As part of my workshop on “Introduction to Contract Testing with Pact”. I ask people to share their experiences with API issues/changes which have caused production issues.
You are supporting 2 versions of the API for legacy systems. You make contract changes to both API’s due to sharing the base model which causes the V1 API to break due to this being a breaking change. You were not aware V1 were using this API in that way causing downtime for a critical part of your business operations.
As part of keeping your API responses clean and concise, you implement json serializer which strips out null values from the response. However one of your consumers relies on this value to exist within the API response even if it returns null, therefore causing the Web App to return an error on a mandatory field causing errors to be thrown where they shouldn’t.
Do you have similar experiences, can you share them with the community and this will give me more examples to share as part of my 99 minute workshop. Look forward to hearing your war stories.