compojure.api.resource — metosin/compojure-api 1.1.13

Options clj

resource clj

(resource info)

(resource info options)

Creates a nested compojure-api Route from enchanced ring-swagger operations map and options. By default, applies both request- and response-coercion based on those definitions.

Options:

• :coercion A function from request->type->coercion-matcher, used in resource coercion for :body, :string and :response. Setting value to (constantly nil) disables both request- & response coercion. See tests and wiki for details.

Enchancements to ring-swagger operations map:

1. :parameters use ring request keys (query-params, path-params, ...) instead of swagger-params (query, path, ...). This keeps things simple as ring keys are used in the handler when destructuring the request.

2. at resource root, one can add any ring-swagger operation definitions, which will be available for all operations, using the following rules:

2.1) :parameters are deep-merged into operation :parameters 2.2) :responses are merged into operation :responses (operation can fully override them) 2.3) all others (:produces, :consumes, :summary,...) are deep-merged by compojure-api

3. special key :handler either under operations or at top-level. Value should be a ring-handler function, responsible for the actual request processing. Handler lookup order is the following: operations-level, top-level.

4. request-coercion is applied once, using deep-merged parameters for a given operation or resource-level if only resource-level handler is defined.

5. response-coercion is applied once, using merged responses for a given operation or resource-level if only resource-level handler is defined.

Note: Swagger operations are generated only from declared operations (:get, :post, ..), despite the top-level handler could process more operations.

Example:

(resource {:parameters {:query-params {:x Long}} :responses {500 {:schema {:reason s/Str}}} :get {:parameters {:query-params {:y Long}} :responses {200 {:schema {:total Long}}} :handler (fn [request] (ok {:total (+ (-> request :query-params :x) (-> request :query-params :y))}))} :post {} :handler (constantly (internal-server-error {:reason "not implemented"}))})