Using GraphQL inside REST API for data querying

Question

I have an existing Node.js REST API that currently uses pg-promise for querying data from database. But instead I want to use GraphQL for querying the data from database. So, I want to use GraphQL only internally. All tutorials I found show how to build a GraphQL server. But can I use GraphQL only internally for querying data as well?

Thanks!

Answer 1

Yes, but you'll still need to set up a graphql server.

Databases speak SQL and won't understand graphql directly. You need a separate application to receive the graphql and query the database.

+-------------+           +------------------+       +----------+
+ Application +-----------+ Application      +-------+ database +
+             +  graphql  + (graphql server) +  SQL  +          +
+-------------+           +------------------+       +----------+