From 8198f9a1a0d6487eaa0d4e7ad4d04258d9ca66e6 Mon Sep 17 00:00:00 2001
From: Lukas <lukasstrassel@googlemail.com>
Date: Thu, 21 Nov 2024 19:17:30 +0100
Subject: [PATCH] fix: fallback to public rpcs (#35)

---
 dist/action.js  | 25 +++++++++++++++++++++++++
 dist/action.mjs | 25 +++++++++++++++++++++++++
 src/lib.ts      | 11 +++++++++++
 src/public.ts   | 15 +++++++++++++++
 4 files changed, 76 insertions(+)
 create mode 100644 src/public.ts

diff --git a/dist/action.js b/dist/action.js
index 29a5e4b..f272805 100644
--- a/dist/action.js
+++ b/dist/action.js
@@ -23205,6 +23205,21 @@ var ChainId = {
   zksync: zksync.id
 };
 
+// src/public.ts
+var publicRPCs = {
+  [ChainId.mainnet]: "https://eth.llamarpc.com",
+  [ChainId.polygon]: "https://polygon.llamarpc.com",
+  [ChainId.arbitrum]: "https://polygon.llamarpc.com",
+  [ChainId.base]: "https://base.llamarpc.com",
+  [ChainId.bnb]: "https://binance.llamarpc.com",
+  [ChainId.metis]: "https://andromeda.metis.io/?owner=1088",
+  [ChainId.gnosis]: "https://rpc.ankr.com/gnosis",
+  [ChainId.scroll]: "https://rpc.scroll.io",
+  [ChainId.zksync]: "https://mainnet.era.zksync.io",
+  [ChainId.fantom]: "https://rpc.ftm.tools",
+  [ChainId.avalanche]: "https://api.avax.network/ext/bc/C/rpc"
+};
+
 // src/lib.ts
 Object.values(ChainId).filter(
   (id) => networkMap[id]
@@ -23240,6 +23255,12 @@ function getAlchemyRPC(chainId, alchemyKey2) {
   }
   return `https://${alchemyId}.g.alchemy.com/v2/${alchemyKey2}`;
 }
+function getPublicRpc(chainId) {
+  const publicRpc = publicRPCs[chainId];
+  if (!publicRpc)
+    throw new Error(`No default public rpc for '${chainId}' configured.`);
+  return publicRpc;
+}
 var getRPCUrl = (chainId, options) => {
   if (!Object.values(ChainId).includes(chainId)) {
     throw new Error(
@@ -23256,6 +23277,10 @@ var getRPCUrl = (chainId, options) => {
     } catch (e) {
     }
   }
+  try {
+    return getPublicRpc(chainId);
+  } catch (e) {
+  }
 };
 
 // src/action.ts
diff --git a/dist/action.mjs b/dist/action.mjs
index 778c9b4..e8348c0 100644
--- a/dist/action.mjs
+++ b/dist/action.mjs
@@ -23203,6 +23203,21 @@ var ChainId = {
   zksync: zksync.id
 };
 
+// src/public.ts
+var publicRPCs = {
+  [ChainId.mainnet]: "https://eth.llamarpc.com",
+  [ChainId.polygon]: "https://polygon.llamarpc.com",
+  [ChainId.arbitrum]: "https://polygon.llamarpc.com",
+  [ChainId.base]: "https://base.llamarpc.com",
+  [ChainId.bnb]: "https://binance.llamarpc.com",
+  [ChainId.metis]: "https://andromeda.metis.io/?owner=1088",
+  [ChainId.gnosis]: "https://rpc.ankr.com/gnosis",
+  [ChainId.scroll]: "https://rpc.scroll.io",
+  [ChainId.zksync]: "https://mainnet.era.zksync.io",
+  [ChainId.fantom]: "https://rpc.ftm.tools",
+  [ChainId.avalanche]: "https://api.avax.network/ext/bc/C/rpc"
+};
+
 // src/lib.ts
 Object.values(ChainId).filter(
   (id) => networkMap[id]
@@ -23238,6 +23253,12 @@ function getAlchemyRPC(chainId, alchemyKey2) {
   }
   return `https://${alchemyId}.g.alchemy.com/v2/${alchemyKey2}`;
 }
+function getPublicRpc(chainId) {
+  const publicRpc = publicRPCs[chainId];
+  if (!publicRpc)
+    throw new Error(`No default public rpc for '${chainId}' configured.`);
+  return publicRpc;
+}
 var getRPCUrl = (chainId, options) => {
   if (!Object.values(ChainId).includes(chainId)) {
     throw new Error(
@@ -23254,6 +23275,10 @@ var getRPCUrl = (chainId, options) => {
     } catch (e) {
     }
   }
+  try {
+    return getPublicRpc(chainId);
+  } catch (e) {
+  }
 };
 
 // src/action.ts
diff --git a/src/lib.ts b/src/lib.ts
index 3b81825..295889a 100644
--- a/src/lib.ts
+++ b/src/lib.ts
@@ -1,5 +1,6 @@
 import { networkMap } from "./alchemyIds";
 import { ChainId, ChainList } from "./chainIds";
+import { publicRPCs } from "./public";
 
 type SupportedChainIds = (typeof ChainId)[keyof typeof ChainId];
 
@@ -53,6 +54,13 @@ export function getAlchemyRPC(chainId: SupportedChainIds, alchemyKey: string) {
   return `https://${alchemyId}.g.alchemy.com/v2/${alchemyKey}`;
 }
 
+export function getPublicRpc(chainId: SupportedChainIds) {
+  const publicRpc = publicRPCs[chainId as keyof typeof publicRPCs];
+  if (!publicRpc)
+    throw new Error(`No default public rpc for '${chainId}' configured.`);
+  return publicRpc;
+}
+
 type GetRPCUrlOptions = {
   alchemyKey?: string;
 };
@@ -89,6 +97,9 @@ export const getRPCUrl = (
       return getAlchemyRPC(chainId, options?.alchemyKey);
     } catch (e) {}
   }
+  try {
+    return getPublicRpc(chainId);
+  } catch (e) {}
 };
 
 export { ChainId, ChainList };
diff --git a/src/public.ts b/src/public.ts
new file mode 100644
index 0000000..7a1f158
--- /dev/null
+++ b/src/public.ts
@@ -0,0 +1,15 @@
+import { ChainId } from "./chainIds";
+
+export const publicRPCs = {
+  [ChainId.mainnet]: "https://eth.llamarpc.com",
+  [ChainId.polygon]: "https://polygon.llamarpc.com",
+  [ChainId.arbitrum]: "https://polygon.llamarpc.com",
+  [ChainId.base]: "https://base.llamarpc.com",
+  [ChainId.bnb]: "https://binance.llamarpc.com",
+  [ChainId.metis]: "https://andromeda.metis.io/?owner=1088",
+  [ChainId.gnosis]: "https://rpc.ankr.com/gnosis",
+  [ChainId.scroll]: "https://rpc.scroll.io",
+  [ChainId.zksync]: "https://mainnet.era.zksync.io",
+  [ChainId.fantom]: "https://rpc.ftm.tools",
+  [ChainId.avalanche]: "https://api.avax.network/ext/bc/C/rpc",
+} as const;