Leveraging GraphQL for Efficient Data Fetching in Node.js

{
  "title": "Leveraging GraphQL for Efficient Data Fetching in Node.js",
  "description": "Techniques for integrating GraphQL into Node.js applications to optimize data retrieval and reduce over-fetching.",
  "category": "Node.js Cursor Rules",
  "rules": [
    {
      "id": "graphql-use-dataloader",
      "description": "Implement DataLoader to batch and cache database requests, reducing the N+1 query problem and improving performance.",
      "severity": "error",
      "pattern": "const DataLoader = require('dataloader');",
      "fix": "Ensure that DataLoader is utilized in your resolvers to batch and cache database requests."
    },
    {
      "id": "graphql-avoid-over-fetching",
      "description": "Design GraphQL queries to request only necessary fields, avoiding over-fetching and reducing response payload size.",
      "severity": "warning",
      "pattern": "query\\s+\\w+\\s*\\{[^}]*\\}",
      "fix": "Review your GraphQL queries to ensure they only request the fields required by the client."
    },
    {
      "id": "graphql-implement-pagination",
      "description": "Implement pagination for queries that return large datasets to improve performance and manageability.",
      "severity": "error",
      "pattern": "query\\s+\\w+\\s*\\{[^}]*\\}",
      "fix": "Ensure that your GraphQL queries include pagination parameters such as 'limit' and 'offset' or use cursor-based pagination."
    },
    {
      "id": "graphql-enable-caching",
      "description": "Implement caching strategies to store frequently requested data and reduce database load.",
      "severity": "warning",
      "pattern": "const\\s+\\w+\\s*=\\s*require\\('redis'\\);",
      "fix": "Integrate caching mechanisms like Redis to store and retrieve frequently accessed data efficiently."
    },
    {
      "id": "graphql-limit-query-complexity",
      "description": "Implement query complexity analysis to prevent clients from executing overly complex queries that could degrade performance.",
      "severity": "error",
      "pattern": "const\\s+\\w+\\s*=\\s*require\\('graphql-query-complexity'\\);",
      "fix": "Use libraries like 'graphql-query-complexity' to analyze and limit the complexity of incoming queries."
    }
  ]
}