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CosmosDB PowerShell Module

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Table of Contents

• Introduction
• Requirements
• Installation
• Getting Started
  • Working with Contexts
    • Create a Context specifying the Key Manually
    • Use CosmosDB Module to Retrieve Key from Azure Management Portal
    • Create a Context for a CosmosDB Emulator
  • Working with Databases
  • Working with Offers
  • Working with Collections
    • Creating a Collection with a custom Indexing Policy
  • Working with Documents -Working with Documents in a Partitioned Collection
  • Working with Attachments
  • Working with Users
  • Stored Procedures
  • Working with Triggers
  • Working with User Defined Functions
• Contributing
• Cmdlets
• Change Log
• Links

Introduction

This PowerShell module provides cmdlets for working with Azure Cosmos DB.

The CosmosDB PowerShell module enables management of:

• Attachments
• Collections
• Databases
• Documents
• Offers
• Permissions
• Stored Procedures
• Triggers
• User Defined Functions
• Users

The module uses the CosmosDB (DocumentDB) Rest APIs.

For more information on the CosmosDB Rest APIs, see this link.

Requirements

This module supports the following:

• Windows PowerShell 5.x:
  • AzureRM.Profile and AzureRM.Resources PowerShell modules are required if using New-CosmosDbContext -ResourceGroup $resourceGroup

or:

• PowerShell Core 6.x:
  • AzureRM.NetCore.Profile and AzureRM.NetCore.Resources PowerShell modules are required if using New-CosmosDbContext -ResourceGroup $resourceGroup

Installation

To install the module from PowerShell Gallery, use the PowerShell Cmdlet:

Install-Module -Name CosmosDB

Getting Started

The easiest way to use this module is to first create a context object using the New-CosmosDbContext cmdlet which you can then use to pass to the other CosmosDB cmdlets in the module.

To create the context object you will either need access to the primary primary or secondary keys from your CosmosDB account or allow the CosmosDB module to retrieve the keys directly from the Azure management portal for you.

Working with Contexts

Create a Context specifying the Key Manually

First convert your key into a secure string:

$primaryKey = ConvertTo-SecureString -String 'GFJqJesi2Rq910E0G7P4WoZkzowzbj23Sm9DUWFX0l0P8o16mYyuaZBN00Nbtj9F1QQnumzZKSGZwknXGERrlA==' -AsPlainText -Force

Use the key secure string, Azure CosmosDB account name and database to create a context variable:

$cosmosDbContext = New-CosmosDbContext -Account 'MyAzureCosmosDB' -Database 'MyDatabase' -Key $primaryKey

Use CosmosDB Module to Retrieve Key from Azure Management Portal

To create a context object so that the CosmosDB module retrieves the primary or secondary key from the Azure Management Portal, use the following command:

$cosmosDbContext = New-CosmosDbContext -Account 'MyAzureCosmosDB' -Database 'MyDatabase' -ResourceGroup 'MyCosmosDbResourceGroup' -MasterKeyType 'SecondaryMasterKey'

Note: if PowerShell is not connected to Azure then an interactive Azure login will be initiated. If PowerShell is already connected to an account that doesn't contain the CosmosDB you wish to connect to then you will first need to connect to the correct account using the Add-AzureRmAccount cmdlet.

Create a Context for a CosmosDB Emulator

Microsoft provides a CosmosDB emulator that you can run locally to enable testing and debugging scenarios. To create a context for a CosmosDB emulator installed on the localhost use the following command:

$cosmosDbContext = New-CosmosDbContext -Emulator -Database 'MyDatabase'

Working with Databases

Get a list of databases in the CosmosDB account:

Get-CosmosDbDatabase -Context $cosmosDbContext

Get the specified database from the CosmosDB account:

Get-CosmosDbDatabase -Context $cosmosDbContext -Id 'MyDatabase'

Working with Offers

Get a list of offers in the CosmosDB account:

Get-CosmosDbOffer -Context $cosmosDbContext

Query the offers in the CosmosDB account:

Get-CosmosDbOffer -Context $cosmosDbContext -Query 'SELECT * FROM root WHERE (root["id"] = "lyiu")'

Update an existing V2 offer to set a different throughput:

Get-CosmosDbOffer -Context $cosmosDbContext -Id 'lyiu' |
    Set-CosmosDbOffer -Context $cosmosDbContext -OfferThroughput 1000 -OfferIsRUPerMinuteThroughputEnabled $true

Update all existing V2 offers to set a different throughput:

Get-CosmosDbOffer -Context $cosmosDbContext -Query 'SELECT * FROM root WHERE (root["offerVersion"] = "V2")' |
    Set-CosmosDbOffer -Context $cosmosDbContext -OfferThroughput 10000 -OfferIsRUPerMinuteThroughputEnabled $false

Working with Collections

Get a list of collections in a database:

Get-CosmosDbCollection -Context $cosmosDbContext

Create a collection in the database with the offer throughput of 2500 RU/s:

New-CosmosDbCollection -Context $cosmosDbContext -Id 'MyNewCollection' -OfferThroughput 2500

Create a collection in the database with the partition key 'account' and the offer throughput of 50000 RU/s:

New-CosmosDbCollection -Context $cosmosDbContext -Id 'PartitionedCollection' -PartitionKey 'account' -OfferThroughput 50000

Get a specified collection from a database:

Get-CosmosDbCollection -Context $cosmosDbContext -Id 'MyNewCollection'

Delete a collection from the database:

Remove-CosmosDbCollection -Context $cosmosDbContext -Id 'MyNewCollection'

Creating a Collection with a custom Indexing Policy

You can create a collection with a custom indexing policy by assembling an Indexing Policy object using the functions:

• New-CosmosDbCollectionIncludedPathIndex
• New-CosmosDbCollectionIncludedPath
• New-CosmosDbCollectionExcludedPath
• New-CosmosDbCollectionIndexingPolicy

For example, to create a string range and number range index on the '/*' path using consistent indexing mode with no excluded paths:

$indexStringRange = New-CosmosDbCollectionIncludedPathIndex -Kind Range -DataType String -Precision -1
$indexNumberRange = New-CosmosDbCollectionIncludedPathIndex -Kind Range -DataType Number -Precision -1
$indexIncludedPath = New-CosmosDbCollectionIncludedPath -Path '/*' -Index $indexStringRange, $indexNumberRange
$indexingPolicy = New-CosmosDbCollectionIndexingPolicy -Automatic $true -IndexingMode Consistent -IncludedPath $indexIncludedPath
New-CosmosDbCollection -Context $cosmosDbContext -Id 'MyNewCollection' -PartitionKey 'account' -IndexingPolicy $indexingPolicy

For more information on how CosmosDB indexes documents, see this page.

Working with Documents

Create 10 new documents in a collection in the database:

0..9 | Foreach-Object {
    $document = @"
{
    `"id`": `"$([Guid]::NewGuid().ToString())`",
    `"content`": `"Some string`",
    `"more`": `"Some other string`"
}
"@
New-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'MyNewCollection' -DocumentBody $document
}

Get the first 5 documents from the collection in the database:

$resultHeaders = ''
$documents = Get-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'MyNewCollection' -MaxItemCount 5 -ResultHeaders $resultHeaders
$continuationToken = $resultHeaders.value.'x-ms-continuation'

Get the next document from a collection in the database using the continuation token found in the headers from the previous request:

$documents = Get-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'MyNewCollection' -MaxItemCount 5 -ContinuationToken $continuationToken

Replace the content of a document in a collection in the database:

$newDocument = @"
{
    `"id`": `"$($documents[0].id)`",
    `"content`": `"New string`",
    `"more`": `"Another new string`"
}
"@
Set-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id $documents[0].id -DocumentBody $newDocument

Return a document with a specific Id from a collection in the database:

Get-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id $documents[0].id

Querying a collection in a database:

$query = "SELECT * FROM customers c WHERE (c.id = '[email protected]')"
Get-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Query $query

Querying a collection in a database using a parameterized query:

$query = "SELECT * FROM customers c WHERE (c.id = @id)"
$queryParameters = @(
    @{ name = "@id"; value="[email protected]"; }
)
Get-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Query $query -QueryParameters $queryParameters

Delete a document from a collection in the database:

Remove-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id $documents[0].id

Working with Documents in a Partitioned Collection

Creating a document in a collection that has a Partition Key requires the PartitionKey parameter to be specified for the document:

$document = @"
{
    `"id`": `"en-us`",
    `"locale`": `"English (US)`"
}
"@
New-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'PartitionedCollection' -DocumentBody $document -PartitionKey 'en-us'

Get a document from a partitioned collection with a specific Id:

$document = Get-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'PartitionedCollection' -Id 'en-us' -PartitionKey 'en-us'

Delete a document from a partitioned collection in the database:

Remove-CosmosDbDocument -Context $cosmosDbContext -CollectionId 'PartitionedCollection' -Id 'en-us' -PartitionKey 'en-us'

Working with Attachments

Create an attachment on a document in a collection:

New-CosmosDbAttachment -Context $cosmosDbContext -CollectionId 'MyNewCollection' -DocumentId $documents[0].id -Id 'image_1' -ContentType 'image/jpg' -Media 'www.bing.com'

Get all attachments for a document in a collection:

Get-CosmosDbAttachment -Context $cosmosDbContext -CollectionId 'MyNewCollection' -DocumentId $documents[0].id

Get an attachment by Id for a document in a collection:

Get-CosmosDbAttachment -Context $cosmosDbContext -CollectionId 'MyNewCollection' -DocumentId $documents[0].id -Id 'image_1'

Rename an attachment for a document in a collection:

Set-CosmosDbAttachment -Context $cosmosDbContext -CollectionId 'MyNewCollection' -DocumentId $documents[0].id -Id 'image_1' -NewId 'Image_2'

Delete an attachment from a document in collection:

Remove-CosmosDbAttachment -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id $documents[0].id -Id 'Image_2'

Working with Users

Get a list of users in the database:

Get-CosmosDbUser -Context $cosmosDbContext

Create a user in the database:

New-CosmosDbUser -Context $cosmosDbContext -Id 'MyApplication'

Delete a user from the database:

Remove-CosmosDbUser -Context $cosmosDbContext -Id 'MyApplication'

Working with Permissions

Get a list of permissions for a user in the database:

Get-CosmosDbPermission -Context $cosmosDbContext -UserId 'MyApplication'

Create a permission for a user in the database with read access to a collection:

$collectionId = Get-CosmosDbCollectionResourcePath -Database 'MyDatabase' -Id 'MyNewCollection'
New-CosmosDbPermission -Context $cosmosDbContext -UserId 'MyApplication' -Id 'r_mynewcollection' -Resource $$collectionId -PermissionMode Read

Remove a permission for a user from the database:

Remove-CosmosDbPermission -Context $cosmosDbContext -UserId 'MyApplication' -Id 'r_mynewcollection'

Working with Triggers

Get a list of triggers for a collection in the database:

Get-CosmosDbTrigger -Context $cosmosDbContext -CollectionId 'MyNewCollection'

Create a trigger for a collection in the database that executes after all operations:

$Body = @'
function updateMetadata() {
    var context = getContext();
    var collection = context.getCollection();
    var response = context.getResponse();
    var createdDocument = response.getBody();

    // query for metadata document
    var filterQuery = 'SELECT * FROM root r WHERE r.id = "_metadata"';
    var accept = collection.queryDocuments(collection.getSelfLink(), filterQuery, updateMetadataCallback);
    if(!accept) throw "Unable to update metadata, abort";

    function updateMetadataCallback(err, documents, responseOptions) {
        if(err) throw new Error("Error" + err.message);

        if(documents.length != 1) throw 'Unable to find metadata document';
        var metadataDocument = documents[0];

        // update metadata
        metadataDocument.createdDocuments += 1;
        metadataDocument.createdNames += " " + createdDocument.id;

        var accept = collection.replaceDocument(metadataDocument._self, metadataDocument, function(err, docReplaced) {
            if(err) throw "Unable to update metadata, abort";
        });

        if(!accept) throw "Unable to update metadata, abort";
        return;
    }
}
'@
New-CosmosDbTrigger -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'MyTrigger' -TriggerBody $Body -TriggerOperation All -TriggerType Post

Update an existing trigger for a collection in the database to execute before all operations:

$Body = @'
function updateMetadata() {
    var context = getContext();
    var collection = context.getCollection();
    var response = context.getResponse();
    var createdDocument = response.getBody();

    // query for metadata document
    var filterQuery = 'SELECT * FROM root r WHERE r.id = "_metadata"';
    var accept = collection.queryDocuments(collection.getSelfLink(), filterQuery, updateMetadataCallback);
    if(!accept) throw "Unable to update metadata, abort";

    function updateMetadataCallback(err, documents, responseOptions) {
        if(err) throw new Error("Error" + err.message);

        if(documents.length != 1) throw 'Unable to find metadata document';
        var metadataDocument = documents[0];

        // update metadata
        metadataDocument.createdDocuments += 1;
        metadataDocument.createdNames += " " + createdDocument.id;

        var accept = collection.replaceDocument(metadataDocument._self, metadataDocument, function(err, docReplaced) {
            if(err) throw "Unable to update metadata, abort";
        });

        if(!accept) throw "Unable to update metadata, abort";
        return;
    }
}
'@
New-CosmosDbTrigger -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'MyTrigger' -Body $Body -TriggerOperation All -TriggerType Pre

Remove a trigger for a collection from the database:

Remove-CosmosDbTrigger -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'MyTrigger'

Working with Stored Procedures

Get a list of stored procedures for a collection in the database:

Get-CosmosDbStoredProcedure -Context $cosmosDbContext -CollectionId 'MyNewCollection'

Create a stored procedure for a collection in the database:

$Body = @'
function () {
    var context = getContext();
    var response = context.getResponse();

    response.setBody("Hello, World");
}
'@
New-CosmosDbStoredProcedure -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'spHelloWorld' -StoredProcedureBody $Body

Update an existing stored procedure for a collection in the database:

$Body = @'
function (personToGreet) {
    var context = getContext();
    var response = context.getResponse();

    response.setBody("Hello, " + personToGreet);
}
'@
New-CosmosDbStoredProcedure -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'spHelloWorld' -StoredProcedureBody $Body

Execute a stored procedure for a collection from the database:

Invoke-CosmosDbStoredProcedure -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'spHelloWorld' -StoredProcedureParameters @('PowerShell')

Remove a stored procedure for a collection from the database:

Remove-CosmosDbStoredProcedure -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'spHelloWorld'

Working with User Defined Functions

Get a list of user defined functions for a collection in the database:

Get-CosmosDbUserDefinedFunction -Context $cosmosDbContext -CollectionId 'MyNewCollection'

Create a user defined function for a collection in the database:

$Body = @'
function tax(income) {
    if(income == undefined) throw 'no input';
    if (income < 1000)
        return income * 0.1;
    else if (income < 10000)
        return income * 0.2;
    else
        return income * 0.4;
}
'@
New-CosmosDbUserDefinedFunction -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'udfTax' -UserDefinedFunctionBody $Body

Update an existing user defined function for a collection in the database:

$Body = @'
function tax(income) {
    if(income == undefined) throw 'no input';
    if (income < 1000)
        return income * 0.2;
    else if (income < 10000)
        return income * 0.3;
    else
        return income * 0.4;
}
'@
New-CosmosDbUserDefinedFunction -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'udfTax' -Body $Body

Remove a user defined function for a collection from the database:

Remove-CosmosDbUserDefinedFunction -Context $cosmosDbContext -CollectionId 'MyNewCollection' -Id 'udfTax'

Contributing

If you wish to contribute to this project, please read the Contributing.md document first. We would be very grateful of any contributions.

Cmdlets

Full details of the cmdlets contained in this module can be found in the docs folder.

A list of Cmdlets in the CosmosDB module can be found by running the following PowerShell commands:

Import-Module CosmosDB
Get-Command -Module CosmosDB

Help on individual Cmdlets can be found in the built-in Cmdlet help:

Get-Help -Name Get-CosmosDBUser

Change Log

For a list of changes to versions, see the CHANGELOG.md file.

Links

• GitHub Repository
• Blog