Listing and Reading all the files in a Managed Folder

Hi SuhasChinku,

One option would be to use a Python recipe to read in the inputs of this HDFS managed folder, filter on the file names (using regex), and then copying over the files accordingly to the appropriate output managed folders by using the read/write APIs.

import dataiku
import re

# Read inputs and managed folders. Make sure to use the appropriate managed folder IDs. 
input_folder = dataiku.Folder("INPUT_MANAGED_FOLDER_ID")
paths = input_folder.list_paths_in_partition()
output_folder1 = dataiku.Folder("OUTPUT_MANAGED_FOLDER1_ID")
output_folder2 = dataiku.Folder("OUTPUT_MANAGED_FOLDER2_ID")

# Iterate through files, check if they fit certain regex condition, and write them to output managed folders accordingly.
x=0
for paths[x] in paths:
    # Check if file starts with "/File_" and, if so, copy the file to the first output managed folder. Replace with appropriate regex as needed.
    if re.match(r"/[F|f]ile_\d+", paths[x]):
        with input_folder.get_download_stream(paths[x]) as f:
            data = f.read()
        with output_folder1.get_writer(paths[x]) as w:
            w.write(data)
    # Check if file starts with "/Input_file_" and, if so, copy the file to the second output managed folder. Replace with appropriate regex as needed.
    if re.match(r"/[i|I]nput_file_\d+", paths[x]):
        with input_folder.get_download_stream(paths[x]) as f:
            data = f.read()
        with output_folder2.get_writer(paths[x]) as w:
            w.write(data)
x +=1

I hope that this helps!

Best,

Andrew

Hi,

Please note that endpoints are meant to be deployed to API nodes so you should generally not be using internal dataiku APIs from your endpoint as these endpoints are independent from your design node. If you wish to call a local managed folder, please follow the steps defined here to "package" your managed folder so that it can be referenced from your python API endpoint:

https://doc.dataiku.com/dss/latest/apinode/endpoint-python-function.html#using-managed-folders

Thanks,

Andrew