Event Subscriptions - 500 error - ngrok

[5knnbdwm]

Description

I'm not sure what changed from last week to this week or if it is something with my system. Regardless I cannot use ngrok to expose my locally hosted slackbot. When entering the ngrok URL into New Request URL I receive the information in the label of the input 'Your URL didn't respond with the value of the challenge parameter.' Additionally, I get the notification Your request URL gave us a 500 error. Update your URL to receive a new request and challenge value.

I tried the same with localtunnel and there it works fine. (I don't like using localtunnel because it tends to crash more often than ngrok.) I uninstalled and reinstalled ngrok with npm and brew for both it doesn't work.

What type of issue is this? (place an x in one of the [ ])

• bug
• enhancement (feature request)
• question
• documentation related
• testing related
• discussion

Requirements (place an x in each of the [ ])

• I've read and understood the Contributing guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've searched for any related issues and avoided creating a duplicate issue.

---

Bug Report

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Reproducible in:

package version: ^1.4.1

node version: v13.2.0

ngrok: 2.3.35

OS version(s): macOS 10.15.1 (19B88)

Attachments:

api.slack.com/apps/ - console log

[Error] Dec-11 11:03:55.903 – "(TP47QDJUE)" (2)
Object

error: "http_failed"

settings: Object

data: {app: "AQJT3PURM", url: "http://45175340.ngrok.io/slack/events"}

error_alert_selector: "#event_subscription_error_alert"

method: "developer.apps.events.subscriptions.verifyURL"

Object Prototype

Object Prototype
"Developer Apps Error"
	I (modern.vendor.b4e6357d8c5761d277d5.min.js:1:457635)
	S (modern.vendor.b4e6357d8c5761d277d5.min.js:1:456725)
	q (modern.vendor.b4e6357d8c5761d277d5.min.js:1:51768)
	e (rollup-developer_apps_edit.b7c9a2b55228213c6ee6.min.js:1:17306)
	(anonymous function) (rollup-developer_apps_edit.b7c9a2b55228213c6ee6.min.js:1:3709)
	u (rollup-core_required_libs.0fbe929508a8a143c2de.min.js:1:75584)
	(anonymous function) (rollup-core_required_libs.0fbe929508a8a143c2de.min.js:1:47330)
	(anonymous function) (rollup-core_required_libs.0fbe929508a8a143c2de.min.js:1:48208)
	(anonymous function) (rollup-core_required_libs.0fbe929508a8a143c2de.min.js:1:48934)
	(anonymous function) (rollup-core_required_libs.0fbe929508a8a143c2de.min.js:1:50177)
	(anonymous function) (rollup-core_required_libs.0fbe929508a8a143c2de.min.js:1:3052)
	(anonymous function) (rollup-core_required_libs.0fbe929508a8a143c2de.min.js:1:3162)
	(anonymous function) (rollup-core_required_libs.0fbe929508a8a143c2de.min.js:1:1264)
	promiseReactionJob

logs in ngrok

HTTP Requests
-------------

POST /slack/events             502 Bad Gateway
GET  /                         502 Bad Gateway

[zachlatta]

How'd you fix this? I'm running into the same problem and struggling to figure out if I'm doing something silly.

[zachlatta]

For anyone else running into this issue, I was able to fix it by running ngrok http 0.0.0.0:3000 instead of ngrok http 3000.

[mickymac19]

both didn't work for me... I'm still getting a 502 Bad Gateway

[iudun]

both didn't work for me... I'm still getting a 502 Bad Gateway

Did you able to solve this issue I have the same error