Some minor typos in links fixed

_posts/2016-12-13-danielbryant-microservices-guestblog.md

@@ -27,15 +27,15 @@ Lorenzo was then back on stage presenting a short talk about the [Actor Model](h
 
 After lunch Daniel stepped back onto the stage and talked about some of the [“deadly sins” antipatterns](http://www.slideshare.net/HaufeDev/haufe-seven-deadly-sins-final) that the OpenCredo team have seen when working on microservice projects. Some of the key takeaways included: the need to evaluate the latest and greatest technologies before their use; standardising on communication approaches; realising that implementing microservices is as much about people (and organisation design) as it is the technology; be wary of creating a ‘distributed monolith’; implement fault-tolerance within your services and system; don’t create a canonical data model (and look instead at bounded contexts); and make sure you adapt your testing practices when working with a distributed system.
 
-[Martin Danielsson](https://twitter.com/donmartin76) from Haufe was next to present a new approach to [API management within Haufe](https://www.youtube.com/watch?v=2lyADLYnXc0), using the Wicked API gateway framework. [Wicked](http://wicked.haufe.io/) is available as open source software, and is built upon the open source Mashape [Kong API Gateway](https://github.com/Mashape/kong) (which in turn is built upon nginx). Martin began the talk by examining the role of an API: providing access to APIs, providing usage insights, implementing cross-cutting security (authentication), traffic control, and decoupling the inside systems from the outside allowing external interfaces to be some degree shielded from changes. Wicked also uses Docker, Node.js and Swagger and the code can be found in the [‘wicked.haufe.io’](https://github.com/Mashape/kong) repo with the Haufe-Lexware GitHub account.
+[Martin Danielsson](https://twitter.com/donmartin76) from Haufe was next to present a new approach to [API management within Haufe](https://www.youtube.com/watch?v=2lyADLYnXc0), using the Wicked API gateway framework. [Wicked](http://wicked.haufe.io/) is available as open source software, and is built upon the open source Mashape [Kong API Gateway](https://github.com/Mashape/kong) (which in turn is built upon nginx). Martin began the talk by examining the role of an API: providing access to APIs, providing usage insights, implementing cross-cutting security (authentication), traffic control, and decoupling the inside systems from the outside allowing external interfaces to be some degree shielded from changes. Wicked also uses Docker, Node.js and Swagger and the code can be found in the [‘wicked.haufe.io’](https://github.com/Haufe-Lexware/wicked.haufe.io) repo with the Haufe-Lexware GitHub account.
 
 ### Closing the ‘Event’ with ES and CQRS...
 
 The final talk of the day was presented by Lorenzo, and focused on [‘A Visual Introduction to Event Sourcing and CQRS’](http://www.slideshare.net/opencredo/a-visual-introduction-to-event-sourcing-and-cqrs-by-lorenzo-nicora). After a brief introduction to the concept of an ‘aggregate’ from Domain-driven Design (DDD), Lorenzo walked the audience through various models of data storage and access, from synchronous access using a RDBMS to event sourcing and CQRS (via asynchronous message-driven command sourcing). Benefits of event sourcing include easy eventual business consistency (via corrective events), being robust to data corruption, providing the ability to store history (“for free”) that allows state to be rebuilt at a point in time, and scalability (e.g. utilising distributed k/v stores and asynchronous processing). Lorenzo cautioned that there are also drawbacks, for example no ACID transactions, no “one-size-fits-all”, and the additional complexity (and developer skill required).
 
 ### Wrapping up a Great Day!
 
-The day concluded with the Haufe team running a public meetup in the same venue, with Daniel presenting his updated “Seven (More) Deadly Sins of Microservices” talk, Martin reprising his presentation on Wicked.io, and another Haufe team talking about their journey with Dockerising an existing suite of applications.
+The day concluded with the Haufe team running a public meetup in the same venue, with Daniel presenting his updated “Seven (More) Deadly Sins of Microservices” talk, Martin reprising his presentation on [wicked.haufe.io](http://wicked.haufe.io), and another Haufe team talking about their journey with Dockerising an existing suite of applications.
 
 There was lots to think about after watching all of the talks and chatting to attendees, and we concluded that there are many challenges with implementing changes like moving to a microservices architecture or migrating to the cloud within a company that has the successful history and size of Haufe. The primary issue for a leadership team is defining the role that IT will play within any transformation, and being very clear what the organisation is optimising for - the drive to minimise costs and maximise innovation are typically mutually exclusive.