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+# Integrations
+
+## Rocket integration
+
+Enabling the `with-rocket` feature appends an implementation of Rocket's
+`Responder` trait for each template type. This makes it easy to trivially
+return a value of that type in a Rocket handler. See
+[the example](https://github.com/djc/askama/blob/master/askama_rocket/tests/basic.rs)
+from the Askama test suite for more on how to integrate.
+
+In case a run-time error occurs during templating, a `500 Internal Server
+Error` `Status` value will be returned, so that this can be further
+handled by your error catcher.
+
+## Iron integration
+
+Enabling the `with-iron` feature appends an implementation of Iron's
+`Modifier<Response>` trait for each template type. This makes it easy to
+trivially return a value of that type in an Iron handler. See
+[the example](https://github.com/djc/askama/blob/master/askama_iron/tests/basic.rs)
+from the Askama test suite for more on how to integrate.
+
+Note that Askama's generated `Modifier<Response>` implementation currently
+unwraps any run-time errors from the template. If you have a better
+suggestion, please [file an issue](https://github.com/djc/askama/issues/new).
+
+## Actix-web integration
+
+Enabling the `with-actix-web` feature appends an implementation of Actix-web's
+`Responder` trait for each template type. This makes it easy to trivially return
+a value of that type in an Actix-web handler. See
+[the example](https://github.com/djc/askama/blob/master/askama_actix/tests/basic.rs)
+from the Askama test suite for more on how to integrate.
+
+## Gotham integration
+
+Enabling the `with-gotham` feature appends an implementation of Gotham's
+`IntoResponse` trait for each template type. This makes it easy to trivially
+return a value of that type in a Gotham handler. See
+[the example](https://github.com/djc/askama/blob/master/askama_gotham/tests/basic.rs)
+from the Askama test suite for more on how to integrate.
+
+In case of a run-time error occurring during templating, the response will be of the same
+signature, with a status code of `500 Internal Server Error`, mime `*/*`, and an empty `Body`.
+This preserves the response chain if any custom error handling needs to occur.
+
+## Warp integration
+
+Enabling the `with-warp` feature appends an implementation of Warp's `Reply`
+trait for each template type. This makes it simple to return a template from
+a Warp filter. See [the example](https://github.com/djc/askama/blob/master/askama_warp/tests/warp.rs)
+from the Askama test suite for more on how to integrate.
+
+## The `json` filter
+
+Enabling the `serde-json` filter will enable the use of the `json` filter.
+This will output formatted JSON for any value that implements the required
+`Serialize` trait.
+
+```
+{
+  "foo": "{{ foo }}",
+  "bar": {{ bar|json }}
+}
+```
+
+## The `yaml` filter
+
+Enabling the `serde-yaml` filter will enable the use of the `yaml` filter.
+This will output formatted JSON for any value that implements the required
+`Serialize` trait.
+
+```
+{{ foo|yaml }}
+```
+\ No newline at end of file