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.**
## atst cli
The cli provides a convenient cli for interacting with the AttestationStation contract

**See [cli docs](https://github.com/ethereum-optimism/optimism/blob/develop/packages/atst/docs/cli.md) for usage instructions.**
## React API
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 `createKey` and `createValue` to convert your raw keys and values into bytes that can be used in AttestationStation contract calls
Use `parseString`, `parseBool`, `parseAddress` and `parseNumber` to convert values returned by AttestationStation to their correct data type.
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
Also some more hooks exported by the cli but these are likely the only ones you need.
## Contributing
Please see our [contributing.md](https://github.com/ethereum-optimism/optimism/blob/develop/CONTRIBUTING.md). No contribution is too small.
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.
## Getting help
If you have any problems, these resources could help you:
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
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).
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.
These definitions allow you to communicate with AttestationStation, but are not as easy to use as the high level API.
#### `ATTESTATION_STATION_ADDRESS`
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`.
### React API
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 `createKey` and `createValue` to convert your raw keys and values into bytes that can be used in AttestationStation contract calls.
Use `parseString`, `parseBool`, `parseAddress` and `parseNumber` to convert values returned by AttestationStation to their correct data type.
For convenience we also [export the hooks here](../src/react.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