diff --git a/openstack/common/extensions/requests.go b/openstack/common/extensions/requests.go
index b6f371a..0b71085 100755
--- a/openstack/common/extensions/requests.go
+++ b/openstack/common/extensions/requests.go
@@ -8,9 +8,7 @@
 // Get retrieves information for a specific extension using its alias.
 func Get(c *gophercloud.ServiceClient, alias string) GetResult {
 	var res GetResult
-	_, res.Err = c.Request("GET", ExtensionURL(c, alias), gophercloud.RequestOpts{
-		JSONResponse: &res.Body,
-	})
+	_, res.Err = c.Get(ExtensionURL(c, alias), &res.Body, nil)
 	return res
 }
 
diff --git a/openstack/identity/v2/extensions/admin/roles/requests.go b/openstack/identity/v2/extensions/admin/roles/requests.go
index 619bf3b..9a33314 100644
--- a/openstack/identity/v2/extensions/admin/roles/requests.go
+++ b/openstack/identity/v2/extensions/admin/roles/requests.go
@@ -19,7 +19,7 @@
 // ID is a required argument.
 func AddUserRole(client *gophercloud.ServiceClient, tenantID, userID, roleID string) UserRoleResult {
 	var result UserRoleResult
-	_, result.Err = client.Request("PUT", userRoleURL(client, tenantID, userID, roleID), gophercloud.RequestOpts{})
+	_, result.Err = client.Put(userRoleURL(client, tenantID, userID, roleID), nil, nil, nil)
 	return result
 }
 
@@ -28,6 +28,6 @@
 // tenant ID is a required argument.
 func DeleteUserRole(client *gophercloud.ServiceClient, tenantID, userID, roleID string) UserRoleResult {
 	var result UserRoleResult
-	_, result.Err = client.Request("DELETE", userRoleURL(client, tenantID, userID, roleID), gophercloud.RequestOpts{})
+	_, result.Err = client.Delete(userRoleURL(client, tenantID, userID, roleID), nil)
 	return result
 }
diff --git a/openstack/identity/v2/tokens/requests.go b/openstack/identity/v2/tokens/requests.go
index db1ac82..efa054f 100644
--- a/openstack/identity/v2/tokens/requests.go
+++ b/openstack/identity/v2/tokens/requests.go
@@ -75,10 +75,8 @@
 	}
 
 	var result CreateResult
-	_, result.Err = client.Request("POST", CreateURL(client), gophercloud.RequestOpts{
-		JSONBody:     &request,
-		JSONResponse: &result.Body,
-		OkCodes:      []int{200, 203},
+	_, result.Err = client.Post(CreateURL(client), request, &result.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 203},
 	})
 	return result
 }
diff --git a/openstack/identity/v2/users/requests.go b/openstack/identity/v2/users/requests.go
index 8aa1a20..88be45e 100644
--- a/openstack/identity/v2/users/requests.go
+++ b/openstack/identity/v2/users/requests.go
@@ -90,10 +90,8 @@
 		return res
 	}
 
-	_, res.Err = client.Request("POST", rootURL(client), gophercloud.RequestOpts{
-		JSONResponse: &res.Body,
-		JSONBody:     reqBody,
-		OkCodes:      []int{200, 201},
+	_, res.Err = client.Post(rootURL(client), reqBody, &res.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201},
 	})
 
 	return res
@@ -102,11 +100,7 @@
 // Get requests details on a single user, either by ID.
 func Get(client *gophercloud.ServiceClient, id string) GetResult {
 	var result GetResult
-
-	_, result.Err = client.Request("GET", ResourceURL(client, id), gophercloud.RequestOpts{
-		JSONResponse: &result.Body,
-	})
-
+	_, result.Err = client.Get(ResourceURL(client, id), &result.Body, nil)
 	return result
 }
 
@@ -144,22 +138,17 @@
 // Update is the operation responsible for updating exist users by their UUID.
 func Update(client *gophercloud.ServiceClient, id string, opts UpdateOptsBuilder) UpdateResult {
 	var result UpdateResult
-
-	_, result.Err = client.Request("PUT", ResourceURL(client, id), gophercloud.RequestOpts{
-		JSONResponse: &result.Body,
-		JSONBody:     opts.ToUserUpdateMap(),
-		OkCodes:      []int{200},
+	reqBody := opts.ToUserUpdateMap()
+	_, result.Err = client.Put(ResourceURL(client, id), reqBody, &result.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200},
 	})
-
 	return result
 }
 
 // Delete is the operation responsible for permanently deleting an API user.
 func Delete(client *gophercloud.ServiceClient, id string) DeleteResult {
 	var result DeleteResult
-
-	_, result.Err = client.Request("DELETE", ResourceURL(client, id), gophercloud.RequestOpts{})
-
+	_, result.Err = client.Delete(ResourceURL(client, id), nil)
 	return result
 }
 
diff --git a/openstack/identity/v3/endpoints/requests.go b/openstack/identity/v3/endpoints/requests.go
index 7591de0..99a495d 100644
--- a/openstack/identity/v3/endpoints/requests.go
+++ b/openstack/identity/v3/endpoints/requests.go
@@ -56,11 +56,7 @@
 	reqBody.Endpoint.Region = gophercloud.MaybeString(opts.Region)
 
 	var result CreateResult
-	_, result.Err = client.Request("POST", listURL(client), gophercloud.RequestOpts{
-		JSONBody:     &reqBody,
-		JSONResponse: &result.Body,
-		OkCodes:      []int{201},
-	})
+	_, result.Err = client.Post(listURL(client), reqBody, &result.Body, nil)
 	return result
 }
 
@@ -122,6 +118,6 @@
 // Delete removes an endpoint from the service catalog.
 func Delete(client *gophercloud.ServiceClient, endpointID string) DeleteResult {
 	var res DeleteResult
-	_, res.Err = client.Request("DELETE", endpointURL(client, endpointID), gophercloud.RequestOpts{})
+	_, res.Err = client.Delete(endpointURL(client, endpointID), nil)
 	return res
 }
diff --git a/openstack/identity/v3/services/requests.go b/openstack/identity/v3/services/requests.go
index a93cfe7..3ee924f 100644
--- a/openstack/identity/v3/services/requests.go
+++ b/openstack/identity/v3/services/requests.go
@@ -18,10 +18,7 @@
 	req := request{Type: serviceType}
 
 	var result CreateResult
-	_, result.Err = client.Request("POST", listURL(client), gophercloud.RequestOpts{
-		JSONBody:     &req,
-		JSONResponse: &result.Body,
-	})
+	_, result.Err = client.Post(listURL(client), req, &result.Body, nil)
 	return result
 }
 
@@ -50,9 +47,7 @@
 // Get returns additional information about a service, given its ID.
 func Get(client *gophercloud.ServiceClient, serviceID string) GetResult {
 	var result GetResult
-	_, result.Err = client.Request("GET", serviceURL(client, serviceID), gophercloud.RequestOpts{
-		JSONResponse: &result.Body,
-	})
+	_, result.Err = client.Get(serviceURL(client, serviceID), &result.Body, nil)
 	return result
 }
 
@@ -77,6 +72,6 @@
 // It either deletes all associated endpoints, or fails until all endpoints are deleted.
 func Delete(client *gophercloud.ServiceClient, serviceID string) DeleteResult {
 	var res DeleteResult
-	_, res.Err = client.Request("DELETE", serviceURL(client, serviceID), gophercloud.RequestOpts{})
+	_, res.Err = client.Delete(serviceURL(client, serviceID), nil)
 	return res
 }
diff --git a/openstack/identity/v3/tokens/requests.go b/openstack/identity/v3/tokens/requests.go
index ecbe10e..d449ca3 100644
--- a/openstack/identity/v3/tokens/requests.go
+++ b/openstack/identity/v3/tokens/requests.go
@@ -235,10 +235,7 @@
 
 	var result CreateResult
 	var response *http.Response
-	response, result.Err = c.Request("POST", tokenURL(c), gophercloud.RequestOpts{
-		JSONBody:     &req,
-		JSONResponse: &result.Body,
-	})
+	response, result.Err = c.Post(tokenURL(c), req, &result.Body, nil)
 	if result.Err != nil {
 		return result
 	}
@@ -250,10 +247,9 @@
 func Get(c *gophercloud.ServiceClient, token string) GetResult {
 	var result GetResult
 	var response *http.Response
-	response, result.Err = c.Request("GET", tokenURL(c), gophercloud.RequestOpts{
-		MoreHeaders:  subjectTokenHeaders(c, token),
-		JSONResponse: &result.Body,
-		OkCodes:      []int{200, 203},
+	response, result.Err = c.Get(tokenURL(c), &result.Body, &gophercloud.RequestOpts{
+		MoreHeaders: subjectTokenHeaders(c, token),
+		OkCodes:     []int{200, 203},
 	})
 	if result.Err != nil {
 		return result
@@ -278,7 +274,7 @@
 // Revoke immediately makes specified token invalid.
 func Revoke(c *gophercloud.ServiceClient, token string) RevokeResult {
 	var res RevokeResult
-	_, res.Err = c.Request("DELETE", tokenURL(c), gophercloud.RequestOpts{
+	_, res.Err = c.Delete(tokenURL(c), &gophercloud.RequestOpts{
 		MoreHeaders: subjectTokenHeaders(c, token),
 	})
 	return res