bhagabati-prasad / graphql-complete-tutorial-code-only

#1// #1 - GraphQL for Beginners (express-graphql)

• This is only for beginners. Just to know that how graphQL Queries and Resolvers work.
• This also provides nested queries functionality.
• Here, every query is GraphQLObject Type.
• And Resolver is inside the Query.

#2// #2 - GraphQL wiith typeDefs using apollo-server-express

• This is the alternate and better version of GraphQL.
• This part doesn't contain nested query.
• It's only to show you that how to deal with Queries with custom query type.
• Here, query types (together as typeDefs) and resolvers are separate. -Here, express is also used to provide other routes with REST and a separate route for graphQL.

#3// #3 - GraphQL nested query with custom query resolvers (apollo-server)

• This is the same method as used in #2.
• Here, express is not used.
• This only provides the graphql API service.
• Here, it provides nested queries using custom cuery resolvers.