misskey/src/client/app/desktop/views/pages/admin/admin.suspend-user.vue

<template>
<div>
	<header>%i18n:@suspend-user%</header>
	<input v-model="username"/>
	<button @click="suspendUser" :disabled="suspending">%i18n:@suspend%</button>
</div>
</template>

<script lang="ts">
import Vue from "vue";
import parseAcct from "../../../../../../misc/acct/parse";

export default Vue.extend({
	data() {
		return {
			username: null,
			suspending: false
		};
	},
	methods: {
		async suspendUser() {
			this.suspending = true;

			const user = await (this as any).os.api(
				"users/show",
				parseAcct(this.username)
			);

			await (this as any).os.api("admin/suspend-user", {
				userId: user.id
			});

			this.suspending = false;

			(this as any).os.apis.dialog({ text: "%i18n:@suspended%" });
		}
	}
});
</script>