Unlock the power of graph theory in GraphQL API development to avoid the pitfalls of a "RESTQL API." This article explores how graph theory intersects with GraphQL, providing insights into the significance of understanding graph theory in building robust APIs. Learn from real-world experiences, practical implications, and a transformational story that showcases the impact of resolving subtypes. Discover strategies to embrace the graph-like nature of GraphQL, optimize query resolution, and unlock the true potential of GraphQL API development.