Horizon contracts

website/package.json

@@ -22,6 +22,7 @@
     "@edgeandnode/gds": "^6.9.0",
     "@edgeandnode/go": "^10.5.1",
     "@emotion/react": "^11.14.0",
+    "@graphprotocol/address-book": "^1.2.0",
     "@graphprotocol/contracts": "^7.3.0",
     "@pinax/graph-networks-registry": "^0.7.1",
     "@react-hookz/web": "^25.2.0",

website/src/contracts.tsx

@@ -1,3 +1,6 @@
+import HorizonAddresses from '@graphprotocol/address-book/horizon/addresses.json'
+import IssuanceAddresses from '@graphprotocol/address-book/issuance/addresses.json'
+import SubgraphServiceAddresses from '@graphprotocol/address-book/subgraph-service/addresses.json'
 import ContractAddresses from '@graphprotocol/contracts/addresses.json'
 
 import { getAddressLink } from '@edgeandnode/common'
@@ -7,14 +10,38 @@ import { Table } from '@/components'
 import { useI18n } from '@/i18n'
 
 type ValueOf<T> = T[keyof T]
+
+/**
+ * Legacy protocol contracts (Ethereum Mainnet, Sepolia) sourced from `@graphprotocol/contracts`.
+ * The new Horizon deployments on Arbitrum live in `@graphprotocol/address-book` (see below).
+ */
 const contractsByNetworkId = ContractAddresses as Record<string, ValueOf<typeof ContractAddresses>>
 
-export function ProtocolContractsTable({ networkId }: { networkId: number }) {
+/**
+ * Horizon-era contracts (Arbitrum One, Arbitrum Sepolia) sourced from `@graphprotocol/address-book`.
+ * Each package file is keyed by chain ID, then by contract name. Reading straight from the package
+ * means new deployments are picked up automatically whenever the dependency is bumped.
+ */
+type AddressBookEntry = { address: string }
+type AddressBook = Record<string, Record<string, AddressBookEntry>>
+
+export const addressBookPackages = {
+  horizon: HorizonAddresses as AddressBook,
+  'subgraph-service': SubgraphServiceAddresses as AddressBook,
+  issuance: IssuanceAddresses as AddressBook,
+}
+
+export type AddressBookPackage = keyof typeof addressBookPackages
+
+/** Shared name + address table used by both the legacy and address-book sources. */
+function ContractsTable({
+  networkId,
+  contracts,
+}: {
+  networkId: number
+  contracts: { name: string; address: string }[]
+}) {
   const { t } = useI18n()
-  const contracts = Object.entries(contractsByNetworkId[`${networkId}`] ?? {}).map(([name, contract]) => ({
-    ...contract,
-    name,
-  }))
   return (
     <Table>
       <tbody>
@@ -34,3 +61,22 @@ export function ProtocolContractsTable({ networkId }: { networkId: number }) {
     </Table>
   )
 }
+
+/** Legacy protocol contracts for a given network, from `@graphprotocol/contracts`. */
+export function ProtocolContractsTable({ networkId }: { networkId: number }) {
+  const contracts = Object.entries(contractsByNetworkId[`${networkId}`] ?? {}).map(([name, contract]) => ({
+    name,
+    address: contract.address,
+  }))
+  return <ContractsTable networkId={networkId} contracts={contracts} />
+}
+
+/** Horizon-era contracts for a given network and package, from `@graphprotocol/address-book`. */
+export function HorizonContractsTable({ networkId, product }: { networkId: number; product: AddressBookPackage }) {
+  const contracts = Object.entries(addressBookPackages[product][`${networkId}`] ?? {}).map(([name, contract]) => ({
+    name,
+    address: contract.address,
+  }))
+  if (contracts.length === 0) return null
+  return <ContractsTable networkId={networkId} contracts={contracts} />
+}

website/src/pages/en/contracts.mdx

@@ -2,28 +2,48 @@
 title: Protocol Contracts
 ---
 
-import { ProtocolContractsTable } from '@/contracts'
+import { HorizonContractsTable, ProtocolContractsTable } from '@/contracts'
 
-Below are the deployed contracts which power The Graph Network. Visit the official [contracts repository](https://github.com/graphprotocol/contracts) to learn more.
+Below are the deployed contracts which power The Graph Network. The Arbitrum contracts are sourced directly from the [`@graphprotocol/address-book`](https://www.npmjs.com/package/@graphprotocol/address-book) package, so they stay current with each release. Visit the official [contracts repository](https://github.com/graphprotocol/contracts) to learn more.
 
 ## Arbitrum One
 
 This is the principal deployment of The Graph Network.
 
-<ProtocolContractsTable networkId={42161} />
+### Horizon
 
-## Ethereum Mainnet
+<HorizonContractsTable networkId={42161} product="horizon" />
 
-This was the original deployment of The Graph Network. Learn more about The Graph's scaling with Arbitrum.
+### Subgraph Service
 
-<ProtocolContractsTable networkId={1} />
+<HorizonContractsTable networkId={42161} product="subgraph-service" />
+
+### Issuance
+
+<HorizonContractsTable networkId={42161} product="issuance" />
 
 ## Arbitrum Sepolia
 
 This is the primary testnet for The Graph Network. Testnet is predominantly used by core developers and ecosystem participants for testing purposes. There are no guarantees of service or availability on The Graph's testnets.
 
-<ProtocolContractsTable networkId={421614} />
+### Horizon
+
+<HorizonContractsTable networkId={421614} product="horizon" />
+
+### Subgraph Service
+
+<HorizonContractsTable networkId={421614} product="subgraph-service" />
+
+### Issuance
+
+<HorizonContractsTable networkId={421614} product="issuance" />
+
+## Ethereum Mainnet
+
+This was the original deployment of The Graph Network. Learn more about The Graph's scaling with Arbitrum.
+
+<ProtocolContractsTable networkId={1} />
 
-## Sepolia
+## Ethereum Sepolia
 
 <ProtocolContractsTable networkId={11155111} />