Copy data from FTP server by using Azure Data Factory

This article outlines how to use the Copy Activity in Azure Data Factory to copy data from an FTP server. It builds on the copy activity overview article that presents a general overview of copy activity.

Supported capabilities

You can copy data from FTP server to any supported sink data store. For a list of data stores that are supported as sources/sinks by the copy activity, see the Supported data stores table.

Specifically, this FTP connector supports:

Get started

You can create a pipeline with the copy activity by using one of the following tools or SDKs. Select a link to go to a tutorial with step-by-step instructions to create a pipeline with a copy activity.

The following sections provide details about properties that are used to define Data Factory entities specific to FTP.

Linked service properties

The following properties are supported for FTP linked service:

Property Description Required
type The type property must be set to: FtpServer. Yes
host Specify the name or IP address of the FTP server. Yes
port Specify the port on which the FTP server is listening.
Allowed values are: integer, default value is 21.
No
enableSsl Specify whether to use FTP over an SSL/TLS channel.
Allowed values are: true (default), false.
No
enableServerCertificateValidation Specify whether to enable server SSL certificate validation when you are using FTP over SSL/TLS channel.
Allowed values are: true (default), false.
No
authenticationType Specify the authentication type.
Allowed values are: Basic, Anonymous
Yes
userName Specify the user who has access to the FTP server. No
password Specify the password for the user (userName). Mark this field as a SecureString to store it securely in Data Factory, or reference a secret stored in Azure Key Vault. No
connectVia The Integration Runtime to be used to connect to the data store. You can use Azure Integration Runtime or Self-hosted Integration Runtime (if your data store is located in private network). If not specified, it uses the default Azure Integration Runtime. No

Note

The FTP connector supports accessing FTP server with either no encryption or explicit SSL/TLS encryption; it doesn’t support implicit SSL/TLS encryption.

Example 1: using Anonymous authentication

{
    "name": "FTPLinkedService",
    "properties": {
        "type": "FtpServer",
        "typeProperties": {
            "host": "<ftp server>",
            "port": 21,
            "enableSsl": true,
            "enableServerCertificateValidation": true,
            "authenticationType": "Anonymous"
        },
        "connectVia": {
            "referenceName": "<name of Integration Runtime>",
            "type": "IntegrationRuntimeReference"
        }
    }
}

Example 2: using Basic authentication

{
    "name": "FTPLinkedService",
    "properties": {
        "type": "FtpServer",
        "typeProperties": {
            "host": "<ftp server>",
            "port": 21,
            "enableSsl": true,
            "enableServerCertificateValidation": true,
            "authenticationType": "Basic",
            "userName": "<username>",
            "password": {
                "type": "SecureString",
                "value": "<password>"
            }
        },
        "connectVia": {
            "referenceName": "<name of Integration Runtime>",
            "type": "IntegrationRuntimeReference"
        }
    }
}

Dataset properties

For a full list of sections and properties available for defining datasets, see the datasets article. This section provides a list of properties supported by FTP dataset.

To copy data from FTP, set the type property of the dataset to FileShare. The following properties are supported:

Property Description Required
type The type property of the dataset must be set to: FileShare Yes
folderPath Path to the folder. Wildcard filter is not supported. For example: folder/subfolder/ Yes
fileName Name or wildcard filter for the file(s) under the specified "folderPath". If you don't specify a value for this property, the dataset points to all files in the folder.

For filter, allowed wildcards are: * (matches zero or more characters) and ? (matches zero or single character).
- Example 1: "fileName": "*.csv"
- Example 2: "fileName": "???20180427.txt"
Use ^ to escape if your actual file name has wildcard or this escape char inside.
No
format If you want to copy files as-is between file-based stores (binary copy), skip the format section in both input and output dataset definitions.

If you want to parse files with a specific format, the following file format types are supported: TextFormat, JsonFormat, AvroFormat, OrcFormat, ParquetFormat. Set the type property under format to one of these values. For more information, see Text Format, Json Format, Avro Format, Orc Format, and Parquet Format sections.
No (only for binary copy scenario)
compression Specify the type and level of compression for the data. For more information, see Supported file formats and compression codecs.
Supported types are: GZip, Deflate, BZip2, and ZipDeflate.
Supported levels are: Optimal and Fastest.
No
useBinaryTransfer Specify whether to use the binary transfer mode. The values are true for binary mode (default), and false for ASCII. No

Tip

To copy all files under a folder, specify folderPath only.
To copy a single file with a given name, specify folderPath with folder part and fileName with file name.
To copy a subset of files under a folder, specify folderPath with folder part and fileName with wildcard filter.

Note

If you were using "fileFilter" property for file filter, it is still supported as-is, while you are suggested to use the new filter capability added to "fileName" going forward.

Example:

{
    "name": "FTPDataset",
    "properties": {
        "type": "FileShare",
        "linkedServiceName":{
            "referenceName": "<FTP linked service name>",
            "type": "LinkedServiceReference"
        },
        "typeProperties": {
            "folderPath": "folder/subfolder/",
            "fileName": "myfile.csv.gz",
            "format": {
                "type": "TextFormat",
                "columnDelimiter": ",",
                "rowDelimiter": "\n"
            },
            "compression": {
                "type": "GZip",
                "level": "Optimal"
            }
        }
    }
}

Copy activity properties

For a full list of sections and properties available for defining activities, see the Pipelines article. This section provides a list of properties supported by FTP source.

FTP as source

To copy data from FTP, set the source type in the copy activity to FileSystemSource. The following properties are supported in the copy activity source section:

Property Description Required
type The type property of the copy activity source must be set to: FileSystemSource Yes
recursive Indicates whether the data is read recursively from the sub folders or only from the specified folder. Note when recursive is set to true and sink is file-based store, empty folder/sub-folder will not be copied/created at sink.
Allowed values are: true (default), false
No

Example:

"activities":[
    {
        "name": "CopyFromFTP",
        "type": "Copy",
        "inputs": [
            {
                "referenceName": "<FTP input dataset name>",
                "type": "DatasetReference"
            }
        ],
        "outputs": [
            {
                "referenceName": "<output dataset name>",
                "type": "DatasetReference"
            }
        ],
        "typeProperties": {
            "source": {
                "type": "FileSystemSource",
                "recursive": true
            },
            "sink": {
                "type": "<sink type>"
            }
        }
    }
]

Next steps

For a list of data stores supported as sources and sinks by the copy activity in Azure Data Factory, see supported data stores.