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lesvlesv
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Merge pull request #102 from GoogleCloudPlatform/ae-mailgun
Add appengine mailgun sample
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‎appengine/.gitignore

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# Copyright 2015 Google Inc. All Rights Reserved.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Google App Engine generated folder
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appengine-generated/
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# Java
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*.class
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# Mobile Tools for Java (J2ME)
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.mtj.tmp/
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# Package Files #
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*.jar
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*.war
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*.ear
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# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
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hs_err_pid*
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# maven
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target/
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pom.xml.tag
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pom.xml.releaseBackup
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pom.xml.versionsBackup
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pom.xml.next
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release.properties
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dependency-reduced-pom.xml
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buildNumber.properties
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service-account.json
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#eclipse
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.classpath
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.settings
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.project

‎appengine/mailgun/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Copyright 2015 Google Inc. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<packaging>war</packaging>
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<version>1.0-SNAPSHOT</version>
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<groupId>com.example.appengine</groupId>
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<artifactId>appengine-mailgun</artifactId>
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<parent>
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<groupId>com.google.cloud</groupId>
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<artifactId>doc-samples</artifactId>
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<version>1.0.0</version>
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<relativePath>../..</relativePath>
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</parent>
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<dependencies>
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<dependency>
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<groupId>javax.servlet</groupId>
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<artifactId>javax.servlet-api</artifactId>
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<version>3.1.0</version>
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<type>jar</type>
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<scope>provided</scope>
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</dependency>
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<!-- [START dependencies] -->
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<dependency>
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<groupId>com.sun.jersey</groupId>
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<artifactId>jersey-core</artifactId>
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<version>1.19</version>
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</dependency>
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<dependency>
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<groupId>com.sun.jersey</groupId>
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<artifactId>jersey-client</artifactId>
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<version>1.19</version>
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</dependency>
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<dependency>
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<groupId>com.sun.jersey.contribs</groupId>
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<artifactId>jersey-multipart</artifactId>
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<version>1.19</version>
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</dependency>
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<!-- [END dependencies] -->
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</dependencies>
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<build>
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<!-- for hot reload of the web application -->
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<outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<version>3.3</version>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>1.7</source>
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<target>1.7</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>com.google.appengine</groupId>
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<artifactId>appengine-maven-plugin</artifactId>
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<version>1.9.31</version>
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</plugin>
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</plugins>
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</build>
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</project>

‎appengine/mailgun/src/main/java/com/example/appengine/mailgun/MailgunServlet.java

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/**
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* Copyright 2015 Google Inc. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.appengine.mailgun;
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import com.sun.jersey.api.client.Client;
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import com.sun.jersey.api.client.ClientResponse;
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import com.sun.jersey.api.client.WebResource;
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import com.sun.jersey.api.client.filter.HTTPBasicAuthFilter;
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import com.sun.jersey.core.util.MultivaluedMapImpl;
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import com.sun.jersey.multipart.FormDataMultiPart;
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import com.sun.jersey.multipart.file.FileDataBodyPart;
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import java.io.File;
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import java.io.IOException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.ws.rs.core.MediaType;
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// [START example]
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@SuppressWarnings("serial")
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@WebServlet(name = "mailgun", value = "/send/email")
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public class MailgunServlet extends HttpServlet {
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private static final String MAILGUN_DOMAIN_NAME = System.getenv("MAILGUN_DOMAIN_NAME");
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private static final String MAILGUN_API_KEY = System.getenv("MAILGUN_API_KEY");
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@Override
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public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
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String type = req.getParameter("submit");
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String recipient = req.getParameter("to");
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ClientResponse clientResponse;
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if (type.equals("Send simple email")) {
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clientResponse = sendSimpleMessage(recipient);
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} else {
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clientResponse = sendComplexMessage(recipient);
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}
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if (clientResponse.getStatus() == 200) {
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resp.getWriter().print("Email sent.");
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}
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}
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// [START simple]
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private ClientResponse sendSimpleMessage(String recipient) {
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Client client = Client.create();
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client.addFilter(new HTTPBasicAuthFilter("api", MAILGUN_API_KEY));
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WebResource webResource = client.resource("https://api.mailgun.net/v3/" + MAILGUN_DOMAIN_NAME
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+ "/messages");
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MultivaluedMapImpl formData = new MultivaluedMapImpl();
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formData.add("from", "Mailgun User <mailgun@" + MAILGUN_DOMAIN_NAME + ">");
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formData.add("to", recipient);
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formData.add("subject", "Simple Mailgun Example");
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formData.add("text", "Plaintext content");
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return webResource.type(MediaType.APPLICATION_FORM_URLENCODED).post(ClientResponse.class,
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formData);
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}
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// [END simple]
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// [START complex]
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private ClientResponse sendComplexMessage(String recipient) {
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Client client = Client.create();
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client.addFilter(new HTTPBasicAuthFilter("api", MAILGUN_API_KEY));
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WebResource webResource = client.resource("https://api.mailgun.net/v3/" + MAILGUN_DOMAIN_NAME
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+ "/messages");
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FormDataMultiPart formData = new FormDataMultiPart();
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formData.field("from", "Mailgun User <mailgun@" + MAILGUN_DOMAIN_NAME + ">");
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formData.field("to", recipient);
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formData.field("subject", "Complex Mailgun Example");
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formData.field("html", "<html>HTML <strong>content</strong></html>");
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ClassLoader classLoader = getClass().getClassLoader();
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File txtFile = new File(classLoader.getResource("example-attachment.txt").getFile());
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formData.bodyPart(new FileDataBodyPart("attachment", txtFile, MediaType.TEXT_PLAIN_TYPE));
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return webResource.type(MediaType.MULTIPART_FORM_DATA_TYPE)
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.post(ClientResponse.class, formData);
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}
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// [END complex]
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}
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// [END example]

‎appengine/mailgun/src/main/webapp/WEB-INF/appengine-web.xml

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<?xml version="1.0" encoding="utf-8"?>
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<!-- [START_EXCLUDE] -->
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<!--
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Copyright 2015 Google Inc. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<!-- [END_EXCLUDE] -->
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<appengine-web-app xmlns="http://appengine.google.com/ns/1.0">
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<application>YOUR-PROJECT-ID</application>
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<version>YOUR-VERSION-ID</version>
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<threadsafe>true</threadsafe>
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<env-variables>
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<env-var name="MAILGUN_DOMAIN_NAME" value="YOUR-MAILGUN-DOMAIN-NAME" />
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<env-var name="MAILGUN_API_KEY" value="YOUR-MAILGUN-API-KEY" />
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</env-variables>
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</appengine-web-app>
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‎appengine/mailgun/src/main/webapp/WEB-INF/web.xml

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<?xml version="1.0" encoding="utf-8"?>
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<!-- [START_EXCLUDE] -->
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<!--
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Copyright 2015 Google Inc. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<!-- [END_EXCLUDE] -->
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<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"
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xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
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xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
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version="2.5">
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<servlet>
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<servlet-name>mailgun</servlet-name>
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<servlet-class>com.example.appengine.mailgun.MailgunServlet</servlet-class>
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</servlet>
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<servlet-mapping>
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<servlet-name>mailgun</servlet-name>
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<url-pattern>/send/email</url-pattern>
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</servlet-mapping>
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</web-app>
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‎appengine/mailgun/src/main/webapp/index.html

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<!doctype html>
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<!--
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Copyright 2015 Google Inc. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<html>
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<head>
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<title>Mailgun on Google App Engine Managed VMs</title>
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</head>
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<body>
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<!-- [START form] -->
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<form method="post" action="/send/email">
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<input type="text" name="to" placeholder="Enter recipient email">
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<input type="submit" name="submit" value="Send simple email">
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<input type="submit" name="submit" value="Send complex email">
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</form>
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<!-- [END form] -->
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</body>
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</html>

‎pom.xml

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<modules>
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<module>appengine/appidentity</module>
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<module>appengine/helloworld</module>
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<module>appengine/mailgun</module>
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<module>bigquery</module>
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<module>datastore</module>
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<module>logging</module>

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