getHealth

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Parameters

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Response

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Code Examples

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Basic Request

curl https://fra.rpc.orbitflare.com?api_key=YOUR-API-KEY -X POST -H "Content-Type: application/json" -d '{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "getHealth"
}'

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Alternative HTTP GET Request

curl https://fra.rpc.orbitflare.com?api_key=YOUR-API-KEY/health

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Using web3.js

import { Connection } from '@solana/web3.js';

const connection = new Connection('https://fra.rpc.orbitflare.com?api_key=YOUR-API-KEY');

const health = await connection.getHealth();
console.log('Node health:', health);

// Example: Check if node is healthy
const isHealthy = health === 'ok';
if (!isHealthy) {
  console.warn('Node is not healthy:', health);
}

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Notes

1. This method is commonly used for load balancer health checks
2. The HTTP GET endpoint /health provides the same information
3. A node is considered “behind” if it’s more than HEALTH_CHECK_SLOT_DISTANCE slots from the latest cluster slot
4. The “unknown” status typically indicates the node is bootstrapping or having issues

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Best Practices

1. Use this endpoint for basic health monitoring
2. Implement circuit breakers based on health status
3. Consider using more detailed methods for specific health metrics:
   • getVersion for software version
   • getSlot for slot progress
   • getBlockHeight for block height
4. Set appropriate timeouts for health checks
5. Handle all possible response values

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Common Errors

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Use Cases

1. Load Balancer Configuration
   location /health {
     proxy_pass http://backend;
     proxy_next_upstream error timeout http_503;
   }
   
2. Health Monitoring
   async function monitorHealth(endpoint: string) {
     const connection = new Connection(endpoint);
     try {
       const health = await connection.getHealth();
       if (health !== 'ok') {
         alertNodeUnhealthy(endpoint, health);
       }
     } catch (error) {
       alertNodeError(endpoint, error);
     }
   }
   
3. Client-Side Load Balancing
   async function getHealthyEndpoint(endpoints: string[]) {
     for (const endpoint of endpoints) {
       const connection = new Connection(endpoint);
       try {
         const health = await connection.getHealth();
         if (health === 'ok') {
           return endpoint;
         }
       } catch (error) {
         continue;
       }
     }
     throw new Error('No healthy endpoints available');
   }
   
4. System Status Dashboard
   interface NodeStatus {
     endpoint: string;
     health: string;
     lastChecked: Date;
   }
   
   async function updateDashboard(nodes: NodeStatus[]) {
     for (const node of nodes) {
       const connection = new Connection(node.endpoint);
       try {
         node.health = await connection.getHealth();
       } catch (error) {
         node.health = 'error';
       }
       node.lastChecked = new Date();
     }
     renderDashboard(nodes);
   }