generate web3icons

README.md

@@ -31,12 +31,13 @@ Add the chain definition to the `./_data/chains/` directory.
 
 ```json
 {
-    "id": "ethereum",
-    "name": "Ethereum Mainnet",
-    "icon": "ethereum",
-    "block": "ethereum",
-    "chainId": 1,
-    "networkId": 1
+  "id": "mainnet",
+  "name": "Ethereum",
+  "namespace": "eip155",
+  "block": "ethereum",
+  "genesis_hash": "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3",
+  "chain_id": 1,
+  "network_id": 1
 }
 ```
 
@@ -51,13 +52,13 @@ Add the provider definition to the `./_data/providers/` directory.
     "rpc": [],
     "firehose": [
         {
-            "id": "ethereum",
+            "id": "mainnet",
             "url": "https://mainnet.eth.streamingfast.io:443"
         }
     ],
     "substreams": [
         {
-            "id": "ethereum",
+            "id": "mainnet",
             "url": "https://mainnet.eth.streamingfast.io:443"
         }
     ]
@@ -93,3 +94,12 @@ Provide token SVG to <https://tokenicons.io> and add matching Graph ID to `_data
 - [Pinax Chains](https://github.com/pinax-network/chains)
 - [Ethereum ChainID](https://github.com/ethereum-lists/chains) (<https://chainid.network/>)
 - [DefiLlama ChainList](https://github.com/DefiLlama/chainlist/tree/main) (<https://chainlist.org/>)
+
+## CAIP-2
+
+- https://namespaces.chainagnostic.org/solana/caip2
+- https://namespaces.chainagnostic.org/bip122/caip2
+- https://namespaces.chainagnostic.org/antelope/caip2
+- https://namespaces.chainagnostic.org/eip155/caip2
+- https://namespaces.chainagnostic.org/cosmos/caip2
+- https://namespaces.chainagnostic.org/starknet/README

__tests__/caip2.spec.ts

@@ -0,0 +1,7 @@
+import { expect, test, it } from "bun:test";
+
+test("caip2", async () => {
+    it("Dummy max length(8 + 1 + 32 = 41 chars / bytes)", async () => {
+        expect(true).toBeTrue();
+    });
+});

__tests__/typespec.spec.ts

@@ -1,6 +1,6 @@
 import { expect, test, it } from "bun:test";
 
-test("typespec chains", async () => {
+test("typespec", async () => {
     it("typespec does not match", async () => {
         expect(true).toBeTrue();
     });

__tests__/web3icons.ts

@@ -0,0 +1,7 @@
+import { expect, test, it } from "bun:test";
+
+test("web3icons", async () => {
+    it("web3icons does not exists", async () => {
+        expect(true).toBeTrue();
+    });
+});

_data/chains/arbitrum-one.json

@@ -1,5 +1,9 @@
 {
   "id": "arbitrum-one",
   "name": "Arbitrum One",
-  "block": "ethereum"
+  "namespace": "eip155",
+  "block": "ethereum",
+  "genesis_hash": "0x7ee576b35482195fc49205cec9af72ce14f003b9ae69f6ba0faef4514be8b442",
+  "chain_id": 42161,
+  "network_id": 42161
 }

_data/chains/bitcoin.json

@@ -0,0 +1,8 @@
+{
+  "id": "bitcoin",
+  "name": "Bitcoin",
+  "namespace": "bip122",
+  "block": "bitcoin",
+  "genesis_hash": "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f",
+  "chain_id": "000000000019d6689c085ae165831e93"
+}

_data/chains/mainnet.json

@@ -1,5 +1,9 @@
 {
   "id": "mainnet",
   "name": "Ethereum",
-  "block": "ethereum"
+  "namespace": "eip155",
+  "block": "ethereum",
+  "genesis_hash": "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3",
+  "chain_id": 1,
+  "network_id": 1
 }

_data/chains/solana.json

@@ -0,0 +1,8 @@
+{
+  "id": "solana",
+  "name": "Solana",
+  "namespace": "solana",
+  "block": "solana",
+  "genesis_hash": "5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d",
+  "chain_id": "5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
+}

scripts/generate/icons.ts

@@ -0,0 +1,52 @@
+import fs from "fs";
+import path from "path";
+import web3icons from '../download/web3icons.json';
+
+const base = path.join(__dirname, "..", "..", "_data");
+
+// read & parse chains
+const ids: Set<string> = new Set();
+const chain_ids: Map<number, string> = new Map();
+const names: Map<string, string> = new Map();
+for (const filename of fs.readdirSync(path.join(base, "chains"))) {
+    const id = path.parse(filename).name;
+    const json = JSON.parse(fs.readFileSync(path.join(base, "chains", filename), "utf-8"));
+    chain_ids.set(json.chain_id, id);
+    names.set(json.name, id);
+    ids.add(id);
+}
+
+async function download(web3icon: typeof web3icons[0], id: string) {
+    for (const variant of web3icon.variants) {
+        const url = `https://raw.githubusercontent.com/0xa3k5/web3icons/refs/heads/main/packages/core/src/svgs/networks/${variant}/${web3icon.id}.svg`;
+        const filename = path.join(base, "icons", variant, `${id}.svg`);
+        if (fs.existsSync(filename)) continue; // skip if already exists
+        const response = await fetch(url);
+        if (response.ok) {
+            const svg = await response.text();
+            fs.writeFileSync(filename, svg);
+        }
+    }
+}
+
+function getId(web3icon: typeof web3icons[0]) {
+    if (ids.has(web3icon.id)) {
+        return web3icon.id;
+    }
+    // by chain_id
+    if (web3icon.chainId) {
+        const id = chain_ids.get(web3icon.chainId);
+        return id;
+    }
+    // by name
+    const id = names.get(web3icon.name);
+    return id;
+}
+
+// download web3icons if match by chain_id or name
+for (const web3icon of web3icons) {
+    const id = getId(web3icon);
+    if (id) {
+        await download(web3icon, id);
+    }
+}