README.md

GraphQL API for account inquiry

Account inquiry engine that exposes GraphQL endpoint for querying data stored in MongoDB

Tech stack:

• Sprint Boot
• Netflx Domain Graph Service framework
• Embedded MongoDB is used to simplify setup and testing

The project is still in POC stage. Contributions welcome!

Get Started

Checkout the GraphQL Schema. Run the project by ./mvnw clean spring-boot:run, then use browser to navigate to http://localhost:8080/graphiql to use the GraphQL navigator.

Query example:

{
    CasaAccount(accountId: "123") {
            accountId
            balance
            currency
            transactions {
                edges {
                    node {
                        refId
                    }
                }
                pageInfo {
                    hasPreviousPage
                    hasNextPage
                }
            }
    }
}

Result

{
  "data": {
    "CasaAccount": {
      "accountId": "123",
      "balance": 1000,
      "currency": "SGD",
      "transactions": {
        "edges": [
          {
            "node": {
              "refId": "10000001",
              "currency": "SGD",
              "amount": 101
            }
          },
          {
            "node": {
              "refId": "10000002",
              "currency": "SGD",
              "amount": 102
            }
          },
          {
            "node": {
              "refId": "10000003",
              "currency": "SGD",
              "amount": 103
            }
          },
          {
            "node": {
              "refId": "10000004",
              "currency": "SGD",
              "amount": 104
            }
          },
          {
            "node": {
              "refId": "10000005",
              "currency": "SGD",
              "amount": 105
            }
          },
          {
            "node": {
              "refId": "10000006",
              "currency": "SGD",
              "amount": 106
            }
          },
          {
            "node": {
              "refId": "10000007",
              "currency": "SGD",
              "amount": 107
            }
          },
          {
            "node": {
              "refId": "10000008",
              "currency": "SGD",
              "amount": 108
            }
          },
          {
            "node": {
              "refId": "10000009",
              "currency": "SGD",
              "amount": 109
            }
          },
          {
            "node": {
              "refId": "10000010",
              "currency": "SGD",
              "amount": 110
            }
          }
        ],
        "pageInfo": {
          "hasPreviousPage": false,
          "hasNextPage": true,
          "endCursor": "1"
        }
      }
    }
  }
}