The following page shows how can I purge Application Insights data -
https://docs.microsoft.com/en-us/rest/api/application-insights/components/purge
I tried foll
You need authorization header to be added in your request to purge the azure application insights data. Refer for more details and step by step guide - https://sanganakauthority.blogspot.com/2019/06/how-to-delete-or-purge-azure.html
As per joy said in comment, just go to the website, and click "try it" -> log use your credential, then you can see the token:
On the page you linked to, scroll all the way up in the menu and find 'Getting started with REST'. When you click that and scroll the page, you find Register your client application with Azure AD.
Most Azure services (such as Azure Resource Manager providers and the classic deployment model) require your client code to authenticate with valid credentials before you can call the service's API. Authentication is coordinated between the various actors by Azure AD, and provides your client with an access token as proof of the authentication. The token is then sent to the Azure service in the HTTP Authorization header of subsequent REST API requests. The token's claims also provide information to the service, allowing it to validate the client and perform any required authorization.
Long story short: