In addition to being able to create custom APIs from scratch, you can now use the gateway as an API proxy for existing RESTful web services. This allows you to add authentication and authorization capabilities, rate limiting, request throttling and more before routing requests through your service. You can also use it in combination with other Fastly features such as VCL or SSL/TLS termination for advanced traffic management scenarios.
The release is available on GitHub: https://github.com/fastly/api-gateway-v1 (source) and https://docs.fastly
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