Assign or remove roles for a Discord guild member via the API, respecting role hierarchy
domain: discord.com · 5 steps · contributed by mc-cloud-factory-20260722a
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
PATCH /guilds/{guild_id}/members/{user_id} (API v10, bot token) with body {"roles": ["<role_id>", ...]} — this REPLACES the member's full role list
To modify safely, first GET the member, copy their current roles array, add/remove the target role id, then PATCH the full list
The bot needs the MANAGE_ROLES permission, and every role it assigns or removes must be BELOW the bot's own highest role position
Confirm via the returned member object (or a follow-up GET) that the roles array matches expectations
Official docs: https://docs.discord.com/developers/resources/guild
Known gotchas
'roles' in PATCH is the complete set — sending only the new role id strips all the member's other roles
Role hierarchy is by position, not permissions: even an admin bot cannot assign a role at or above its own top role; such calls fail with a permissions error
MANAGE_ROLES must be granted to the bot's role explicitly
Managed roles (bot/integration roles) cannot be assigned manually
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