How upload file authenticated in s3 bucket with python

Question

i usualy used my aplication for upload files in s3 bucket, but accessing aws console, when click in open, the file dont open but do downloaded. why this happened? i am used this code below to upload.
          
```
  s3_client = boto3.client('s3', aws_access_key_id=AWS_ACCESS_KEY_ID, aws_secret_access_key=AWS_SECRET_ACCESS_KEY)
            s3_client.upload_file(file, S3_BUCKET, item_drop_down + '/{}'.format(arquivo.filename))
```

Answer

I thing found the problem, but i dont know to resolved! the metadate value need application/pdf, but how to change this value ?![Enter image description here](/media/postImages/original/IMfS1-zU_vQmS8dgzXR9ETuw)

Answer

Seems like your bucket is public but not the object's in bucket, that's why when you click on the uploaded file/object it isn't opening but you are able to download the same.

How upload file authenticated in s3 bucket with python

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