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# Offchain Gateway (Rust) | ||
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> [!WARNING] | ||
> This repository is under construction 🚧. We are actively improving it hackathon-style. | ||
This is a Rust implementation of the [CCIP gateway](https://alpha-docs.ens.domains/resolvers/ccip). It allows you to issue unlimited gasless subdomains for your name, as well as to create, manage, and moderate namespaces. | ||
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> [!NOTE] | ||
> This gateway is built to be an **Opinionated ENS Subname Issuer**, if youre looking for something more generic, please checkout [ensdomains/offchain-resolver](https://github.com/ensdomains/offchain-resolver), and [ensdomains/offchain-resolver-example](https://github.com/ensdomains/offchain-resolver-example). | ||
## Features | ||
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- CCIP Spec Compliant Gateway Endpoint | ||
- `postgres` - Transparent Database backend. | ||
- `self-service` - Authentication-based updating records. | ||
- `eoa-self-service` - EOA-based Authentication. (TODO) | ||
- Modular authentication for EOA, Admin API, & more. | ||
- View endpoint for profile data. | ||
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## Setup | ||
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### Run the gateway | ||
The gateway is just a docker container / standalone binary. You can run it with docker-compose or just run the binary. | ||
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```yaml | ||
cargo run | ||
``` | ||
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### Deploy a Resolver | ||
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Using a CCIP Gateway requires a resolver contract to be acting on behalf of the name. Although you could write your own contract, we recommend you deploy a proxy contract through [ccip.tools](https://ccip.tools/). | ||
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[![](.github/ccip-tools.png)](https://ccip.tools/) | ||
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(Source for the contracts can be found at [ensdomains/ccip-tools](https://github.com/ensdomains/ccip-tools/tree/master/contracts)) | ||
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When asked for the `Gateway URL` supply your gateway's url (for eg: `https://gateway.example.com/{sender}.json`), and for the `Signers` field supply the address of your gateway (for eg: `[0x225f137127d9067788314bc7fcc1f36746a3c3B5]`), you can find this in the logs of your gateway. | ||
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> [!NOTE] | ||
> There are gas costs associated with deploying a resolver, at the time of writing this (30 gwei), it costs ~0.004 ETH (8 USD) to deploy a resolver (see [txs](https://etherscan.io/tx/0x0c90da0a122f38125a8ad1f48ef23cf5f7d399846bd5369b664ff288a31f797c)). | ||
### Set your Resolver | ||
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Finally you need to instruct the onchain registry to use your resolver. You can do this by visiting your name in the [ENS Manager App](https://ens.app/) and under the `More` tab, set the `Resolver` field to the address of your resolver. | ||
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## Fork this 🍴 | ||
Don't like the implementation? Fork this repo and make it your own! | ||
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You might also be interested in the [resolution logic](https://github.com/ensdomains/offchain-gateway-rs/blob/main/src/gateway/resolution.rs) and [database modularity](https://github.com/ensdomains/offchain-gateway-rs/blob/main/src/database/mod.rs). | ||
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## Integration | ||
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This gateway implementation is designed to be modular, light, and easy to integrate. It comes with the abstract Datastore idea, (by default implemented with postgres), authentication, simple resolution logic, and a self-service API. | ||
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This means that depending on your use case you can easily swap out the database, the resolution logic, and customize authentication. | ||
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### Issuing a name | ||
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To issue a name from an trusted server, you can simply `POST` to `example.com/update` with a JSON body such as | ||
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```json | ||
{ | ||
"name": "luc.willbreak.eth", | ||
"records": { | ||
"name": "Luc", | ||
"text": "hello world", | ||
"avatar": "https://avatars.githubusercontent.com/u/11744586?v=4", | ||
}, | ||
"addresses": { | ||
"60": "0x225f137127d9067788314bc7fcc1f36746a3c3B5" | ||
}, | ||
"auth": "yes" | ||
} | ||
``` | ||
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In a similar fashion users could self-service their names by using this api endpoint and custom authentication logic. | ||
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### Viewing a name | ||
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In events were our app might not have access to ethereum specific tooling, we can use the `GET` endpoint `example.com/view/luc.willbreak.eth` to view the data of a name. This endpoint can be helpful for showing profile editing pages and more. |
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