resource with image as externalLink generates invalid markdown

[jeffutter]

I have a memo setup that hosts files (including images) in S3 compatible storage.

The resource returned from the memo API has a direct link to the image under externalLink.

Given that, this code here: https://github.com/quanru/obsidian-periodic-para/blob/22046390e73b9e6a517a43eff15fa5847c513192/src/util.ts#L122-L129 generates invalid markdown.

It generates ![[http://mydomain.com/files/path/to/file.png]].

That syntax is expecting a local file. Ideally, this plugin would download the linked file and store it in my vault. However, second to that generating a valid markdown image embed like ![file.png](http://mydomain.com/files/path/to/file.png) would also be OK.

The resource payload includes type: "image/png" so we could hopefully use that to detect images that should generate different markdown.

[quanru]

1. external link can't be download due to cors problem
2. how to deal with external link which is not image?

[quanru]

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