Ballerina - Programming language

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Ballerina is an open source programming language created in 2015 by Sanjiva Weerawarana and James Clark and Sameera Jayasoma and Hasitha Aravinda and Srinath Perera and Frank Leymann.

#145on PLDB

9Years Old

1kRepos

Download source code:

git clone https://github.com/ballerina-platform/ballerina-lang

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Ballerina is a compiled, type-safe, concurrent programming language targeting microservice development and integration.It is an open source project started in 2015 by architects from WSO2 as code-based alternative to the configuration-based integration tools such as EAI, ESB, and workflow products.Ballerina has various constructs geared toward cloud-native development including support for modern data formats and protocols, reliability, distributed transactions, APIs, and event streams.. Read more on Wikipedia...

Tags: programming language
Ballerina is developed on GitHub and has 3,556 stars
There are at least 1,483 Ballerina repos on GitHub
Early development of Ballerina happened in WSO2
Ballerina is written in Java, JSON, TOML, Markdown, Gradle, XML, YAML, mustache, HTML, SQL, CSV, JavaScript, SVG, Bash, Bourne shell, CSS, Groovy, DTD, Handlebars
The Google BigQuery Public Dataset GitHub snapshot shows 21 users using Ballerina in 22 repos on GitHub
Ballerina LSP implementation
GitHub supports syntax highlighting for Ballerina
Learn Ballerina on exercism.
There is a central package repository for Ballerina
ballerina.io was registered in 2017
See also: (3 related languages) Java, Go, Rust

Example from hello-world:

import ballerina/io;

public function main() {
    io:println("Hello World");
}

Example from Linguist:

import ballerina.lang.system;

function main (string[] args) {
    system:println("Hello, World!");
}

Example from Wikipedia:

// The simplest hello world REST API
// To run it:
// ballerina run demo.bal
// To invoke:
// curl localhost:9090/hello/hi

import ballerina/http;

service<http:Service> hello bind {port:9090} {
  hi (endpoint caller, http:Request request) {
      http:Response res;
      res.setTextPayload("Hello World!\n");
      _ = caller->respond(res);
  }
}

Language features

Feature	Supported	Example	Token
Strings	✓	"Hello world"	"
Print() Debugging	✓		io:println
Line Comments	✓	// A comment	//
File Imports	✓	import ballerina/http; import ballerina/io;
Comments	✓	// A comment
Semantic Indentation	X