In this talk, we are going to explain what we did @ MODO (a new mobile payment solution similar to Bizum) to develop from the ground up a single platform that provides multiple functionalities to the biggest banks in Argentina, using OpenAPI/Swagger and a design-first approach.

We will focus the talk on the lesson we learned by implementing the solution: from architectural design pitfalls to how to channel valuable feedback from multiple consumers effectively. Or, in short, how to find the common ground to evolve together in an agile way, without breaking anything.

It targets a beginner and intermediate audience.

We will start with an introduction of the topics: OpenAPI, Swagger, Public APIs, and then we'll move to the business requirements of the particular scenario.

Then we will present the lesson learned and finalize with an open conclusion to promote a healthy discussion between peers.