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Merge pull request #476 from metosin/feature/update-static-handler-docs

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Document serving static resources from the file system
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Miikka Koskinen 2021-04-09 14:55:19 +03:00 committed by GitHub
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doc/ring/static.md
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# Static Resources (Clojure Only) # Static Resources (Clojure Only)
Static resources can be served using `reitit.ring/create-resource-handler`. It takes optionally an options map and returns a ring handler to serve files from Classpath. Static resources can be served by using the following two functions:
There are two options to serve the files. * `reitit.ring/create-resource-handler`, which returns a Ring handler that serves files from classpath, and
* `reitit.ring/create-file-handler`, which returns a Ring handler that servers files from file system
There are two ways to mount the handlers.
The examples below use `reitit.ring/create-resource-handler`, but `reitit.ring/create-file-handler` works the same way.
## Internal routes ## Internal routes
@ -33,7 +37,9 @@ To serve static files with conflicting routes, e.g. `"/*"`, one needs to disable
## External routes ## External routes
A better way to serve files from conflicting paths, e.g. `"/*"`, is to serve them from the default-handler. One can compose multiple default locations using `ring-handler`. This way, they are only served if none of the actual routes have matched. A better way to serve files from conflicting paths, e.g. `"/*"`, is to serve them from the default-handler.
One can compose multiple default locations using `reitit.ring/ring-handler`.
This way, they are only served if none of the actual routes have matched.
```clj ```clj
(ring/ring-handler (ring/ring-handler
@ -46,10 +52,10 @@ A better way to serve files from conflicting paths, e.g. `"/*"`, is to serve the
## Configuration ## Configuration
`reitit.ring/create-resource-handler` takes optionally an options map to configure how the files are being served. `reitit.ring/create-file-handler` and `reitit.ring/create-resource-handler` take optionally an options map to configure how the files are being served.
| key | description | | key | description |
| -----------------|-------------| | -------------------|-------------|
| :parameter | optional name of the wildcard parameter, defaults to unnamed keyword `:` | :parameter | optional name of the wildcard parameter, defaults to unnamed keyword `:`
| :root | optional resource root, defaults to `\"public\"` | :root | optional resource root, defaults to `\"public\"`
| :path | path to mount the handler to. Required when mounted outside of a router, does not work inside a router. | :path | path to mount the handler to. Required when mounted outside of a router, does not work inside a router.
@ -58,9 +64,7 @@ A better way to serve files from conflicting paths, e.g. `"/*"`, is to serve the
| :not-found-handler | optional handler function to use if the requested resource is missing (404 Not Found) | :not-found-handler | optional handler function to use if the requested resource is missing (404 Not Found)
### TODO ### TODO
* support for things like `:cache`, `:etag`, `:last-modified?`, and `:gzip` * support for things like `:cache`, `:etag`, `:last-modified?`, and `:gzip`
* support for ClojureScript * support for ClojureScript
* serve from file-system