topic Re: SSO Error When Using run Start in Developer Q&A Forum

SSO Error When Using run Start

DD_Developer — Thu, 25 Apr 2024 09:16:06 GMT

Hi,

I am currently able to create an app using the following versions.

Node JS Windows : V20.11.0

dt-app@0.115.5

Microsoft Windows [Version 10.0.19045.4291] (c) Microsoft Corporation. All rights reserved. C:\Users\XXXXXX>node --version v20.11.0 C:\Users\XXXXXX>npx dt-app@0.115.5 create Hello there! Welcome to the Dynatrace App Toolkit. You can build, develop, and deploy your apps all from here. Now we'll just need a few details to get you going! ? Enter the name for your app C:\Users\XXXXXX>cd documents C:\Users\XXXXXX\Documents>npx dt-app@0.115.5 create Hello there! Welcome to the Dynatrace App Toolkit. You can build, develop, and deploy your apps all from here. Now we'll just need a few details to get you going! ? Enter the name for your app DynApp ? Enter your environment url https://{environmentid}.apps.dynatrace.com √ Successfully installed all dependencies Git not found, skipping repository creation -------------------------------------------------------------------------------- Your setup is complete, you can start hacking!

After the app is created, When I try to run the dev server using npm run start, I am encountering the following issue.

I am connected to my office network using VPN and trying to run the following command.

C:\Users\XXXXXX\Documents>cd dyn-app C:\Users\XXXXXX\Documents\dyn-app>npm run start > dyn-app@0.0.0 start > dt-app dev DT-APP: Started local development server Error: Could not resolve the SSO-URL for 'https://{environmentid}.apps.dynatrace.com' Http(s) request failed: read ECONNRESET Terminate batch job (Y/N)? y C:\Users\XXXXXX\Documents\dyn-app>code . C:\Users\XXXXXX\Documents\dyn-app>

Error: Could not resolve the SSO-URL for 'https://{environmentid}.apps.dynatrace.com'
Http(s) request failed: read ECONNRESET

When I look at the following path for log file,

C:\Users\XXXXXXXX\Documents\dyn-app\.dt-app\logs

I see the following :

2024-04-24T17:40:56.144Z DEBUG [TELEMETRY] Reading package.json 2024-04-24T17:40:56.160Z DEBUG [TELEMETRY] Initializing OpenKit 2024-04-24T17:40:59.552Z DEBUG [TELEMETRY] Creating a new HTTP and HTTPS://{environmentid}.apps.dynatrace.com' 2024-04-24T17:41:07.541Z DEBUG [HTTP(S)] Execute GET request without allowing redirection to 'https://{environmentid}.apps.dynatrace.com/platform/oauth2/authorization/dynatrace-sso' 2024-04-24T17:41:07.542Z DEBUG [TELEMETRY] Tracing request https://{environmentid}.apps.dynatrace.com/platform/oauth2/authorization/dynatrace-sso 2024-04-24T17:41:07.748Z DEBUG [AUTH] Could not resolve the SSO-URL for 'https://{environmentid}.apps.dynatrace.com' 2024-04-24T17:41:07.748Z DEBUG [AUTH] Error: Http(s) request failed: read ECONNRESET 2024-04-24T17:41:07.750Z ERROR Error: Could not resolve the SSO-URL for 'https://{environmentid}.apps.dynatrace.com' Http(s) request failed: read ECONNRESET 2024-04-24T17:41:07.750Z DEBUG [TELEMETRY] Reporting crash 2024-04-24T17:41:07.750Z DEBUG [TELEMETRY] Closing OpenKit connection

Can you please let me know what am i missing?

If Any proxy settings are required, Please let me know where do I need to execute.

UPDATE : The app ran successfully when VPN was disabled. Can you please let me know where can i find instructions for setting up Proxy in case of VPN.

Thanks in advance.

Re: SSO Error When Using run Start

SarahFaustmann — Thu, 25 Apr 2024 09:31:11 GMT

Hi @DD_Developer,

Have you looked at the proxy server section of our connectivity issues troubleshooting guide? You need a proxy server (for HTTP and HTTPS connections) configured on your machine, as well as set it up according to your company settings.

Kind regards,

Sarah

Re: SSO Error When Using run Start

DD_Developer — Thu, 25 Apr 2024 14:27:23 GMT

@SarahFaustmann ,

Thanks for the documentation about proxy settings. I did notice that we have a proxy server by using the following command

echo %http_proxy%

How do I configure this at the machine level? Do I need to execute the following commands ?

export HTTP_PROXY=<your proxy>
export HTTPS_PROXY=<your proxy>

Re: SSO Error When Using run Start

educampver — Tue, 30 Apr 2024 07:54:21 GMT

Hi @DD_Developer, the command for configuring proxies in Windows is a bit different. This should work:

set HTTP_PROXY=http://proxy_userid:proxy_password@proxy_ip:proxy_port set HTTPS_PROXY=http://proxy_userid:proxy_password@proxy_ip:proxy_port

Let us know if we can help in any other way.

Re: SSO Error When Using run Start

SarahFaustmann — Wed, 15 May 2024 11:14:42 GMT

Hi @DD_Developer,

Did @educampver's comment help you? If so, would you be so kind as to accept this as solved? Thank you! 🙂

Best,
Sarah

Re: SSO Error When Using run Start

MarwanC — Wed, 25 Jun 2025 21:25:59 GMT

Hi educampver,

Thank you for the good videos about AppFunctions, they were informative and encourged me to use AppFunction in my projects, I seems to be having the same constant issue, I was able to deploy before but it did stop working and I am now stuck not sure what happens - is not working for me anymore (see SSO error below)

PS C:\Users\U\DEV\Dynatrace\cm-api> npx dt-app dev
════════

Starting development server...

Port 3000 is already in use. Using port 3001 instead.

Warning ──────────────────────────────────────────────────────────────────────────────────

Failed to retrieve user details. App functions will use placeholder data.

──────────────────────────────────────────────────────────────────────────────────────────

Error: SSO-URL for 'https://{environmentid}.apps.dynatrace.com' could not be processed.
fetch failed
If you need further assistance visit the connectivity troubleshooting guide here: dt-url.net/c4jp0s12" target="_blank">https://dt-url.net/c4jp0s12

In the deploy part I get a couple message that my extension is not authorised - so I accept the notfifications twice but this does not help and the above error always occurs

Also in my Visual Code, I see a brown that DT is not Authirised how can this be resolved

I appreciate any feedback to resolve my deployment issues

Re: SSO Error When Using run Start

MarwanC — Wed, 25 Jun 2025 21:31:15 GMT

I seem to have a work around and it only works if I do it outside visual studio, not sure what needs to be done to start the development server or the deploy inside Visual Studio, if anyone knows, I will be interested.

But here is my contribution to the community for now; I can deploy to my instance:

set NODE_TLS_REJECT_UNAUTHORIZED=0

C:\Users\U\DEV\Dynatrace\cm-api>npx dt-app dev
════════

Starting development server...

(node:20176) Warning: Setting the NODE_TLS_REJECT_UNAUTHORIZED environment variable to '0' makes TLS connections and HTTPS requests insecure by disabling certificate verification.
(Use `node --trace-warnings ...` to show where the warning was created)
Authenticated as MY_USER

C:\Users\1026014>set NODE_TLS_REJECT_UNAUTHORIZED=0

C:\Users\U\DEV\Dynatrace>cd cm-api

C:\Users\U\DEV\Dynatrace\cm-api>npx dt-app deploy
════════

Deploying app...

(node:21984) Warning: Setting the NODE_TLS_REJECT_UNAUTHORIZED environment variable to '0' makes TLS connections and HTTPS requests insecure by disabling certificate verification.
(Use `node --trace-warnings ...` to show where the warning was created)
√ Creating bundles...
√ Built the app
√ Compressed app artifact

Hope this helps.
√ App is deployed

Done.

════════