Showing posts with label SOA. Show all posts
Showing posts with label SOA. Show all posts
Wednesday, January 17, 2018

Timeout for REST calls

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Quite often, we need a REST API to respond within a specified time frame, say 1500 ms. Implementing this using the excellent Spring RestTe...
Wednesday, October 04, 2017

Spring Sleuth Tips and Tricks

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Spring Sleuth coupled with Zipkin in an excellent tool to measure the performance bottlenecks in your distributed microservices architectu...
Tuesday, October 03, 2017

Parsing an arbitrary JSON string and extracting values

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Developers use libraries such as Jackson to convert JSON strings to Java objects and vice-versa. But what if you need to parse a JSON stri...
Sunday, April 16, 2017

Ruminating on the single-threaded model of NodeJS and Node-RED

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Many developers and architects have asked me questions on the single-threaded nature of NodeJS and whether we can use it effectively on mul...

Ruminating on a nifty tool called 'ngrok'

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Many a times developers want to test their APIs running on their development machine against a mobile app. To do so, developers typically d...
Thursday, December 01, 2016

Ruminating on non-blocking REST services

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In a typical REST service environment, a thread is allocated to each incoming HTTP request for processing. So if you have configured your c...

Implementing a Request Response with Messaging (JMS)

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Quite often, we need to implement a request/response paradigm on JMS - e.g. calling a backend function on a mainframe or a third-party inte...
Saturday, December 05, 2015

Orchestrating Microservices using Event Driven Architecture (EDA) paradigms

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If you follow the microservices architecture style, you would have a bunch of services running in their own independent process space. Bu...
Sunday, October 04, 2015

Service Discovery Mechanisms in Microservices

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In a microservices based architecture, we would not know the number of instances of a server or their IP addresses beforehand. This is beca...
Saturday, October 03, 2015

Handling failures and improving resilience in microservices

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In a microservices architecture, one has to build services that can handle failures. For e.g. If a microservice calls another dependent mic...
Sunday, March 16, 2014

Calling a secure HTTPS webservice from a Java client

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Over the last decade, I have seen so many developers struggle with digital certificates when they have to call a secure webservice. A lot o...
Wednesday, November 13, 2013

Beautiful REST API documentation

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InfoQ has published a list of tools that can be used for creating some cool documentation for our Web APIs. I was particularly impresse...
Wednesday, September 25, 2013

Ruminating on EDI

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Despite being very old,  EDI (Electronic Data Interchange) is still a dominant force in many industries; especially in healthcare. Organiza...
Thursday, June 20, 2013

WS-Security Username Token Implementation using WCF

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The following article on microsoft site is an excellent tutorial for beginners looking to use open standards such as WS-Security to secure ...
Tuesday, June 18, 2013

Contracts in REST based services

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Traditionally REST based services did not have formal contracts between the service consumer and service provider. There used to be a out-o...
Wednesday, October 03, 2012

Troubleshooting XML namespaces binding in SOAP request using JAXB

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Recently helped a team resolve an issue regarding namespace handling in JAX-WS / CXF. Jotting down the solution as it might help other folk...
Friday, August 31, 2012

Centralized Clustered ESB vs Distributed ESB

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Often folks ask me the difference between traditional EAI (Enterprise Application Integration) products and ESB (Enterprise Service Bus). T...
Tuesday, August 21, 2012

Understanding REST

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In one of my old posts , I had elaborated on the differences between REST and simple POX/HTTP. Recently came across an interesting post b...
Friday, August 03, 2012

SOA interoperability - .NET WCF from Java

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Recently, one of our teams was struggling to integrate a Java application with a .NET WCF service. The exception that was thrown on the Jav...
Friday, December 02, 2011

Taxonomy of Services

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In one of my previous posts , I had blogged about creating a taxonomy of services using functional categorization. For e.g. Entity Service...