1. You give the Graph permission in app, but you want to use the SharePoint Search api. And your administrator has not yet consented to the application’s permissions.
2. If you need to grant access to SP Rest api via Azure AD App, you need to use a certificate to request access. Take a look at this :https://learn.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azuread

1. You give the Graph permission in app, but you want to use the SharePoint Search api. And your administrator has not yet consented to the application’s permissions.
2. If you need to grant access to SP Rest api via Azure AD App, you need to use a certificate to request access. Take a look at this :https://learn.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azuread

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