Version: 2.1.0

request-validation

Summary#

Name
Attributes
How To Enable
Test Plugin
Disable Plugin
Examples

Name#

request-validation plugin validates the requests before forwarding to an upstream service. The validation plugin uses json-schema to validate the schema. The plugin can be used to validate the headers and body data.

For more information on schema, refer to JSON schema for more information.

Attributes#

Name	Type	Requirement	Default	Valid	Description
header_schema	object	optional			schema for the header data
body_schema	object	optional			schema for the body data

How To Enable#

Create a route and enable the request-validation plugin on the route:

curl http://127.0.0.1:9080/apisix/admin/routes/5 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "uri": "/get",
    "plugins": {
        "request-validation": {
            "body_schema": {
                "type": "object",
                "required": ["required_payload"],
                "properties": {
                    "required_payload": {"type": "string"},
                    "boolean_payload": {"type": "boolean"}
                }
            }
        }
    },
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:8080": 1
        }
    }
}'

Test Plugin#

curl --header "Content-Type: application/json" \
  --request POST \
  --data '{"boolean-payload":true,"required_payload":"hello"}' \
  http://127.0.0.1:9080/get

If the schema is violated the plugin will yield a 400 bad request.

Disable Plugin#

Remove the corresponding json configuration in the plugin configuration to disable the request-validation. APISIX plugins are hot-reloaded, therefore no need to restart APISIX.

curl http://127.0.0.1:9080/apisix/admin/routes/5 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "uri": "/get",
    "plugins": {
    },
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:8080": 1
        }
    }
}'

Examples:#

Enum validate:

{
    "body_schema": {
        "type": "object",
        "required": ["required_payload"],
        "properties": {
                "enum_payload": {
                "type": "string",
                "enum": ["enum_string_1", "enum_string_2"],
                "default": "enum_string_1"
            }
        }
    }
}

Boolean validate:

{
    "body_schema": {
        "type": "object",
        "required": ["bool_payload"],
        "properties": {
            "bool_payload": {
                "type": "boolean",
                "default": true
            }
        }
    }
}

Number or Integer validate:

{
    "body_schema": {
        "type": "object",
        "required": ["integer_payload"],
        "properties": {
            "integer_payload": {
                "type": "integer",
                "minimum": 1,
                "maximum": 65535
            }
        }
    }
}

String validate:

{
    "body_schema": {
        "type": "object",
        "required": ["string_payload"],
        "properties": {
            "string_payload": {
                "type": "string",
                "minLength": 1,
                "maxLength": 32
            }
        }
    }
}

Regex validate:

{
    "body_schema": {
        "type": "object",
        "required": ["regex_payload"],
        "properties": {
            "regex_payload": {
                "type": "string",
                "minLength": 1,
                "maxLength": 32,
                "pattern": "[[^[a-zA-Z0-9_]+$]]"
            }
        }
    }
}

Array validate:

{
    "body_schema": {
        "type": "object",
        "required": ["array_payload"],
        "properties": {
            "array_payload": {
                "type": "array",
                "minItems": 1,
                "items": {
                    "type": "integer",
                    "minimum": 200,
                    "maximum": 599
                },
                "uniqueItems": true,
                "default": [200, 302]
            }
        }
    }
}

Multi-field combination verification:

{
    "body_schema": {
        "type": "object",
        "required": ["boolean_payload", "array_payload", "regex_payload"],
        "properties": {
            "boolean_payload": {
                "type": "boolean"
            },
            "array_payload": {
                "type": "array",
                "minItems": 1,
                "items": {
                    "type": "integer",
                    "minimum": 200,
                    "maximum": 599
                },
                "uniqueItems": true,
                "default": [200, 302]
            },
            "regex_payload": {
                "type": "string",
                "minLength": 1,
                "maxLength": 32,
                "pattern": "[[^[a-zA-Z0-9_]+$]]"
            }
        }
    }
}