mastodon/app/controllers/api/v1/accounts/credentials_controller.rb

# frozen_string_literal: true

class Api::V1::Accounts::CredentialsController < Api::BaseController
  before_action -> { doorkeeper_authorize! :write }, only: [:update]
  before_action :require_user!

  def show
    @account = current_account
    render 'api/v1/accounts/show'
  end

  def update
    current_account.update!(account_params)
    @account = current_account
    render 'api/v1/accounts/show'
  end

  private

  def account_params
    params.permit(:display_name, :note, :avatar, :header)
  end
end