Initial commit

express/utils/index.js

@@ -0,0 +1,10 @@
+const utils = {}
+
+
+utils.compose = (...fns) => (initialVal) => fns.reduceRight((val, fn) => fn(val), initialVal)
+utils.pipe = (...fns) => (initialVal) => fns.reduce((val, fn) => fn(val), initialVal)
+
+utils.composeAsync = (...fns) => input => fns.reduceRight((chain, func) => chain.then(func), Promise.resolve(input));
+utils.pipeAsync = (...fns) => input => fns.reduce((chain, func) => chain.then(func), Promise.resolve(input));
+
+module.exports = utils