"Sometimes it's very difficult to get the exact details from the server while performing rest operations because it deals with over fetching and under fetching which is the two drawbacks of REST. It could lead to make multiple calls to the endpoints. That is the beauty of 'GraphQL' which is single point of solution or single API for querying and mutating the data. You can fetch the exact data which you want. You just need to define the schema (entry point of data) and query. Resolver will help you to define the logic between the schema and query."
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GraphQL Explanation
