Added _limit param. Example usage: _start=2&_limit=3 alternative to _start=2&_end=5.

src/router.js

@@ -58,11 +58,12 @@ module.exports = function(source) {
     var _end = req.query._end
     var _sort = req.query._sort
     var _order = req.query._order
-
+    var _limit = req.query._limit
     delete req.query._start
     delete req.query._end
     delete req.query._sort
     delete req.query._order
+    delete req.query._limit
 
     if (req.query.q) {
 
@@ -117,13 +118,13 @@ module.exports = function(source) {
     }
 
     // Slice result
-    if (_end) {
+    _start = _start || 0
     res.setHeader('X-Total-Count', array.length)
     res.setHeader('Access-Control-Expose-Headers', 'X-Total-Count')
-
+    if (_end) {
-      _start = _start || 0
-
       array = array.slice(_start, _end)
+    } else if (_limit) {
+      array = utils.limitArray(array, _start, _limit)
     }
 
     res.jsonp(array)

src/utils.js

@@ -66,8 +66,15 @@ function getRemovable(db) {
   return removable
 }
 
+//Returns limited array
+function limitArray(array, start, limit) {
+  var end = parseInt(start) + parseInt(limit)
+  return array.slice(start, end)
+}
+
 module.exports = {
   toNative: toNative,
   createId: createId,
-  getRemovable: getRemovable
+  getRemovable: getRemovable,
+  limitArray: limitArray
 }

test/index.js

@@ -1,7 +1,7 @@
 var request = require('supertest')
 var assert = require('assert')
 var jsonServer = require('../src/')
-
+var utils = require('../src/utils')
 describe('Server', function() {
 
   var server
@@ -28,6 +28,12 @@ describe('Server', function() {
       {id: 3, published: false, postId: 2},
       {id: 4, published: false, postId: 2},
       {id: 5, published: false, postId: 2},
+      {id: 6, published: false, postId: 2},
+      {id: 7, published: false, postId: 2},
+      {id: 8, published: false, postId: 2},
+      {id: 9, published: false, postId: 2},
+      {id: 10, published: false, postId: 2},
+      {id: 11, published: false, postId: 2}
     ]
 
     db.refs = [
@@ -147,6 +153,18 @@ describe('Server', function() {
     })
   })
 
+  describe('GET /:resource?_start=&_limit=', function() {
+    it('should respond with a limited array', function(done) {
+      request(server)
+        .get('/comments?_start=5&_limit=3')
+        .expect('Content-Type', /json/)
+        .expect('x-total-count', db.comments.length.toString())
+        .expect('Access-Control-Expose-Headers', 'X-Total-Count')
+        .expect(utils.limitArray(db.comments, 5, 3))
+        .expect(200, done)
+    })
+  })
+
   describe('GET /:parent/:parentId/:resource', function() {
     it('should respond with json and corresponding nested resources', function(done) {
       request(server)
@@ -154,7 +172,8 @@ describe('Server', function() {
         .expect('Content-Type', /json/)
         .expect([
           db.comments[0],
-          db.comments[1]
+          db.comments[1],
+
         ])
         .expect(200, done)
     })
@@ -279,7 +298,7 @@ describe('Server', function() {
         .end(function(err, res) {
           if (err) return done(err)
           assert.equal(db.posts.length, 1)
-          assert.equal(db.comments.length, 3)
+          assert.equal(db.comments.length, 9)
           done()
         })
     })

test/utils.js

@@ -46,4 +46,28 @@ describe('utils', function() {
     })
 
   })
+
+  describe('limitArray', function() {
+    it('should return limited array', function() {
+      var testArray = [
+        {id: 2, postId: 2},
+        {id: 3, postId: 4},
+        {id: 4, postId: 6},
+        {id: 5, postId: 8},
+        {id: 6, postId: 9},
+        {id: 7, postId: 10},
+        {id: 8, postId: 11},
+        {id: 9, postId: 12},
+        {id: 10, postId: 13},
+        {id: 11, postId: 14},
+        {id: 12, postId: 15},
+        {id: 13, postId: 16},
+        {id: 14, postId: 17},
+        {id: 15, postId: 18},
+        {id: 16, postId: 19}
+      ]
+      assert.deepEqual(utils.limitArray(testArray, 3, 3), testArray.slice(3, 6))
+      assert.deepEqual(utils.limitArray(testArray, 5, 3), testArray.slice(5, 8))
+    })
+  })
 })