README.md

Spring Boot Graphql Web Mvc

This project demonstrates the Graphql client and server using Spring Boot Web Mvc stack.

Getting Started

Required Tools

• Java 21
• Maven 3.5.3
• Docker Engine Latest Version

Run Build

./mvnw clean install

Run application with PostgresQL DB

./mvnw clean test-compile exec:java@run-local

Urls

• Graphql: http://localhost:8080/graphql-web-mvc/graphql
• Graphql Schema: http://localhost:8080/graphql-web-mvc/graphql/schema
• Graphiql: http://localhost:8080/graphql-web-mvc/graphiql

Verify CORS

curl -I -X OPTIONS -H "Origin: https://www.example.com" -H 'Access-Control-Request-Method: GET' "http://localhost:8080/graphql-web-mvc/graphql" 2>&1 | grep -i 'Access-Control-Allow-Origin'

GraphQL with CURL

Query with CURL

echo '{
    "query": "
        query ListBooks($bookIds: [String!]!, $authorLimit: Int!) {
            listBooks(bookIds: $bookIds) {
                id
                name
                rating
                isbn
                publishedDateTime
                authors(limit: $authorLimit) {
                    id
                    name
                    books {
                        id
                        name
                        rating
                        isbn
                        publishedDateTime
                    }
                }
            }
        }
    ",
    "variables": {
      "bookIds": [
            "1234"
      ],
      "authorLimit": 3
    }
} ' | tr -d '\n' | curl \
-X POST \
-H "Content-Type: application/json" \
-s \
-d @- \
"http://localhost:8080/graphql-web-mvc/graphql" \
| jq .

Mutation with CURL

echo '{
    "query": "
        mutation CreateBookAuthorNuclear(
            $bookInput: BookInput!,
            $authorInput: AuthorInput!
        ) {
            createBookWithAuthor(authorInput: $authorInput, bookInput: $bookInput) {
                success,
                message,
                book {
                    id
                    name,
                    isbn,
                    publishedDateTime,
                    rating,
                    authors {
                        id
                        name
                    }
                }
                author {
                    id,
                    name,
                    books {
                        id,
                        name,
                        isbn,
                        publishedDateTime,
                        rating
                    }
                }
            }
        }
    ",
    "variables": {
      "bookInput": {
        "id": "1234",
        "name": "sample-book",
        "rating": null,
        "publishedDateTime": "2024-04-25T14:00:00.455Z",
        "isbn": "ISBN-2024-04-25-001"
      },
      "authorInput": {
        "id": "2345",
        "name": "sample-author"
      }
    }
} ' | tr -d '\n' | curl \
-X POST \
-H "Content-Type: application/json" \
-s \
-d @- \
"http://localhost:8080/graphql-web-mvc/graphql" \
| jq .