/cli.md) for usage instructions.**
For react hooks we recomend using the [wagmi cli](https://wagmi.sh/cli/getting-started) with the [etherscan plugin](https://wagmi.sh/cli/plugins/etherscan) and [react plugin](https://wagmi.sh/cli/plugins/react) to automatically generate react hooks around the attestation station.
## React API
Use `createKey` and `createValue` to convert your raw keys and values into bytes that can be used in the attestation station contract calls
For react hooks we recomend using the [wagmi cli](https://wagmi.sh/cli/getting-started) with the [etherscan plugin](https://wagmi.sh/cli/plugins/etherscan) and [react plugin](https://wagmi.sh/cli/plugins/react) to automatically generate react hooks around AttestationStation.
Use `parseString`, `parseBool`, `parseAddress` and `parseNumber` to convert values returned by attestation station to their correct data type.
Use `createKey` and `createValue` to convert your raw keys and values into bytes that can be used in AttestationStation contract calls
For convenience we also export the hooks here.
Use `parseString`, `parseBool`, `parseAddress` and `parseNumber` to convert values returned by AttestationStation to their correct data type.
`useAttestationStationAttestation` - Reads attestations with useContractRead
For convenience we also [export the hooks here](https://github.com/ethereum-optimism/optimism/blob/develop/packages/atst/src/index.ts):
-`useAttestationStationAttestation` - Reads attestations with useContractRead
-`useAttestationStationVersion` - Reads attestation version
-`useAttestationStationAttest` - Wraps useContractWrite with AttestationStation abi calling attest
-`usePrepareAttestationStationAttest` - Wraps usePrepare with AttestationStation abi calling attest
-`useAttestationStationAttestationCreatedEvent` - Wraps useContractEvents for Created events
`useAttestationStationVersion` - Reads attestation version
Also some more hooks exported by the cli but these are likely the only ones you need.
`useAttestationStationAttest` - Wraps useContractWrite with attestation station abi calling attest
## Contributing
`usePrepareAttestationStationAttest` - Wraps usePrepare with attestation station abi calling attest
Please see our [contributing.md](https://github.com/ethereum-optimism/optimism/blob/develop/CONTRIBUTING.md). No contribution is too small.
`useAttestationStationAttestationCreatedEvent` - Wraps useContractEvents for Created events
Having your contribution denied feels bad.
Please consider [opening an issue](https://github.com/ethereum-optimism/optimism/issues) before adding any new features or apis.
Also some more hooks exported by the cli but these are likely the only ones you need.
## Contributing
## Getting help
Please see our [contributing.md](docs/contributing.md). No contribution is too small.
If you have any problems, these resources could help you:
Having your contribution denied feels bad. Please consider opening an issue before adding any new features or apis
If reading more than one attestation you can use readAttestations to read them with multicall
If reading more than one attestation you can use [`readAttestations`](#readattestations) to read them with [multicall](https://www.npmjs.com/package/ethereum-multicall).
### Writing an attestation
### Writing an attestation
To write to an attestation you must [connect](https://wagmi.sh/core/connectors/metaMask) your wagmi client if not already connected. If using Node.js use the [mock connector](https://wagmi.sh/core/connectors/mock)
To write to an attestation you must [connect](https://wagmi.sh/core/connectors/metaMask) your wagmi client if not already connected.
If using Node.js use the [mock connector](https://wagmi.sh/core/connectors/mock).
The deterministic deployment address for the attestation station currently deployed with create2 on Optimism and Optimism Goerli `0xEE36eaaD94d1Cc1d0eccaDb55C38bFfB6Be06C77`
### High level API
These functions are the easiest way to interact with the AttestationStation contract.
For a more detailed explanation, [see the tutorial](https://github.com/ethereum-optimism/optimism-tutorial/tree/main/ecosystem/attestation-station/using-sdk).
#### `getEvents`
Use `getEvents` to get attestation events using a provider and filters.
* Address: the contract address of the attestation station
* @defaults defaults to the create2 address
*/
contractAddress,
})
```
```
### Parsing bytes
**Return Value:** A list of values attested by the `creator` on the `about` address concerning the `key`, when interpreted as the `dataType`.
These utilities for parsing bytes are provided:
`parseAddress`
#### `writeAttestation`
`parseNumber`
`parseBool`
`parseString`
Note: `readAttestation` and `readAttestations` already parse the bytes so this is only necessary if reading attestations directly from chain instead of through this utility
[Writes the prepared tx](https://wagmi.sh/core/actions/writeContract).
These definitions allow you to communicate with AttestationStation, but are not as easy to use as the high level API.
* The data type of the attestation
* @defaults defaults to 'string'
#### `ATTESTATION_STATION_ADDRESS`
*/
dataType
)
The deployment address for AttestationStation currently deployed with create2 on Optimism and Optimism Goerli `0xEE36eaaD94d1Cc1d0eccaDb55C38bFfB6Be06C77`.
**Note:**`writeAttestation` already does this for you so this is only needed if using a library other than `atst`.
[Writes the prepared tx](https://wagmi.sh/core/actions/writeContract)
### React API
```typescript
For react hooks we recomend using the [wagmi cli](https://wagmi.sh/cli/getting-started) with the [etherscan plugin](https://wagmi.sh/cli/plugins/etherscan) and [react plugin](https://wagmi.sh/cli/plugins/react) to automatically generate react hooks around AttestationStation.
Set key, about, creator, or value to `null` to not include that filter
## Tutorial
## Tutorial
For a tutorial on using the attestation station in general, see out tutorial as well as other Optimism related tutorials in our [optimism-tutorial](https://github.com/ethereum-optimism/optimism-tutorial/tree/main/ecosystem/attestation-station#key-values) repo