Talk: Consumer Driven Contract Testing -TTD for micro-services

Talk description

Title:	Consumer Driven Contract Testing -TTD for micro-services
Short synopsis:	In today's micro-services architecture, in order to deliver each piece of work without affecting other functionality is the critical thing. For bringing confidence to the team of not breaking other functionality, we need to have some way of assurance in place. Then system integration tests, functional tests, sometimes manual tests are the older ways to that confidence. This process may take more than 1 day to get the go-ahead to deliver something. If the services are handled by different teams or the different company altogether, then it might go beyond 1 day for delivering some functionality. Then the question comes about the, "are we truly agile", in today's so-called "micro-services" architecture? To solve this problem and fasten the delivery process, the community came up with the idea of contracts for integrations between services. Those contracts need to pass with every build going into production to ensure the integrations with other systems/services are working fine with lesser time & early feedback. While working on micro-services architecture from last 3 years, I have seen the speed of delivering functionality has increased drastically with the help of Consumer Driven Contracts, often called "CDC". A Contract is a collection of agreements between Consumer and a Provider that describes the interactions that can take place between them. Consumer Driven Contracts(CDCs) is a pattern that drives the development of the Providers from its Consumer's point of view. It is TDD for micro-services. Considering the fact that micro-services architecture becoming so popular nowadays, we also need to move on or improve our test strategies to adopt the new architecture. At our company "N26", we deliver more than 200 micro-services, handled by more than 20 teams now. Waiting for each team to respond is the too lengthy process. Rather we are in the process of automating this with CDCs, which helps us to deliver faster and independently. By this, we get faster feedback from dependent services about breaking changes without waiting for days to get feedback, which will lead to faster delivery with the confidence of not breaking other functionality. I will be doing a practical demo of CDC in the workshop to show how exactly this works and faster than another feedback mechanism for micro-services integration. Happy CDC! Max size: 500 chars
Long synopsis (optional):	Outline/structure of the Session: - Introduction to micro-service common deployment patterns - The pitfall of a couple of deployment strategies - Introduction to Consumer-Driven Contract Tests - How CDC helps in speeding up the Continues delivery - Experience using CDC from more than the year. - Demo of CDC for two micro-services integration. - Q&A about contract testing Learning Outcome - New testing strategy to fasten continues delivery - Deploying services independently with confidence - Understanding contract testing with example - Automating service dependency Target Audience Developers, Quality Analyst Previous workshop slides: https://www.slideshare.net/slideshow/embed_code/key/CeCsB1Mc8bTsCL?feature=oembed Max size: 5000 chars
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