update search function to use async/await syntax

Author: Lauren Connors

lib/search.js

@@ -10,48 +10,27 @@ let { req, reqJSON, makeCSV, throwError } = require('../utils')
 	limit
 }
 */
-module.exports = function(input, params = {}) {
-	req = req.bind(this)
-	reqJSON = reqJSON.bind(this)
+module.exports = async function(input, params = {}) {
+	req = req.bind(this);
+	reqJSON = reqJSON.bind(this);
 
-	return new Promise((resolve, reject) => {
-		if(typeof(input) === 'undefined')
-			reject(throwError('search()', 'any input'))
+	if(typeof(input) === 'undefined')
+		throw throwError('search()', 'any input')
 
-		let path = params.lore ? '/lore' : '/search'
+	let path = params.lore ? '/lore' : '/search'
 
-		switch(typeof(input)) {
-			// GET method
-			case 'string':
-				params.indexes = makeCSV(params.indexes)
+	switch(typeof(input)) {
+		// GET method
+		case 'string':
+			params.indexes = makeCSV(params.indexes);
+			return req(path, Object.assign(params, {"string": input}));
 
-				req(
-					path,
-					Object.assign(params, {string: input})
-				).then((res) => {
-					resolve(res)
-				}).catch((err) => {
-					reject(err)
-				})
-				break
+		// ElasticSearch JSON method
+		case 'object':
+			input.indexes = makeCSV(params.indexes);
+			return reqJSON(path, input);
 
-			// ElasticSearch JSON method
-			case 'object':
-				input.indexes = makeCSV(params.indexes)
-
-				reqJSON(
-					path,
-					input
-				).then((res) => {
-					resolve(res)
-				}).catch((err) => {
-					reject(err)
-				})
-				break
-
-			default:
-				reject(Error(`Unexpected input type for search: '${typeof(input)}'`))
-				break
-		}
-	})
+		default:
+			throw new Error(`Unexpected input type for search: '${typeof(input)}'`);
+	}
 }