无法运行JSON RPC测试用例自动化的Node.js脚本求助

Hey, let's work through your issues step by step—first fixing that npm command error, then getting your RPC script to work as expected:

1. Resolve the npm run Command Issue #

That missing script error pops up because npm run is designed to execute pre-defined scripts in your package.json, not run individual JavaScript files directly.

To launch your test script right away, use the node command instead:

node test/resources/nv-jsonrpc-tests/pingServer.spec.js

If you’re using a test framework like Jest or Mocha, first add a test script to your package.json:

{
  "scripts": {
    "test": "jest"
  }
}

Then run the single test file with:

npm test test/resources/nv-jsonrpc-tests/pingServer.spec.js

(Note: For Mocha, add a space and -- before the file path: npm test -- test/resources/...)

2. Fix the RPC Client Script Logic #

Looking at your code, there are a couple of critical issues that will block you from getting that expected "Pong" response:

• Incorrect path value: The path should be the specific endpoint path on your RPC server (like /jsonrpc), not https://. If your server uses HTTPS, use rpc.ClientSecure instead of rpc.Client, or add a protocol: 'https' parameter to the options object.
• Parameter validation: Double-check that your server’s Ping method actually accepts a classname parameter—mismatched or unrecognized params will cause the request to fail.

Here’s the corrected script:

var rpc = require('node-json-rpc');

// Use rpc.ClientSecure instead if your server uses HTTPS
var options = {
  port: 8080,
  host: '127.0.0.1',
  // Update this to your actual RPC endpoint path
  path: '/jsonrpc',
  strict: true,
  // Uncomment this line if using an HTTPS server
  // protocol: 'https',
};

var client = new rpc.Client(options);

client.call(
  {
    "jsonrpc": "2.0",
    "method": "Ping",
    "params": {classname: 'NServer'},
    "id": 1
  },
  function (err, res) {
    if (err) {
      console.error('RPC Request Failed:', err);
    } else {
      console.log('RPC Response:', res);
    }
  }
);

3. Quick Troubleshooting Checks #

• Confirm your RPC server is running and actively listening on port 8080
• Verify the server’s Ping method is coded to return a "Pong" response when given the classname: 'NServer' parameter
• If using HTTPS or firewall rules, ensure there’s no connection block between your client and server

内容的提问来源于stack exchange，提问作者Neha C