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<h1><a href="index.html">All files</a> helpers.js</h1>
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<span class="strong">67.85% </span>
<span class="quiet">Statements</span>
<span class='fraction'>19/28</span>
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<span class="strong">58.82% </span>
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<span class='fraction'>10/17</span>
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<span class="strong">100% </span>
<span class="quiet">Functions</span>
<span class='fraction'>3/3</span>
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<span class="strong">70.37% </span>
<span class="quiet">Lines</span>
<span class='fraction'>19/27</span>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">require('dotenv').config();
const fetch = require('node-fetch');
const DEFAULT_URL = 'http://127.0.0.1:3007/mcp';
const MCP_URL = process.env.MCP_URL || DEFAULT_URL;
async function callTool(name, args = <span class="branch-0 cbranch-no" title="branch not covered" >{})</span> {
const body = {
jsonrpc: '2.0',
id: Math.floor(Math.random() * 100000),
method: 'tools/call',
params: { name, arguments: args }
};
const res = await fetch(MCP_URL, {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Accept': 'application/json',
'x-api-key': process.env.YOUTUBE_MCP_API_KEY || 'test-key'
},
body: JSON.stringify(body)
});
<span class="missing-if-branch" title="if path not taken" >I</span>if (!res.ok) {
<span class="cstat-no" title="statement not covered" > throw new Error(`HTTP ${res.status}: ${res.statusText}`);</span>
}
return res.json();
}
function parseToolResponse(resp, toolName) {
<span class="missing-if-branch" title="if path not taken" >I</span>if (resp.error) {
<span class="cstat-no" title="statement not covered" > throw new Error(`Tool ${toolName} returned error: ${resp.error.message}`);</span>
}
const text = resp.result?.content?.[0]?.text;
<span class="missing-if-branch" title="if path not taken" >I</span>if (!text) {
<span class="cstat-no" title="statement not covered" > throw new Error(`Tool ${toolName} returned no content`);</span>
}
// Check if it's a YouTube API error by looking for common error patterns
<span class="missing-if-branch" title="else path not taken" >E</span>if (text.includes('YouTube API error') || <span class="branch-1 cbranch-no" title="branch not covered" >text.includes('403 Forbidden'))</span> {
try {
const errorObj = JSON.parse(text);
<span class="cstat-no" title="statement not covered" > throw new Error(`YouTube API key issue: ${errorObj.message}. Please check your YOUTUBE_API_KEY in .env file.`);</span>
} catch (parseError) {
throw new Error(`YouTube API key issue: ${text}. Please check your YOUTUBE_API_KEY in .env file.`);
}
}
<span class="cstat-no" title="statement not covered" > try {</span>
<span class="cstat-no" title="statement not covered" > return JSON.parse(text);</span>
} catch (parseError) {
<span class="cstat-no" title="statement not covered" > throw new Error(`Tool ${toolName} returned invalid JSON: ${text.substring(0, 100)}...`);</span>
}
}
async function ensureServer() {
try {
const health = await fetch(MCP_URL.replace('/mcp', ''));
<span class="missing-if-branch" title="if path not taken" >I</span>if (!health.ok) <span class="cstat-no" title="statement not covered" >throw new Error('Server not healthy');</span>
} catch (e) {
<span class="cstat-no" title="statement not covered" > throw new Error(`Cannot connect to server at ${MCP_URL}. Start it with: npm run dev`);</span>
}
}
module.exports = { callTool, parseToolResponse, ensureServer, MCP_URL };
</pre></td></tr></table></pre>
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at 2025-08-08T18:58:38.144Z
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