python - AWS Content Type Settings in S3 Using Boto3

Question

I am trying to upload a web page to an S3 bucket using Amazon's Boto3 SDK for Python.

I am having trouble setting the Content-Type. AWS keeps creating a new metadata key for Content-Type in addition to the one I'm specifying using this code:

# Upload a new file
data = open('index.html', 'rb')
x = s3.Bucket('website.com').put_object(Key='index.html', Body=data)
x.put(Metadata={'Content-Type': 'text/html'})

Any guidance of how to set Content-Type to text/html would be greatly appreciated.

Answer 1

Content-Type isn't custom metadata, which is what Metadata is used for. It has its own property which can be set like this:

bucket.put_object(Key='index.html', Body=data, ContentType='text/html')

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Note: .put_object() can set more than just Content-Type. Check out the Boto3 documentation for the rest.