Cannot execute the demo code for writing a parquet file.

[ironsource]

Cannot execute the demo code for writing a parquet file.

[ZJONSSON]

There is no such thing as parquet.ParquetFileWriter. The prevailing pattern is to execute parquet.ParquetWriter.openFile(schema,path,options) which returns a promise to the writer. You can either execute within an async function and await on the writer:

let writer = await parquet.ParquetWriter.openFile(schema, 'fruits.parquet');

or use the writer within a .then

await parquet.ParquetWriter.openFile(schema, 'fruits.parquet')
  .then(writer = {
      // write stuff
   });

See example in the integration tests:
https://github.com/ironSource/parquetjs/blob/master/test/integration.js#L99-L113

[dogenius01]

@ZJONSSON
Thank you!
But the code above is copied from https://www.npmjs.com/package/parquetjs.
And it gives me an error, when i try >> writer.appendRow... >> SyntaxError: Unexpected token .