feat: support postman collection v2

Close #20

lib/index.js

@@ -22,9 +22,10 @@ async function postmanToOpenApi (input, output, { info = {}, defaultTag = 'defau
       element = tagged.shift()
     }
     const {
-      request: { url: { path, query, protocol, host }, method, body, description: rawDesc, header },
+      request: { url, method, body, description: rawDesc, header },
       name: summary, tag = defaultTag, event: events
     } = element
+    const { path, query, protocol, host } = scrapeURL(url)
     domains.add(calculateDomains(protocol, host))
     const joinedPath = calculatePath(path, pathDepth)
     if (!paths[joinedPath]) paths[joinedPath] = {}
@@ -250,6 +251,21 @@ function calculateDomains (protocol, hosts) {
   return protocol + '://' + hosts.join('.')
 }
 
+/** Support for collection V2 */
+function scrapeURL (url) {
+  if (typeof url === 'string' || url instanceof String) {
+    const objUrl = new URL(url)
+    return {
+      raw: url,
+      path: decodeURIComponent(objUrl.pathname).slice(1).split('/'),
+      query: [],
+      protocol: objUrl.protocol.slice(0, -1),
+      host: decodeURIComponent(objUrl.hostname).split('.')
+    }
+  }
+  return url
+}
+
 /* Parse domains from operations or options */
 function parseServers (domains, serversOpts) {
   let servers