HTTP(S) Connector

This node connects to a web server with HTTP(S). The resulting output port allows downstream nodes to read files from a webserver.

Note: This connector provides very limited functionality! It does not support listing, writing or deleting files/folders, nor is it possible to create folders on the webserver. The only operation supported is reading single files. Hence, with this file system it is not possible to interactively browse files, use Writer nodes (e.g. CSV Writer), or read multiple files with a Reader node.

Path syntax: Paths for HTTP(S) are specified with a UNIX-like syntax, and may be suffixed with a query ('?') and or fragment ('#). Non-alphanumeric characters in paths - such as whitespace (" ") - must be percent-encoded. For example /my%20folder/resource?myparam=myvalue#myfragment is an absolute path that consists of:

A leading slash (/).
The name of a folder (my folder with percent-encoding), followed by a slash.
Followed by the name of a file/resource (resource).
Followed by an (optional) query (?myparam=myvalue).
Followed by an (optional) fragment (#myfragment).

Options

Settings

URL

Base URL that specifies the protocol (http or https), a host, an optional port as well as an optional path, which will be used as the working directory of the file system connection. Example: https://hub.knime.com/knime/extensions.. The working directory allows downstream nodes to access files using relative paths, i.e. paths that do not have a leading slash. If no path is specified in the URL, then the working directory is assumed to be /.

Authentication

Method of authentication to use.

Basic: Authenticate with HTTP Basic authentication. Either enter a username and password, in which case the password will be persistently stored (in encrypted form) with the workflow. Or check Use credentials and a select a credentials flow variable to supply the username and password.
None: No authentication will be performed.

Advanced

Connection timeout: Timeout in seconds to establish a connection or 0 for an infinite timeout.
Read timeout: Timeout in seconds to read a server response from a connection, or 0 for an infinite timeout.
Follow redirects: If checked, the node will follow redirects (HTTP status code 3xx).
Ignore hostname mismatches: If checked, the node trusts the server's SSL certificate even if it was generated for a different host.
Trust all certificates: If checked, the node trusts all certificates regardless of their origin or expiration date.

Input Ports

This node has no input ports

Output Ports

: HTTP(S) File System Connection.

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Workflows

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Installation

To use this node in KNIME, install the extension KNIME Basic File System Connectors from the below update site following our NodePit Product and Node Installation Guide:

v5.3

A zipped version of the software site can be downloaded here.

Plugin provider: KNIME AG, Zurich, Switzerland

Plugin version: 5.3.0.v202405291933

On NodePit since: 2024-07-09

Last update: 2024-11-15

KNIME versions: Since v4.3

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