repository·master·Indexed 41 days ago
https://github.com/ballerina-platform/ballerina-dev-websiteDocumentation for the Ballerina programming language, featuring coding conventions for version 1.2, guides on Enterprise Integration Patterns (EIP) such as Publish-Subscribe and Selective Consumer, and case studies on event-driven integration using the websubhub package and healthcare data transformation.
The Ballerina Tool (bal) is the primary command-line interface for managing Ballerina source code. It is used for managing packages and modules, testing, building, and running programs. Additionally, it allows you to install, update, and switch between different Ballerina distributions.
To see a full list of available commands, run bal help.
$ bal helpThe Ballerina FTP library provides standard library functionalities for interacting with FTP and SFTP servers. It is designed to allow developers to send and receive files securely using either the standard FTP protocol or the SSH-encrypted SFTP protocol.
The library is built around two core APIs:
ftp:Client: Used to connect to an FTP/SFTP server to perform file operations (e.g., uploading, downloading, or managing files).ftp:Listener: Used to monitor a remote FTP location and receive notifications when files are added or removed.The websubhub standard library for Ballerina provides WebSub-compliant functionalities for implementing both hub and publisher roles.
WebSub is a real-time content delivery protocol over HTTP(S) based on the PubSubHubbub specification. The library supports the three core roles defined by the protocol:
topic and hub URL on one or more resource URLs.hub and topic URL via a resource URL, subscribes to updates at the hub, and accepts content distribution requests.Ballerina's implementation includes minor improvements to the original protocol to ensure a seamless developer experience.
The ibm.ibmmq library for Ballerina allows applications to connect to an IBM MQ server to send and receive messages. It provides core abstractions for interacting with the messaging infrastructure:
ibmmq:QueueManager: Represents an IBM MQ queue manager, serving as the primary interface for establishing and controlling connections.ibmmq:Queue: Represents an IBM MQ Queue client for interacting with specific queues.ibmmq:Topic: Represents an IBM MQ Topic client for interacting with topics.The Ballerina MQTT library provides support for the MQTTv5 protocol, allowing Ballerina applications to interact with an MQTT broker. It is designed for lightweight, publish-subscribe, machine-to-machine communication, making it suitable for resource-constrained environments like IoT.
The library provides two core APIs:
The Ballerina MQTT library provides support for the MQTTv5 protocol, allowing Ballerina applications to interact with an MQTT broker. It is designed for lightweight, publish-subscribe, machine-to-machine communication, making it suitable for resource-constrained environments like IoT.
The library provides two core APIs:
enterprise-integration-patterns directory contains practical implementation samples of various Enterprise Integration Patterns (EIP) using the Ballerina programming language. These samples demonstrate how to apply standard integration patterns (such as Content-Based Router, Splitter, Aggregator, etc.) within the Ballerina ecosystem to solve complex messaging and orchestration problems.The jBallerina 1.2.1 patch release introduces several improvements across the language, standard library, development tools, and deployment capabilities:
ballerina/kafka module.The Elixir project, initiated by the Red Cross Society of Sri Lanka (SLRCS), is a digital solution designed to coordinate medical needs, suppliers, and donor funding during a healthcare crisis. The project utilized a 3-tier architecture consisting of React-based frontends (Admin Portal and Donor Portal), REST APIs built with Ballerina, and an SQL database hosted on Microsoft Azure.
Key technical components used:
This case study demonstrates Ballerina's suitability for rapid development, its ease of learning for new developers, and its effectiveness in handling data-centric tasks like JSON/CSV processing and SQL integration.
The Ballerina Auth library is a standard library used for the authentication and authorization of listeners (inbound) and clients (outbound) across various protocols including HTTP, gRPC, GraphQL, WebSocket, and WebSub.
Key concepts include:
The WebSubHub library implements the WebSub protocol (an evolution of PubSubHubbub) for real-time content delivery over HTTP(S). It supports three primary roles:
topic and hub URL on one or more resource URLs.hub and topic URL from a resource URL, subscribes to updates at the hub, and accepts content distribution requests.Ballerina's implementation includes minor improvements to the original protocol to enhance the developer experience.