# EventSub webhook callback verification failed. Help me =( **URL:** \ **Category:** API\ **Created:** [January 18, 2023, 9:42pm UTC](https://discuss.dev.twitch.com/t/eventsub-webhook-callback-verification-failed-help-me/42897 "2023-01-18T21:42:45Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![tagged\_play](https://d3ovvz0v2ajtpu.cloudfront.net/user_avatar/discuss.dev.twitch.com/tagged_play/32/21978_2.png) [@tagged\_play](https://discuss.dev.twitch.com/u/tagged_play)\ **Post date:** [January 18, 2023, 9:42pm UTC](https://discuss.dev.twitch.com/t/eventsub-webhook-callback-verification-failed-help-me/42897/1 "2023-01-18T21:42:45Z")
Please help me. I’m trying to set up a callback to subscribe to EventSub. I am using framework yii2 (PHP). What am I doing wrong? I test my callback and get the following: > **Summary** > > ```auto > PS C:\Users\ma110y> twitch event trigger update-redemption -F https://tagged-play.ru/twitch-callback -s c3eb4dc7c6da0ad20397fbaa244a04446c76e9d3df71b7c99fd1057b7102729c > ✔ Request Sent. Received Status Code: 200 > ✔ Server Said: null > {"subscription":{"id":"137d104b-68eb-b00c-e322-b8961900cc41","status":"enabled","type":"channel.channel_points_custom_reward_redemption.update","version":"1","condition":{"broadcaster_user_id":"17390441"},"transport":{"method":"webhook","callback":"null"},"created_at":"2023-01-18T21:28:25.1561829Z","cost":0},"event":{"id":"137d104b-68eb-b00c-e322-b8961900cc41","broadcaster_user_id":"17390441","broadcaster_user_login":"testBroadcaster","broadcaster_user_name":"testBroadcaster","user_id":"40725345","user_login":"testFromUser","user_name":"testFromUser","user_input":"Test Input From CLI","status":"unfulfilled","reward":{"id":"8eca1920-3776-eb6c-dbda-61d044f67e09","title":"Test Reward from CLI","cost":150,"prompt":"Redeem Your Test Reward from CLI"},"redeemed_at":"2023-01-18T21:28:25.1561829Z"}} > PS C:\Users\ma110y> > > ``` On my site I see fallowing: > **Summary** > > ```auto > > [event] => stdClass Object > ( > [id] => 137d104b-68eb-b00c-e322-b8961900cc41 > [broadcaster_user_id] => 17390441 > [broadcaster_user_login] => testBroadcaster > [broadcaster_user_name] => testBroadcaster > [user_id] => 40725345 > [user_login] => testFromUser > [user_name] => testFromUser > [user_input] => Test Input From CLI > [status] => unfulfilled > [reward] => stdClass Object > ( > [id] => 8eca1920-3776-eb6c-dbda-61d044f67e09 > [title] => Test Reward from CLI > [cost] => 150 > [prompt] => Redeem Your Test Reward from CLI > ) > > [redeemed_at] => 2023-01-18T21:28:25.1561829Z > ) > > ``` Next, I register a webhook and get the following: > **Summary** > > ```auto > array(4) { > ["data"]=> > array(1) { > [0]=> > array(8) { > ["id"]=> > string(36) "90e92aed-b2d2-4b88-963d-19e564a56df1" > ["status"]=> > string(37) "webhook_callback_verification_pending" > ["type"]=> > string(14) "channel.update" > ["version"]=> > string(1) "1" > ["condition"]=> > array(1) { > ["broadcaster_user_id"]=> > string(9) "798748369" > } > ["created_at"]=> > string(30) "2023-01-18T21:21:40.969961007Z" > ["transport"]=> > array(2) { > ["method"]=> > string(7) "webhook" > ["callback"]=> > string(38) "https://tagged-play.ru/twitch-callback" > } > ["cost"]=> > int(0) > } > } > ["total"]=> > int(1) > ["max_total_cost"]=> > int(10000) > ["total_cost"]=> > int(0) > } > > ``` on my server i see this: > **Summary** > > ```auto > stdClass Object > ( > [subscription] => stdClass Object > ( > [id] => 90e92aed-b2d2-4b88-963d-19e564a56df1 > [status] => webhook_callback_verification_pending > [type] => channel.update > [version] => 1 > [condition] => stdClass Object > ( > [broadcaster_user_id] => 798748369 > ) > > [transport] => stdClass Object > ( > [method] => webhook > [callback] => https://tagged-play.ru/twitch-callback > ) > > [created_at] => 2023-01-18T21:21:40.969961007Z > [cost] => 0 > ) > > [challenge] => 7oju4NLCrEwRNYgHNVAzYXf_brHJR4J5iNDaiHZI2Qs > ) > > ``` But when I send /helix/eventsub/subscriptions, I get webhook\_callback\_verification\_failed > **Summary** > > ```auto > { > "total": 1, > "data": [ > { > "id": "90e92aed-b2d2-4b88-963d-19e564a56df1", > "status": "webhook_callback_verification_failed", > "type": "channel.update", > "version": "1", > "condition": { > "broadcaster_user_id": "798748369" > }, > "created_at": "2023-01-18T21:21:40.969961007Z", > "transport": { > "method": "webhook", > "callback": "https://tagged-play.ru/twitch-callback" > }, > "cost": 0 > } > ], > "max_total_cost": 10000, > "total_cost": 0, > "pagination": {} > } > > ``` My code: > **Summary** > > ```auto > public function actionIndex() > { > \Yii::$app->response->format = Response::FORMAT_JSON; > \Yii::$app->response->statusCode = 200; > > $folder = \Yii::getAlias('@app/runtime/'); > > file_put_contents($folder . '/payload.txt', file_get_contents('php://input'), FILE_APPEND); > > $incoming_payload = json_decode(file_get_contents('php://input')); > > file_put_contents($folder . '/payload_json.txt', '
' . print_r($incoming_payload, true). '
', FILE_APPEND); > > $headers = '
' . print_r(getallheaders(), true) . '
'; > > file_put_contents($folder. '/' .time() . '_HEADERS.txt', $headers); > > if(isset($_GET) && !empty($_GET)) { > $get = '
' . print_r($_GET, true) . '
'; > file_put_contents($folder. '/' .time() . '_GET.txt', $get); > } > if(isset($_POST) && !empty($_POST)){ > $post = '
' . print_r($_POST, true) . '
'; > file_put_contents($folder. '/' .time() . '_POST.txt', $post); > } > } > > ``` Callback link - [https://tagged-play.ru/twitch-callback](https://tagged-play.ru/twitch-callback) I return 200 code as required by the documentation and do not output/send anything in response. I have an ssl certificate and port 443 is available. What am I doing wrong? ---
**Author:** ![Dist](https://d3ovvz0v2ajtpu.cloudfront.net/user_avatar/discuss.dev.twitch.com/dist/32/7192_2.png) [@Dist](https://discuss.dev.twitch.com/u/Dist)\ **Post date:** [January 19, 2023, 12:00am UTC](https://discuss.dev.twitch.com/t/eventsub-webhook-callback-verification-failed-help-me/42897/2 "2023-01-19T00:00:27Z")
I don’t see you responding to the challenge anywhere. When you subscribe to an EventSub over webhooks, Twitch will send you a challenge, as you can see in one of your summaries `[challenge] => 7oju4NLCrEwRNYgHNVAzYXf_brHJR4J5iNDaiHZI2Qs` When Twitch sends that to you, you need to respond with a 200 status AND that challenge, which in that case would be `7oju4NLCrEwRNYgHNVAzYXf_brHJR4J5iNDaiHZI2Qs`. If your server doesn’t send that challenge back, it fails the verification process. ---
**Author:** ![BarryCarlyon](https://d3ovvz0v2ajtpu.cloudfront.net/user_avatar/discuss.dev.twitch.com/barrycarlyon/32/253_2.png) [@BarryCarlyon](https://discuss.dev.twitch.com/u/BarryCarlyon)\ **Post date:** [January 19, 2023, 12:12am UTC](https://discuss.dev.twitch.com/t/eventsub-webhook-callback-verification-failed-help-me/42897/3 "2023-01-19T00:12:48Z")
You can also use the TwitchCLI to test your Callback I did so and the result is ```auto twitch event verify-subscription cheer -F https://tagged-play.ru/twitch-callback ✗ Invalid response. Received null as body, expected 0f4f2e05-42b1-e6a7-4e2e-ebbf7e7c8aad ✗ Invalid content-type header. Received type application/json with charset UTF-8. Expecting text/plain. ✔ Valid status code. Received status 200 ``` Which as you can see is incorrect as you don’t echo back the challenge as dist notes ---
**Author:** ![tagged\_play](https://d3ovvz0v2ajtpu.cloudfront.net/user_avatar/discuss.dev.twitch.com/tagged_play/32/21978_2.png) [@tagged\_play](https://discuss.dev.twitch.com/u/tagged_play)\ **Post date:** [January 20, 2023, 4:31pm UTC](https://discuss.dev.twitch.com/t/eventsub-webhook-callback-verification-failed-help-me/42897/4 "2023-01-20T16:31:36Z")
Thanks a lot. I succeeded =) ---
**Author:** ![system](https://d2opxh93rbxzdn.cloudfront.net/original/2X/0/05909729875cce3b53e59d5561c4d23bb14948fc.png) [@system](https://discuss.dev.twitch.com/u/system)\ **Post date:** [February 19, 2023, 4:32pm UTC](https://discuss.dev.twitch.com/t/eventsub-webhook-callback-verification-failed-help-me/42897/5 "2023-02-19T16:32:08Z")
Closed on February 19, 2023, 4:32pm UTC This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.