Top 23 Java REST-API Projects
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openapi-generator
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
OpenAPI Generator
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swagger-core
Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API
Im mostly in C# land nowadays, but this seems to be the java version. I’m not sure it is as deeply integrated, as I think Java has a few popular server frameworks.
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Scout APM
Less time debugging, more time building. Scout APM allows you to find and fix performance issues with no hassle. Now with error monitoring and external services monitoring, Scout is a developer's best friend when it comes to application development.
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In this post, we will demonstrate how can OpenAPI be used in a RestAssured-based integration test to ensure that the API conforms to its specification.
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JDA is probably what you're looking for
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We are going to use restcountries API.
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Project mention: Why does Kafka use long-polling instead of websockets? | reddit.com/r/softwaredevelopment | 2021-09-17
Maybe you're referring to kafka-rest and http based long polling? Nevertheless, the reason linked in the other comment is still the same.
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Confluent is a company founded by the creators of Apache Kafka. They are providing the Confluent Platform which consists of several components, all based on Kafka. The license for these components vary. The Schema Registry has the community-license, which basically means it's free to use as long as you don't offer the Schema Registry itself as a SaaS solution. The source code can be found on Github.
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OPS
OPS - Build and Run Open Source Unikernels. Quickly and easily build and deploy open source unikernels in tens of seconds. Deploy in any language to any cloud.
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Project mention: [P] Facial Recognition with AWS Rekognition or Azure Vision | reddit.com/r/MachineLearning | 2021-08-20
For face recognition - CompreFace. Disclaimer - I created it, as an alternative you can use MachineBox, but it's not open source and has limits. Also, I think, you will use some software to control the system, e.g. Frigate or Home Assistant, I think this repository can be useful for you.
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Project mention: Autogenerating YAML documentation for REST APIs | reddit.com/r/AskProgramming | 2022-01-06
For Java/Spring there's SpringDoc. We use that. Works really well.
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Discord4J
Discord4J is a fast, powerful, unopinionated, reactive library to enable quick and easy development of Discord bots for Java, Kotlin, and other JVM languages using the official Discord Bot API.
Project mention: Been making a Discord bot with Discord4J, where do I start learning the nitty gritty? | reddit.com/r/learnjava | 2021-09-05 -
aws-serverless-java-container
A Java wrapper to run Spring, Jersey, Spark, and other apps inside AWS Lambda.
Serverless Land AWS Serverless Services Event-Driven Architecture Serverless Framework
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mycollab
An open source, free, high performance, stable and secure Java Application Business Platform of Project Management and Document
Project mention: What are some open source applications which have a robust external API calls implementations ? | reddit.com/r/java | 2021-08-24 -
Project mention: Creating a map of multiple isochrones (distance traveled in given time from given point)? | reddit.com/r/datascience | 2021-12-12
For anyone else, there is a free api that can do this: https://openrouteservice.org/
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DSpace
(Official) The DSpace digital asset management system that powers your Institutional Repository
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Project mention: Representational State Transfer + Structured Query Language (RSQL): using Java Spring-boot | reddit.com/r/java | 2021-10-26
Made a Demo application using Rsql-parser. Came across this library recently and loved the approach, a single GET API is all that'll be needed to be exposed per entity class to handle the data fetching requirements.
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Para
Multitenant backend server for building web and mobile apps rapidly. The backend for busy developers. (self-hosted or hosted) (by Erudika)
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A new version of DeepfakeHTTP is out! I decided to add a new --dir option, allowing to host static content as static servers do. However, unlike regular static servers, DeepfakeHTTP can also host executable stuff, such as shell scripts or JavaScript. In order to have JavaScript executed on the server side you need to specify 'use server' at the beginning of the code (similar to the well-known 'use strict').
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Project mention: Containerizing a Spring/Angular application with Docker Compose | dev.to | 2021-12-07
Spring Boot-powered REST API
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Project mention: Which Java libraries would benefit from being Kotlin-ified? | reddit.com/r/Kotlin | 2021-05-01
Though, I definitely want to port over the GitHub and Jenkins libraries (at least). I've used multiple Java-based GitHub libraries along with the Jenkins REST wrapper library, and I feel that they leave much to be desired, IMHO. Plus, an idiomatic Kotlin version of these might actually turn out to be better overall. . . .
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webtau
Webtau (short for web test automation) is a testing API, command line tool and a framework to write unit, integration and end-to-end tests. Test across REST-API, Graph QL, Browser, Database, CLI and Business Logic with consistent set of matchers and concepts. REPL mode speeds-up tests development. Rich reporting cuts down investigation time.
Project mention: What UI automation framework are you using? | reddit.com/r/softwaretesting | 2021-02-09 -
castlemock
Castle Mock is a web application that provides the functionality to mock out RESTful APIs and SOAP web services.
CastleMock is probably the easiest SOAP and REST mocking application that I have ever tried. Instead of going through loops in SOAP UI to mock SOAP WS I can simply create a mock in a nice UI directly on the server, this ease of use is of tremendous importance to some of the testers I work with.
Java REST-API related posts
- Automatically generate services and models for React 🪄
- I created a library that exports your Spring endpoints into a Postman collection! Please, let me know what you think of it :)
- What csharp sdk should I build create for our API ?
- An easy way to make a bot with Java
- OpenAPI Generator v5.3.1 - the last stable release in 2021
- Creating a map of multiple isochrones (distance traveled in given time from given point)?
- WIP - IBM Watson Rust Bindings
Index
What are some of the best open-source REST-API projects in Java? This list will help you:
| Project | Stars | |
|---|---|---|
| 1 | openapi-generator | 10,935 |
| 2 | swagger-core | 6,922 |
| 3 | REST Assured | 5,690 |
| 4 | JDA | 2,654 |
| 5 | restcountries | 2,056 |
| 6 | kafka-rest | 1,869 |
| 7 | schema-registry | 1,668 |
| 8 | CompreFace | 1,588 |
| 9 | springdoc-openapi | 1,565 |
| 10 | Discord4J | 1,324 |
| 11 | aws-serverless-java-container | 1,157 |
| 12 | mycollab | 1,128 |
| 13 | openrouteservice | 797 |
| 14 | Restlet Framework | 621 |
| 15 | DSpace | 618 |
| 16 | rsql-parser | 556 |
| 17 | Para | 420 |
| 18 | DeepfakeHTTP | 355 |
| 19 | spring-petclinic-rest | 300 |
| 20 | Crnk | 256 |
| 21 | jenkins-rest | 246 |
| 22 | webtau | 216 |
| 23 | castlemock | 197 |
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