Anypoint Flex Gateway Policy Development Kit (PDK) Release Notes

1.3.0

March 18, 2025

What’s New

PDK now provides a Contract Validation library to help with creating custom client ID enforcement policies.

See Using Contracts Validation Library Functions.
PDK is now built with Rust Version 1.83.0
Integration testing performance is improved for pdk-test with desktop configurations.
PDK can now develop outbound policies.

See Define Outbound Policies.

Fixed Issues

Issue Resolution ID

Issue Resolution	ID
`GrpcClient` now handles optional empty values instead of failing. Previously `GrpcClient` raised a `GrpcClientError::EmptyContent` error for some conditions with an empty optional field.	W-16486150

GrpcClient now handles optional empty values instead of failing. Previously GrpcClient raised a GrpcClientError::EmptyContent error for some conditions with an empty optional field.

W-16486150

Compatibility

Policies created with PDK might be compatible with Flex Gateway versions that aren’t compatible with PDK’s integration testing framework. The Flex Gateway version used for testing doesn’t affect the functionality of the policy when deployed to a different Flex Gateway version. See the following table to ensure your Flex Gateway’s compatibility:

Component

Minimum Flex Gateway Version

Maximum Flex Gateway Version

Policies

1.6.1

Latest

Testing Framework

1.6.1

Latest

1.2.0

August 28, 2024

What’s New

PDK now provides a CORS library to help create policies that process cross-origin requests.

See Using CORS Library Functions.
The PDK integration testing framework is improved for easier test configuration.

See Writing Integration Tests.
Incorrect conditional parameter schema configurations are now rejected when the policy is compiled instead of when the policy is deployed.
Conditional parameters can now depend on boolean and integer parameters.

See Define Conditional Parameters.

Compatibility

Policies created with PDK might be compatible with Flex Gateway versions that aren’t compatible with PDK’s integration testing framework. The Flex Gateway version used for testing doesn’t affect the functionality of the policy when deployed to a different Flex Gateway version. See the following table to ensure your Flex Gateway’s compatibility:

Component

Minimum Flex Gateway Version

Maximum Flex Gateway Version

Policies

1.6.1

Latest

Testing Framework

1.6.1

Latest

1.1.0

May 13, 2024

What’s New

You can now run the PDK integration testing framework within a Docker container. To learn more about the testing framework, see Writing Integration Tests.
You can now apply PDK custom policies at the resource level.

To learn more about resource-level application, see Resource-Level Policies.
You can now configure parameters to conditionally render in the API Manager UI when configuring a policy.

To learn more, see Define Conditional Parameters.
PDK now provides a timer feature to enable periodical, synchronous, and delayed functions.

To learn more, see Configuring Delayed, Periodic, and Synchronous Functions.

Known Issues

Due to publication issues, in order to correctly install the Anypoint CLI PDK Plugin version for this release, the installation command must include the version: anypoint-cli-v4 plugins:install anypoint-cli-pdk-plugin@1.1.0

Compatibility

Policies created with PDK might be compatible with Flex Gateway versions that aren’t compatible with PDK’s integration testing framework. The Flex Gateway version used for testing doesn’t affect the functionality of the policy when deployed to a different Flex Gateway version. See the following table to ensure your Flex Gateway’s compatibility:

Component

Minimum Flex Gateway Version

Maximum Flex Gateway Version

Policies

1.6.1

Latest

Testing Framework

1.6.1

Latest

1.0.1

March 14, 2024

What’s New

While processing requests, PDK no longer throws a panic if a request to an HTTP service times out.
Request filters can now return Flows with non-unit types when no response filter is configured.
The isEmpty() function is now enabled for DataWeave expressions. Expressions such as dw::core::Strings::substringAfter now return empty strings instead of null.

Compatibility

Policies created with PDK might be compatible with Flex Gateway versions that aren’t compatible with PDK’s integration testing framework. The Flex Gateway version used for testing doesn’t affect the functionality of the policy when deployed to a different Flex Gateway version. See the following table to ensure your Flex Gateway’s compatibility:

Component	Minimum Flex Gateway Version	Maximum Flex Gateway Version
Policies	1.6.1	Latest
Testing Framework	1.6.1	1.6.1

1.0.0

January 31, 2024

MuleSoft announces the release of Anypoint Flex Gateway Policy Development Kit (PDK) 1.0.0.

PDK is a software development kit that enables you to develop Flex Gateway custom policies with ease.

PDK provides instructions to guide you through the policy development lifecycle, from implementing your Rust source code to releasing your policy on Exchange. Like included policies, you can apply custom policies to Flex Gateway running in Connected Mode by using API Manager or to Flex Gateway running in Local Mode by using YAML configuration files.

PDK also provides example policies to help you get started with policy development.

To begin using PDK, see Flex Gateway Policy Development Kit (PDK) Overview.

Compatibility

Policies created with PDK might be compatible with Flex Gateway versions that aren’t compatible with PDK’s integration testing framework. The Flex Gateway version used for testing doesn’t affect the functionality of the policy when deployed to a different Flex Gateway version. See the following table to ensure your Flex Gateway’s compatibility:

Component	Minimum Flex Gateway Version	Maximum Flex Gateway Version
Policies	1.6.1	Latest
Testing Framework	1.6.1	1.6.1