[PYTHON] Put the file uploaded by django into MinIO

Overview

-When you create a file upload endpoint using django, the procedure to put the acquired file object into MinIO (https://min.io/) as it is --Memorandum

Premise

--Environment - python: v.3.7.7 - django: v.2.0.3 - minio: 5.0.13

Template --Prepare a template for simple upload

{% extends 'base.html' %} //Load the base if necessary
{% block content %}
//Enctype description is required for file upload
<form method="POST" action="{% url 'upload_to_minio' %}" enctype="multipart/form-data">
    {% csrf_token %}
    //Input for file upload
    <p>
        <label for="myfile">File:</label>
        <input type="file" name="myfile" required id="myfile">    
    </p>
    //Upload button
    <button type=“submit”>upload</button>
</form>
{% endblock %}

urs.py --Set the URL for the upload endpoint

urlpatterns = [
    path("umc/upload_to_minio/", views.UploadToMinio.as_view(), name="upload_to_minio"
]

views.py --Write the logic to get the uploaded file information and store it in MinIO

class UploadToMinio(generic.View, LoginRequiredMixin):
    def post(self, request, *args, **kwargs):
        try:
            #The uploaded file is a request.Stored in FILES
            myfile = self.request.FILES['myfile']
            #Read the binary data of the file into memory
            #Be careful when handling huge files
            file_obj = myfile.read()
            #Get file size
            file_size = myfile.size

            #Bucket name of storage destination
            bucket_name = 'hoge'
            #Storage destination object name
            object_name = 'fuga'

            # minio client
            minioClient = Minio(
                'host:port', #MinIO access destination
                access_key='access_key', #Access for each environment_key
                secret_key='secret_key', #Secret of each environment_key
                secure=True) #True for https communication

            #Create bucket if it doesn't exist
            if not minioClient.bucket_exists(project_id):
                minioClient.make_bucket(bucket_name=bucket_name)

            #Creating an object
            minioClient.put_object(
                bucket_name=project_id,
                object_name=uuid,
                data=io.BytesIO(file_obj),
                length=file_size
            )

--data in put_object only accepts objects that inherit from ʻio.RawIOBase. Therefore, the object in memory is converted to a binary stream with ʻio.BytesIO () .

This should work