Community Plugin: This plugin is developed, tested, and maintained by a third-party contributor.
This is Kong plugins that accepts requests and response templates to completely transform requests and responses with Lua templates.
For questions, details or contributions, please reach us here.
Configuration Reference
This plugin is compatible with DB-less mode.
Example plugin configuration
Enable on a service
Enable on a route
Enable globally
The following examples provide some typical configurations for enabling
the kong-plugin-template-transformer
plugin on a
service.
Admin API
Kubernetes
Declarative (YAML)
Make the following request:
curl -X POST http://localhost:8001/services/SERVICE_NAME|SERVICE_ID/plugins \
--data "name=kong-plugin-template-transformer" \
--data 'config.request_template={ "email": "{{body.user}}", "password": "{{body.password}}" }' \
--data 'config.response_template={ "status": "{{status}}", "message": "{{body.message}}" }' \
--data 'config.hidden_fields=["password"]'
Replace SERVICE_NAME|SERVICE_ID
with the id
or name
of the service that this plugin configuration will target.
First, create a KongPlugin
resource:
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
name: kong-plugin-template-transformer-example
config:
request_template: '{ "email": "{{body.user}}", "password": "{{body.password}}" }'
response_template: '{ "status": "{{status}}", "message": "{{body.message}}" }'
hidden_fields: '["password"]'
plugin: kong-plugin-template-transformer
Next, apply the KongPlugin resource to a
service by annotating the
service as follows:
apiVersion: v1
kind: Service
metadata:
name: SERVICE_NAME|SERVICE_ID
labels:
app: SERVICE_NAME|SERVICE_ID
annotations:
konghq.com/plugins: kong-plugin-template-transformer-example
spec:
ports:
- port: 80
targetPort: 80
protocol: TCP
name: SERVICE_NAME|SERVICE_ID
selector:
app: SERVICE_NAME|SERVICE_ID
Replace SERVICE_NAME|SERVICE_ID
with the id
or name
of the service that this plugin configuration will target.
Note: The KongPlugin resource only needs to be defined once
and can be applied to any service, consumer, or route in the namespace. If you
want the plugin to be available cluster-wide, create the resource as a
KongClusterPlugin
instead of KongPlugin
.
Add this section to your declarative configuration file:
plugins:
- name: kong-plugin-template-transformer
service: SERVICE_NAME|SERVICE_ID
config:
request_template: '{ "email": "{{body.user}}", "password": "{{body.password}}" }'
response_template: '{ "status": "{{status}}", "message": "{{body.message}}" }'
hidden_fields: '["password"]'
Replace SERVICE_NAME|SERVICE_ID
with the id
or name
of the service that this plugin configuration will target.
The following examples provide some typical configurations for enabling
the kong-plugin-template-transformer
plugin on a
route.
Admin API
Kubernetes
Declarative (YAML)
Make the following request:
curl -X POST http://localhost:8001/routes/ROUTE_NAME|ROUTE_ID/plugins \
--data "name=kong-plugin-template-transformer" \
--data 'config.request_template={ "email": "{{body.user}}", "password": "{{body.password}}" }' \
--data 'config.response_template={ "status": "{{status}}", "message": "{{body.message}}" }' \
--data 'config.hidden_fields=["password"]'
Replace ROUTE_NAME|ROUTE_ID
with the id
or name
of the route that this plugin configuration will target.
First, create a KongPlugin
resource:
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
name: kong-plugin-template-transformer-example
config:
request_template: '{ "email": "{{body.user}}", "password": "{{body.password}}" }'
response_template: '{ "status": "{{status}}", "message": "{{body.message}}" }'
hidden_fields: '["password"]'
plugin: kong-plugin-template-transformer
Then, apply it to an ingress (route or routes)
by annotating the ingress as follows:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ROUTE_NAME|ROUTE_ID
annotations:
kubernetes.io/ingress.class: kong
konghq.com/plugins: kong-plugin-template-transformer-example
spec:
rules:
- host: examplehostname.com
http:
paths:
- path: /bar
backend:
service:
name: echo
port:
number: 80
Replace ROUTE_NAME|ROUTE_ID
with the id
or name
of the route that this plugin configuration will target.
Note: The KongPlugin resource only needs to be defined once
and can be applied to any service, consumer, or route in the namespace. If you
want the plugin to be available cluster-wide, create the resource as a
KongClusterPlugin
instead of KongPlugin
.
Add this section to your declarative configuration file:
plugins:
- name: kong-plugin-template-transformer
route: ROUTE_NAME
config:
request_template: '{ "email": "{{body.user}}", "password": "{{body.password}}" }'
response_template: '{ "status": "{{status}}", "message": "{{body.message}}" }'
hidden_fields: '["password"]'
Replace ROUTE_NAME|ROUTE_ID
with the id
or name
of the route that this plugin configuration
will target.
A plugin which is not associated to any service, route, or consumer is
considered global, and will be run on every request. Read the
Plugin Reference and the Plugin Precedence
sections for more information.
The following examples provide some typical configurations for enabling
the kong-plugin-template-transformer
plugin globally.
Admin API
Kubernetes
Declarative (YAML)
Make the following request:
curl -X POST http://localhost:8001/plugins/ \
--data "name=kong-plugin-template-transformer" \
--data 'config.request_template={ "email": "{{body.user}}", "password": "{{body.password}}" }' \
--data 'config.response_template={ "status": "{{status}}", "message": "{{body.message}}" }' \
--data 'config.hidden_fields=["password"]'
Create a KongClusterPlugin
resource and label it as global:
apiVersion: configuration.konghq.com/v1
kind: KongClusterPlugin
metadata:
name: <global-kong-plugin-template-transformer>
annotations:
kubernetes.io/ingress.class: kong
labels:
global: \"true\"
config:
request_template: '{ "email": "{{body.user}}", "password": "{{body.password}}" }'
response_template: '{ "status": "{{status}}", "message": "{{body.message}}" }'
hidden_fields: '["password"]'
plugin: kong-plugin-template-transformer
Add a plugins
entry in the declarative
configuration file:
plugins:
- name: kong-plugin-template-transformer
config:
request_template: '{ "email": "{{body.user}}", "password": "{{body.password}}" }'
response_template: '{ "status": "{{status}}", "message": "{{body.message}}" }'
hidden_fields: '["password"]'
Parameters
Here's a list of all the parameters which can be used in this plugin's configuration:
Form Parameter |
Description |
name
required
Type: string |
The name of the plugin, in this case kong-plugin-template-transformer . |
service.name or service.id
Type: string |
The name or ID of the service the plugin targets.
Set one of these parameters if adding the plugin to a service through the top-level /plugins endpoint.
Not required if using /services/SERVICE_NAME|SERVICE_ID/plugins . |
route.name or route.id
Type: string |
The name or ID of the route the plugin targets.
Set one of these parameters if adding the plugin to a route through the top-level /plugins endpoint.
Not required if using /routes/ROUTE_NAME|ROUTE_ID/plugins . |
enabled
Type: boolean
Default value: true |
Whether this plugin will be applied. |
api_id
Type: string |
The ID of the API the plugin targets.
Note: The API Entity is deprecated in favor of Services since CE 0.13.0 and EE 0.32. |
config.request_template
|
Describes the template to be used for the transformation.
Available nginx variables: headers, body, custom_data, route_groups, query_string.
|
config.response_template
|
Describes the template to be used for the transformation.
Available nginx variables: headers, body, status.
|
config.hidden_fields
|
Fields to hide in the nginx logs.
|