Developers tend to centralise the fragments definitions and use them in each query where the entity is used, even if just a subset of the attributes is necessary. Unlike rest, the client needs to be more careful on query optimization because the server must process the client's query and create a tailored response. If the client's query is not optimized, it can lead to the server having to process more data than is necessary, resulting in slower response times. mercurius-explain is a simple and lightweight Mercurius plugin that records how many times a GraphQL resolver is invoked and how long it took to retrieve the data, which helps to keep track of performance changes during development and to troubleshoot possible bottlenecks.

Session Speakers

Marco Ippolito

Developer Experience Engineer @NearForm | Node.js core member