docs(samples): add webhook samples (#479)

* docs:add configure webhook to set form parameter as optional or required sample and test Change-Id: I75bed489bd8abefca60263acb266501810c0e856 * docs: fix checkstyle Change-Id: I18be2a5c1d46ac9838cf4a15ab87dcf331ee26ee * fix checkstyle Change-Id: Ia85899f678ef1382718c2443a682770417340af2 * fix checkstyle Change-Id: I4dd56107a3197027f287980fa87a15e962154783 * fix multiline string Change-Id: I8dcdb0dcaad486a2fb69e0737df99bda49b28839 * fix checkstyle violations Change-Id: I5f4521b3e50660f30f9f73da3d939da213084d28 * fix checkstyle violations Change-Id: I39dedfba1b62be5cb4580a42dde270146f3b6f97 * remove unused variable Change-Id: Ic54ae0d1f091079661f3fa67097cdcd2e888dc90 * fix checkstyle violations Change-Id: Ifd303b7395844240dca0b29cde9b791112fcabe5 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * fix checkstyle violations Change-Id: I59e45da9f9e57b327a527f1405816ac1275fe1c8 * fix checkstyle violations Change-Id: I70ff4118cc8b3111a3ed55a2fae32258d3f6819c * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * remove unnecessary samples Change-Id: I395dd5abc9a48733126ab0ecdc2a974fbf9eb471 * add webhook configure session parameter sample and test Change-Id: Ia599ab7f4d432477d9952b4e12c709845f1ad97b * add webhook validate form parameter sample and test Change-Id: I8cdf93fd9e21161757d198b1338c5ab77bb3a236 * fix checkstyle violations Change-Id: I90f1f626588fd59c116d119348054c914945cd1d * fix checkstyle violations Change-Id: I5ff686ab2ffc94b358bdf87b8dfc3d00f5e45657 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * update to use gson Change-Id: I6f645ff225e42a3485773af1b63e7b3378f95bb2 * update to use gson Change-Id: I155a40ae8def8472b3e08551fc3dc112b06c68ec * update webhook-optional-or-required to use gson Change-Id: I6b4c19023982668c9c5d0c901bb72c41d3ca7457 * update test Change-Id: I43ce833251dadfbc9e6c3e652ff1f278a2f7c2f2 * update to use gson Change-Id: I509e163dcb69161ad8c18147bd2116b7014d4aef * fix checkstyle violations Change-Id: I2f882c298379630b71dbb533173ec3cc9ca4aee1 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * v3beta1 to v3 Change-Id: If9d465d862ca5c7ae7f5e1fb03a5b09c878997a8 * add flag to kokoro build script Change-Id: Ib5c9ccd81e1e6fabe1ed79fe6d3c96f455480c16 * remove flag Change-Id: Ie1fc788f64c6dc14763f0c2df3ac9327ee7a1044 * add flag to kokoro build script Change-Id: Ie7821b49ea0b954fdcf6ad7f0a5efd57c865c20c * remove flag Change-Id: I3ae6982f6a4f8dc3b2b4e5a404e5e46c8c8d6aaa * add kokoro flag Change-Id: Id7a7aae81cd43d920fa1fe750fb259b0d2ea0581 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * add kokoro flag Change-Id: I3a4733a05b86a135642c4667a52ab7b09f462559 * fix formatting Change-Id: I491c924ed2fc6dff078f1d7944a3590a24b7530f * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * remove extra gson Change-Id: I7f6b52e600a8b2513f59560fe3e727dd5d822319 * fix formatting Change-Id: Icb1ff15957d93fab961b49f05492282c4363fdcd * fix formatting Change-Id: Iabb1e248e03bd5300b9aad10e0504d8d96ea564b * fix formatting Change-Id: Icd6976bd8fc1795accfda722e00270aebf69fa43 * restructure json format Change-Id: I1e919a48b857e4bb4e33fb26265ec7320b1ece24 * restructure json format Change-Id: Ib36de1d54869dad920e1743834be56a84d8398ba * restructure json format Change-Id: I5c7be6894f91e26a8b59a46635a65953728ae591 * restructure mockito stubbing Change-Id: Id67943d85113ba436844fe5b6a39593a030a89cb * restructure mockito stubbing Change-Id: Ib1df6375ec71353f4ab62bf83c6ff7712da59acb * restructure mockito stubbing Change-Id: I3243a7b5b70010d9f181039983bdeb35098c72b2 * restructure mockito stubbing Change-Id: Idd80a7b9a29f0daaabc866b35b685efff1a80f94 * restructure mocks and variables Change-Id: I2faa86d33aaf5d0b8a9941779f2b17934e848c74 * restructure mocks and variables Change-Id: I9accbd7282c92b409c619e717cc05aa694d6e3e7 * restructure mocks and variables Change-Id: I03bdc68502f8deff333e68cd3fb36d080a9f44ca * fix variable names Change-Id: Ic196c389141e834c4d7cc54531de808b0c941801 * fix variable names Change-Id: I5d4ce6132bfdfb1d709e589eaff060520da8fcc0 * remove unnecessary mock Change-Id: Ibff1531d1a6e6de27fee6e409d005d657ad2c86d * remove static Change-Id: Ie67fd74d024957fc8584794f30ccc1f953fb39e4 * add annotations Change-Id: I727e43c0b98c4641414d950658e78c5c30b66506 * add annotations Change-Id: Ib594629756b704a701739188e2d59c0273d68a8f * add runwith import Change-Id: I32b0746e89b2131106ef965b1712981633b8488f * restructure test and mocks Change-Id: I5bdf09bd4c262c20ec84ad4255170b084c0caa69 * fix imports Change-Id: I48b1628e4f60372a767c354dcd78e9c1b3e0f415 * fix imports Change-Id: Icbc59fc1d313a7224c2d472b49ca144f217bbf77 * fix imports Change-Id: I2591dbdd32e3f97e7f61f38d88e222ed11418c25 * rename test files Change-Id: Ifcd47fd1d94f7064a0fa178a36fe3e803a8bb234 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * fix imports Change-Id: I65c7c53359c87b0c00afe02871f5405ce629d996 * add variable Change-Id: I140b08fdb80654140055e292057c0ddc74d23921 * remove json files and fix checkstyle Change-Id: Idf77efee6e42f430efab1c9aae662756d4feb92c * make public Change-Id: I6bfaf4c002f513b3e517394d745c1548f886de77 * remove print Change-Id: Iff827980844223c3323db37df587a075c1f226c5 * add flag to kokoro build script Change-Id: I7a2d667a3460a59963b592d1504d0a465cc03565 * add mock Change-Id: Iec351ef910c551a5a511454ad8edf3da6aec0734 * move mocks Change-Id: Ic1b22fd72c7e624bff8f19767ce5b15f44356e7d * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
googleapis · Jul 16, 2022 · c1443ae · c1443ae
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diff --git a/README.md b/README.md
@@ -79,6 +79,7 @@ Samples are in the [`samples/`](https://github.com/googleapis/java-dialogflow-cx
 
 | Sample                      | Source Code                       | Try it |
 | --------------------------- | --------------------------------- | ------ |
+| Configure Webhook To Set Form Parameters As Optional Or Required | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/ConfigureWebhookToSetFormParametersAsOptionalOrRequired.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/ConfigureWebhookToSetFormParametersAsOptionalOrRequired.java) |
 | Create Agent | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/CreateAgent.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/CreateAgent.java) |
 | Create Flow | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/CreateFlow.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/CreateFlow.java) |
 | Create Intent | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/CreateIntent.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/CreateIntent.java) |
@@ -99,6 +100,8 @@ Samples are in the [`samples/`](https://github.com/googleapis/java-dialogflow-cx
 | List Test Case Results | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/ListTestCaseResults.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/ListTestCaseResults.java) |
 | List Training Phrases | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/ListTrainingPhrases.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/ListTrainingPhrases.java) |
 | Update Intent | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/UpdateIntent.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/UpdateIntent.java) |
+| Webhook Configure Session Parameters | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/WebhookConfigureSessionParameters.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/WebhookConfigureSessionParameters.java) |
+| Webhook Validate Form Parameter | [source code](https://github.com/googleapis/java-dialogflow-cx/blob/main/samples/snippets/src/main/java/dialogflow/cx/WebhookValidateFormParameter.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-dialogflow-cx&page=editor&open_in_editor=samples/snippets/src/main/java/dialogflow/cx/WebhookValidateFormParameter.java) |
 
 
 

diff --git a/.../src/main/java/dialogflow/cx/ConfigureWebhookToSetFormParametersAsOptionalOrRequired.java b/.../src/main/java/dialogflow/cx/ConfigureWebhookToSetFormParametersAsOptionalOrRequired.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dialogflow.cx;
+
+// The following snippet is used in https://cloud.google.com/dialogflow/cx/docs/concept/webhook
+
+// [START dialogflow_cx_v3_configure_webhooks_to_set_form_parameter_as_optional_or_required]
+
+// TODO: Change class name to Example
+// TODO: Uncomment the line below before running cloud function
+// package com.example;
+
+import com.google.cloud.functions.HttpFunction;
+import com.google.cloud.functions.HttpRequest;
+import com.google.cloud.functions.HttpResponse;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import java.io.BufferedWriter;
+
+public class ConfigureWebhookToSetFormParametersAsOptionalOrRequired implements HttpFunction {
+  @Override
+  public void service(HttpRequest request, HttpResponse response) throws Exception {
+    JsonObject parameterObject = new JsonObject();
+    parameterObject.addProperty("display_name", "order_number");
+    parameterObject.addProperty("required", "true");
+    parameterObject.addProperty("state", "VALID");
+
+    JsonArray parameterInfoList = new JsonArray();
+    parameterInfoList.add(parameterObject);
+
+    JsonObject parameterInfoObject = new JsonObject();
+    parameterInfoObject.add("parameter_info", parameterInfoList);
+
+    JsonObject formInfo = new JsonObject();
+    formInfo.add("form_info", parameterInfoObject);
+
+    // Constructs the webhook response object
+    JsonObject webhookResponse = new JsonObject();
+    webhookResponse.add("page_info", formInfo);
+
+    Gson gson = new GsonBuilder().setPrettyPrinting().create();
+    String jsonResponseObject = gson.toJson(webhookResponse);
+
+    System.out.println("Response Object: \n");
+    System.out.println(jsonResponseObject.toString());
+
+    /* {
+     *   "page_info": {
+     *     "form_info": {
+     *       "parameter_info": [
+     *         {
+     *           "display_name": "order_number",
+     *           "required": "true",
+     *           "state": "VALID"
+     *         }
+     *       ]
+     *     }
+     *   }
+     * }
+     */
+
+    BufferedWriter writer = response.getWriter();
+
+    // Sends the responseObject
+    writer.write(jsonResponseObject.toString());
+  }
+}
+// [END dialogflow_cx_v3_configure_webhooks_to_set_form_parameter_as_optional_or_required]
diff --git a/samples/snippets/src/main/java/dialogflow/cx/WebhookConfigureSessionParameters.java b/samples/snippets/src/main/java/dialogflow/cx/WebhookConfigureSessionParameters.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dialogflow.cx;
+
+// The following snippet is used in https://cloud.google.com/dialogflow/cx/docs/concept/webhook
+// Configures a webhook to set a session parameter
+
+// [START dialogflow_cx_v3_webhook_configure_session_parameters]
+
+// TODO: Change class name to Example
+// TODO: Uncomment the line below before running cloud function
+// package com.example;
+
+import com.google.cloud.functions.HttpFunction;
+import com.google.cloud.functions.HttpRequest;
+import com.google.cloud.functions.HttpResponse;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonObject;
+import java.io.BufferedWriter;
+
+public class WebhookConfigureSessionParameters implements HttpFunction {
+  @Override
+  public void service(HttpRequest request, HttpResponse response) throws Exception {
+    JsonObject orderParameter = new JsonObject();
+    orderParameter.addProperty("order_number", "12345");
+
+    JsonObject parameterObject = new JsonObject();
+    parameterObject.add("parameters", orderParameter);
+
+    // Creates webhook response object
+    JsonObject webhookResponse = new JsonObject();
+    webhookResponse.add("session_info", parameterObject);
+
+    Gson gson = new GsonBuilder().setPrettyPrinting().create();
+    String jsonResponseObject = gson.toJson(webhookResponse);
+
+    System.out.println("Session Parameter Info: \n");
+    System.out.println(jsonResponseObject.toString());
+
+    /** { "session_info": { "parameters": { "order_number": "12345" } } } */
+    BufferedWriter writer = response.getWriter();
+    // Sends the webhookResponseObject
+    writer.write(jsonResponseObject.toString());
+  }
+}
+// [END dialogflow_cx_v3_webhook_configure_session_parameters]
diff --git a/samples/snippets/src/main/java/dialogflow/cx/WebhookValidateFormParameter.java b/samples/snippets/src/main/java/dialogflow/cx/WebhookValidateFormParameter.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dialogflow.cx;
+
+// The following snippet is used in https://cloud.google.com/dialogflow/cx/docs/concept/webhook
+
+// [START dialogflow_cx_v3_configure_webhooks_to_set_form_parameter_as_optional_or_required]
+
+// TODO: Change class name to Example
+// TODO: Uncomment the line below before running cloud function
+// package com.example;
+
+import com.google.cloud.functions.HttpFunction;
+import com.google.cloud.functions.HttpRequest;
+import com.google.cloud.functions.HttpResponse;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import java.io.BufferedWriter;
+
+public class WebhookValidateFormParameter implements HttpFunction {
+  @Override
+  public void service(HttpRequest request, HttpResponse response) throws Exception {
+    JsonObject sessionInfo = new JsonObject();
+    JsonObject sessionParameter = new JsonObject();
+
+    sessionParameter.addProperty("order_number", "null");
+    sessionInfo.add("parameters", sessionParameter);
+
+    JsonObject parameterObject = new JsonObject();
+    parameterObject.addProperty("display_name", "order_number");
+    parameterObject.addProperty("required", "true");
+    parameterObject.addProperty("state", "INVALID");
+    parameterObject.addProperty("value", "123");
+
+    JsonArray parameterInfoList = new JsonArray();
+    parameterInfoList.add(parameterObject);
+
+    JsonObject parameterInfoObject = new JsonObject();
+    parameterInfoObject.add("parameter_info", parameterInfoList);
+
+    JsonObject pageInfo = new JsonObject();
+    pageInfo.add("form_info", parameterInfoObject);
+
+    // Constructs the webhook response object
+    JsonObject webhookResponse = new JsonObject();
+    webhookResponse.add("page_info", pageInfo);
+    webhookResponse.add("session_info", sessionInfo);
+
+    Gson gson = new GsonBuilder().setPrettyPrinting().create();
+    String jsonResponseObject = gson.toJson(webhookResponse);
+
+    System.out.println("Response Object: \n");
+    System.out.println(jsonResponseObject.toString());
+    /**
+     * { "page_info": { "form_info": { "parameter_info": [ { "display_name": "order_number",
+     * "required": "true", "state": "INVALID", "value": "123" } ] } }, "session_info": {
+     * "parameters": { "order_number": "null" } } }
+     */
+    BufferedWriter writer = response.getWriter();
+
+    // Sends the responseObject
+    writer.write(jsonResponseObject.toString());
+  }
+}
+// [END dialogflow_cx_v3_configure_webhooks_to_set_form_parameter_as_optional_or_required]
diff --git a/...rc/test/java/dialogflow/cx/ConfigureWebhookToSetFormParametersAsOptionalOrRequiredIT.java b/...rc/test/java/dialogflow/cx/ConfigureWebhookToSetFormParametersAsOptionalOrRequiredIT.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package dialogflow.cx;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Mockito.when;
+
+import com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest;
+import com.google.cloud.dialogflow.cx.v3beta1.WebhookRequest.FulfillmentInfo;
+import com.google.cloud.functions.HttpRequest;
+import com.google.cloud.functions.HttpResponse;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.StringWriter;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+public class ConfigureWebhookToSetFormParametersAsOptionalOrRequiredIT {
+
+  @Mock HttpRequest request;
+  @Mock HttpResponse response;
+
+  BufferedReader jsonReader;
+  StringReader stringReader;
+  BufferedWriter writerOut;
+  StringWriter responseOut;
+
+  @Before
+  public void beforeTest() throws IOException {
+    MockitoAnnotations.initMocks(this);
+
+    stringReader = new StringReader("{'fulfillmentInfo': {'tag': 'validate-form-parameter'}}");
+    jsonReader = new BufferedReader(stringReader);
+
+    responseOut = new StringWriter();
+    writerOut = new BufferedWriter(responseOut);
+
+    when(request.getReader()).thenReturn(jsonReader);
+    when(response.getWriter()).thenReturn(writerOut);
+  }
+
+  @Test
+  public void helloHttp_bodyParamsPost() throws IOException, Exception {
+
+    FulfillmentInfo fulfillmentInfo =
+        FulfillmentInfo.newBuilder().setTag("configure-session-parameters").build();
+
+    WebhookRequest webhookRequest =
+        WebhookRequest.newBuilder().setFulfillmentInfo(fulfillmentInfo).build();
+
+    new ConfigureWebhookToSetFormParametersAsOptionalOrRequired().service(request, response);
+    writerOut.flush();
+
+    JsonObject parameterObject = new JsonObject();
+    parameterObject.addProperty("display_name", "order_number");
+    parameterObject.addProperty("required", "true");
+    parameterObject.addProperty("state", "VALID");
+
+    JsonArray parameterInfoList = new JsonArray();
+    parameterInfoList.add(parameterObject);
+
+    JsonObject parameterInfoObject = new JsonObject();
+    parameterInfoObject.add("parameter_info", parameterInfoList);
+
+    JsonObject formInfo = new JsonObject();
+    formInfo.add("form_info", parameterInfoObject);
+
+    JsonObject webhookResponse = new JsonObject();
+    webhookResponse.add("page_info", formInfo);
+
+    Gson gson = new GsonBuilder().setPrettyPrinting().create();
+    String expectedResponse = gson.toJson(webhookResponse);
+
+    assertThat(responseOut.toString()).isEqualTo(expectedResponse);
+  }
+}