diff --git a/config/packages/process/demo.rest.invalid_input.yaml b/config/packages/process/demo.rest.invalid_input.yaml
new file mode 100644
index 0000000..1f7eae6
--- /dev/null
+++ b/config/packages/process/demo.rest.invalid_input.yaml
@@ -0,0 +1,25 @@
+clever_age_process:
+    configurations:
+        demo.rest.invalid_input:
+            description: >
+                RequestTask receiving a string input (cleverage/rest-process-bundle#38): the task only accepts an
+                array or empty input, it must fail with a clear message
+            help: >
+                Ex: bin/console cleverage:process:execute demo.rest.invalid_input
+            tasks:
+                input:
+                    service: '@CleverAge\ProcessBundle\Task\ConstantOutputTask'
+                    options:
+                        output: '/codes-postaux/communes/46800'
+                    outputs: [ request ]
+
+                request:
+                    service: '@CleverAge\RestProcessBundle\Task\RequestTask'
+                    options:
+                        client: apicarto_ign
+                        url: '/codes-postaux/communes/46800'
+                        method: 'GET'
+                    outputs: [ debug ]
+
+                debug:
+                    service: '@CleverAge\ProcessBundle\Task\Debug\DebugTask'
diff --git a/config/packages/process/demo.rest.log_response.yaml b/config/packages/process/demo.rest.log_response.yaml
new file mode 100644
index 0000000..3d6d9ea
--- /dev/null
+++ b/config/packages/process/demo.rest.log_response.yaml
@@ -0,0 +1,27 @@
+clever_age_process:
+    configurations:
+        demo.rest.log_response:
+            description: >
+                RequestTask with log_response and the url given by the input (cleverage/rest-process-bundle#37): run
+                with -vv, the "Response received" log must give the requested url and the response content
+            help: >
+                Ex: bin/console cleverage:process:execute demo.rest.log_response -vv
+            tasks:
+                input:
+                    service: '@CleverAge\ProcessBundle\Task\ConstantOutputTask'
+                    options:
+                        output:
+                            url: '/codes-postaux/communes/46800'
+                    outputs: [ request ]
+
+                request:
+                    service: '@CleverAge\RestProcessBundle\Task\RequestTask'
+                    options:
+                        client: apicarto_ign
+                        url: '/configured/url'
+                        method: 'GET'
+                        log_response: true
+                    outputs: [ debug ]
+
+                debug:
+                    service: '@CleverAge\ProcessBundle\Task\Debug\DebugTask'
diff --git a/config/packages/process/demo.rest.transport_error.yaml b/config/packages/process/demo.rest.transport_error.yaml
new file mode 100644
index 0000000..ea20afe
--- /dev/null
+++ b/config/packages/process/demo.rest.transport_error.yaml
@@ -0,0 +1,19 @@
+clever_age_process:
+    configurations:
+        demo.rest.transport_error:
+            description: >
+                RequestTask with a transport error (cleverage/rest-process-bundle#36): the error must be logged
+                ("REST request failed") and the transport exception thrown
+            help: >
+                Ex: bin/console cleverage:process:execute demo.rest.transport_error -v
+            tasks:
+                request:
+                    service: '@CleverAge\RestProcessBundle\Task\RequestTask'
+                    options:
+                        client: unreachable
+                        url: '/ping'
+                        method: 'GET'
+                    outputs: [ debug ]
+
+                debug:
+                    service: '@CleverAge\ProcessBundle\Task\Debug\DebugTask'
diff --git a/config/packages/process/demo.rest.url_parameter_int.yaml b/config/packages/process/demo.rest.url_parameter_int.yaml
new file mode 100644
index 0000000..9d69831
--- /dev/null
+++ b/config/packages/process/demo.rest.url_parameter_int.yaml
@@ -0,0 +1,20 @@
+clever_age_process:
+    configurations:
+        demo.rest.url_parameter_int:
+            description: >
+                RequestTask with an integer url parameter (cleverage/rest-process-bundle#38): the value must be
+                converted to a string
+            help: >
+                Ex: bin/console cleverage:process:execute demo.rest.url_parameter_int
+            tasks:
+                request:
+                    service: '@CleverAge\RestProcessBundle\Task\RequestTask'
+                    options:
+                        client: apicarto_ign
+                        url: '/codes-postaux/communes/{codePostal}'
+                        method: 'GET'
+                        url_parameters: { codePostal: 46800 }
+                    outputs: [ debug ]
+
+                debug:
+                    service: '@CleverAge\ProcessBundle\Task\Debug\DebugTask'
diff --git a/config/packages/process/demo.rest.valid_client_error.yaml b/config/packages/process/demo.rest.valid_client_error.yaml
new file mode 100644
index 0000000..72b149c
--- /dev/null
+++ b/config/packages/process/demo.rest.valid_client_error.yaml
@@ -0,0 +1,20 @@
+clever_age_process:
+    configurations:
+        demo.rest.valid_client_error:
+            description: >
+                RequestTask with a 4xx status code declared in valid_response_code (cleverage/rest-process-bundle#35):
+                the response body must be output (apicarto answers 400 to an invalid postal code)
+            help: >
+                Ex: bin/console cleverage:process:execute demo.rest.valid_client_error
+            tasks:
+                request:
+                    service: '@CleverAge\RestProcessBundle\Task\RequestTask'
+                    options:
+                        client: apicarto_ign
+                        url: '/codes-postaux/communes/invalid'
+                        method: 'GET'
+                        valid_response_code: [ 200, 400 ]
+                    outputs: [ debug ]
+
+                debug:
+                    service: '@CleverAge\ProcessBundle\Task\Debug\DebugTask'
diff --git a/config/services.yaml b/config/services.yaml
index b02eaf1..c74728e 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -71,6 +71,16 @@ services:
         tags:
             - { name: cleverage.rest.client }
 
+    # REST client on an unresolvable host (.invalid TLD): every request fails with a transport error.
+    # Used by demo.rest.transport_error (cleverage/rest-process-bundle#36).
+    app.cleverage_rest_process.client.unreachable:
+        class: CleverAge\RestProcessBundle\Client\Client
+        bind:
+            $code: 'unreachable'
+            $uri: 'https://unreachable.invalid/api'
+        tags:
+            - { name: cleverage.rest.client }
+
     # For cleverage/cache-process-bundle
     app.cleverage_cache_process.adapter.memory:
         class: App\Adapter\MemoryAdapter