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20 lines
1.2 KiB
Markdown
20 lines
1.2 KiB
Markdown
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# Media handling
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Surely media should be as easy as just putting a URL into an `img` and calling it good, right?
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Not quite. Matrix uses something called a Matrix Content URI (better known as MXC URI) to identify
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content, which is then converted to a regular HTTPS URL on the homeserver. However, sometimes that
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URL can change depending on deployment considerations.
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The react-sdk features a [customisation endpoint](https://github.com/vector-im/element-web/blob/develop/docs/customisations.md)
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for media handling where all conversions from MXC URI to HTTPS URL happen. This is to ensure that
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those obscure deployments can route all their media to the right place.
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For development, there are currently two functions available: `mediaFromMxc` and `mediaFromContent`.
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The `mediaFromMxc` function should be self-explanatory. `mediaFromContent` takes an event content as
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a parameter and will automatically parse out the source media and thumbnail. Both functions return
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a `Media` object with a number of options on it, such as getting various common HTTPS URLs for the
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media.
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**It is extremely important that all media calls are put through this customisation endpoint.** So
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much so it's a lint rule to avoid accidental use of the wrong functions.
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