SFTP
This page contains the setup guide and reference information for the SFTP source connector.
Prerequisites
- Access to a remote server that supports SFTP
- Host address
- Valid username and password associated with the host server
Setup guide
Step 1: Set up SFTP authentication
To set up the SFTP connector, you will need to select one of the following authentication methods:
- Your username and password credentials associated with the server.
- A private/public key pair.
To set up key pair authentication, you may use the following steps as a guide:
-
Open your terminal or command prompt and use the
ssh-keygencommand to generate a new key pair.noteIf your operating system does not support the
ssh-keygencommand, you can use a third-party tool like PuTTYgen to generate the key pair instead. -
You will be prompted for a location to save the keys, and a passphrase to secure the private key. You can press enter to accept the default location and opt out of a passphrase if desired. Your two keys will be generated in the designated location as two separate files. The private key will usually be saved as
id_rsa, while the public key will be saved with the.pubextension (id_rsa.pub). -
Use the
ssh-copy-idcommand in your terminal to copy the public key to the server.
ssh-copy-id <username>@<server_ip_address>
Be sure to replace your specific values for your username and the server's IP address.
Depending on factors such as your operating system and the specific SSH implementation your remote server uses, you may not be able to use the ssh-copy-id command. If so, please consult your server administrator for the appropriate steps to copy the public key to the server.
- You should now be able to connect to the server via the private key. You can test this by using the
sshcommand:
ssh <username>@<server_ip_address>
For more information on SSH key pair authentication, please refer to the official documentation.
Step 2: Set up the SFTP connector in Airbyte
- Log in to your Airbyte Cloud account, or navigate to your Airbyte Open Source dashboard.
- In the left navigation bar, click Sources. In the top-right corner, click + New source.
- Find and select SFTP from the list of available sources. For Airbyte Cloud users: If you do not see the SFTP source listed, please make sure the Alpha checkbox at the top of the page is checked.
- Enter a Source name of your choosing.
- Enter your Username, as well as the Host Address and Port. The default port for SFTP is 22. If your remote server is using a different port, please enter it here.
- In the Authentication section, use the dropdown menu to select Password Authentication or SSH Key Authentication, then fill in the required credentials. If you are authenticating with a private key, you can upload the file containing the private key (usually named
rsa_id) using the Upload file button. - If you wish to configure additional optional settings, please refer to the next section. Otherwise, click Set up source and wait for the tests to complete.
Optional fields
The Optional fields can be used to further configure the SFTP source connector. If you do not wish to set additional configurations, these fields can be left at their default settings.
- File Types: Enter the desired file types to replicate as comma-separated values. Currently, only CSV and JSON are supported. The default value is
csv,json. - Folder Path: Enter a folder path to specify the directory on the remote server to be synced. For example, given the file structure:
Root
| - logs
| | - 2021
| | - 2022
|
| - files
| | - 2021
| | - 2022
An input of /logs/2022 will only replicate data contained within the specified folder, ignoring the /files and /logs/2021 folders. Leaving this field blank will replicate all applicable files in the remote server's designated entry point.
- File Pattern: Enter a regular expression to specify a naming pattern for the files to be replicated. Consider the following example:
log-([0-9]{4})([0-9]{2})([0-9]{2})
This pattern will filter for files that match the format log-YYYYMMDD, where YYYY, MM, and DD represented four-digit, two-digit, and two-digit numbers, respectively. For example, log-20230713. Leaving this field blank will replicate all files not filtered by the previous two fields.
Supported sync modes
The SFTP source connector supports the following sync modes:
| Feature | Support | Notes |
|---|---|---|
| Full Refresh - Overwrite | ✅ | Warning: this mode deletes all previously synced data in the configured bucket path. |
| Full Refresh - Append Sync | ❌ | |
| Incremental - Append | ❌ | |
| Incremental - Append + Deduped | ❌ | |
| Namespaces | ❌ |
Supported streams
This source provides a single stream per file with a dynamic schema. The current supported file types are CSV and JSON. More formats (e.g. Apache Avro) will be supported in the future.