Having spent a fair amount of time recently developing custom activities for Azure Data Factory I thought it would be useful to share some of my findings in a series of blog posts on the subject. This includes some simple tips, suggestions for code structure and development, and also more advanced topics such as debugging, testing and coding using Cross Application domains (to allow usage of assemblies later than those provided by the ADF service).
Posts in the Series
Part 1: Configuration Settings
Part 2: Encapsulating Common Functionality
Part 3: Debugging Custom Activities in Visual Studio
Part 4: Testing ADF Pipelines
Part 5: Using Cross Application Domains in ADF