What are some open source applications which have a robust external API calls implementations ?

• Hystrix

  19 23,877 2.7 Java

  Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex distributed systems where failure is inevitable.

  

Let met explain. Request/Reply can need retry but its latency and retry constraints are far different than Pub/Sub (aka fire and forget). Request/Reply retry patterns are best seen in Netflix Hystrix w/ the bulkhead pattern.

• javaslang-circuitbreaker

  11 9,420 7.3 Java

  Resilience4j is a fault tolerance library designed for Java8 and functional programming

  

Hystrix as been deprecated in favour of https://github.com/resilience4j/resilience4j

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• Sentinel

  1 21,929 7.4 Java

  A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)

  

• Activiti

  2 9,902 8.8 Java

  Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.

  

• conductor

  39 12,999 8.4 Java

  Discontinued Conductor is a microservices orchestration engine.

  

• mycollab

  2 1,226 0.0 Java

  An open source, free, high performance, stable and secure Java Application Business Platform of Project Management and Document

  

• cloud-native-starter

  1 518 0.0 Shell

  Cloud Native Starter for Java/Jakarta EE based Microservices on Kubernetes and Istio

  

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• thorntail

  1 397 1.0 Java

  Discontinued Source code for the Thorntail project

  

• Springy-Store-Microservices

  2 542 0.0 Java

  Springy Store is a conceptual simple μServices-based project using the latest cutting-edge technologies, to demonstrate how the Store services are created to be a cloud-native and 12-factor app agnostic. Those μServices are developed based on Spring Boot & Cloud framework that implements cloud-native intuitive, design patterns, and best practices.

• api-layer

  1 48 9.3 Java

  The API Mediation Layer provides a single point of access for mainframe service REST APIs.

  

• failsafe

  6 4,098 5.4 Java

  Fault tolerance and resilience patterns for the JVM

  

I like Failsafe personally. Nice clear API.

• java-slack-sdk

  2 551 9.3 Java

  Slack Developer Kit (including Bolt for Java) for any JVM language

  

Slack's API Client is fairly robust, with retries, async client, rate limiting support.

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