diff --git a/CHANGELOG.md b/CHANGELOG.md
index 738df37d..7a12fd80 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,13 +12,22 @@ We use [Break Versioning][breakver]. The version numbers follow a `<major>.<mino
 
 [breakver]: https://github.com/ptaoussanis/encore/blob/master/BREAK-VERSIONING.md
 
-## Unreleased
+## UNRELEASED
 
 ### `reitit-frontend`
 
 - `reitit.frontend.easy/start!` now correctly removes old event listeners
 when called repeatedly (e.g. with hot code reload workflow)
 ([#438](https://github.com/metosin/reitit/pull/438))
+* updated deps:
+
+```clj
+[metosin/malli "0.1.0"] is available but we use "0.0.1-20200924.063109-27"
+[com.fasterxml.jackson.core/jackson-core "2.11.3"] is available but we use "2.11.2"
+[com.fasterxml.jackson.core/jackson-databind "2.11.3"] is available but we use "2.11.2"
+[expound "0.8.6"] is available but we use "0.8.5"
+[ring/ring-core "1.8.2"] is available but we use "1.8.1"
+```
 
 ## 0.5.6 (2020-09-26)
 
diff --git a/README.md b/README.md
index 33c6dca9..45aeb0ea 100644
--- a/README.md
+++ b/README.md
@@ -6,12 +6,12 @@ A fast data-driven router for Clojure(Script).
 * Route [conflict resolution](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/basics/route-conflicts/)
 * First-class [route data](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/basics/route-data/)
 * Bi-directional routing
-* [Pluggable coercion](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/coercion/coercion/) ([malli](https://github.com/metosin/malli), [schema](https://github.com/plumatic/schema) & [clojure.spec](https://clojure.org/about/spec))
-* Helpers for [ring](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/ring/ring/), [http](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/http/interceptors/), [pedestal](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/http/pedestal/) & [frontend](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/frontend/basics/)
+* [Pluggable coercion](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/coercion/coercion-explained) ([malli](https://github.com/metosin/malli), [schema](https://github.com/plumatic/schema) & [clojure.spec](https://clojure.org/about/spec))
+* Helpers for [ring](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/ring/ring-router), [http](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/http/interceptors/), [pedestal](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/http/pedestal/) & [frontend](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/frontend/basics/)
 * Friendly [Error Messages](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/basics/error-messages/)
 * Extendable
 * Modular
-* [Fast](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/performance/)
+* [Fast](https://cljdoc.org/d/metosin/reitit/CURRENT/doc/misc/performance)
 
 Presentations:
 * [Reitit, The Ancient Art of Data-Driven](https://www.slideshare.net/mobile/metosin/reitit-clojurenorth-2019-141438093), Clojure/North 2019, [video](https://youtu.be/cSntRGAjPiM)
@@ -151,6 +151,7 @@ All examples are in https://github.com/metosin/reitit/tree/master/examples
   * [startrek-ui](https://git.sr.ht/~dharrigan/startrek-ui)
 * https://www.learnreitit.com/
 * Lipas, liikuntapalvelut: https://github.com/lipas-liikuntapaikat/lipas
+* Implementation of the Todo-Backend API spec, using Clojure, Ring/Reitit and next-jdbc: https://github.com/PrestanceDesign/todo-backend-clojure-reitit
 
 ## More info
 
diff --git a/modules/reitit-interceptors/src/reitit/http/interceptors/muuntaja.clj b/modules/reitit-interceptors/src/reitit/http/interceptors/muuntaja.clj
index f697bfa4..47f00cbb 100644
--- a/modules/reitit-interceptors/src/reitit/http/interceptors/muuntaja.clj
+++ b/modules/reitit-interceptors/src/reitit/http/interceptors/muuntaja.clj
@@ -9,6 +9,16 @@
 (defn- displace [x] (with-meta x {:displace true}))
 (defn- stripped [x] (select-keys x [:enter :leave :error]))
 
+(defn- publish-swagger-data? [{:keys [form body]}]
+  (not (and (some? form)
+            (nil? body))))
+
+(defn- swagger-data [parameters muuntaja]
+  (if (publish-swagger-data? parameters)
+    {:data {:swagger {:produces (displace (m/encodes muuntaja))
+                      :consumes (displace (m/decodes muuntaja))}}}
+    {}))
+
 (defn format-interceptor
   "Interceptor for content-negotiation, request and response formatting.
 
@@ -22,6 +32,8 @@
   Encodes the response body using the `:muuntaja/response` key in request if the response
   doesn't have `Content-Type` header already set.
 
+  Swagger-data will be omitted when `:form`, but no `:body`, parameters are defined.
+
   Optionally takes a default muuntaja instance as argument.
 
   | key          | description |
@@ -32,12 +44,11 @@
   ([default-muuntaja]
    {:name ::format
     :spec ::spec
-    :compile (fn [{:keys [muuntaja]} _]
+    :compile (fn [{:keys [muuntaja parameters]} _]
                (if-let [muuntaja (or muuntaja default-muuntaja)]
                  (merge
                    (stripped (muuntaja.interceptor/format-interceptor muuntaja))
-                   {:data {:swagger {:produces (displace (m/encodes muuntaja))
-                                     :consumes (displace (m/decodes muuntaja))}}})))}))
+                   (swagger-data parameters muuntaja))))}))
 
 (defn format-negotiate-interceptor
   "Interceptor for content-negotiation.
@@ -66,6 +77,8 @@
   Decodes the request body into `:body-params` using the `:muuntaja/request` key in request
   if the `:body-params` doesn't already exist.
 
+  Swagger-data will be omitted when `:form`, but no `:body`, parameters are defined.
+
   Optionally takes a default muuntaja instance as argument.
 
   | key          | description |
@@ -76,11 +89,12 @@
   ([default-muuntaja]
    {:name ::format-request
     :spec ::spec
-    :compile (fn [{:keys [muuntaja]} _]
+    :compile (fn [{:keys [muuntaja parameters]} _]
                (if-let [muuntaja (or muuntaja default-muuntaja)]
                  (merge
                    (stripped (muuntaja.interceptor/format-request-interceptor muuntaja))
-                   {:data {:swagger {:consumes (displace (m/decodes muuntaja))}}})))}))
+                   (when (publish-swagger-data? parameters)
+                     {:data {:swagger {:consumes (displace (m/decodes muuntaja))}}}))))}))
 
 (defn format-response-interceptor
   "Interceptor for response formatting.
@@ -88,6 +102,8 @@
   Encodes the response body using the `:muuntaja/response` key in request if the response
   doesn't have `Content-Type` header already set.
 
+  Swagger-data will be omitted when `:form`, but no `:body`, parameters are defined.
+
   Optionally takes a default muuntaja instance as argument.
 
   | key          | description |
@@ -98,8 +114,9 @@
   ([default-muuntaja]
    {:name ::format-response
     :spec ::spec
-    :compile (fn [{:keys [muuntaja]} _]
+    :compile (fn [{:keys [muuntaja parameters]} _]
                (if-let [muuntaja (or muuntaja default-muuntaja)]
                  (merge
                    (stripped (muuntaja.interceptor/format-response-interceptor muuntaja))
-                   {:data {:swagger {:produces (displace (m/encodes muuntaja))}}})))}))
+                   (when (publish-swagger-data? parameters)
+                     {:data {:swagger {:produces (displace (m/encodes muuntaja))}}}))))}))
diff --git a/modules/reitit-interceptors/src/reitit/http/interceptors/parameters.clj b/modules/reitit-interceptors/src/reitit/http/interceptors/parameters.clj
index 0a21ba20..5731744e 100644
--- a/modules/reitit-interceptors/src/reitit/http/interceptors/parameters.clj
+++ b/modules/reitit-interceptors/src/reitit/http/interceptors/parameters.clj
@@ -11,6 +11,10 @@
   :params       - a merged map of all types of parameter"
   []
   {:name ::parameters
+   :compile (fn [{:keys [parameters]} _]
+              (if (and (some? (:form parameters)) (nil? (:body parameters)))
+                {:data {:swagger {:consumes ["application/x-www-form-urlencoded"]}}}
+                {}))
    :enter (fn [ctx]
             (let [request (:request ctx)]
               (assoc ctx :request (params/params-request request))))})
diff --git a/modules/reitit-middleware/src/reitit/ring/middleware/muuntaja.clj b/modules/reitit-middleware/src/reitit/ring/middleware/muuntaja.clj
index faa44e2c..abe62733 100644
--- a/modules/reitit-middleware/src/reitit/ring/middleware/muuntaja.clj
+++ b/modules/reitit-middleware/src/reitit/ring/middleware/muuntaja.clj
@@ -8,6 +8,16 @@
 
 (defn- displace [x] (with-meta x {:displace true}))
 
+(defn- publish-swagger-data? [{:keys [form body]}]
+  (not (and (some? form)
+            (nil? body))))
+
+(defn- swagger-data [parameters muuntaja]
+  (if (publish-swagger-data? parameters)
+    {:data {:swagger {:produces (displace (m/encodes muuntaja))
+                      :consumes (displace (m/decodes muuntaja))}}}
+    {}))
+
 (def format-middleware
   "Middleware for content-negotiation, request and response formatting.
 
@@ -21,16 +31,18 @@
   Encodes the response body using the `:muuntaja/response` key in request if the response
   doesn't have `Content-Type` header already set.
 
+  Swagger-data will be omitted when `:form`, but no `:body`, parameters are defined.
+
   | key          | description |
   | -------------|-------------|
   | `:muuntaja`  | `muuntaja.core/Muuntaja` instance, does not mount if not set."
   {:name ::format
    :spec ::spec
-   :compile (fn [{:keys [muuntaja]} _]
+   :compile (fn [{:keys [muuntaja parameters]} _]
               (if muuntaja
-                {:data {:swagger {:produces (displace (m/encodes muuntaja))
-                                  :consumes (displace (m/decodes muuntaja))}}
-                 :wrap #(muuntaja.middleware/wrap-format % muuntaja)}))})
+                (merge
+                  (swagger-data parameters muuntaja)
+                  {:wrap #(muuntaja.middleware/wrap-format % muuntaja)})))})
 
 (def format-negotiate-middleware
   "Middleware for content-negotiation.
@@ -54,15 +66,19 @@
   Decodes the request body into `:body-params` using the `:muuntaja/request` key in request
   if the `:body-params` doesn't already exist.
 
+  Swagger-data will be omitted when `:form`, but no `:body`, parameters are defined.
+
   | key          | description |
   | -------------|-------------|
   | `:muuntaja`  | `muuntaja.core/Muuntaja` instance, does not mount if not set."
   {:name ::format-request
    :spec ::spec
-   :compile (fn [{:keys [muuntaja]} _]
+   :compile (fn [{:keys [muuntaja parameters]} _]
               (if muuntaja
-                {:data {:swagger {:consumes (displace (m/decodes muuntaja))}}
-                 :wrap #(muuntaja.middleware/wrap-format-request % muuntaja)}))})
+                (merge
+                  (when (publish-swagger-data? parameters)
+                    {:data {:swagger {:consumes (displace (m/decodes muuntaja))}}})
+                  {:wrap #(muuntaja.middleware/wrap-format-request % muuntaja)})))})
 
 (def format-response-middleware
   "Middleware for response formatting.
@@ -70,12 +86,16 @@
   Encodes the response body using the `:muuntaja/response` key in request if the response
   doesn't have `Content-Type` header already set.
 
+  Swagger-data will be omitted when `:form`, but no `:body`, parameters are defined.
+
   | key          | description |
   | -------------|-------------|
   | `:muuntaja`  | `muuntaja.core/Muuntaja` instance, does not mount if not set."
   {:name ::format-response
    :spec ::spec
-   :compile (fn [{:keys [muuntaja]} _]
+   :compile (fn [{:keys [muuntaja parameters]} _]
               (if muuntaja
-                {:data {:swagger {:produces (displace (m/encodes muuntaja))}}
-                 :wrap #(muuntaja.middleware/wrap-format-response % muuntaja)}))})
+                (merge
+                  (when (publish-swagger-data? parameters)
+                    {:data {:swagger {:produces (displace (m/encodes muuntaja))}}})
+                  {:wrap #(muuntaja.middleware/wrap-format-response % muuntaja)})))})
diff --git a/modules/reitit-middleware/src/reitit/ring/middleware/parameters.clj b/modules/reitit-middleware/src/reitit/ring/middleware/parameters.clj
index 20eef688..ec0a334b 100644
--- a/modules/reitit-middleware/src/reitit/ring/middleware/parameters.clj
+++ b/modules/reitit-middleware/src/reitit/ring/middleware/parameters.clj
@@ -10,4 +10,8 @@
   :form-params  - a map of parameters from the body
   :params       - a merged map of all types of parameter"
   {:name ::parameters
+   :compile (fn [{:keys [parameters]} _]
+              (if (and (some? (:form parameters)) (nil? (:body parameters)))
+                {:data {:swagger {:consumes ["application/x-www-form-urlencoded"]}}}
+                {}))
    :wrap params/wrap-params})
diff --git a/project.clj b/project.clj
index 3da01b8d..25cb4860 100644
--- a/project.clj
+++ b/project.clj
@@ -33,18 +33,18 @@
                          [metosin/muuntaja "0.6.7"]
                          [metosin/jsonista "0.2.7"]
                          [metosin/sieppari "0.0.0-alpha13"]
-                         [metosin/malli "0.0.1-20200924.063109-27"]
+                         [metosin/malli "0.1.0"]
 
                          ;; https://clojureverse.org/t/depending-on-the-right-versions-of-jackson-libraries/5111
-                         [com.fasterxml.jackson.core/jackson-core "2.11.2"]
-                         [com.fasterxml.jackson.core/jackson-databind "2.11.2"]
+                         [com.fasterxml.jackson.core/jackson-core "2.11.3"]
+                         [com.fasterxml.jackson.core/jackson-databind "2.11.3"]
 
                          [meta-merge "1.0.0"]
                          [fipp "0.6.23" :exclusions [org.clojure/core.rrb-vector]]
-                         [expound "0.8.5"]
+                         [expound "0.8.6"]
                          [lambdaisland/deep-diff "0.0-47"]
                          [com.bhauman/spell-spec "0.1.2"]
-                         [ring/ring-core "1.8.1"]
+                         [ring/ring-core "1.8.2"]
 
                          [io.pedestal/pedestal.service "0.5.8"]]
 
@@ -84,18 +84,18 @@
                                   [metosin/schema-tools "0.12.2"]
                                   [metosin/spec-tools "0.10.4"]
                                   [metosin/muuntaja "0.6.7"]
-                                  [metosin/sieppari]
+                                  [metosin/sieppari "0.0.0-alpha13"]
                                   [metosin/jsonista "0.2.7"]
-                                  [metosin/malli]
+                                  [metosin/malli "0.1.0"]
                                   [lambdaisland/deep-diff "0.0-47"]
                                   [meta-merge "1.0.0"]
                                   [com.bhauman/spell-spec "0.1.2"]
-                                  [expound "0.8.5"]
+                                  [expound "0.8.6"]
                                   [fipp "0.6.23"]
 
                                   [orchestra "2020.09.18-1"]
 
-                                  [ring "1.8.1"]
+                                  [ring "1.8.2"]
                                   [ikitommi/immutant-web "3.0.0-alpha1"]
                                   [metosin/ring-http-response "0.9.1"]
                                   [metosin/ring-swagger-ui "3.25.3"]
@@ -109,7 +109,7 @@
 
                                   [org.clojure/core.async "1.3.610"]
                                   [manifold "0.1.8"]
-                                  [funcool/promesa "5.1.0"]
+                                  [funcool/promesa "6.0.0"]
 
                                   [com.clojure-goes-fast/clj-async-profiler "0.4.1"]
                                   [ring-cors "0.1.13"]
@@ -128,7 +128,7 @@
                                    [calfpath "0.7.2"]
                                    [org.clojure/core.async "1.3.610"]
                                    [manifold "0.1.8"]
-                                   [funcool/promesa "5.1.0"]
+                                   [funcool/promesa "6.0.0"]
                                    [metosin/sieppari]
                                    [yada "1.2.16"]
                                    [aleph "0.4.6"]
diff --git a/test/clj/reitit/http/interceptors/muuntaja_test.clj b/test/clj/reitit/http/interceptors/muuntaja_test.clj
index 22c402df..b7c086de 100644
--- a/test/clj/reitit/http/interceptors/muuntaja_test.clj
+++ b/test/clj/reitit/http/interceptors/muuntaja_test.clj
@@ -36,20 +36,25 @@
                  ["/just-edn"
                   {:muuntaja just-edn
                    :get identity}]
+                 ["/form-params"
+                  {:post {:parameters {:form {:x string?}}
+                          :handler identity}}]
                  ["/swagger.json"
                   {:get {:no-doc true
                          :handler (swagger/create-swagger-handler)}}]]
                 {:data {:muuntaja m/instance
                         :interceptors [(muuntaja/format-interceptor)]}})
               {:executor sieppari/executor})
-        spec (fn [path]
+        spec (fn [method path]
                (let [path (keyword path)]
                  (-> {:request-method :get :uri "/swagger.json"}
                      (app) :body
                      (->> (m/decode m/instance "application/json"))
-                     :paths path :get)))
-        produces (comp set :produces spec)
-        consumes (comp set :consumes spec)]
+                     :paths path method)))
+        produces (comp set :produces (partial spec :get))
+        consumes (comp set :consumes (partial spec :get))
+        post-produces (comp set :produces (partial spec :post))
+        post-consumes (comp set :consumes (partial spec :post))]
 
     (testing "with defaults"
       (let [path "/defaults"]
@@ -85,7 +90,12 @@
       (let [path "/just-edn"]
         (is (= #{"application/edn"}
                (produces path)
-               (consumes path)))))))
+               (consumes path)))))
+    (testing "form parameters swagger-data"
+      (let [path "/form-params"]
+        (is (= #{}
+               (post-produces path)
+               (post-consumes path)))))))
 
 (deftest muuntaja-swagger-parts-test
   (let [app (http/ring-handler
@@ -103,17 +113,35 @@
                                   (muuntaja/format-response-interceptor)
                                   (muuntaja/format-request-interceptor)]
                    :get identity}]
+                 ["/form-request"
+                  {:interceptors [(muuntaja/format-negotiate-interceptor)
+                                (muuntaja/format-request-interceptor)]
+                   :post {:parameters {:form {:x string?}}
+                          :handler identity}}]
+                 ["/form-response"
+                  {:interceptors [(muuntaja/format-negotiate-interceptor)
+                                (muuntaja/format-response-interceptor)]
+                   :post {:parameters {:form {:x string?}}
+                          :handler identity}}]
+                 ["/form-with-both"
+                  {:interceptors [(muuntaja/format-negotiate-interceptor)
+                                (muuntaja/format-response-interceptor)
+                                (muuntaja/format-request-interceptor)]
+                   :post {:parameters {:form {:x string?}}
+                          :handler identity}}]
 
                  ["/swagger.json"
                   {:get {:no-doc true
                          :handler (swagger/create-swagger-handler)}}]]
                 {:data {:muuntaja m/instance}})
               {:executor sieppari/executor})
-        spec (fn [path]
+        spec (fn [method path]
                (-> {:request-method :get :uri "/swagger.json"}
-                   (app) :body :paths (get path) :get))
-        produces (comp :produces spec)
-        consumes (comp :consumes spec)]
+                   (app) :body :paths (get path) method))
+        produces (comp :produces (partial spec :get))
+        consumes (comp :consumes (partial spec :get))
+        post-produces (comp :produces (partial spec :post))
+        post-consumes (comp :consumes (partial spec :post))]
 
     (testing "just request formatting"
       (let [path "/request"]
@@ -133,7 +161,7 @@
                (produces path)))
         (is (nil? (consumes path)))))
 
-    (testing "just response formatting"
+    (testing "request and response formatting"
       (let [path "/both"]
         (is (= #{"application/json"
                  "application/transit+msgpack"
@@ -144,4 +172,16 @@
                  "application/transit+msgpack"
                  "application/transit+json"
                  "application/edn"}
-               (consumes path)))))))
+               (consumes path)))))
+    (testing "just request formatting for form params"
+      (let [path "/form-request"]
+        (is (nil? (post-produces path)))
+        (is (nil? (post-consumes path)))))
+    (testing "just response formatting for form params"
+      (let [path "/form-response"]
+        (is (nil? (post-produces path)))
+        (is (nil? (post-consumes path)))))
+    (testing "just request formatting for form params"
+      (let [path "/form-with-both"]
+        (is (nil? (post-produces path)))
+        (is (nil? (post-consumes path)))))))
diff --git a/test/clj/reitit/http/interceptors/parameters_test.clj b/test/clj/reitit/http/interceptors/parameters_test.clj
index 6618a762..bb326782 100644
--- a/test/clj/reitit/http/interceptors/parameters_test.clj
+++ b/test/clj/reitit/http/interceptors/parameters_test.clj
@@ -2,7 +2,8 @@
   (:require [clojure.test :refer [deftest testing is]]
             [reitit.http.interceptors.parameters :as parameters]
             [reitit.http :as http]
-            [reitit.interceptor.sieppari :as sieppari]))
+            [reitit.interceptor.sieppari :as sieppari]
+            [reitit.swagger :as swagger]))
 
 (deftest parameters-test
   (let [app (http/ring-handler
@@ -15,3 +16,23 @@
            (app {:request-method :get
                  :uri "/ping"
                  :query-string "kikka=kukka"})))))
+
+(deftest parameters-swagger-test
+  (let [app (http/ring-handler
+              (http/router
+                [["/form-params" {:post {:parameters {:form {:x string?}}
+                                         :handler identity}}]
+                 ["/body-params" {:post {:parameters {:body {:x string?}}
+                                        :handler identity}}]
+                 ["/swagger.json" {:get {:no-doc true
+                                        :handler (swagger/create-swagger-handler)}}]]
+                {:data {:interceptors [(parameters/parameters-interceptor)]}})
+             　{:executor sieppari/executor})
+        spec (fn [path]
+               (-> {:request-method :get :uri "/swagger.json"}
+                   app
+                   (get-in [:body :paths path :post])))]
+    (testing "with form parameters"
+      (is (= ["application/x-www-form-urlencoded"] (:consumes (spec "/form-params")))))
+    (testing "with body parameters"
+      (is (= nil (:consumes (spec "/body-params")))))))
diff --git a/test/clj/reitit/ring/middleware/muuntaja_test.clj b/test/clj/reitit/ring/middleware/muuntaja_test.clj
index f3d7fa31..0cd5beed 100644
--- a/test/clj/reitit/ring/middleware/muuntaja_test.clj
+++ b/test/clj/reitit/ring/middleware/muuntaja_test.clj
@@ -34,19 +34,24 @@
                  ["/just-edn"
                   {:muuntaja just-edn
                    :get identity}]
+                 ["/form-params"
+                  {:post {:parameters {:form {:x string?}}
+                          :handler identity}}]
                  ["/swagger.json"
                   {:get {:no-doc true
                          :handler (swagger/create-swagger-handler)}}]]
                 {:data {:muuntaja m/instance
                         :middleware [muuntaja/format-middleware]}}))
-        spec (fn [path]
+        spec (fn [method path]
                (let [path (keyword path)]
                  (-> {:request-method :get :uri "/swagger.json"}
                      (app) :body
                      (->> (m/decode m/instance "application/json"))
-                     :paths path :get)))
-        produces (comp set :produces spec)
-        consumes (comp set :consumes spec)]
+                     :paths path method)))
+        produces (comp set :produces (partial spec :get))
+        consumes (comp set :consumes (partial spec :get))
+        post-produces (comp set :produces (partial spec :post))
+        post-consumes (comp set :consumes (partial spec :post))]
 
     (testing "with defaults"
       (let [path "/defaults"]
@@ -82,7 +87,12 @@
       (let [path "/just-edn"]
         (is (= #{"application/edn"}
                (produces path)
-               (consumes path)))))))
+               (consumes path)))))
+    (testing "form parameters swagger-data"
+      (let [path "/form-params"]
+        (is (= #{}
+               (post-produces path)
+               (post-consumes path)))))))
 
 (deftest muuntaja-swagger-parts-test
   (let [app (ring/ring-handler
@@ -100,16 +110,34 @@
                                 muuntaja/format-response-middleware
                                 muuntaja/format-request-middleware]
                    :get identity}]
+                 ["/form-request"
+                  {:middleware [muuntaja/format-negotiate-middleware
+                                muuntaja/format-request-middleware]
+                   :post {:parameters {:form {:x string?}}
+                          :handler identity}}]
+                 ["/form-response"
+                  {:middleware [muuntaja/format-negotiate-middleware
+                                muuntaja/format-response-middleware]
+                   :post {:parameters {:form {:x string?}}
+                          :handler identity}}]
+                 ["/form-with-both"
+                  {:middleware [muuntaja/format-negotiate-middleware
+                                muuntaja/format-response-middleware
+                                muuntaja/format-request-middleware]
+                   :post {:parameters {:form {:x string?}}
+                          :handler identity}}]
 
                  ["/swagger.json"
                   {:get {:no-doc true
                          :handler (swagger/create-swagger-handler)}}]]
                 {:data {:muuntaja m/instance}}))
-        spec (fn [path]
+        spec (fn [method path]
                (-> {:request-method :get :uri "/swagger.json"}
-                   (app) :body :paths (get path) :get))
-        produces (comp :produces spec)
-        consumes (comp :consumes spec)]
+                   (app) :body :paths (get path) method))
+        produces (comp :produces (partial spec :get))
+        consumes (comp :consumes (partial spec :get))
+        post-produces (comp :produces (partial spec :post))
+        post-consumes (comp :consumes (partial spec :post))]
 
     (testing "just request formatting"
       (let [path "/request"]
@@ -129,7 +157,7 @@
                (produces path)))
         (is (nil? (consumes path)))))
 
-    (testing "just response formatting"
+    (testing "request and response formatting"
       (let [path "/both"]
         (is (= #{"application/json"
                  "application/transit+msgpack"
@@ -140,4 +168,16 @@
                  "application/transit+msgpack"
                  "application/transit+json"
                  "application/edn"}
-               (consumes path)))))))
+               (consumes path)))))
+    (testing "just request formatting for form params"
+      (let [path "/form-request"]
+        (is (nil? (post-produces path)))
+        (is (nil? (post-consumes path)))))
+    (testing "just response formatting for form params"
+      (let [path "/form-response"]
+        (is (nil? (post-produces path)))
+        (is (nil? (post-consumes path)))))
+    (testing "just request formatting for form params"
+      (let [path "/form-with-both"]
+        (is (nil? (post-produces path)))
+        (is (nil? (post-consumes path)))))))
diff --git a/test/clj/reitit/ring/middleware/parameters_test.clj b/test/clj/reitit/ring/middleware/parameters_test.clj
index e9658a1f..06d297ad 100644
--- a/test/clj/reitit/ring/middleware/parameters_test.clj
+++ b/test/clj/reitit/ring/middleware/parameters_test.clj
@@ -1,7 +1,8 @@
 (ns reitit.ring.middleware.parameters-test
   (:require [clojure.test :refer [deftest testing is]]
             [reitit.ring.middleware.parameters :as parameters]
-            [reitit.ring :as ring]))
+            [reitit.ring :as ring]
+            [reitit.swagger :as swagger]))
 
 (deftest parameters-test
   (let [app (ring/ring-handler
@@ -13,3 +14,22 @@
            (app {:request-method :get
                  :uri "/ping"
                  :query-string "kikka=kukka"})))))
+
+(deftest parameters-swagger-test
+  (let [app (ring/ring-handler
+              (ring/router
+                [["/form-params" {:post {:parameters {:form {:x string?}}
+                                         :handler identity}}]
+                 ["/body-params" {:post {:parameters {:body {:x string?}}
+                                        :handler identity}}]
+                 ["/swagger.json" {:get {:no-doc true
+                                        :handler (swagger/create-swagger-handler)}}]]
+                {:data {:middleware [parameters/parameters-middleware]}}))
+        spec (fn [path]
+               (-> {:request-method :get :uri "/swagger.json"}
+                   app
+                   (get-in [:body :paths path :post])))]
+    (testing "with form parameters"
+      (is (= ["application/x-www-form-urlencoded"] (:consumes (spec "/form-params")))))
+    (testing "with body parameters"
+      (is (= nil (:consumes (spec "/body-params")))))))