How would your server handle it if the query was 10,000 deep? This may become a very expensive operation, at some point pinning a CPU on the server or perhaps the database. This is a possible DOS vulnerability. We want a way to validate the complexity of incoming queries. This implementation lets you limit the total depth of each operation. Quantifying Complexity Deciding exactly when a GraphQL qu
July 25, 2017Apollo Link: The modular GraphQL network stack When we started building Apollo Client, our goal was to empower people to use GraphQL in the way they want. This goal, and countless conversations with developers using GraphQL, drives all of our design decisions. (For example, we started by integrating with Redux because that’s what most React developers were familiar with.) We found tha
April 11, 2017How to Use Subscriptions in GraphiQL There has been a lot of buzz about GraphQL Subscriptions in the community recently, and a lot of people are excited about the subscriptions RFC opened by Rob Zhu from Facebook. If you haven’t tried GraphQL subscriptions yet, check out our docs to learn how to add subscriptions to your existing Node.js GraphQL server. You can also easily try buildi
When we announced and open-sourced GraphQL and Relay this year, we described how they can be used to perform reads with queries, and to perform writes with mutations. However, oftentimes clients want to get pushed updates from the server when data they care about changes. To support that, we’ve introduced a third operation into the GraphQL specification: subscription. Event-based subscriptions The
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