How deeply does Effective Platform Engineering cover API gateway?

Explains DNS-to-gateway routing and adoption trade-offs, but defers gateway implementation details.

API gateway

As explained in Effective Platform Engineering

An API gateway is a service that receives API traffic and applies gateway functions such as routing, access management, and developer credential handling.

An API gateway receives API traffic and applies gateway functions such as routing, access management, and developer credential handling. section 7.1.3

For third-party API access, DNS can direct api.epetech.io to the gateway, which then forwards traffic to the actual API. section 7.1.3

Use an API gateway selectively:

Prefer it when third-party developers need a controlled external API entry point. section 7.1.3
Avoid adding it automatically to Kubernetes services when the Kubernetes API or service mesh already supplies the required capabilities. section 7.1.3
Account for additional traffic, configuration complexity, cost, and potential customer-support burden. section 7.1.3

External API traffic

An engineering platform exposes APIs at api.epetech.io. DNS points that subdomain to the API gateway, which redirects requests to the deployed API while supporting third-party access. section 7.1.3

How Effective Platform Engineering covers it

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Also explained in

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Authorization in ActionAn API gateway is a service that receives, routes, and often governs requests to backend APIs.
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Automating API DeliveryAn API gateway is a service that acts as a central entry point for API traffic, routing requests to backend services while enforcing cross-cutting policies.
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Bootstrapping Microservices, Second Edition: With Docker, Kubernetes, GitHub Actions, and TerraformAn architectural component that serves as an entry point between clients and backend services.
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Spring in Action, Sixth EditionA gateway interface is an interface whose methods provide an application-facing entry point for sending messages into an integration flow.
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Microsoft Azure in ActionAn API gateway is an intermediary service that receives client API requests and routes or manages them for backend services while presenting a stable external interface.

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Related concepts

rate limituses · A rate limit is a bound on the frequency or volume of operations permitted within a defined interval, scope, or concurrency limit.
authenticationuses · Authentication is the process of establishing or verifying the identity of a user, service, device, or other communicating entity.
contractuses · An API contract is a specification of the operations, data, and behavioral expectations that govern interactions between software components.
service meshalternative to · A service mesh is an infrastructure layer that manages communication and cross-cutting concerns such as traffic control, security, and observability between distributed services.
reverse proxykind of · A reverse proxy is a server-side intermediary that receives client requests, forwards them to backend servers or services, and relays their responses to clients.

This explainer was generated by Manning's knowledge graph from the text of Effective Platform Engineering. The section links point to the parts of the book it draws on.