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Import SFTP Data into Microsoft Power Query
The CData API Server offers standards-based Web service endpoints that allow a variety of applications to access SFTP data. In this article, you will use the OData format to import SFTP data into Microsoft Power Query.
The API Server, when paired with the ADO.NET Provider for SFTP (or any of 200+ other ADO.NET Providers), enables you to use Web services to connect to and query SFTP data. This article details how to import an OData feed of SFTP data into Microsoft Power Query.
Set Up the API Server
Follow the steps below to begin producing secure SFTP OData services:
Deploy
The API Server runs on your own server. On Windows, you can deploy using the stand-alone server or IIS. On a Java servlet container, drop in the API Server WAR file. See the help documentation for more information and how-tos.
The API Server is also easy to deploy on Microsoft Azure, Amazon EC2, and Heroku.
Connect to SFTP
After you deploy the API Server and the ADO.NET Provider for SFTP, provide authentication values and other connection properties needed to connect to SFTP by clicking Settings -> Connections and adding a new connection in the API Server administration console.
SFTP can be used to transfer files to and from SFTP servers using the SFTP Protocol. To connect, specify the RemoteHost;. service uses the User and Password and public key authentication (SSHClientCert). Choose an SSHAuthMode and specify connection values based on your selection.
Set the following connection properties to control the relational view of the file system:
- RemotePath: Set this to the current working directory.
- TableDepth: Set this to control the depth of subfolders to report as views.
- FileRetrievalDepth: Set this to retrieve files recursively and list them in the Root table.
You can then choose the SFTP entities you want to allow the API Server access to by clicking Settings -> Resources.
Authorize API Server Users
After determining the OData services you want to produce, authorize users by clicking Settings -> Users. The API Server uses authtoken-based authentication and supports the major authentication schemes. Access can also be restricted based on IP address; by default, only connections to the local machine are allowed. You can authenticate as well as encrypt connections with SSL.
Connect to SFTP Data from Power Query
Follow the steps below to import tables that can be refreshed on demand:
- Configure the API Server to use a version of the OData protocol that is recognized by Power Query. In the API Server administration console, click Settings -> Server and change the value of the Default Version property to 3.0.
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From the ribbon in Excel, click Power Query -> From Other Data Sources -> From OData Feed, and enter the OData URL:
https://your-server:8032/api.rsc
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In the next step of the wizard, define authentication credentials and set privacy levels. Select Basic authentication and enter the credentials for a user authorized to make requests. Specify the Username field and enter the user's authtoken in the Password field.
To change the authentication scheme that Power Query will use, click Power Query -> Data Source Settings. Select the OData feed from the list and then click Edit Credential. Select the privacy level from the menu on the Data Source Settings page.
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You can now access SFTP data in Power Query. In the Navigator expand the node for the OData feed, right-click a table, and click Edit to open the Query Editor. This will display the table data.
