suggest service

controller/suggest.js

@@ -1,4 +1,5 @@
 
+var service = { suggest: require('../service/suggest') };
 var geojsonify = require('../helper/geojsonify').suggest;
 
 function setup( backend, query ){
@@ -16,18 +17,11 @@ function setup( backend, query ){
     };
 
     // query backend
-    backend().client.suggest( cmd, function( err, data ){
+    service.suggest( backend, cmd, function( err, docs ){
 
-      var docs = [];
-
-      // handle backend errors
+      // error handler
       if( err ){ return next( err ); }
 
-      // map response to a valid FeatureCollection
-      if( data && Array.isArray( data.pelias ) && data.pelias.length ){
-        docs = data['pelias'][0].options || [];
-      }
-
       // convert docs to geojson
       var geojson = geojsonify( docs );
 

service/suggest.js

@@ -0,0 +1,28 @@
+
+/**
+
+  cmd can be any valid ES suggest command
+
+**/
+
+function service( backend, cmd, cb ){
+  
+  // query new backend
+  backend().client.suggest( cmd, function( err, data ){
+
+    // handle backend errors
+    if( err ){ return cb( err ); }
+
+    // map returned documents
+    var docs = [];
+    if( data && Array.isArray( data.pelias ) && data.pelias.length ){
+      docs = data['pelias'][0].options || [];
+    }
+
+    // fire callback
+    return cb( null, docs );
+  });
+
+}
+
+module.exports = service;