This should work, there is a bit at the end to print all issues but you can delete that.

authtest.js

@@ -0,0 +1,50 @@
+const axios = require('axios');
+const jwt = require('jsonwebtoken');
+const forge = require('node-forge');
+
+async function main() {
+    const privateKey = "Put your RSA key here"
+    const appId = "Put your app ID here"
+    const installationId = "put your installation ID here"
+    const repoPath = "repository path"
+
+    const jwtToken = generateJwt(appId, privateKey);
+
+    const installationToken = await getInstallationToken(jwtToken, installationId);
+    const token = installationToken.token;
+    console.log(token);
+
+    const response = await axios.get(`https://api.github.com/repos/${repoPath}/issues`, {
+        headers: {
+            Authorization: `token ${token}`,
+            Accept: 'application/vnd.github+json'
+        }
+    });
+    console.log(response.data);
+}
+
+function generateJwt(appId, privateKey) {
+    const now = Math.floor(Date.now() / 1000); // Tempo atual em segundos
+    const payload = {
+        iat: now,
+        exp: now + (10 * 60),  // Expira em 10 minutos
+        iss: appId
+    };
+
+    return jwt.sign(payload, privateKey, { algorithm: 'RS256' });
+}
+
+async function getInstallationToken(jwtToken, installationId) {
+    const url = `https://api.github.com/app/installations/${installationId}/access_tokens`;
+    const response = await axios.post(url, {}, {
+        headers: {
+            Authorization: `Bearer ${jwtToken}`,
+            Accept: 'application/vnd.github+json'
+        }
+    });
+    return response.data;
+}
+
+main().catch(error => {
+    console.error(error);
+});