---
lang: en
title: 'API docs: context.binding.tag'
keywords: LoopBack 4.0, LoopBack 4, Node.js, TypeScript, OpenAPI
sidebar: lb4_sidebar
editurl: https://github.com/loopbackio/loopback-next/tree/master/packages/context
permalink: /doc/en/lb4/apidocs.context.binding.tag.html
---

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[Home](./index.md) &gt; [@loopback/context](./context.md) &gt; [Binding](./context.binding.md) &gt; [tag](./context.binding.tag.md)

## Binding.tag() method

Tag the binding with names or name/value objects. A tag has a name and an optional value. If not supplied, the tag name is used as the value.

**Signature:**

```typescript
tag(...tags: BindingTag[]): this;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td markdown="1">

tags


</td><td markdown="1">

[BindingTag](./context.bindingtag.md)<!-- -->\[\]


</td><td markdown="1">

A list of names or name/value objects. Each parameter can be in one of the following forms: - string: A tag name without value - string\[\]: An array of tag names - TagMap: A map of tag name/value pairs


</td></tr>
</tbody></table>

**Returns:**

this

## Example


```ts
// Add a named tag `controller`
binding.tag('controller');

// Add two named tags: `controller` and `rest`
binding.tag('controller', 'rest');

// Add two tags
// - `controller` (name = 'controller')
// `{name: 'my-controller'}` (name = 'name', value = 'my-controller')
binding.tag('controller', {name: 'my-controller'});

```