Response Transformer Advanced: Replace the JSON body - Plugin

Replace the JSON body

Configure the plugin to replace the entire JSON body for 500 responses.

Set up the plugin

Add this section to your declarative configuration file:

_format_version: "3.0"
plugins:
  - name: response-transformer-advanced
    config:
      replace:
        body: '{"error": "internal server error"}'
        if_status:
        - '500'

Make the following request:

curl -i -X POST http://localhost:8001/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
controlPlaneId: The id of the control plane.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongClusterPlugin
metadata:
  name: response-transformer-advanced
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
  labels:
    global: 'true'
config:
  replace:
    body: '{'error': 'internal server error'}'
    if_status:
    - '500'
plugin: response-transformer-advanced
" | kubectl apply -f -

Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_response_transformer_advanced" "my_response_transformer_advanced" {
  enabled = true

  config = {

    replace = {
      body = "{\"error\": \"internal server error\"}"
      if_status = ["500"]
    }
  }

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
}

Add this section to your declarative configuration file:

_format_version: "3.0"
plugins:
  - name: response-transformer-advanced
    service: serviceName|Id
    config:
      replace:
        body: '{"error": "internal server error"}'
        if_status:
        - '500'

Make sure to replace the following placeholders with your own values:

serviceName|Id: The id or name of the service the plugin configuration will target.

Make the following request:

curl -i -X POST http://localhost:8001/services/{serviceName|Id}/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

serviceName|Id: The id or name of the service the plugin configuration will target.

Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/services/{serviceId}/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
controlPlaneId: The id of the control plane.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
serviceId: The id of the service the plugin configuration will target.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: response-transformer-advanced
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
config:
  replace:
    body: '{'error': 'internal server error'}'
    if_status:
    - '500'
plugin: response-transformer-advanced
" | kubectl apply -f -

Next, apply the KongPlugin resource by annotating the service resource:

kubectl annotate -n kong service SERVICE_NAME konghq.com/plugins=response-transformer-advanced

Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_response_transformer_advanced" "my_response_transformer_advanced" {
  enabled = true

  config = {

    replace = {
      body = "{\"error\": \"internal server error\"}"
      if_status = ["500"]
    }
  }

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
  service = {
    id = konnect_gateway_service.my_service.id
  }
}

Add this section to your declarative configuration file:

_format_version: "3.0"
plugins:
  - name: response-transformer-advanced
    route: routeName|Id
    config:
      replace:
        body: '{"error": "internal server error"}'
        if_status:
        - '500'

Make sure to replace the following placeholders with your own values:

routeName|Id: The id or name of the route the plugin configuration will target.

Make the following request:

curl -i -X POST http://localhost:8001/routes/{routeName|Id}/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

routeName|Id: The id or name of the route the plugin configuration will target.

Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/routes/{routeId}/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
controlPlaneId: The id of the control plane.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
routeId: The id of the route the plugin configuration will target.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: response-transformer-advanced
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
config:
  replace:
    body: '{'error': 'internal server error'}'
    if_status:
    - '500'
plugin: response-transformer-advanced
" | kubectl apply -f -

Next, apply the KongPlugin resource by annotating the httproute or ingress resource:

kubectl annotate -n kong httproute  konghq.com/plugins=response-transformer-advanced

kubectl annotate -n kong ingress  konghq.com/plugins=response-transformer-advanced

Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_response_transformer_advanced" "my_response_transformer_advanced" {
  enabled = true

  config = {

    replace = {
      body = "{\"error\": \"internal server error\"}"
      if_status = ["500"]
    }
  }

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
  route = {
    id = konnect_gateway_route.my_route.id
  }
}

Add this section to your declarative configuration file:

_format_version: "3.0"
plugins:
  - name: response-transformer-advanced
    consumer: consumerName|Id
    config:
      replace:
        body: '{"error": "internal server error"}'
        if_status:
        - '500'

Make sure to replace the following placeholders with your own values:

consumerName|Id: The id or name of the consumer the plugin configuration will target.

Make the following request:

curl -i -X POST http://localhost:8001/consumers/{consumerName|Id}/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

consumerName|Id: The id or name of the consumer the plugin configuration will target.

Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/consumers/{consumerId}/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
controlPlaneId: The id of the control plane.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
consumerId: The id of the consumer the plugin configuration will target.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: response-transformer-advanced
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
config:
  replace:
    body: '{'error': 'internal server error'}'
    if_status:
    - '500'
plugin: response-transformer-advanced
" | kubectl apply -f -

Next, apply the KongPlugin resource by annotating the KongConsumer resource:

kubectl annotate -n kong  CONSUMER_NAME konghq.com/plugins=response-transformer-advanced

Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_response_transformer_advanced" "my_response_transformer_advanced" {
  enabled = true

  config = {

    replace = {
      body = "{\"error\": \"internal server error\"}"
      if_status = ["500"]
    }
  }

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
  consumer = {
    id = konnect_gateway_consumer.my_consumer.id
  }
}

Add this section to your declarative configuration file:

_format_version: "3.0"
plugins:
  - name: response-transformer-advanced
    consumer_group: consumerGroupName|Id
    config:
      replace:
        body: '{"error": "internal server error"}'
        if_status:
        - '500'

Make sure to replace the following placeholders with your own values:

consumerGroupName|Id: The id or name of the consumer group the plugin configuration will target.

Make the following request:

curl -i -X POST http://localhost:8001/consumer_groups/{consumerGroupName|Id}/plugins/ \
    --header "Accept: application/json" \
    --header "Content-Type: application/json" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

consumerGroupName|Id: The id or name of the consumer group the plugin configuration will target.

Make the following request:

curl -X POST https://{region}.api.konghq.com/v2/control-planes/{controlPlaneId}/core-entities/consumer_groups/{consumerGroupId}/plugins/ \
    --header "accept: application/json" \
    --header "Content-Type: application/json" \
    --header "Authorization: Bearer $KONNECT_TOKEN" \
    --data '
    {
      "name": "response-transformer-advanced",
      "config": {
        "replace": {
          "body": "{\"error\": \"internal server error\"}",
          "if_status": [
            "500"
          ]
        }
      }
    }
    '

Make sure to replace the following placeholders with your own values:

region: Geographic region where your Kong Konnect is hosted and operates.
controlPlaneId: The id of the control plane.
KONNECT_TOKEN: Your Personal Access Token (PAT) associated with your Konnect account.
consumerGroupId: The id of the consumer group the plugin configuration will target.

See the Konnect API reference to learn about region-specific URLs and personal access tokens.

echo "
apiVersion: configuration.konghq.com/v1
kind: KongPlugin
metadata:
  name: response-transformer-advanced
  namespace: kong
  annotations:
    kubernetes.io/ingress.class: kong
config:
  replace:
    body: '{'error': 'internal server error'}'
    if_status:
    - '500'
plugin: response-transformer-advanced
" | kubectl apply -f -

Next, apply the KongPlugin resource by annotating the KongConsumerGroup resource:

kubectl annotate -n kong  CONSUMERGROUP_NAME konghq.com/plugins=response-transformer-advanced

Prerequisite: Configure your Personal Access Token

terraform {
  required_providers {
    konnect = {
      source  = "kong/konnect"
    }
  }
}

provider "konnect" {
  personal_access_token = "$KONNECT_TOKEN"
  server_url            = "https://us.api.konghq.com/"
}

Add the following to your Terraform configuration to create a Konnect Gateway Plugin:

resource "konnect_gateway_plugin_response_transformer_advanced" "my_response_transformer_advanced" {
  enabled = true

  config = {

    replace = {
      body = "{\"error\": \"internal server error\"}"
      if_status = ["500"]
    }
  }

  control_plane_id = konnect_gateway_control_plane.my_konnect_cp.id
  consumer_group = {
    id = konnect_gateway_consumer_group.my_consumer_group.id
  }
}

Response Transformer Advanced

Replace the JSON body

Set up the plugin

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