Why you should measure the cost of your GraphQL queries, and how you should do it. — This is a brief for the research paper A Principled Approach to GraphQL Query Cost Analysis, published at ESEC/FSE 2020. Alan Cha led the work, with help from Erik Wittern, Guillaume Baudart, me, Louis Mandel, and Jim Laredo. Most of these authors are affiliated with IBM Research or IBM’s product…