JSON Writer

The node takes the JSON documents of the selected column and writes them, each in a separate file, into a directory. It will append the paths of the written files to the input table as well as the corresponding write status (created, unmodified, overwritten). This node can access a variety of different file systems. More information about file handling in KNIME can be found in the official File Handling Guide.

Options

Folder

The folder to write the JSON files to.

Create missing folders

If enabled, missing folders in the specified path will be created automatically.

If exists

Specify the behavior of the node in case the output file already exists.

• Fail: Will issue an error during the node's execution (to prevent unintentional overwrite).
• Overwrite: Will replace any existing file.
• Ignore: Will ignore if a file already exists and continues the copying process.

JSON column

Column containing the JSON to write.

Remove JSON column

If checked, the column containing the JSON is removed from the output table.

Compress JSON files (gzip)

If checked, the JSON files will be compressed to gzip.

File generation mode

Select how output file names should be determined.

• Generate: Generate file names using a pattern with an incrementing counter.
• From column: Use file names from a selected column.

File names

The file names will be generated using the provided pattern. The pattern must contain a single "?" symbol. This symbol will, during execution, be replaced by an incrementing counter to make the filenames unique. The file extension will be detected automatically and must not be specified.

File name column

Column containing the file names under which the corresponding JSON files will be stored.

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Workflows

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