Your supergraph is ready to start receiving client operation s! If you have existing client applications that connect directly to your GraphQL API, you can update their GraphQL endpoint URL to your router's URL. As its name suggests, GraphOS is a platform for building and managing graphs . Each graph corresponds to a GraphQL service in your organization.

Congratulations! 🎉 You've built your first cloud supergraph on GraphOS. Next, we'll cover some of the most common and important actions to perform on your supergraph, including: Allows the easy translation of existing services and data sources into GraphQL subgraphs and supergraphs. Read full comparison Good GraphQL federation examplesA real supergraph schema includes additional information that tells your router which subgraph is responsible for which types and field s. Learn more about composition. Server instances If the Next button is inactive, Studio hasn't obtained your API's schema ! Make sure to provide it using one of the methods described in the previous few steps. You can view the results of each launch that takes place whenever you update a service's schema , helping you resolve any issues that might occur.

Without any restrictions in place, clients could effectively enumerate through all nodes in a single request like the one above while slipping past other brute force protections. Limiting query breadth or using query cost analysis can help protect a GraphQL API from this type of abuse. In the context of particle physics, a supergraph is a Feynman diagram that calculates scattering amplitudes in a supersymmetric theory using the advantages of the superspace formalism. Additionally, tracing data in GraphOS can help you monitor API performance and errors. You can configure alerts to push notifications to your team when something goes wrong, whether it’s an increase in requests per minute, changes in your p50, p95, or p99 response times, or errors in operation s run against your graph. For example, a notification about a sudden increase in the error percentage might indicate that a bad actor is trying to circumvent disabled introspection and learn about a graph's schema by rapidly guessing and testing different field names. And if you want to leverage error data outside of GraphOS as well, you can also use the Apollo Router 's support for OpenTelemetry to integrate with other APM tools. Restrict write access to your graph You can preview how your supergraph 's router resolves data for an operation by inspecting the operation's query plan in the Response pane.Given the potential scope of developing a bespoke query cost analysis solution, you should first verify that your API actually needs one. For graphs that are consumed by first-party clients only, other demand control mechanisms might suffice. If you do need to add comprehensive query cost analysis to your GraphQL API, then the work that IBM has done in this area to develop the GraphQL Cost Directives specification may be instructive. Their work in this area was originally published in a paper (with a supplemental video to highlight some of the key concepts) and is further explored in this series of blog posts . Batched requests The Apollo library provides a gateway that can be used as a supergraph server. Setting it up is enough to pass the subgraph endpoints as parameters. You can learn more about this by reading the official documentation for implementing a gateway with Apollo server. Remember, too, that a gateway can use both GraphQL and REST endpoints, translating requests between the two to avoid any duplication of code. Again, this delivers functionality that GraphQL alone does not. Rather than relying on custom code to combine subgraphs, subgraphs reference and extend each other through a principled set of primitives. Thanks to our incredible developer community, Federation supports subgraphs written in over 20 programming languages and a growing number of GraphQL-native services and products.