Fetching Outlook e-mail categories from Microsoft Graph - microsoft-graph-api

Question

I want to fetch only a particular category that belongs to an email from Microsoft Graph / Outlook endpoint. But is gives me all the categories which are present in associated email.
[https://graph.microsoft.com/beta/me/outlook/masterCategories/?$filter = displayName eq 'Red category']
Above link is my query to Microsoft Graph API and I get the following result
{
"#odata.context": "https://graph.microsoft.com/beta/$metadata#users('1e69674d-b0b3-404e-ae2d-a758569ce83c')/outlook/masterCategories",
"value": [
{
"id": "347a7dcc-6c61-4c93-85a5-eb75f973a77f",
"displayName": "Red category",
"color": "preset0"
},
{
"id": "643d45c3-aecb-4fbb-8254-c2520f01cf20",
"displayName": "Orange category",
"color": "preset1"
},
{
"id": "d06a692a-9406-4052-9b1e-bc7ae293a4e4",
"displayName": "Yellow category",
"color": "preset3"
},
{
"id": "8c3e842d-427f-4480-8459-e3e4e785fa85",
"displayName": "Green category",
"color": "preset4"
},
{
"id": "11502440-1912-4de1-afad-c2209178219d",
"displayName": "Blue category",
"color": "preset7"
},
{
"id": "f3f1b1ca-b319-4951-9eeb-954a169e3d71",
"displayName": "Purple category",
"color": "preset8"
},
{
"id": "1fc2506b-2676-447c-bfa3-44a3a7a2dc2d",
"displayName": "Important",
"color": "preset14"
},
{
"id": "8926f11d-23ba-4804-ace7-8ae349f390a6",
"displayName": "Caution",
"color": "preset16"
},
{
"id": "60434e45-effa-40d7-b753-705d59ef3440",
"displayName": "Star",
"color": "preset2"
}
]
}
Any ways of filtering the categories through properties like displayName ?

Answer 1

Based on official guideline, it supports {id} to filter.
https://graph.microsoft.com/beta/me/outlook/masterCategories/8cefb2b7-8f81-47e3-b6d3-a8e2dd4ac42a
https://developer.microsoft.com/en-us/graph/docs/api-reference/beta/api/outlookcategory_get

Answer 2

The /me/ normally doesn't return filters for me very well.
Try calling
/users/{id}/outlook/masterCategories?filter=displayName eq 'Red Category'