[BUG] TypeError: Inngest is not a constructor при использовании версии 3.35.0

[gHashTag]

Description: I encountered a problem using the inngest library. When I try to create a client using new Inngest(...), I get the error:

Code
TypeError: Inngest is not a constructor
Steps to reproduce:

Installed the inngest library version 3.37.0.
Used the following code:
TypeScript

import { createClient } from 'inngest';
import { serve } from 'inngest/express';
import { INNGEST_EVENT_KEY } from '@/config';


console.log('🔄 Initializing Inngest client...');
console.log('🔑 INNGEST_EVENT_KEY available:', !!INNGEST_EVENT_KEY);

if (INNGEST_EVENT_KEY) {
  console.log(
    '🔑 INNGEST_EVENT_KEY first 10 chars:',
    INNGEST_EVENT_KEY.substring(0, 10) + '...'
  );
}


export const inngest = new Inngest({
  id: 'ai-training-server',
  eventKey: process.env.INNGEST_EVENT_KEY,
})

export const serveHandler = serve({
  client: inngest,
  functions: [], // 
});

console.log('✅ Inngest client created:', !!inngest);

export const functions = [];

Actual behavior: Error:

Code
TypeError: Inngest is not a constructor
Additional information:

Library version: 3.35.0
Runtime: Node.js v23.4.0
TypeScript: v5.8.3
If you want, I can help prepare the full text of the Issue or answer any other questions!

[linear]

INN-4678 [BUG] TypeError: Inngest is not a constructor при использовании версии 3.35.0

[jpwilliams]

Hi @gHashTag,

It looks like you're not importing Inngest here. You'll need to change your import:

- import { createClient } from 'inngest';
+ import { Inngest } from 'inngest';