diff --git a/handler.go b/handler.go
index 299343dc5..464506ae8 100644
--- a/handler.go
+++ b/handler.go
@@ -1550,9 +1550,10 @@ func (h *Handler) handleGetDefinition(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	inputDef, _ := index.inputDefinitions[inputDefName]
-	inputInfo := InputDefinitionInfo{Frames: inputDef.frames, Fields: inputDef.fields}
-	if err := json.NewEncoder(w).Encode(getInputDefinitionResponse{
-		InputDefinition: inputInfo,
+	//inputInfo := InputDefinitionInfo{Frames: inputDef.frames, Fields: inputDef.fields}
+	if err := json.NewEncoder(w).Encode(InputDefinitionInfo{
+		Frames: inputDef.frames,
+		Fields: inputDef.fields,
 	}); err != nil {
 		h.logger().Printf("write status response error: %s", err)
 	}
@@ -1577,6 +1578,10 @@ func (h *Handler) handleDeleteDefinition(w http.ResponseWriter, r *http.Request)
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
+
+	if err := json.NewEncoder(w).Encode(postInputDefinitionResponse{}); err != nil {
+		h.logger().Printf("response encoding error: %s", err)
+	}
 }
 
 type InputFrame struct {
@@ -1584,10 +1589,6 @@ type InputFrame struct {
 	Options FrameOptions `json:"options,omitempty"`
 }
 
-type getInputDefinitionResponse struct {
-	InputDefinition InputDefinitionInfo `json:"input-definition"`
-}
-
 type InputDefinitionInfo struct {
 	Frames []InputFrame `json:"frames"`
 	Fields []Field      `json:"fields"`
diff --git a/handler_test.go b/handler_test.go
index 8c7f3a7e2..a89244d49 100644
--- a/handler_test.go
+++ b/handler_test.go
@@ -1067,16 +1067,11 @@ func MustReadAll(r io.Reader) []byte {
 	return buf
 }
 
-// Ensure handler can delete a frame.
+// Ensure handler can create a input definition.
 func TestHandler_CreateInputDefinition(t *testing.T) {
 	hldr := MustOpenHolder()
 	defer hldr.Close()
 	hldr.MustCreateIndexIfNotExists("i0", pilosa.IndexOptions{})
-
-	h := NewHandler()
-	h.Holder = hldr.Holder
-	h.Cluster = NewCluster(1)
-	w := httptest.NewRecorder()
 	inputBody := []byte(`
 			{
 			"frames":[{
@@ -1107,6 +1102,10 @@ func TestHandler_CreateInputDefinition(t *testing.T) {
 				}
 			]
 		}`)
+	h := NewHandler()
+	h.Holder = hldr.Holder
+	h.Cluster = NewCluster(1)
+	w := httptest.NewRecorder()
 	h.ServeHTTP(w, MustNewHTTPRequest("POST", "/index/i0/input-definition/input1", bytes.NewBuffer(inputBody)))
 	if w.Code != http.StatusOK {
 		t.Fatalf("unexpected status code: %d", w.Code)
@@ -1114,3 +1113,62 @@ func TestHandler_CreateInputDefinition(t *testing.T) {
 		t.Fatalf("unexpected body: %s", body)
 	}
 }
+
+// Ensure handler can delete a input definition.
+func TestHandler_DeleteInputDefinition(t *testing.T) {
+	hldr := MustOpenHolder()
+	defer hldr.Close()
+	index := hldr.MustCreateIndexIfNotExists("i0", pilosa.IndexOptions{})
+
+	frames := pilosa.InputFrame{Name: "f", Options: pilosa.FrameOptions{RowLabel: "row"}}
+	action := pilosa.Action{Frame: "f", ValueDestination: "map", ValueMap: map[string]uint64{"Green": 1}}
+	fields := pilosa.Field{Name: "id", PrimaryKey: true, Actions: []pilosa.Action{action}}
+	_, err := index.CreateInputDefinition("test", []pilosa.InputFrame{frames}, []pilosa.Field{fields})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	h := NewHandler()
+	h.Holder = hldr.Holder
+	h.Cluster = NewCluster(1)
+	w := httptest.NewRecorder()
+	h.ServeHTTP(w, MustNewHTTPRequest("DELETE", "/index/i0/input-definition/test", strings.NewReader("")))
+	if w.Code != http.StatusOK {
+		t.Fatalf("unexpected status code: %d", w.Code)
+	} else if body := w.Body.String(); body != `{}`+"\n" {
+		t.Fatalf("unexpected body: %s", body)
+	} else if index.InputDefinition("test") != nil {
+		t.Fatalf("unexpected result: %s", index.InputDefinition("test"))
+	}
+}
+
+// Return existing input definition
+func TestHandler_GetInputDefinition(t *testing.T) {
+	hldr := MustOpenHolder()
+	defer hldr.Close()
+	index := hldr.MustCreateIndexIfNotExists("i0", pilosa.IndexOptions{})
+
+	frames := pilosa.InputFrame{Name: "f", Options: pilosa.FrameOptions{RowLabel: "row"}}
+	action := pilosa.Action{Frame: "f", ValueDestination: "map", ValueMap: map[string]uint64{"Green": 1}}
+	fields := pilosa.Field{Name: "id", PrimaryKey: true, Actions: []pilosa.Action{action}}
+	inputDef, err := index.CreateInputDefinition("test", []pilosa.InputFrame{frames}, []pilosa.Field{fields})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	response := &pilosa.InputDefinitionInfo{Frames: inputDef.Frames(), Fields: inputDef.Fields()}
+	expect, err := json.Marshal(response)
+	if err != nil {
+		t.Fatal(err)
+	}
+	h := NewHandler()
+	h.Holder = hldr.Holder
+	h.Cluster = NewCluster(1)
+	w := httptest.NewRecorder()
+	h.ServeHTTP(w, MustNewHTTPRequest("GET", "/index/i0/input-definition/test", strings.NewReader("")))
+	if w.Code != http.StatusOK {
+		t.Fatalf("unexpected status code: %d", w.Code)
+	} else if body := w.Body.String(); body != string(expect)+"\n" {
+		t.Fatalf("unexpected body: %s, expect: %s", body, string(expect))
+	}
+}
diff --git a/index.go b/index.go
index 58bb8adaf..4dc40501b 100644
--- a/index.go
+++ b/index.go
@@ -662,14 +662,14 @@ func (i *Index) newInputDefinition(path, name string) (*InputDefinition, error)
 	return f, nil
 }
 
-// DeleteFrame removes a frame from the index.
+// DeleteInputDefinition removes a input definition from the index.
 func (i *Index) DeleteInputDefinition(name string) error {
 	i.mu.Lock()
 	defer i.mu.Unlock()
 
 	// Ignore if input definition doesn't exist.
-	f := i.inputDefinition(name)
-	if f == nil {
+	inputDef := i.inputDefinition(name)
+	if inputDef == nil {
 		return nil
 	}
 
diff --git a/input_definition.go b/input_definition.go
index 31a354a3b..baa8bf215 100644
--- a/input_definition.go
+++ b/input_definition.go
@@ -31,19 +31,10 @@ func NewInputDefinition(path, index, name string) (*InputDefinition, error) {
 	}, nil
 }
 
-// Name returns the name of input definition was initialized with.
-func (i *InputDefinition) Name() string { return i.name }
-
-// Index returns the index name of the input definition was initialized with.
-func (i *InputDefinition) Index() string { return i.index }
-
-// Path returns the path of the input definition was initialized with.
-func (i *InputDefinition) Path() string { return i.path }
-
 // Frames returns frames of the input definition was initialized with.
 func (i *InputDefinition) Frames() []InputFrame { return i.frames }
 
-// Fields returns frames of the input definition was initialized with.
+// Fields returns fields of the input definition was initialized with.
 func (i *InputDefinition) Fields() []Field { return i.fields }
 
 func (i *InputDefinition) Open() error {
diff --git a/input_definition_test.go b/input_definition_test.go
index 191b5d182..5fd78c60c 100644
--- a/input_definition_test.go
+++ b/input_definition_test.go
@@ -1 +1,38 @@
-package pilosa
+// Copyright 2017 Pilosa Corp.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package pilosa_test
+
+import (
+	"github.com/pilosa/pilosa"
+	"testing"
+)
+
+func TestInputDefinition_Open(t *testing.T) {
+	index := MustOpenIndex()
+	defer index.Close()
+
+	// Create Input Definition.
+	frames := pilosa.InputFrame{Name: "f", Options: pilosa.FrameOptions{RowLabel: "row"}}
+	action := pilosa.Action{Frame: "f", ValueDestination: "map", ValueMap: map[string]uint64{"Green": 1}}
+	fields := pilosa.Field{Name: "id", PrimaryKey: true, Actions: []pilosa.Action{action}}
+	inputDef, err := index.CreateInputDefinition("test", []pilosa.InputFrame{frames}, []pilosa.Field{fields})
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = inputDef.Open()
+	if err != nil {
+		t.Fatal(err)
+	}
+}