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By providing an API key to the router , you also automatically enable operation metrics reporting to GraphOS , enabling you visualize your graph's performance. Learn more about metrics. GraphOS automatically provisions and hosts a router for each of your supergraph s. Clients query your router instead of your individual services (also called subgraphs ). This enables the router to automatically collect operation metrics that you can then visualize in GraphOS Studio. After learning about the publishing process, you should integrate it into your CI workflow . Add another subgraph

Nice work! You've created your first cloud supergraph , which is now listed in your organization's Graphs tab: 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. In a typical monolith scenario, you would have a single application that would give you all the needed information about the different missions and crew members. Instead, what you would want is one service to manage information about missions and another service to manage information about astronauts. In this case, you could easily split your monolith into two GraphQL instances. However, now, your frontend would no longer work because it would need to call two different APIs then stitch the information together.If composition succeeds, the variant 's router automatically begins using the updated supergraph schema . This means clients can no longer query the router for field s that are defined only in the deleted subgraph . For example, you might want to set fixed costs for different kinds of nodes, or you might manually set costs on a per-type or per- field basis by annotating them with directive s (or do some combination of both). You might also have different considerations for how type complexity (the cost returning the number of field s requested) and response complexity (the cost of providing responses for the requested field s) are handled. Or for a completely different approach that doesn't explicitly count types and fields, you could set and iterate query costs based on field tracing data and set a maximum time budget per query.

Federation 1 and Federation 2 use different composition algorithms, which are implemented in different libraries: name: APOLLO_SCHEMA_CONFIG_EMBEDDED value: "true " image: prasek/supergraph-router:latest name: router ports:

What is GraphQL

Here's a powerful benefit of a cloud supergraph : because clients execute operation s against your GraphOS -managed router , the router automatically collects metrics on those operations and their field s. You can then visualize those metrics in Studio.

Your secret is encrypted and stored. Now you can use the secret's value in your router 's configuration YAML. Setting header values We recommend that you create a separate API key for each system that communicates with GraphOS . This reduces the impact whenever you need to replace an API key that might be compromised.GraphOS Studio. This is the primary web interface for GraphOS . Studio helps you monitor, manage, and collaborate on your supergraph . At the core of GraphQL’s flexibility is the fact that it decouples specific use cases from a concrete implementation. As such, you can create a dynamic API that serves many consumers with different requirements. They can modify a query to suit their needs, with no need to ask the API provider to add or modify a resource, as is the case with REST APIs. Complete the first two steps of Configuring Rover ( Obtain an API key and Provide the API key to Rover ), then return here. 2. Clone the router project template

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 Managed Federation ultimately catches all breaking changes prior before a new supergraph schema is published: After you create your Apollo account, create your first graph in GraphOS Studio by following these steps: Apollo Federation is our open specification for composing subgraphs – modular GraphQL services – together into a single supergraph. Each subgraph is a self-contained component with its own schema and server, so it can be developed, tested, and deployed independently. In the sections that follow, we will explore measures that can help mitigate the impact of malicious queries for any GraphQL API, such as limiting query depth and amount, paginating list field s where appropriate, validating and sanitizing data, setting timeouts, and guarding against batched query abuse. And for GraphQL APIs with third-party clients, we will also explore using query cost analysis to support rate limiting. Limit query depth

Apollo Federation encourages a design principle called separation of concerns . This enables different teams to work on different products and features within a single graph, without interfering with each other. Limitations of type-based separation A supergraph enables the use of powerful tooling for schema management, metrics aggregation, and change validation. Learn more about GraphOS tooling. To publish our subgraph schema , we'll first use Rover to introspect the running subgraph , then pass the obtained schema to subgraph publish . If you've created a Studio organization to collaborate with your team, invite your team members from the organization's Members tab. Client actions Add identification headers to your clients In this article, I showed how to configure, customize, and launch Apollo Router which allows combining multiple GraphQL APIs into a unified supergraph. Apollo