Python Requests: Post JSON and file in single request

Question

I need to do a API call to upload a file along with a JSON string with details about the file.

I am trying to use the python requests lib to do this:

Answer 1

What is more:

files = {
    'document': open('file_name.pdf', 'rb')
}

That will only work if your file is at the same directory where your script is.

If you want to append file from different directory you should do:

files = {
    'document': open(os.path.join(dir_path, 'file_name.pdf'), 'rb')
}

Where dir_path is a directory with your 'file_name.pdf' file.

But what if you'd like to send multiple PDFs ?

You can simply make a custom function to return a list of files you need (in your case that can be only those with .pdf extension). That also includes files in subdirectories (search for files recursively):

def prepare_pdfs():
    return sorted([os.path.join(root, filename) for root, dirnames, filenames in os.walk(dir_path) for filename in filenames if filename.endswith('.pdf')])

Then you can call it:

my_data = prepare_pdfs()

And with simple loop:

for file in my_data:

    pdf = open(file, 'rb')

    files = {
        'document': pdf
    }

    r = requests.post(url, files=files, ...)