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manandearth 2019-03-05T09:51:40.013600Z
Hi there. New to pedestal. Happy to be corrected.
I was extending the example in the official pedestal guide (specifically the rest api example: http://pedestal.io/guides/your-first-api)
Wanted to implement a :delete interceptor (just in order to understand). tried the following:
(def list-delete
{:name :list-delete
:enter
(fn [context]
(let [nm (get-in context [:request :query-params :name])
db-id (filter (comp #{nm} (:tx-data context)) (keys (:tx-data context)))]
(update context :tx-data dissoc db-id)))})
(def list-create
{:name :list-create
:enter
(fn [context]
(let [nm (get-in context [:request :query-params :name] "Unnamed List")
new-list (make-list nm)
db-id (str (gensym "l"))]
(assoc context :tx-data [assoc db-id new-list])))})
:post is: ["/todo" :post [db-interceptor list-create]]
so my :delete root is: ["/todo" :delete [db-interceptor list-delete]]
But trying the test: (test-request :delete "/todo?name=some-list")
when the state is:
{"l30491" {:name "my-other-list", :items {}}, "l30517" {:name "yes-list", :items {}}, "l30520" {:name "no-list", :items {}}, "l30527" {:name "no-list", :items {}}, "l30618" {:name "some-list", :items {}}}
some-list is the :name value in a map which is a value of the string "l30618" ... I think that my list-delete function should do the job, but I suspect that I don't understand something basic either about interceptors or about how :delete should be called in a REST api....
2019-03-05T22:06:14.014800Z
@adamgefen At a glance, it doesn’t look like your list-delete impl is correct
2019-03-05T22:06:36.015100Z
the filter expression looks wrong