generateTempToken()
Generates a temporary authentication token for AssemblyAI’s real-time transcription API.
Function Signature
async function generateTempToken(expiresInSeconds)
tokenGenerator.js:4
Parameters
The number of seconds until the token expires. Maximum value is 600 seconds (10 minutes).
Return Value
Returns a Promise<string> that resolves to the temporary authentication token.
return response.data.token;
Error Handling
The function throws an error if:
- The AssemblyAI API key is missing or invalid
- The API request fails due to network issues
- The AssemblyAI token generation endpoint is unavailable
Error messages are logged to the console with details from the API response:
console.error("Error generating temp token:", error.response?.data || error.message);
throw error;
Implementation
The function makes an HTTP GET request to AssemblyAI’s token generation endpoint:
const url = `https://streaming.assemblyai.com/v3/token?expires_in_seconds=${expiresInSeconds}`;
try {
const response = await axios.get(url, {
headers: {
Authorization: process.env.ASSEMBLYAI_API_KEY,
},
});
return response.data.token;
} catch (error) {
console.error("Error generating temp token:", error.response?.data || error.message);
throw error;
}
Environment Variables
Your AssemblyAI API key. Must be set in the .env file and loaded via dotenv.
Usage Example
const { generateTempToken } = require("./tokenGenerator");
// Generate a token that expires in 60 seconds
try {
const token = await generateTempToken(60);
console.log("Token generated:", token);
} catch (error) {
console.error("Failed to generate token:", error);
}
Integration
This function is used by the Express server in server.js:12 to provide tokens to the client application:
const token = await generateTempToken(60); // Max value 600
res.json({ token });