Event object is always empty with no query params in netlify functions

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netlify site name. geralds-test-app.netlify.app

I have a brand new angular project with netlify that has a single endpoint that calls a test function. The function/endpoint is being called however the event object is always empty and I can not pass query params or a request body to it. I’ve spent 2 nights trying to resolve the issue to no avail.

This is my output when I start up with netlify dev. Notice event is empty and there are no query params.

Request from ::1: GET /.netlify/functions/test-params?id=3
Received event: {}
Event object: Request {
  method: 'GET',
  url: 'http://localhost:3000/.netlify/functions/test-params?id=3',
  headers: Headers {
    'x-forwarded-for': '::1',
    'x-nf-blobs-info': 'eyJ1cmwiOiJodHRwOi8vbG9jYWxob3N0OjU5NzEwIiwidXJsX3VuY2FjaGVkIjoiaHR0cDovL2xvY2FsaG9zdDo1OTcxMCIsInRva2VuIjoiMTQ5MWZiMDEtOGJmNi00MzZkLWI2MjctOGY3YmI2NWUwY2QzIn0=',
    'x-nf-account-info': 'eyJpZCI6IjY4NzViYzU1NTFiYWZlMjIzNjFlMTdhNiJ9',
    'x-nf-site-info': 'eyJpZCI6IjlkMWMyMzBmLWVkNmMtNGNkNC1hNGIzLTEzZTUwNWExNjM2MSIsIm5hbWUiOiJnZXJhbGRzLXRlc3QtYXBwIiwidXJsIjoiaHR0cDovL2xvY2FsaG9zdDozMDAwIn0=',
    'x-nf-deploy-context': 'dev',
    'x-nf-deploy-id': '0',
    'x-nf-geo': 'eyJjaXR5IjoiU291dGggSm9yZGFuIiwiY291bnRyeSI6eyJjb2RlIjoiVVMiLCJuYW1lIjoiVW5pdGVkIFN0YXRlcyJ9LCJzdWJkaXZpc2lvbiI6eyJjb2RlIjoiVVQiLCJuYW1lIjoiVXRhaCJ9LCJ0aW1lem9uZSI6IkFtZXJpY2EvRGVudmVyIiwibGF0aXR1ZGUiOjQwLjU1MjYsImxvbmdpdHVkZSI6LTExMS45NDUzLCJwb3N0YWxDb2RlIjoiODQwOTUifQ==',
    'accept-encoding': 'gzip, deflate',
    'user-agent': 'node',
    'sec-fetch-mode': 'cors',
    'accept-language': '*',
    accept: 'application/json, text/plain, */*',
    connection: 'close',
    host: 'localhost:3000',
    'x-nf-request-id': '01K0X3MVFMHEQF22T86Y0RNTB6',
    'client-ip': '::1',
    'x-nf-client-connection-ip': '::1',
    'x-nf-account-id': '6875bc5551bafe22361e17a6',
    'x-nf-site-id': '9d1c230f-ed6c-4cd4-a4b3-13e505a16361'
  },
  destination: '',
  referrer: 'about:client',
  referrerPolicy: '',
  mode: 'cors',
  credentials: 'same-origin',
  cache: 'default',
  redirect: 'follow',
  integrity: '',
  keepalive: false,
  isReloadNavigation: false,
  isHistoryNavigation: false,
  signal: AbortSignal { aborted: false }
}
HTTP Method: undefined
Query parameters: undefined
Response with status 200 in 279 ms.

Here are my project specs from my package.json:

"dependencies": {
    "@angular/common": "^20.0.0",
    "@angular/compiler": "^20.0.0",
    "@angular/core": "^20.0.0",
    "@angular/forms": "^20.0.0",
    "@angular/platform-browser": "^20.0.0",
    "@angular/platform-server": "^20.0.0",
    "@angular/router": "^20.0.0",
    "@angular/ssr": "^20.0.5",
    "@netlify/angular-runtime": "^2.4.0",
    "express": "^5.1.0",
    "rxjs": "~7.8.0",
    "tslib": "^2.3.0",
    "zone.js": "~0.15.0"
  },
  "devDependencies": {
    "@angular/build": "^20.0.5",
    "@angular/cli": "^20.0.5",
    "@angular/compiler-cli": "^20.0.0",
    "@types/express": "^5.0.1",
    "@types/jasmine": "~5.1.0",
    "@types/node": "^20.17.19",
    "jasmine-core": "~5.7.0",
    "karma": "~6.4.0",
    "karma-chrome-launcher": "~3.2.0",
    "karma-coverage": "~2.2.0",
    "karma-jasmine": "~5.1.0",
    "karma-jasmine-html-reporter": "~2.1.0",
    "typescript": "~5.8.2"
  }

Node version 20.19.4
npm version 11.4.2

Here is my app.ts

import { HttpClient } from '@angular/common/http';
import { Component, OnInit } from '@angular/core';
import { RouterOutlet } from '@angular/router';

@Component({
  selector: 'app-root',
  imports: [RouterOutlet],
  templateUrl: './app.html',
  styleUrl: './app.scss'
})
export class App implements OnInit {
  protected title = 'test-app';

  constructor(private http: HttpClient) { }

  ngOnInit(): void {
    this.http.get(`/.netlify/functions/test-params?id=3`).subscribe();
  }
}

Here is my test function from my functions folder

export default async (event, context) => {
  console.log('Received event:', JSON.stringify(event, null, 2));
  console.log("Event object:", event);
  console.log("HTTP Method:", event.httpMethod);
  console.log("Query parameters:", event.queryStringParameters);

  return new Response(JSON.stringify({
    message: 'Invoke test successful',
    qs: event.queryStringParameters || 'no query params'
  }), {
    headers: { 'Content-Type': 'application/json' },
    status: 200
  });
};

Here is my .toml

[build]
  command = "npm run build"
  functions = "netlify/functions"
  publish = "dist"

[[redirects]]
  from = "/*"
  to = "/index.html"
  status = 200

[dev]
  functions = "functions"
  command = "ng serve"
  port = 3000
  publish = "dist"

What am I doing wrong? Why can’t I pass query params to my netlify functions/endpoints?

I have also tried with netlify-cli v21 and node 20.19.4.
I have tried using curl e.g (curl "http://localhost:8888/.netlify/functions/yourFunctionName?param1=value1&param2=value2")
I have tried netlify functions:invoke
I have tried uninstalling and reinstalling netlify
I have tried creating a complety new angular/netlify app from scratch

2

The correct code:

export default async (request, context) => {
  // invalid: console.log('Received event:', JSON.stringify(event, null, 2));
  console.log("Request:", request);
  console.log("HTTP Method:", request.method);
  console.log("Query parameters:\n");
  context.url.search.forEach((value, key) => {
    console.log(`${key}: ${value}\n`);
  });

  return Response.json({
    message: 'Invoke test successful',
    // change this as needed: qs: event.queryStringParameters || 'no query params'
  });
};
3

The actual issue was the export line on my functions. I replaced export default async (event, context) with export const handler = async (event, context) and it worked.
I figured it out a few days after posting the question, but I couldn’t find a way to post an answer to the question on this form. It looks like now I can replay though so IDK what was going on.

4

What you have done is shifted to Netlify Functions v1 which is an older API and no longer receiving any updates. What I suggested (and you were already using) was Functions API v2, which is the recommended standard.