Initial commit

.gitignore

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+chains.json
+node_modules

.prettierrc.json

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+{
+  "semi": false,
+  "trailingComma": "none",
+  "singleQuote": true,
+  "printWidth": 80,
+  "tabWidth": 2,
+  "arrowParens": "avoid"
+}

README.md

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+
+### Usage
+```js
+import chains, { NetworkId, NetworkName } from 'eth-chains'
+
+chains.getById(NetworkId.EthereumMainnet)
+chains.getByName(NetworkName.EthereumMainnet)
+chains.get() // pass in a networkId or a networkName
+
+console.log(NetworkId.Ethereum.Mainnet) // 1
+console.log(NetworkId.BinanceSmartChain.Mainnet) // 56
+
+console.log(NetworkName.Ethereum.Mainnet) // "Ethereum Mainnet"
+```
+
+
+TODO:
+- [ ] Add webhook that watches the chains repo and triggers an update to this package whenever that repo gets updated
+    - [ ] Add check in the deploy script to make sure that the types are correct before publishing
+- [ ] Add Tests
+    - [ ] Once quicktype is added, test with different chains.json objects to make sure it can handle new types
+- [ ] Use [quicktype](https://github.com/quicktype/quicktype) to autogen type from json
+- [ ] Autogen Chain Id enum
+- [x] Autogen Chain Name enum

index.ts

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+// import chains, { NetworkName } from './src'
+import jsonToTs from 'json-to-ts';
+import chains from './chains.json'
+console.log(jsonToTs(chains[0]))
+// console.log(chains.get(NetworkName['Ether-1']))

package.json

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+{
+  "name": "eth-chains",
+  "version": "0.1.0",
+  "description": "Helper module for getting Ethereum network info",
+  "main": "index.ts",
+  "author": "Taylor Dawson",
+  "license": "WTFPL",
+  "private": false,
+  "scripts": {
+    "build": "ts-node src/build.ts",
+    "format": "prettier --write src/"
+  },
+  "dependencies": {
+    "@types/node": "^14.14.37",
+    "got": "^11.8.2",
+    "json-to-ts": "^1.7.0",
+    "typescript": "^4.2.3"
+  },
+  "devDependencies": {
+    "@types/prettier": "^2.2.3",
+    "prettier": "^2.2.1",
+    "ts-node": "^9.1.1"
+  }
+}

src/build.ts

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+import got from 'got'
+import { promises as fs } from 'fs'
+import { inspect } from 'util'
+import { format } from 'prettier'
+import { Options } from 'prettier'
+
+import { Chain } from './types'
+import { capitalize } from './helpers'
+import prettierOptions from '../.prettierrc.json'
+
+const formatterOptions = {
+  ...(prettierOptions as Options),
+  parser: 'typescript'
+}
+
+const getEnum = (chainName: string) => {
+  let enumKey = capitalize(chainName.replace(/\s/g, ''))
+  // If the key starts with a number or contains ',' or '.' then wrap it in quotes
+  enumKey = !!chainName.match(/^\d|[\-\.]/) ? `'${enumKey}'` : enumKey
+  return `${enumKey} = '${chainName}'`
+}
+
+const generateEnumFile = async (chains: Chain[]) => {
+  fs.writeFile(
+    './src/enums.ts',
+    format(
+      `export enum NetworkName {${chains
+        .map(chain => `${getEnum(chain.name)}`)
+        .join(',\n')}}`,
+      { ...(prettierOptions as Options), parser: 'typescript' }
+    )
+  )
+}
+
+const generateChainsFile = async () => {
+  const chains: Chain[] = await got(
+    'https://chainid.network/chains.json'
+  ).json()
+
+  //await generateEnumFile(chains)
+
+  const chainsJs = chains
+    .map(chain => `${chain.chainId}: ${inspect(chain)}`)
+    .join(',\n')
+
+  fs.writeFile(
+    './src/chains.ts',
+    format(
+      `import { Chains } from "./types"\nexport const chains: Chains = {\n${chainsJs}\n}`,
+      formatterOptions
+    )
+  )
+}
+
+generateChainsFile()