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Developer tools · #ballerina
Ballerina moves HTTP routing and payload validation to compile time. Services attached to listeners with verb-encoded resources, typed records for automatic marshalling, and explicit error types reduce runtime routing and marshalling bugs in cloud-native APIs.
A decision guide to blocking versus future-based calls in Ballerina integrations, with a start/await example and a way to verify the latency change.
Learn how Ballerina automatically emits an OpenAPI 3.0 spec from your service annotations, inspect it locally, and customize the output for real‑world microservice documentation.
Learn how to declare an http:Listener, attach a service, and define resource functions to handle REST endpoints, plus how to enable HTTP/2 and avoid common pitfalls.
I am looking to harden a Ballerina microservice by limiting its permissions to only what is necessary. Ballerina provides first‑class service constructs and extensible metadata for cloud integration. How can I configure authentication, authorization, and runtime privileges (e.g., user, file system, network) using these language features to achieve a least‑pr
Deploying a Ballerina service as a Docker container and running it in a Kubernetes cluster involves compiling the source to a native binary, building an image that contains the runtime, and defining manifests that describe pods, services, and scaling policies. The challenge is to keep the image small, expose appropriate health signals, and manage configurati
When working with Ballerina services that persist state or rely on external data stores, ensuring that backup and restore operations are correct is important for reliability. What steps, tools, or practices can be used to verify that a backup captures the necessary state and that a subsequent restore returns the service to a known good condition? Please outl
When implementing secure service-to-service communication in Ballerina, managing the lifecycle of access tokens is critical for maintaining least-privilege access without causing service downtime. The Constraint The ballerina/auth/oauth2 module provides mechanisms for token management, but a design trade-off exists when handling expired credentials for user-
When developing a Ballerina service, I want to guarantee that certain helper functions are not callable from outside the defining package, even if the service is bound to an HTTP listener with a permissive allow pattern. The language provides the private keyword for function‑level visibility and the internal modifier (since 2.2.0) for package‑level visibilit
docker
kubernetes