Switch to coingecko.com

Context: https://github.com/atomiclabs/hyperdex/issues/464

README.md

@@ -6,7 +6,7 @@
 [![Coverage Status](https://coveralls.io/repos/github/lukechilds/coinlist/badge.svg?branch=master)](https://coveralls.io/github/lukechilds/coinlist?branch=master)
 [![npm](https://img.shields.io/npm/v/coinlist.svg)](https://www.npmjs.com/package/coinlist)
 
-List compiled from the coinmarketcap.com API. Importable as a raw JSON file or an array with helper methods.
+List compiled from the [coingecko.com API](https://www.coingecko.com/api/docs/v3). Importable as a raw JSON file or an array with helper methods.
 
 ## Install
 
@@ -22,12 +22,12 @@ const coins = require('coinlist');
 // coins is an array of coin objects:
 [
   {
-    id: 1,
+    id: 'bitcoin',
     symbol: 'BTC',
     name: 'Bitcoin'
   },
   {
-    id: 2,
+    id: 'litecoin',
     symbol: 'LTC',
     name: 'Litecoin'
   },
@@ -86,7 +86,7 @@ A single coin property to return instead of the entire coin object.
 
 Valid properties are:
 
-- `id` The CoinMarketCap API id.
+- `id` The CoinGecko API id.
 - `symbol` The ticker symbol.
 - `name` The readable name.
 
@@ -94,9 +94,8 @@ Valid properties are:
 
 ```
 $ yarn update
-Fetching latest currencies from the coinmarketcap.com API...
-Written 1633 coins to src/coins.json
-✨ Done in 0.85s.
+Fetching latest currencies from the coingecko.com API...
+Written 2306 coins to src/coins.json
 ```
 
 ## Contributing

test/index.js

@@ -18,7 +18,7 @@ test('coin object has expected properties', t => {
 
 test('coins.get searches symbols', t => {
 	const expectedBtc = {
-		id: 1,
+		id: 'bitcoin',
 		symbol: 'BTC',
 		name: 'Bitcoin'
 	};

update/index.js

@@ -6,13 +6,15 @@ const writeJsonFile = require('write-json-file');
 const jsonFile = 'src/coins.json';
 
 (async () => {
-	console.log(`Fetching latest currencies from the coinmarketcap.com API...`);
-	const response = await got('https://api.coinmarketcap.com/v2/listings/', { json: true });
-	const coins = response.body.data.map(coin => {
-		const { id, symbol, name } = coin;
-
-		return { id, symbol, name };
-	});
+	console.log(`Fetching latest currencies from the coingecko.com API...`);
+	const response = await got('https://api.coingecko.com/api/v3/coins/list', { json: true });
+	const coins = response.body
+		.map(coin => ({
+			id: coin.id,
+			symbol: coin.symbol.toUpperCase(),
+			name: coin.name
+		}))
+		.sort((a, b) => a.id.localeCompare(b.id));
 	await writeJsonFile(jsonFile, coins);
 	console.log(`Written ${coins.length} coins to ${jsonFile}`);
 })();