From 8fa7f93f5b64103a182aa0c07ca6eaacdfbed106 Mon Sep 17 00:00:00 2001
From: Etienne Donneger <etienne@pinax.network>
Date: Wed, 2 Oct 2024 14:48:05 -0400
Subject: [PATCH 1/9] Replace Etherscan ABI lookups with Sourcify

Etherscan requires an API key for ABI lookup and other operations.
Sourcify (https://sourcify.dev) is an open-source decentralized alternative.
---
 packages/cli/src/command-helpers/abi.ts | 45 ++++++++++++++++++++-----
 packages/cli/src/commands/init.ts       | 28 ++++++---------
 2 files changed, 48 insertions(+), 25 deletions(-)

diff --git a/packages/cli/src/command-helpers/abi.ts b/packages/cli/src/command-helpers/abi.ts
index 365f50039..491bd2ee4 100644
--- a/packages/cli/src/command-helpers/abi.ts
+++ b/packages/cli/src/command-helpers/abi.ts
@@ -7,6 +7,30 @@ import { withSpinner } from './spinner';
 
 const logger = debugFactory('graph-cli:abi-helpers');
 
+export const loadAbiFromSourcify = async (
+  ABICtor: typeof ABI,
+  network: string,
+  address: string,
+): Promise<ABI> =>
+  await withSpinner(
+    `Fetching ABI from Sourcify`,
+    `Failed to fetch ABI from Sourcify`,
+    `Warnings while fetching ABI from Sourcify`,
+    async () => {
+      const chainId = await getSourcifyChainId(network);
+      const result = await fetch(`https://repo.sourcify.dev/contracts/full_match/${chainId}/${address}/metadata.json`);
+      const json = await result.json();
+
+      // Etherscan returns a JSON object that has a `status`, a `message` and
+      // a `result` field. The `status` is '0' in case of errors and '1' in
+      // case of success
+      if (result.ok) {
+        return new ABICtor('Contract', undefined, immutable.fromJS(json.output.abi));
+      }
+      throw new Error('ABI not found, try loading it from a local file');
+    },
+  );
+
 export const loadAbiFromEtherscan = async (
   ABICtor: typeof ABI,
   network: string,
@@ -200,6 +224,19 @@ export const loadAbiFromBlockScout = async (
     },
   );
 
+const getSourcifyChainId = async (network: string) => {
+  const result = await fetch('https://sourcify.dev/server/chains');
+  const json = await result.json();
+
+  // Can fail if network name doesn't follow https://chainlist.org name convention
+  const match = json.find((e: any) => e.name.toLowerCase().includes(network.replace('-', ' ')));
+
+  if (match)
+    return match.chainId;
+  else
+    throw new Error(`Could not find chain id for "${network}"`);
+};
+
 const getEtherscanLikeAPIUrl = (network: string) => {
   switch (network) {
     case 'mainnet':
@@ -334,8 +371,6 @@ const getEtherscanLikeAPIUrl = (network: string) => {
       return 'https://api.routescan.io/v2/network/testnet/evm/9728/etherscan/api';
     case 'fuse-testnet':
       return 'https://explorer.fusespark.io/api';
-    case 'rootstock-testnet':
-      return 'https://rootstock-testnet.blockscout.com/api';
     default:
       return `https://api-${network}.etherscan.io/api`;
   }
@@ -484,12 +519,6 @@ const getPublicRPCEndpoint = (network: string) => {
       return 'https://testnet.bnb.boba.network';
     case 'fuse-testnet':
       return 'https://rpc.fusespark.io';
-    case 'rootstock-testnet':
-      return 'https://public-node.testnet.rsk.co';
-    case 'kaia':
-      return 'https://public-en.node.kaia.io';
-    case 'kaia-testnet':
-      return 'https://public-en.kairos.node.kaia.io';
     default:
       throw new Error(`Unknown network: ${network}`);
   }
diff --git a/packages/cli/src/commands/init.ts b/packages/cli/src/commands/init.ts
index 2712d78db..17c960d20 100644
--- a/packages/cli/src/commands/init.ts
+++ b/packages/cli/src/commands/init.ts
@@ -6,7 +6,7 @@ import { filesystem, prompt, system } from 'gluegun';
 import { Args, Command, Flags, ux } from '@oclif/core';
 import {
   loadAbiFromBlockScout,
-  loadAbiFromEtherscan,
+  loadAbiFromSourcify,
   loadContractNameForAddress,
   loadStartBlockForContract,
 } from '../command-helpers/abi';
@@ -292,7 +292,7 @@ export default class InitCommand extends Command {
             if (network === 'poa-core') {
               abi = await loadAbiFromBlockScout(ABI, network, fromContract);
             } else {
-              abi = await loadAbiFromEtherscan(ABI, network, fromContract);
+              abi = await loadAbiFromSourcify(ABI, network, fromContract);
             }
           } catch (e) {
             process.exitCode = 1;
@@ -544,7 +544,7 @@ async function processInitForm(
     }
   | undefined
 > {
-  let abiFromEtherscan: EthereumABI | undefined = undefined;
+  let abiFromSourcify: EthereumABI | undefined = undefined;
 
   try {
     const { protocol } = await prompt.ask<{ protocol: ProtocolName }>({
@@ -705,17 +705,11 @@ async function processInitForm(
 
           const ABI = protocolInstance.getABI();
 
-          // Try loading the ABI from Etherscan, if none was provided
+          // Try loading the ABI from Sourcify, if none was provided
           if (protocolInstance.hasABIs() && !initAbi) {
-            if (network === 'poa-core') {
-              abiFromEtherscan = await retryWithPrompt(() =>
-                loadAbiFromBlockScout(ABI, network, value),
-              );
-            } else {
-              abiFromEtherscan = await retryWithPrompt(() =>
-                loadAbiFromEtherscan(ABI, network, value),
-              );
-            }
+            abiFromSourcify = await retryWithPrompt(() =>
+              loadAbiFromSourcify(ABI, network, value),
+            );
           }
           // If startBlock is not set, try to load it.
           if (!initStartBlock) {
@@ -765,11 +759,11 @@ async function processInitForm(
         skip: () =>
           !protocolInstance.hasABIs() ||
           initFromExample !== undefined ||
-          abiFromEtherscan !== undefined ||
+          abiFromSourcify !== undefined ||
           isSubstreams ||
           !!initAbiPath,
         validate: async (value: string) => {
-          if (initFromExample || abiFromEtherscan || !protocolInstance.hasABIs()) {
+          if (initFromExample || abiFromSourcify || !protocolInstance.hasABIs()) {
             return true;
           }
 
@@ -791,7 +785,7 @@ async function processInitForm(
           }
         },
         result: async (value: string) => {
-          if (initFromExample || abiFromEtherscan || !protocolInstance.hasABIs()) {
+          if (initFromExample || abiFromSourcify || !protocolInstance.hasABIs()) {
             return null;
           }
           const ABI = protocolInstance.getABI();
@@ -853,7 +847,7 @@ async function processInitForm(
     ]);
 
     return {
-      abi: abiFromEtherscan || abiFromFile,
+      abi: abiFromSourcify || abiFromFile,
       protocolInstance,
       subgraphName,
       directory,

From b247c456bd70adf87c0ef2fa427ec2d18d0c0b4a Mon Sep 17 00:00:00 2001
From: Etienne Donneger <etienne@pinax.network>
Date: Wed, 2 Oct 2024 15:07:16 -0400
Subject: [PATCH 2/9] Remove Etherscan comments in Sourcify method

---
 packages/cli/src/command-helpers/abi.ts | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/packages/cli/src/command-helpers/abi.ts b/packages/cli/src/command-helpers/abi.ts
index 491bd2ee4..539ca7087 100644
--- a/packages/cli/src/command-helpers/abi.ts
+++ b/packages/cli/src/command-helpers/abi.ts
@@ -21,9 +21,6 @@ export const loadAbiFromSourcify = async (
       const result = await fetch(`https://repo.sourcify.dev/contracts/full_match/${chainId}/${address}/metadata.json`);
       const json = await result.json();
 
-      // Etherscan returns a JSON object that has a `status`, a `message` and
-      // a `result` field. The `status` is '0' in case of errors and '1' in
-      // case of success
       if (result.ok) {
         return new ABICtor('Contract', undefined, immutable.fromJS(json.output.abi));
       }

From 69df461224b238a7cbdf5ecf77d831bade80fef8 Mon Sep 17 00:00:00 2001
From: Etienne Donneger <etienne@pinax.network>
Date: Wed, 2 Oct 2024 15:10:15 -0400
Subject: [PATCH 3/9] Fix lint

---
 packages/cli/src/command-helpers/abi.ts | 10 +++++-----
 packages/cli/src/commands/init.ts       |  4 +---
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/packages/cli/src/command-helpers/abi.ts b/packages/cli/src/command-helpers/abi.ts
index 539ca7087..8362214d9 100644
--- a/packages/cli/src/command-helpers/abi.ts
+++ b/packages/cli/src/command-helpers/abi.ts
@@ -18,7 +18,9 @@ export const loadAbiFromSourcify = async (
     `Warnings while fetching ABI from Sourcify`,
     async () => {
       const chainId = await getSourcifyChainId(network);
-      const result = await fetch(`https://repo.sourcify.dev/contracts/full_match/${chainId}/${address}/metadata.json`);
+      const result = await fetch(
+        `https://repo.sourcify.dev/contracts/full_match/${chainId}/${address}/metadata.json`,
+      );
       const json = await result.json();
 
       if (result.ok) {
@@ -228,10 +230,8 @@ const getSourcifyChainId = async (network: string) => {
   // Can fail if network name doesn't follow https://chainlist.org name convention
   const match = json.find((e: any) => e.name.toLowerCase().includes(network.replace('-', ' ')));
 
-  if (match)
-    return match.chainId;
-  else
-    throw new Error(`Could not find chain id for "${network}"`);
+  if (match) return match.chainId;
+  throw new Error(`Could not find chain id for "${network}"`);
 };
 
 const getEtherscanLikeAPIUrl = (network: string) => {
diff --git a/packages/cli/src/commands/init.ts b/packages/cli/src/commands/init.ts
index 17c960d20..2f68ee723 100644
--- a/packages/cli/src/commands/init.ts
+++ b/packages/cli/src/commands/init.ts
@@ -707,9 +707,7 @@ async function processInitForm(
 
           // Try loading the ABI from Sourcify, if none was provided
           if (protocolInstance.hasABIs() && !initAbi) {
-            abiFromSourcify = await retryWithPrompt(() =>
-              loadAbiFromSourcify(ABI, network, value),
-            );
+            abiFromSourcify = await retryWithPrompt(() => loadAbiFromSourcify(ABI, network, value));
           }
           // If startBlock is not set, try to load it.
           if (!initStartBlock) {

From 477ee26cbd7deb7bf38883341fd9c3ef6a46e5aa Mon Sep 17 00:00:00 2001
From: Etienne Donneger <etienne@pinax.network>
Date: Thu, 3 Oct 2024 12:38:41 -0400
Subject: [PATCH 4/9] Use Sourcify for Contract name and remove replaced
 Etherscan methods

---
 packages/cli/src/command-helpers/abi.ts | 48 ++++++-------------------
 packages/cli/src/commands/add.ts        |  4 +--
 2 files changed, 12 insertions(+), 40 deletions(-)

diff --git a/packages/cli/src/command-helpers/abi.ts b/packages/cli/src/command-helpers/abi.ts
index 63c10991d..9a0fb49c3 100644
--- a/packages/cli/src/command-helpers/abi.ts
+++ b/packages/cli/src/command-helpers/abi.ts
@@ -17,43 +17,15 @@ export const loadAbiFromSourcify = async (
     `Failed to fetch ABI from Sourcify`,
     `Warnings while fetching ABI from Sourcify`,
     async () => {
-      const chainId = await getSourcifyChainId(network);
-      const result = await fetch(
-        `https://repo.sourcify.dev/contracts/full_match/${chainId}/${address}/metadata.json`,
-      );
-      const json = await result.json();
+      const json = await fetchMetadataFromSourcify(network, address);
 
-      if (result.ok) {
+      if (json) {
         return new ABICtor('Contract', undefined, immutable.fromJS(json.output.abi));
       }
       throw new Error('ABI not found, try loading it from a local file');
     },
   );
 
-export const loadAbiFromEtherscan = async (
-  ABICtor: typeof ABI,
-  network: string,
-  address: string,
-): Promise<ABI> =>
-  await withSpinner(
-    `Fetching ABI from Etherscan`,
-    `Failed to fetch ABI from Etherscan`,
-    `Warnings while fetching ABI from Etherscan`,
-    async () => {
-      const scanApiUrl = getEtherscanLikeAPIUrl(network);
-      const result = await fetch(`${scanApiUrl}?module=contract&action=getabi&address=${address}`);
-      const json = await result.json();
-
-      // Etherscan returns a JSON object that has a `status`, a `message` and
-      // a `result` field. The `status` is '0' in case of errors and '1' in
-      // case of success
-      if (json.status === '1') {
-        return new ABICtor('Contract', undefined, immutable.fromJS(JSON.parse(json.result)));
-      }
-      throw new Error('ABI not found, try loading it from a local file');
-    },
-  );
-
 export const loadStartBlockForContract = async (
   network: string,
   address: string,
@@ -74,7 +46,7 @@ export const loadContractNameForAddress = async (
   await withSpinner(
     `Fetching Contract Name`,
     `Failed to fetch Contract Name`,
-    `Warnings while fetching contract name from Etherscan`,
+    `Warnings while fetching contract name from Sourcify`,
     async () => {
       return getContractNameForAddress(network, address);
     },
@@ -147,19 +119,19 @@ export const fetchTransactionByHashFromRPC = async (
   }
 };
 
-export const fetchSourceCodeFromEtherscan = async (
+export const fetchMetadataFromSourcify = async (
   network: string,
   address: string,
 ): Promise<any> => {
-  const scanApiUrl = getEtherscanLikeAPIUrl(network);
+  const chainId = await getSourcifyChainId(network);
   const result = await fetch(
-    `${scanApiUrl}?module=contract&action=getsourcecode&address=${address}`,
+    `https://repo.sourcify.dev/contracts/full_match/${chainId}/${address}/metadata.json`,
   );
   const json = await result.json();
-  if (json.status === '1') {
+  if (result.ok) {
     return json;
   }
-  throw new Error('Failed to fetch contract source code');
+  throw new Error('Failed to fetch metadata for address');
 };
 
 export const getContractNameForAddress = async (
@@ -167,8 +139,8 @@ export const getContractNameForAddress = async (
   address: string,
 ): Promise<string> => {
   try {
-    const contractSourceCode = await fetchSourceCodeFromEtherscan(network, address);
-    const contractName = contractSourceCode.result[0].ContractName;
+    const json = await fetchMetadataFromSourcify(network, address);
+    const contractName = Object.values(json.settings.compilationTarget)[0] as string;
     logger('Successfully getContractNameForAddress. contractName: %s', contractName);
     return contractName;
   } catch (error) {
diff --git a/packages/cli/src/commands/add.ts b/packages/cli/src/commands/add.ts
index 2bbd5f9cd..494b7867f 100644
--- a/packages/cli/src/commands/add.ts
+++ b/packages/cli/src/commands/add.ts
@@ -4,7 +4,7 @@ import { Args, Command, Flags } from '@oclif/core';
 import { CLIError } from '@oclif/core/lib/errors';
 import {
   loadAbiFromBlockScout,
-  loadAbiFromEtherscan,
+  loadAbiFromSourcify,
   loadContractNameForAddress,
   loadStartBlockForContract,
 } from '../command-helpers/abi';
@@ -96,7 +96,7 @@ export default class AddCommand extends Command {
     } else if (network === 'poa-core') {
       ethabi = await loadAbiFromBlockScout(EthereumABI, network, address);
     } else {
-      ethabi = await loadAbiFromEtherscan(EthereumABI, network, address);
+      ethabi = await loadAbiFromSourcify(EthereumABI, network, address);
     }
 
     try {

From f02ea66ae48d7bed0452638846b033b06a466c19 Mon Sep 17 00:00:00 2001
From: AK <alikim@gmail.com>
Date: Wed, 9 Oct 2024 14:28:47 -0400
Subject: [PATCH 5/9] added new chain (#1740)

* added new chain: unichain testnet

* Create fair-suns-pay.md
---
 .changeset/fair-suns-pay.md             |  5 +++++
 packages/cli/src/command-helpers/abi.ts | 12 ++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 .changeset/fair-suns-pay.md

diff --git a/.changeset/fair-suns-pay.md b/.changeset/fair-suns-pay.md
new file mode 100644
index 000000000..ac212d2a4
--- /dev/null
+++ b/.changeset/fair-suns-pay.md
@@ -0,0 +1,5 @@
+---
+"@graphprotocol/graph-cli": minor
+---
+
+added new chain
diff --git a/packages/cli/src/command-helpers/abi.ts b/packages/cli/src/command-helpers/abi.ts
index 9a0fb49c3..2e043d775 100644
--- a/packages/cli/src/command-helpers/abi.ts
+++ b/packages/cli/src/command-helpers/abi.ts
@@ -340,6 +340,10 @@ const getEtherscanLikeAPIUrl = (network: string) => {
       return 'https://api.routescan.io/v2/network/testnet/evm/9728/etherscan/api';
     case 'fuse-testnet':
       return 'https://explorer.fusespark.io/api';
+    case 'rootstock-testnet':
+      return 'https://rootstock-testnet.blockscout.com/api';
+    case 'unichain-testnet':
+      return 'https://unichain-sepolia.blockscout.com/api';
     default:
       return `https://api-${network}.etherscan.io/api`;
   }
@@ -488,6 +492,14 @@ const getPublicRPCEndpoint = (network: string) => {
       return 'https://testnet.bnb.boba.network';
     case 'fuse-testnet':
       return 'https://rpc.fusespark.io';
+    case 'rootstock-testnet':
+      return 'https://public-node.testnet.rsk.co';
+    case 'kaia':
+      return 'https://public-en.node.kaia.io';
+    case 'kaia-testnet':
+      return 'https://public-en.kairos.node.kaia.io';
+    case 'unichain-testnet':
+      return 'http://beta-u-Proxy-9QsHxlNJa4es-1179015898.us-east-2.elb.amazonaws.com:8545';
     default:
       throw new Error(`Unknown network: ${network}`);
   }

From 68f504bda6da2508ae8e6c95a48b871de3005103 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]"
 <41898282+github-actions[bot]@users.noreply.github.com>
Date: Wed, 9 Oct 2024 19:49:26 +0000
Subject: [PATCH 6/9] chore(release): update monorepo packages versions (#1741)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
---
 .changeset/fair-suns-pay.md | 5 -----
 packages/cli/CHANGELOG.md   | 8 ++++++++
 packages/cli/package.json   | 2 +-
 3 files changed, 9 insertions(+), 6 deletions(-)
 delete mode 100644 .changeset/fair-suns-pay.md

diff --git a/.changeset/fair-suns-pay.md b/.changeset/fair-suns-pay.md
deleted file mode 100644
index ac212d2a4..000000000
--- a/.changeset/fair-suns-pay.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-"@graphprotocol/graph-cli": minor
----
-
-added new chain
diff --git a/packages/cli/CHANGELOG.md b/packages/cli/CHANGELOG.md
index 25b65ec6d..0b9b761e2 100644
--- a/packages/cli/CHANGELOG.md
+++ b/packages/cli/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @graphprotocol/graph-cli
 
+## 0.86.0
+
+### Minor Changes
+
+- [#1740](https://github.com/graphprotocol/graph-tooling/pull/1740)
+  [`7b4f787`](https://github.com/graphprotocol/graph-tooling/commit/7b4f787ebe4f65dbb233d3dda02f179f75ef21d9)
+  Thanks [@alinobrasil](https://github.com/alinobrasil)! - added new chain
+
 ## 0.85.0
 
 ### Minor Changes
diff --git a/packages/cli/package.json b/packages/cli/package.json
index dc44d84c7..0e8b1b4f6 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphprotocol/graph-cli",
-  "version": "0.85.0",
+  "version": "0.86.0",
   "description": "CLI for building for and deploying to The Graph",
   "license": "(Apache-2.0 OR MIT)",
   "engines": {

From 04bf8d3ec44d99a516a22c873cdd7bf048f7d169 Mon Sep 17 00:00:00 2001
From: AK <alikim@gmail.com>
Date: Wed, 23 Oct 2024 15:48:09 -0400
Subject: [PATCH 7/9] updated public rpc (#1746)

* updated public rpc

* Create itchy-colts-clap.md
---
 .changeset/itchy-colts-clap.md          | 5 +++++
 packages/cli/src/command-helpers/abi.ts | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .changeset/itchy-colts-clap.md

diff --git a/.changeset/itchy-colts-clap.md b/.changeset/itchy-colts-clap.md
new file mode 100644
index 000000000..ae49a8551
--- /dev/null
+++ b/.changeset/itchy-colts-clap.md
@@ -0,0 +1,5 @@
+---
+"@graphprotocol/graph-cli": minor
+---
+
+updated public rpc
diff --git a/packages/cli/src/command-helpers/abi.ts b/packages/cli/src/command-helpers/abi.ts
index 2e043d775..2b808f525 100644
--- a/packages/cli/src/command-helpers/abi.ts
+++ b/packages/cli/src/command-helpers/abi.ts
@@ -499,7 +499,7 @@ const getPublicRPCEndpoint = (network: string) => {
     case 'kaia-testnet':
       return 'https://public-en.kairos.node.kaia.io';
     case 'unichain-testnet':
-      return 'http://beta-u-Proxy-9QsHxlNJa4es-1179015898.us-east-2.elb.amazonaws.com:8545';
+      return 'https://sepolia.unichain.org';
     default:
       throw new Error(`Unknown network: ${network}`);
   }

From 946f9f061148b4e2647b5c34f9b68b5a58f4c05e Mon Sep 17 00:00:00 2001
From: "github-actions[bot]"
 <41898282+github-actions[bot]@users.noreply.github.com>
Date: Wed, 23 Oct 2024 19:50:03 +0000
Subject: [PATCH 8/9] chore(release): update monorepo packages versions (#1747)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
---
 .changeset/itchy-colts-clap.md | 5 -----
 packages/cli/CHANGELOG.md      | 8 ++++++++
 packages/cli/package.json      | 2 +-
 3 files changed, 9 insertions(+), 6 deletions(-)
 delete mode 100644 .changeset/itchy-colts-clap.md

diff --git a/.changeset/itchy-colts-clap.md b/.changeset/itchy-colts-clap.md
deleted file mode 100644
index ae49a8551..000000000
--- a/.changeset/itchy-colts-clap.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-"@graphprotocol/graph-cli": minor
----
-
-updated public rpc
diff --git a/packages/cli/CHANGELOG.md b/packages/cli/CHANGELOG.md
index 0b9b761e2..505ce79b3 100644
--- a/packages/cli/CHANGELOG.md
+++ b/packages/cli/CHANGELOG.md
@@ -1,5 +1,13 @@
 # @graphprotocol/graph-cli
 
+## 0.87.0
+
+### Minor Changes
+
+- [#1746](https://github.com/graphprotocol/graph-tooling/pull/1746)
+  [`fef2e05`](https://github.com/graphprotocol/graph-tooling/commit/fef2e05c07d5f99f01834c4a6b9e063992d4bc2d)
+  Thanks [@alinobrasil](https://github.com/alinobrasil)! - updated public rpc
+
 ## 0.86.0
 
 ### Minor Changes
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 0e8b1b4f6..1bb35f56b 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@graphprotocol/graph-cli",
-  "version": "0.86.0",
+  "version": "0.87.0",
   "description": "CLI for building for and deploying to The Graph",
   "license": "(Apache-2.0 OR MIT)",
   "engines": {

From 23d6a9cba3db345cf2ecef3eeaeaff9b7c97afa6 Mon Sep 17 00:00:00 2001
From: Etienne Donneger <etienne@pinax.network>
Date: Wed, 2 Oct 2024 14:48:05 -0400
Subject: [PATCH 9/9] Replace Etherscan ABI lookups with Sourcify

Etherscan requires an API key for ABI lookup and other operations.
Sourcify (https://sourcify.dev) is an open-source decentralized alternative.
---
 packages/cli/src/command-helpers/abi.ts | 30 +++++++++++++++++++++++--
 packages/cli/src/commands/init.ts       |  4 +++-
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/packages/cli/src/command-helpers/abi.ts b/packages/cli/src/command-helpers/abi.ts
index 2b808f525..2709929f0 100644
--- a/packages/cli/src/command-helpers/abi.ts
+++ b/packages/cli/src/command-helpers/abi.ts
@@ -11,6 +11,30 @@ export const loadAbiFromSourcify = async (
   ABICtor: typeof ABI,
   network: string,
   address: string,
+): Promise<ABI> =>
+  await withSpinner(
+    `Fetching ABI from Sourcify`,
+    `Failed to fetch ABI from Sourcify`,
+    `Warnings while fetching ABI from Sourcify`,
+    async () => {
+      const chainId = await getSourcifyChainId(network);
+      const result = await fetch(`https://repo.sourcify.dev/contracts/full_match/${chainId}/${address}/metadata.json`);
+      const json = await result.json();
+
+      // Etherscan returns a JSON object that has a `status`, a `message` and
+      // a `result` field. The `status` is '0' in case of errors and '1' in
+      // case of success
+      if (result.ok) {
+        return new ABICtor('Contract', undefined, immutable.fromJS(json.output.abi));
+      }
+      throw new Error('ABI not found, try loading it from a local file');
+    },
+  );
+
+export const loadAbiFromEtherscan = async (
+  ABICtor: typeof ABI,
+  network: string,
+  address: string,
 ): Promise<ABI> =>
   await withSpinner(
     `Fetching ABI from Sourcify`,
@@ -202,8 +226,10 @@ const getSourcifyChainId = async (network: string) => {
   // Can fail if network name doesn't follow https://chainlist.org name convention
   const match = json.find((e: any) => e.name.toLowerCase().includes(network.replace('-', ' ')));
 
-  if (match) return match.chainId;
-  throw new Error(`Could not find chain id for "${network}"`);
+  if (match)
+    return match.chainId;
+  else
+    throw new Error(`Could not find chain id for "${network}"`);
 };
 
 const getEtherscanLikeAPIUrl = (network: string) => {
diff --git a/packages/cli/src/commands/init.ts b/packages/cli/src/commands/init.ts
index 2f68ee723..17c960d20 100644
--- a/packages/cli/src/commands/init.ts
+++ b/packages/cli/src/commands/init.ts
@@ -707,7 +707,9 @@ async function processInitForm(
 
           // Try loading the ABI from Sourcify, if none was provided
           if (protocolInstance.hasABIs() && !initAbi) {
-            abiFromSourcify = await retryWithPrompt(() => loadAbiFromSourcify(ABI, network, value));
+            abiFromSourcify = await retryWithPrompt(() =>
+              loadAbiFromSourcify(ABI, network, value),
+            );
           }
           // If startBlock is not set, try to load it.
           if (!initStartBlock) {