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liberator-mixin.hal.core

A liberator mixin to add HAL support to liberator.

In short:

  • Adds application/hal+json as a supported media type.
  • Adds support for JSON serialisation for maps and seqs for the HAL media type.
  • Adds support for halboy resource serialisation.
  • Adds a default handler responding with an empty HAL resource for :handle-not-found.
  • Adds a HAL error representation for use with the [[liberator-mixin.validation.core|validation mixin]].

Depends on:

  • the [[liberator-mixin.json.core|JSON mixin]],
  • the [[liberator-mixin.hypermedia.core|hypermedia mixin]].

Optionally extends:

  • the [[liberator-mixin.validation.core|validation mixin]].

JSON serialisation support

The JSON serialisation support for the application/hal+json media type uses the same underlying JSON encoder as the [[liberator-mixin.json.core|JSON mixin]]. If that mixin is configured with a custom JSON encoder, all application/hal+json responses will use the custom JSON encoder.

halboy Resource support

The halboy resource support will add a :discovery link to any returned resource and expects bidi :routes to be available in the context, containing a route named :discovery. The [[liberator-mixin.hypermedia.core|hypermedia mixin]] adds routes to the context so nothing further is needed if that mixin is in use.

A liberator mixin to add
[HAL](https://tools.ietf.org/html/draft-kelly-json-hal-00) support to
liberator.

In short:

  - Adds `application/hal+json` as a supported media type.
  - Adds support for JSON serialisation for maps and seqs for the HAL
    media type.
  - Adds support for [halboy](https://github.com/jimmythompson/halboy)
    resource serialisation.
  - Adds a default handler responding with an empty HAL resource for
    `:handle-not-found`.
  - Adds a HAL error representation for use with the
    [[liberator-mixin.validation.core|validation mixin]].

Depends on:

  - the [[liberator-mixin.json.core|JSON mixin]],
  - the [[liberator-mixin.hypermedia.core|hypermedia mixin]].

Optionally extends:

  - the [[liberator-mixin.validation.core|validation mixin]].

### JSON serialisation support

The JSON serialisation support for the `application/hal+json` media type uses
the same underlying JSON encoder as the
[[liberator-mixin.json.core|JSON mixin]]. If that mixin is configured with a
custom JSON encoder, all `application/hal+json` responses will use the custom
JSON encoder.

### halboy `Resource` support

The [halboy](https://github.com/jimmythompson/halboy) resource support
will add a `:discovery` link to any returned resource and expects `bidi`
`:routes` to be available in the `context`, containing a route named
`:discovery`. The [[liberator-mixin.hypermedia.core|hypermedia mixin]] adds
routes to the `context` so nothing further is needed if that mixin is in use.
raw docstring

hal-media-typeclj

The HAL media type string.

The HAL media type string.
sourceraw docstring

with-exception-handlerclj

(with-exception-handler)

Returns a mixin which adds a generic exception handler, logging the exception and returning an error representation masking the exception.

This mixin expects a :logger to be present on the resource. If no :logger is found, nothing will be logged.

Returns a mixin which adds a generic exception handler, logging the
exception and returning an error representation masking the exception.

This mixin expects a `:logger` to be present on the resource. If no `:logger`
is found, nothing will be logged.
sourceraw docstring

with-forbidden-handlerclj

(with-forbidden-handler)
source

with-hal-error-representationclj

(with-hal-error-representation)

Returns a mixin adding a HAL error representation factory function to the resource, at :error-representation, for use by other mixins, such as liberator-mixin.validation when they need to render errors.

The error representation factory function expects the context to include a :self href, an :error-id and an :error-context used in the resulting representation.

Returns a mixin adding a HAL error representation factory function to the
resource, at `:error-representation`, for use by other mixins, such as
`liberator-mixin.validation` when they need to render errors.

The error representation factory function expects the context to include
a `:self` href, an `:error-id` and an `:error-context` used in the resulting
representation.
sourceraw docstring

with-hal-media-typeclj

(with-hal-media-type)

Returns a mixin to add the HAL media type to the available media types.

Returns a mixin to add the HAL media type to the available media types.
sourceraw docstring

with-hal-mixinclj

(with-hal-mixin _)
source

with-method-not-allowed-handlerclj

(with-method-not-allowed-handler)
source

with-not-found-handlerclj

(with-not-found-handler)
source

with-unauthorized-handlerclj

(with-unauthorized-handler)
source

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