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* Add remote api sample * Allow users to input server name from command line for remote sample
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# Google App Engine Standard Environment Remote API Sample | ||
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This sample demonstrates how to access App Engine Standard Environment APIs remotely, | ||
using the [Remote API](https://cloud.google.com/appengine/docs/java/tools/remoteapi). | ||
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## Set up the server component of Remote API | ||
1. Navigate to the remote-server directory | ||
1. Update the `<application>` tag in `src/main/webapp/WEB-INF/appengine-web.xml` | ||
with your project name. | ||
1. Update the `<version>` tag in `src/main/webapp/WEB-INF/appengine-web.xml` | ||
with your version name. | ||
1. Deploy the app | ||
`mvn appengine:update` | ||
1. Alternatively, run the app locally with | ||
`mvn appengine:devserver` | ||
## Set up the client component of Remote API | ||
1. Package the app as a jar | ||
`mvn clean package` | ||
1. Navigate to the target directory | ||
1. Excute the jar file with the server connection string as the first argument | ||
1. If you deployed the app, it should be "YOUR-APP-ID.appspot.com" | ||
1. If you are running on the development server, it should be "localhost" | ||
java -jar appengine-remote-client-1.0-SNAPSHOT-jar-with-dependencies.jar "YOUR-APP-NAME" | ||
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<!-- | ||
Copyright 2016 Google Inc. All Rights Reserved. | ||
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. | ||
--> | ||
<project> | ||
<modelVersion>4.0.0</modelVersion> | ||
<packaging>jar</packaging> | ||
<version>1.0-SNAPSHOT</version> | ||
<groupId>com.example.appengine</groupId> | ||
<artifactId>appengine-remote-client</artifactId> | ||
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<parent> | ||
<artifactId>doc-samples</artifactId> | ||
<groupId>com.google.cloud</groupId> | ||
<version>1.0.0</version> | ||
<relativePath>../../..</relativePath> | ||
</parent> | ||
<!-- Parent POM defines ${appengine.sdk.version} (updates frequently). --> | ||
<dependencies> | ||
<dependency> | ||
<groupId>com.google.appengine</groupId> | ||
<artifactId>appengine-remote-api</artifactId> | ||
<version>${appengine.sdk.version}</version> | ||
</dependency> | ||
<dependency> | ||
<groupId>com.google.appengine</groupId> | ||
<artifactId>appengine-api-1.0-sdk</artifactId> | ||
</dependency> | ||
</dependencies> | ||
<build> | ||
<!-- for hot reload of the web application --> | ||
<outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory> | ||
<plugins> | ||
<!-- Parent POM defines ${appengine.sdk.version} (updates frequently). --> | ||
<plugin> | ||
<artifactId>maven-assembly-plugin</artifactId> | ||
<executions> | ||
<execution> | ||
<phase>package</phase> | ||
<goals> | ||
<goal>single</goal> | ||
</goals> | ||
</execution> | ||
</executions> | ||
<configuration> | ||
<archive> | ||
<manifest> | ||
<mainClass>com.example.appengine.remote.RemoteApiExample</mainClass> | ||
</manifest> | ||
</archive> | ||
<descriptorRefs> | ||
<descriptorRef>jar-with-dependencies</descriptorRef> | ||
</descriptorRefs> | ||
</configuration> | ||
</plugin> | ||
</plugins> | ||
</build> | ||
</project> |
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...ine/remote/remote-client/src/main/java/com/example/appengine/remote/RemoteApiExample.java
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/** | ||
* Copyright 2016 Google Inc. All Rights Reserved. | ||
* | ||
* 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. | ||
*/ | ||
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package com.example.appengine.remote; | ||
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import com.google.appengine.api.datastore.DatastoreService; | ||
import com.google.appengine.api.datastore.DatastoreServiceFactory; | ||
import com.google.appengine.api.datastore.Entity; | ||
import com.google.appengine.tools.remoteapi.RemoteApiInstaller; | ||
import com.google.appengine.tools.remoteapi.RemoteApiOptions; | ||
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import java.io.IOException; | ||
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// [START example] | ||
public class RemoteApiExample { | ||
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public static void main(String[] args) throws IOException { | ||
String serverString = args[0]; | ||
RemoteApiOptions options; | ||
if (serverString.equals("localhost")) { | ||
options = new RemoteApiOptions().server(serverString, | ||
8080).useDevelopmentServerCredential(); | ||
} else { | ||
options = new RemoteApiOptions().server(serverString, | ||
443).useApplicationDefaultCredential(); | ||
} | ||
RemoteApiInstaller installer = new RemoteApiInstaller(); | ||
installer.install(options); | ||
try { | ||
DatastoreService ds = DatastoreServiceFactory.getDatastoreService(); | ||
System.out.println("Key of new entity is " + ds.put(new Entity("Hello Remote API!"))); | ||
} finally { | ||
installer.uninstall(); | ||
} | ||
} | ||
} | ||
//[END example] |
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<!-- | ||
Copyright 2016 Google Inc. All Rights Reserved. | ||
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. | ||
--> | ||
<project> | ||
<modelVersion>4.0.0</modelVersion> | ||
<packaging>war</packaging> | ||
<version>1.0-SNAPSHOT</version> | ||
<groupId>com.example.appengine</groupId> | ||
<artifactId>appengine-remote-server</artifactId> | ||
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<parent> | ||
<artifactId>doc-samples</artifactId> | ||
<groupId>com.google.cloud</groupId> | ||
<version>1.0.0</version> | ||
<relativePath>../../..</relativePath> | ||
</parent> | ||
<!-- Parent POM defines ${appengine.sdk.version} (updates frequently). --> | ||
<dependencies> | ||
<dependency> | ||
<groupId>com.google.appengine</groupId> | ||
<artifactId>appengine-api-1.0-sdk</artifactId> | ||
</dependency> | ||
<dependency> | ||
<groupId>org.apache.httpcomponents</groupId> | ||
<artifactId>httpclient</artifactId> | ||
<version>4.5.1</version> | ||
</dependency> | ||
<dependency> | ||
<groupId>javax.servlet</groupId> | ||
<artifactId>javax.servlet-api</artifactId> | ||
<version>3.1.0</version> | ||
<type>jar</type> | ||
<scope>provided</scope> | ||
</dependency> | ||
</dependencies> | ||
<build> | ||
<!-- for hot reload of the web application --> | ||
<outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory> | ||
<plugins> | ||
<!-- Parent POM defines ${appengine.sdk.version} (updates frequently). --> | ||
<plugin> | ||
<groupId>com.google.appengine</groupId> | ||
<artifactId>appengine-maven-plugin</artifactId> | ||
<version>${appengine.sdk.version}</version> | ||
</plugin> | ||
</plugins> | ||
</build> | ||
</project> |
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appengine/remote/remote-server/src/main/java/com/example/appengine/remote/RemoteServlet.java
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/** | ||
* Copyright 2016 Google Inc. All Rights Reserved. | ||
* | ||
* 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. | ||
*/ | ||
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package com.example.appengine.remote; | ||
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import java.io.IOException; | ||
import java.io.PrintWriter; | ||
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import javax.servlet.http.HttpServlet; | ||
import javax.servlet.http.HttpServletRequest; | ||
import javax.servlet.http.HttpServletResponse; | ||
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// [START example] | ||
@SuppressWarnings("serial") | ||
public class RemoteServlet extends HttpServlet { | ||
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@Override | ||
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException { | ||
PrintWriter out = resp.getWriter(); | ||
out.println("Hello, world"); | ||
} | ||
} | ||
// [END example] |
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appengine/remote/remote-server/src/main/webapp/WEB-INF/appengine-web.xml
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<?xml version="1.0" encoding="utf-8"?> | ||
<!-- [START_EXCLUDE] --> | ||
<!-- | ||
Copyright 2016 Google Inc. All Rights Reserved. | ||
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. | ||
--> | ||
<!-- [END_EXCLUDE] --> | ||
<appengine-web-app xmlns="http://appengine.google.com/ns/1.0"> | ||
<application>YOUR-PROJECT-ID</application> | ||
<version>YOUR-VERSION-ID</version> | ||
<threadsafe>true</threadsafe> | ||
</appengine-web-app> | ||
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appengine/remote/remote-server/src/main/webapp/WEB-INF/web.xml
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<?xml version="1.0" encoding="utf-8"?> | ||
<!-- [START_EXCLUDE] --> | ||
<!-- | ||
Copyright 2016 Google Inc. All Rights Reserved. | ||
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. | ||
--> | ||
<!-- [END_EXCLUDE] --> | ||
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" | ||
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" | ||
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" | ||
version="2.5"> | ||
<servlet> | ||
<display-name>Remote API Servlet</display-name> | ||
<servlet-name>RemoteApiServlet</servlet-name> | ||
<servlet-class>com.google.apphosting.utils.remoteapi.RemoteApiServlet</servlet-class> | ||
<load-on-startup>1</load-on-startup> | ||
</servlet> | ||
<servlet-mapping> | ||
<servlet-name>RemoteApiServlet</servlet-name> | ||
<url-pattern>/remote_api</url-pattern> | ||
</servlet-mapping> | ||
<servlet> | ||
<servlet-name>remote</servlet-name> | ||
<servlet-class>com.example.appengine.remote.RemoteServlet</servlet-class> | ||
</servlet> | ||
<servlet-mapping> | ||
<servlet-name>remote</servlet-name> | ||
<url-pattern>/</url-pattern> | ||
</servlet-mapping> | ||
</web-app> | ||
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