---
layout: docs
page_title: connect mongo - Command
description: >-
  The "connect mongo" command performs a target authorization or consumes an existing authorization token, and then launches a proxied MongoDB connection.
---

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> [!IMPORTANT]  
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# connect mongo

Command: `boundary connect mongo`

The `connect mongo` command authorizes a session against a target and invokes a MongoDB client for the connection.
The command fills in the local address and port.

@include 'cmd-connect-env-vars.mdx'


## Examples

The following example shows how to connect to a target with the ID `ttcp_eTcMueUYv` using a MongoDB helper:

```shell-session
$ boundary connect mongo -target-id=ttcp_eTcZMueUYv \
   -dbname=northwind \
   -username=superuser \
   -authentication-database=admin \
   -format=table
```

When prompted, you must enter the password for the user, "superuser":

<CodeBlockConfig hideClipboard>

```plaintext
Enter password:
Current Mongosh Log ID:	64a1b2c3d4e5f6789012345
Connecting to:		mongodb://127.0.0.1:12345/northwind?authSource=admin
Using MongoDB:		7.0.0
Using Mongosh:		2.0.0

northwind> show collections
orders
products
customers

northwind> db.products.count()
77

northwind>
```

</CodeBlockConfig>

## Usage

<CodeBlockConfig hideClipboard>

```shell-session
$ boundary connect mongo [options] [args]
```

</CodeBlockConfig>

@include 'cmd-connect-command-options.mdx'

### MongoDB options:

- `-dbname` `(string: "")` - The database name you want to pass through to the client.
You can also specify the database name using the **BOUNDARY_CONNECT_DBNAME** environment variable.

- `-style`  `(string: "mongosh")` - How the CLI attempts to invoke a MongoDB client.
This value also sets a suitable default for `-exec`, if you did not specify a value.
The default and currently-understood value is `mongosh`.
You can also specify how the CLI attempts to invoke a MongoDB client using the **BOUNDARY_CONNECT_MONGO_STYLE** environment variable.

- `-username`  `(string: "")` - The username you want to pass through to the client.
This value may be overridden by credentials sourced from a credential store.
You can also specify a username using the **BOUNDARY_CONNECT_USERNAME** environment variable.

- `-authentication-database` `(string: "")` - The authentication database for MongoDB.
If omitted, mongosh defaults `authSource` to the database name (`-dbname`). If no database is specified, it defaults to `admin`.
You can also specify the authentication database using the **BOUNDARY_CONNECT_MONGO_AUTHENTICATION_DATABASE** environment variable.


@include 'cmd-option-note.mdx'