Add a Managed Namespace

On this page

Syntax

Request Path Parameters
Request Query Parameters
Request Body Parameters
HTTP Response Elements
Example
Request
Response

Note

Groups and projects are synonymous terms. Your {GROUP-ID} is the same as your project ID. For existing groups, your group/project ID remains the same. The resource and corresponding endpoints use the term groups.

The Atlas Administration API authenticates using HTTP Digest Authentication. Provide a programmatic API public key and corresponding private key as the username and password when constructing the HTTP request. To learn how to configure API access for an Atlas project, see Get Started with the Atlas Administration API.

https://cloud.mongodb.com/api/atlas/v1.0

Add a managed namespace to a Global Cluster. For more information about managed namespaces, see Global Clusters.

Syntax

POST /groups/{GROUP-ID}/clusters/{CLUSTER-NAME}/globalWrites/managedNamespaces

Request Path Parameters

Path Element	Required/Optional	Description
`GROUP-ID`	Required.	The unique identifier for the project that contains the Global Cluster.
`CLUSTER-NAME`	Required.	The name of the Global Cluster.

Request Query Parameters

This endpoint might use any of the HTTP request query parameters available to all Atlas Administration API resources. All of these are optional.

Name

Type

Necessity

Description

Default

pretty

boolean

Optional

Flag indicating whether the response body should be in a prettyprint format.

false

envelope

boolean

Optional

Flag indicating if Atlas should wrap the response in a JSON envelope.

This option may be needed for some API clients. These clients cannot access the HTTP response headers or status code. To remediate this, set envelope=true in the query.

For endpoints that return one result, the response body includes:


status	HTTP response code
envelope	Expected response body

false

Request Body Parameters

Name	Type	Description
`collection`	string	The name of the collection associated with the managed namespace.
`customShardKey`	string	The custom shard key for the collection. Global Clusters require a compound shard key consisting of a `location` field and a user-selected second key, the custom shard key.
`db`	string	The name of the database containing the collection.
`isCustomShardKeyHashed`	boolean	Optional. Flag that specifies whether the custom shard key for the collection is hashed. Value can be one of the following: `true` - if custom shard key is hashed `false` - if custom shard key is not hashed (default) If omitted, defaults to `false`. If `false`, Atlas uses ranged sharding. This is only available for Atlas clusters with MongoDB v4.4 and later.
`isShardKeyUnique`	boolean	Optional. Flag that specifies whether the underlying index enforces a unique constraint. Value can be one of the following: `true` - if shard key is unique `false` - if shard key is not unique (default) If omitted, defaults to `false`. You cannot specify `true` when using hashed shard keys.
`numInitialChunks`	integer	Optional. Specifies the minimum number of chunks to create initially when sharding an empty collection with a hashed shard key. Atlas then creates and balances chunks across the cluster. The `numInitialChunks` must be less than `8192` per shard. If omitted, defaults to `2`. To learn more, see Global Cluster Sharding Reference. This is only available for Atlas clusters with MongoDB v4.4 and later.
`presplitHashedZones`	boolean	Optional. For hashed sharding only. Flag that specifies whether to perform initial chunk creation and distribution for an empty or non-existing collection based on the defined zones and zone ranges for the collection. Value can be one of the following: `true` - to perform initial chunk creation and distribution `false` - to not perform initial chunk creation and distribution (default) If omitted, defaults to `false`. This is only available for Atlas clusters with MongoDB v4.4 and later.

HTTP Response Elements

Name	Type	Description
`customZoneMapping`	document	A comma-separated list of all custom zone mappings defined for the Global Cluster. Atlas automatically maps each location code to the closest geographical zone. Custom zone mappings allow administrators to override these automatic mappings. If your Global Cluster does not have any custom zone mappings, this document is empty.
`managedNamespaces`	array of documents	Each document specifies a namespace for a Global Cluster managed by Atlas.
`managedNamespaces[n].collection`	string	The name of the collection associated with the managed namespace.
`managedNamespaces[n].customShardKey`	string	The custom shard key for the collection. Global Clusters require a compound shard key consisting of a `location` field and a user-selected second key, the custom shard key.
`managedNamespaces[n].db`	string	The name of the database containing the collection.
`managedNamespaces[n].isCustomShardKeyHashed`	boolean	Flag that specifies whether the custom shard key for the collection is hashed. Value can be one of the following: `true` - if custom shard key is hashed `false` - if custom shard key is not hashed (default) Default value is `false`. If `false`, Atlas uses ranged sharding. This is only available for Atlas clusters with MongoDB v4.4 and later.
`managedNamespaces[n].isShardKeyUnique`	boolean	Flag that specifies whether the underlying index enforces a unique constraint. Value can be one of the following: `true` - if shard key is unique `false` - if shard key is not unique (default)
`managedNamespaces[n].numInitialChunks`	integer	Minimum number of chunks to create initially when sharding an empty collection with a hashed shard key. To learn more, see Global Cluster Sharding Reference. This is only available for Atlas clusters with MongoDB v4.4 and later.
`managedNamespaces[n].presplitHashedZones`	boolean	Flag that specifies whether to perform initial chunk creation and distribution for an empty or non-existing collection based on the defined zones and zone ranges for the collection. Value can be one of the following: `true` - to perform initial chunk creation and distribution `false` - to not perform initial chunk creation and distribution (default) Default value is `false`. This is only available for Atlas clusters with MongoDB v4.4 and later.

Example

Request

curl -X POST -i --digest --user "{PUBLIC-KEY}:{PRIVATE-KEY}" -H "Content-Type: application/json" \
  "https://cloud.mongodb.com/api/atlas/v1.0/groups/6c391af480eef519ea5deeb1/clusters/Cluster1/globalWrites/managedNamespaces?pretty=true" \
  --data '{
    "db":"mydata",
    "collection":"publishers",
    "customShardKey":"city"
  }'

Response

 {
   "customZoneMapping" : {
     "AF" : "5b48f5a780eef5236f689f94",
     "AL" : "5b48f5a780eef5236f689f94",
     "AU" : "5b48f5cddff5220000f7f375",
     "AU-ACT" : "5b48f5cddff5220000f7f375",
     "AU-NSW" : "5b48f5cddff5220000f7f375",
     "AU-NT" : "5b48f5cddff5220000f7f375",
     "AU-QLD" : "5b48f5cddff5220000f7f375",
     "AU-SA" : "5b48f5cddff5220000f7f375",
     "AU-TAS" : "5b48f5cddff5220000f7f375",
     "AU-VIC" : "5b48f5cddff5220000f7f375",
     "AU-WA" : "5b48f5cddff5220000f7f375",
     "DZ" : "5b48f5a780eef5236f689f94"
},
   "managedNamespaces" : [ {
     "collection" : "publishers",
     "customShardKey" : "city",
     "db" : "mydata",
     "isCustomShardKeyHashed": false,
     "isShardKeyUnique": false,
     "numInitialChunks": null,
     "presplitHashedZones": false
   },{
     "collection" : "stores",
     "customShardKey" : "store_number",
     "db" : "mydata",
     "isCustomShardKeyHashed": false,
     "isShardKeyUnique": false,
     "numInitialChunks": null,
     "presplitHashedZones": false
   } ]
 }

← Get Global Clusters Data Delete a Managed Namespace →