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Azure Blob Storage Component

Manage files and folders within Azure Blob Storage

Component key: azure-blob

Changelog ↓

Description​

Azure Blob Storage is a cloud solution for storing unstructured data, like large binary or text files. It's often used to store blob data for web applications that don't store nicely in a relational database.

This component allows you to list, create and delete Azure containers, and create and modify blobs (files) within those Azure containers.

Information about Azure Blob Storage can be found on their documentation site.

Connections​

Connection String​

key: connectionString

Azure Blob Storage supports authentication using a Shared Access Signature (SAS) connection string. This method grants limited access to Azure Storage resources with fine-grained control over permissions and expiration.

A connection string containing a SAS token provides temporary, restricted access and is useful when full account key access is not required.

Prerequisites​

  • An active Azure account
  • An existing Azure Storage Account
  • Understanding of required permissions for the integration's operations

Setup Steps​

To generate a SAS connection string:

  1. Sign in to the Azure Portal
  2. Navigate to Storage accounts from the main menu
  3. Select the storage account to connect to
  4. In the left sidebar, under Security + networking, select Shared access signature
  5. Configure the SAS token settings:
    • Allowed services: Select Blob (at minimum)
    • Allowed resource types: Select the appropriate types (Container, Object, etc.)
    • Allowed permissions: Select the minimum required permissions for the integration
    • Start and expiry date/time: Set an appropriate expiration date
  6. Click Generate SAS and connection string at the bottom
  7. Copy the Connection string value (not the SAS token alone)
Token Expiration

The SAS token has an expiration date. Note the expiration date and plan to refresh the connection string before it expires to avoid authentication failures.

Connection String Format

The connection string will have the format:

BlobEndpoint=https://account.blob.core.windows.net/;SharedAccessSignature=sv=...

Configure the Connection​

  • Enter the complete Connection string value into the connection configuration

For more information about SAS tokens, permissions, and security considerations, refer to the Azure SAS documentation.

InputNotesExample
Connection String

The Azure Storage connection string. Find this in Azure Portal under Storage accounts > Security + networking > Access keys > Connection string. Supports account key or SAS token authentication. Learn more

DefaultEndpointsProtocol=https;AccountName=mystorageaccount;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;EndpointSuffix=core.windows.net

Storage Shared Key​

key: storageSharedKey

Azure Blob Storage can use Shared Key authentication to authenticate requests. This authentication method uses a storage account name and account key pair.

For more information about storage account authentication, refer to the Azure Storage security guide.

Prerequisites​

  • An active Azure account
  • An existing Azure Storage Account or permissions to create one
  • Appropriate permissions to view and manage storage account access keys

Setup Steps​

To obtain the storage account credentials:

  1. Sign in to the Azure Portal
  2. Navigate to Storage accounts from the main menu
  3. Select the storage account to connect to
  4. In the left sidebar, under Security + networking, select Access keys
  5. Two keys are displayed: key1 and key2. Either key can be used for authentication
  6. Copy the Storage account name (shown at the top of the page)
  7. Click Show next to either key and copy the Key value
Key Rotation

Azure provides two access keys to allow for key rotation without downtime. When rotating keys, update the connection configuration with the new key value.

Configure the Connection​

  • Enter the Storage account name into the Account Name field
  • Enter the copied Key value into the Account Key field

For additional information about managing storage account keys and security best practices, refer to the Azure documentation.

InputNotesExample
Account Key

The 512-bit storage account access key (Base64-encoded). Find this in Azure Portal under Storage accounts > Security + networking > Access keys. Learn more

Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==
Account Name

The Azure Storage account name (3-24 characters, lowercase letters and numbers only). Find this in your Azure Portal under Storage accounts. Learn more

mystorageaccount123

Data Sources​

Select Blob​

Select a blob from an Azure Storage container | key: selectBlob | type: picklist

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container
Prefix

Optionally filter blobs by prefix (e.g., 'documents/' to show only blobs in that folder)

documents/invoices/

{
  "result": [
    {
      "label": "documents/report.pdf",
      "key": "documents/report.pdf"
    },
    {
      "label": "images/logo.png",
      "key": "images/logo.png"
    }
  ]
}

Select Container​

Select a container from your Azure Storage account | key: selectContainer | type: picklist

InputNotesExample
Connection

The Azure Blob Storage connection to use.

{
  "result": [
    {
      "label": "my-container",
      "key": "my-container"
    },
    {
      "label": "backup-files",
      "key": "backup-files"
    }
  ]
}

Actions​

Append to Append Blob​

Append blocks to an existing append blob | key: appendToAppendBlob

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

The blob name (file path) within the container. Do not include a leading slash. Use forward slashes for virtual directory structures.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container
File Contents

The contents to write to a blob. Accepts text strings or binary data (images, PDFs, etc.) from previous steps.

My File Contents

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Create Append Blob​

Create an empty append blob object (use "Append to Append Blob" to add blocks) | key: createAppendBlob

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

The blob name (file path) within the container. Do not include a leading slash. Use forward slashes for virtual directory structures.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Create Container​

Create a container | key: createContainer

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Create Page Blob​

Create a page blob with a specific size (must be a multiple of 512 bytes) | key: createPageBlob

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

The blob name (file path) within the container. Do not include a leading slash. Use forward slashes for virtual directory structures.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container
Page Blob Size

The size to reserve for the page blob in bytes. Must be a multiple of 512 (e.g., 1024, 1536, 2048, 4096). Maximum size is 8 TiB (8,796,093,022,208 bytes).

4096

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Delete Blob​

Delete a blob | key: deleteBlob

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

The blob name (file path) within the container. Do not include a leading slash. Use forward slashes for virtual directory structures.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Delete Container​

Delete a container | key: deleteContainer

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Download Blob​

Download a blob | key: downloadBlob

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

The blob name (file path) within the container. Do not include a leading slash. Use forward slashes for virtual directory structures.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container

{
  "data": {
    "type": "Buffer",
    "data": [
      69,
      120,
      97,
      109,
      112,
      108,
      101
    ]
  },
  "contentType": "application/octet"
}

Generate Shared Access Signature URL​

Generate a pre-signed URL (Shared Access Signature or SAS) for a blob | key: generateSasUrl

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

A blob is a file that is saved in a 'container'. This represents the file's name.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container
SAS Expires On

The expiration date and time when the Shared Access Signature becomes invalid. Must be in ISO 8601 format (YYYY-MM-DDTHH:MM:SSZ).

2027-01-27T00:00:00Z
SAS Permissions

The permission string for the SAS token. Combine permissions in this order: 'racwdxltmeop'. Common examples: 'r' (read), 'rw' (read/write), 'racwd' (read, add, create, write, delete). Learn more

rw
SAS Starts On

The start date and time when the Shared Access Signature becomes valid. Must be in ISO 8601 format (YYYY-MM-DDTHH:MM:SSZ).

2026-01-27T00:00:00Z

List Blobs​

Get a list of blobs in a container | key: listBlobs

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container
Prefix

Filter blobs by prefix string. Use this to list blobs within a specific virtual directory. Include a trailing slash for directory-style filtering (e.g., 'documents/'). Leave blank to list all blobs.

documents/invoices/

{
  "data": [
    {
      "name": "Example",
      "deleted": false,
      "snapshot": "",
      "properties": {
        "lastModified": "2020-01-01T00:00:00.000Z",
        "etag": "Example Tag"
      }
    }
  ]
}

List Containers​

Get a list of containers available in the account | key: listContainers

InputNotesExample
Connection

The Azure Blob Storage connection to use.

{
  "data": [
    {
      "name": "Example",
      "properties": {
        "lastModified": "2020-01-01T00:00:00.000Z",
        "etag": "Example Tag"
      }
    }
  ]
}

Resize Page Blob​

Resize an existing page blob (must be a multiple of 512 bytes) | key: resizePageBlob

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

The blob name (file path) within the container. Do not include a leading slash. Use forward slashes for virtual directory structures.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container
Page Blob Size

The size to reserve for the page blob in bytes. Must be a multiple of 512 (e.g., 1024, 1536, 2048, 4096). Maximum size is 8 TiB (8,796,093,022,208 bytes).

4096

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Upload Block Blob​

Upload file data to a block blob object | key: uploadBlockBlob

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

The blob name (file path) within the container. Do not include a leading slash. Use forward slashes for virtual directory structures.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container
File Contents

The contents to write to a blob. Accepts text strings or binary data (images, PDFs, etc.) from previous steps.

My File Contents

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Upload to Page Blob​

Upload to an existing page blob (both data size and offset must be a multiple of 512) | key: uploadToPageBlob

InputNotesExample
Connection

The Azure Blob Storage connection to use.

Blob Name

The blob name (file path) within the container. Do not include a leading slash. Use forward slashes for virtual directory structures.

documents/report.pdf
Container Name

The Azure Blob Storage container name (3-63 characters, lowercase letters, numbers, and hyphens only). Containers organize blob storage similar to directories. Learn more

my-azure-container
File Contents

The contents to write to a blob. Accepts text strings or binary data (images, PDFs, etc.) from previous steps.

My File Contents
Page Blob Offset

The starting byte position for writing to the page blob. Must be a multiple of 512 (e.g., 0, 512, 1024, 2048).

0

{
  "data": {
    "_response": {
      "parsedHeaders": {},
      "status": 200,
      "headers": {},
      "request": {
        "url": "www.example.com",
        "method": "POST",
        "withCredentials": false,
        "timeout": 500,
        "requestId": "exampleID"
      }
    }
  }
}

Changelog​

2026-01-27​

Enhanced configuration with inline data sources for Select Container and Select Blob, enabling dropdown selection of containers and blobs directly within action configuration without requiring separate API calls.