Support wildcard queries

Author: sean-roberts

index.js

@@ -1,8 +1,14 @@
 const flatfile = require('flat-file-db')
 const promisify = require('then-flat-file-db')
+const escapeRegexp = require('escape-regex')
 
 const db = promisify(flatfile.sync(process.env.DB_NAME || 'views.db'))
 
+const keyRegex = (str) => {
+  str = str.split('*').map( s => escapeRegexp(s)).join('*')
+  return new RegExp('^' + str.replace('*','.*'))
+}
+
 module.exports = {
   put: db.put.bind(db),
   has: (key) => Promise.resolve(db.has(key)),
@@ -27,7 +33,9 @@ module.exports = {
 	// Get all values starting with a certain pathname and filter their views
   getAll: async function getAll(options) {
     const data = {}
-    const keys = (await module.exports.keys()).filter(key => key.startsWith(options.pathname))
+    const keys = (await module.exports.keys()).filter((key) => {
+      return options.wildcard ? key.match(keyRegex(options.pathname)) : key.startsWith(options.pathname)
+    })
 
 		for (let key of keys) {
 			data[key] = await module.exports.get(key, { before: options.before, after: options.after })

package.json

@@ -24,6 +24,7 @@
   },
   "homepage": "https://github.com/mxstbr/micro-analytics-adapter-flat-file-db#readme",
   "dependencies": {
+    "escape-regex": "^1.0.7",
     "flat-file-db": "^1.0.0",
     "then-flat-file-db": "^1.0.0"
   },