Min Message Size Policy - Apinizer Dokümantasyonu

General Information

Policy Type

policy-min-message-size

Endpoints

List Policies

GET /apiops/projects/{projectName}/apiProxies/{apiProxyName}/policies/

Add Policy

POST /apiops/projects/{projectName}/apiProxies/{apiProxyName}/policies/{policyName}/

Update Policy

PUT /apiops/projects/{projectName}/apiProxies/{apiProxyName}/policies/{policyName}/

Delete Policy

DELETE /apiops/projects/{projectName}/apiProxies/{apiProxyName}/policies/{policyName}/

List Policies

Endpoint

GET /apiops/projects/{projectName}/apiProxies/{apiProxyName}/policies/

Request

Headers

Header	Value
Authorization	Bearer `{token}`

Path Parameters

Parameter	Type	Required	Description
projectName	string	Yes	Project name
apiProxyName	string	Yes	API Proxy name

Response

Success Response (200 OK)

{
  "success": true,
  "resultList": [
    {
      "apiProxy": {
        "name": "MyAPI",
        "requestPolicyList": [
          {
            "type": "policy-min-message-size",
            "name": "min-size-policy",
            "description": "Require minimum 100 bytes",
            "active": true,
            "minMessageSize": 100
          }
        ],
        "responsePolicyList": [],
        "errorPolicyList": []
      }
    }
  ],
  "resultCount": 1
}

cURL Example

curl -X GET \
  "https://demo.apinizer.com/apiops/projects/MyProject/apiProxies/MyAPI/policies/" \
  -H "Authorization: Bearer YOUR_TOKEN"

Add Policy

Endpoint

POST /apiops/projects/{projectName}/apiProxies/{apiProxyName}/policies/{policyName}/

Request

Headers

Header	Value
Authorization	Bearer `{token}`
Content-Type	application/json

Path Parameters

Parameter	Type	Required	Description
projectName	string	Yes	Project name
apiProxyName	string	Yes	API Proxy name
policyName	string	Yes	Policy name

Request Body

Full JSON Body Example

{
  "operationMetadata": {
    "targetScope": "ALL",
    "targetPipeline": "REQUEST",
    "deploy": true,
    "deployTargetEnvironmentNameList": ["production"],
    "order": 1
  },
  "policy": {
    "type": "policy-min-message-size",
    "description": "Require minimum 100 bytes for request body",
    "active": true,
    "minMessageSize": 100
  }
}

Request Body Fields

operationMetadata

Field	Type	Required	Default	Description
targetScope	string	Yes	-	Policy scope: `ALL` or `ENDPOINT`
targetEndpoint	string	No*	-	Endpoint path (required if targetScope=ENDPOINT)
targetEndpointHTTPMethod	string	No*	-	HTTP method (required if targetScope=ENDPOINT)
targetPipeline	string	Yes	-	Pipeline: `REQUEST`, `RESPONSE`, or `ERROR`
deploy	boolean	No	true	Whether to deploy after adding policy
deployTargetEnvironmentNameList	array	No	[]	List of environment names to deploy to
order	integer	No	null	Policy execution order (starts from 1)

Enum: targetScope

ALL - Policy applies to all endpoints
ENDPOINT - Policy applies only to specified endpoint

Enum: targetPipeline

REQUEST - Executes in request pipeline (validates request body size)
RESPONSE - Executes in response pipeline (validates response body size)
ERROR - Executes in error pipeline

Enum: targetEndpointHTTPMethod

GET, POST, PUT, DELETE, PATCH, OPTIONS, HEAD

policy

Field	Type	Required	Default	Description
type	string	Yes	-	Policy type: `policy-min-message-size`
description	string	No	-	Policy description
active	boolean	No	true	Whether policy is active
minMessageSize	long	Yes	-	Minimum message size in bytes

Size Examples

100 - 100 bytes
1024 - 1 KB
1048576 - 1 MB (1024 * 1024)

Note

minMessageSize must be greater than 0.
Size is measured in bytes.
Messages smaller than this size are rejected with an error.

Response

Success Response (200 OK)

{
  "success": true,
  "deploymentResult": {
    "success": true,
    "deploymentResults": [
      {
        "environmentName": "production",
        "success": true,
        "message": "Deployment successful"
      }
    ]
  }
}

cURL Example

curl -X POST \
  "https://demo.apinizer.com/apiops/projects/MyProject/apiProxies/MyAPI/policies/min-size-policy/" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "operationMetadata": {
      "targetScope": "ALL",
      "targetPipeline": "REQUEST",
      "deploy": true,
      "deployTargetEnvironmentNameList": ["production"],
      "order": 1
    },
    "policy": {
      "type": "policy-min-message-size",
      "description": "Require minimum 100 bytes",
      "active": true,
      "minMessageSize": 100
    }
  }'

Update Policy

Endpoint

PUT /apiops/projects/{projectName}/apiProxies/{apiProxyName}/policies/{policyName}/

Request

Headers

Header	Value
Authorization	Bearer `{token}`
Content-Type	application/json

Path Parameters

Parameter	Type	Required	Description
projectName	string	Yes	Project name
apiProxyName	string	Yes	API Proxy name
policyName	string	Yes	Policy name

Request Body

Full JSON Body Example

{
  "operationMetadata": {
    "targetScope": "ALL",
    "targetPipeline": "REQUEST",
    "deploy": true,
    "deployTargetEnvironmentNameList": ["production"],
    "order": 1
  },
  "policy": {
    "type": "policy-min-message-size",
    "description": "Updated - require minimum 500 bytes",
    "active": true,
    "minMessageSize": 500
  }
}

Note: Request body structure is the same as Add Policy. All fields should be provided for update.

Response

Success Response (200 OK)

{
  "success": true,
  "deploymentResult": {
    "success": true,
    "deploymentResults": [
      {
        "environmentName": "production",
        "success": true,
        "message": "Deployment successful"
      }
    ]
  }
}

cURL Example

curl -X PUT \
  "https://demo.apinizer.com/apiops/projects/MyProject/apiProxies/MyAPI/policies/min-size-policy/" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "operationMetadata": {
      "targetScope": "ALL",
      "targetPipeline": "REQUEST",
      "deploy": true,
      "deployTargetEnvironmentNameList": ["production"],
      "order": 1
    },
    "policy": {
      "type": "policy-min-message-size",
      "description": "Updated - require minimum 500 bytes",
      "active": true,
      "minMessageSize": 500
    }
  }'

Delete Policy

Endpoint

DELETE /apiops/projects/{projectName}/apiProxies/{apiProxyName}/policies/{policyName}/

Request

Headers

Header	Value
Authorization	Bearer `{token}`
Content-Type	application/json

Path Parameters

Parameter	Type	Required	Description
projectName	string	Yes	Project name
apiProxyName	string	Yes	API Proxy name
policyName	string	Yes	Policy name

Request Body

Full JSON Body Example

{
  "operationMetadata": {
    "targetScope": "ALL",
    "targetPipeline": "REQUEST",
    "deploy": false
  }
}

Request Body Fields

operationMetadata

Field	Type	Required	Description
targetScope	string	Yes	Policy scope: `ALL` or `ENDPOINT`
targetPipeline	string	Yes	Pipeline: `REQUEST`, `RESPONSE`, or `ERROR`
deploy	boolean	No	false	Whether to deploy after deletion

Response

Success Response (200 OK)

{
  "success": true,
  "deploymentResult": {
    "success": true,
    "deploymentResults": []
  }
}

cURL Example

curl -X DELETE \
  "https://demo.apinizer.com/apiops/projects/MyProject/apiProxies/MyAPI/policies/min-size-policy/" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "operationMetadata": {
      "targetScope": "ALL",
      "targetPipeline": "REQUEST",
      "deploy": false
    }
  }'

Notes and Warnings

Size Limit: minMessageSize must be greater than 0 (measured in bytes)
Size Calculation:
- 1 KB = 1024 bytes
- 1 MB = 1048576 bytes (1024 * 1024)
Message Size: Includes entire request/response body (headers are not counted)
Validation: Size is checked before message is fully processed
Error Response: Messages smaller than the minimum are rejected with an error
Pipeline:
- REQUEST pipeline validates request body size
- RESPONSE pipeline validates response body size
Use Cases:
- Ensure data completeness
- Prevent empty or minimal payloads
- Security: reject suspiciously small requests
Order: This policy should typically be executed early in the pipeline (low order number)
Deployment: Policy changes require deployment to take effect. Set deploy: true or deploy manually.

List Policies - List all policies
Add Policy - General policy addition guide
Update Policy - General policy update guide
Delete Policy - General policy deletion guide
Max Message Size Policy - Set maximum message size

Home

​General Information

​Policy Type

​Endpoints

​List Policies

​Add Policy

​Update Policy

​Delete Policy

​List Policies

​Endpoint

​Request

​Headers

​Path Parameters

​Response

​Success Response (200 OK)

​cURL Example

​Add Policy

​Endpoint

​Request

​Headers

​Path Parameters

​Request Body

Full JSON Body Example

​Request Body Fields

operationMetadata

policy

​Size Examples

​Note

​Response

​Success Response (200 OK)

​cURL Example

​Update Policy

​Endpoint

​Request

​Headers

​Path Parameters

​Request Body

Full JSON Body Example

​Response

​Success Response (200 OK)

​cURL Example

​Delete Policy

​Endpoint

​Request

​Headers

​Path Parameters

​Request Body

Full JSON Body Example

​Request Body Fields

operationMetadata

​Response

​Success Response (200 OK)

​cURL Example

​Notes and Warnings

​Related Documentation

General Information

Policy Type

Endpoints

List Policies

Add Policy

Update Policy

Delete Policy

List Policies

Endpoint

Request

Headers

Path Parameters

Response

Success Response (200 OK)

cURL Example

Add Policy

Endpoint

Request

Headers

Path Parameters

Request Body

Request Body Fields

Size Examples

Note

Response

Success Response (200 OK)

cURL Example

Update Policy

Endpoint

Request

Headers

Path Parameters

Request Body

Response

Success Response (200 OK)

cURL Example

Delete Policy

Endpoint

Request

Headers

Path Parameters

Request Body

Request Body Fields

Response

Success Response (200 OK)

cURL Example

Notes and Warnings

Related Documentation