Beyond Issue Publics? Curating a Corpus of Generic Danish Debate in the Dying Days of the Facebook API

We recount and reflect on our experience of interacting with the data infrastructure of Facebook during some pivotal months of change in early 2018. We show how the technical affordances of the Application Programming Interface (API) have critical consequences for the practice of digital controversy mapping and hence argue for the necessity of engaging with changes to these affordances as a consequential data moment for digital STS. The tools that controversy mappers have developed over the past 20 years have focused predominantly on the construction and curation of issue-specific datasets. This is partly justified in the theoretical positions underpinning actor-network theoretical controversy analysis, but it is also technically more convenient than demo- or geographical delimitations. Through the example of a mapping of the Danish HPV debate, we demonstrate the necessity of being able to challenge the issue-specific approach, and we show how this involves direct engagement with the API. We thus provide an inside perspective from a research practice that relies heavily on data from digital platforms and discuss how the closure of public access to API endpoints severely limits this kind of critical engagement.