Blob Get By File Name

[andscoop]

My current understanding of the API is that in order to download a file (blobs_get) you must have a file key. In order to obtain a file key you must call files_list which requires commitId. In order to get a commitId you must run a file and check the status of that run.

Is there a better way to obtain the file key through the API? Currently downloading a file through the API is nearly pointless if I have to run a file first.

[InbarRose]

I am having the same issue. I also want this solution.

It would be great to be able to download a file by simply providing the file-path (perhaps a different function). Even if I still have to provide the commitId. But I would also like to be able to leave commitId None and it simply take the commitId of the latest state of the project.

For anyone interested, here is the workaround I wrote using the logic you mentioned above:

def download_file(domino, file_path, local_path):
    # == start run : this can take a while ==
    # start a new run with a script that doesn't do anything
    run_results = domino.runs_start_blocking(command=['no-op-script.py'])
    # extract the run id
    run_id = run_results['runId']
    # fetch information about the run with the run_id
    run_info = domino.get_run_info(run_id)
    # find the commit_id of that run
    commit_id = run_info['commitId']  # maybe need to use 'outputCommitId'

    # == find file blob : this could fail, make sure you have the right path! ==
    # fetch all the files in this commit
    files_list = domino.files_list(commit_id)
    # make a list of files
    files = files_list['data']
    # iterate through all the files looking for file with matching path
    for f in files:
        if f['path'] == file_path:
            # save file key when we find the right file
            file_key = f['key']
            # stop looping over files
            break
    else:
        # if we didn't find the file, lets raise an exception
        raise RuntimeError('could not find file with path ({}) in commitId ({})'.format(
            file_path, commit_id))

    # == download file : saves the file to a local path ==
    # get the file object with the file key
    file_object = domino.blobs_get(file_key)
    # read the file object into a string
    file_content = file_object.read()
    # open a file locally to save file contents
    if not os.path.exists(os.path.dirname(local_path)):
        # if file save path dir does not exist we need to create it
        os.makedirs(os.path.dirname(local_path))
    # write file
    with open(local_path, 'wb') as f:
        f.write(file_content)