A GraphQL API represents an AWS AppSync GraphQL API. AWS AppSync is a GraphQL service that offers developers more flexibility and efficiency when implementing an API.
Key Benefits of AWS AppSync include:
There are trade-offs that developers need to consider when choosing between a GraphQL API and a traditional REST API. A REST API offers multiple endpoints to access certain resources in a data source. If a client requests records from multiple resources, it requires multiple round-trips to each endpoint to gather that data. This leads to over-fetching of information with no way for the client to control what data is returned to them.
GraphQL is a query language that allows clients to declaratively communicate their data requirements from a data source. Instead of multiple endpoints, GraphQL treats the entire data source as one endpoint, using its declarative query language to gather and return custom data in one round-trip. Users are able to connect to any AppSync supported data source, specify what data they want, in the format they want it in.
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