...

This method of working with JSON is disabled enabled by default.

...

You can choose to continue using the legacy method of working with JSON.

You should migrate your flows to using the new version.

...

• Recommended limit of 1 GB in source file size. Since conversion happens within the 

  D s node

  , this limit may vary depending on the memory of the 

  D s node

  .
• Filename extensions must be .json or .JSON format. 
• Conversion of compressed JSON files is not supported. Compressed JSON files can be imported using the previous method. See Working with JSON v1.

• For best results, all keys and values should be quoted and imported as strings. 

  Info
  NOTE: Escape characters that make JSON invalid can cause your JSON file to fail to import.

  • You can escape quote values to treat them as literals in your strings using the backslash character. For example: \"

  • When the values are imported into the Transformer page, the 

    D s webapp

     re-infers the data type for each column.

...