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Azure Cosmos DB is a globally distributed multi-model database.
azure-cosmos-db-graph-java-getting-started

Developing a Java app using Azure Cosmos DB

Azure Cosmos DB is a globally distributed multi-model database. One of the supported APIs is the Graph (Gremlin) API, which provides a graph data model with Gremlin query/traversals. This sample shows you how to use the Azure Cosmos DB with the Graph API to store and access data from a Java application.

Running this sample

  • Before you can run this sample, you must have the following prerequisites:

    • An active Azure account. If you don't have one, you can sign up for a free account. Alternatively, you can use the Azure Cosmos DB Emulator for this tutorial.
    • JDK 1.7+ (Run apt-get install default-jdk if you don't have JDK)
    • Maven (Run apt-get install maven if you don't have Maven)

  • Then, clone this repository using git clone https://github.com/Azure-Samples/azure-cosmos-db-graph-java-getting-started.git

  • Next, substitute the endpoint and authorization key in the remote.yaml with your Cosmos DB account's values.

Setting Suggested Value Description
hosts [***.gremlin.cosmosdb.azure.com] This is the Gremlin URI value on the Overview page of the Azure portal, in square brackets, with the trailing :443/ removed. This value can also be retrieved from the Keys tab, using the URI value by removing https://, changing documents to graphs, and removing the trailing :443/.
port 443 Set the port to 443
username /dbs/<db>/colls/<coll> The resource of the form /dbs/<db>/colls/<coll> where <db> is your database name and <coll> is your collection name.
password Your primary key This is your primary key, which you can retrieve from the Keys page of the Azure portal, in the Primary Key box. Use the copy button on the left side of the box to copy the value.
connectionPool {enableSsl: true} Your connection pool setting for SSL.
serializer { className: org.apache.tinkerpop.gremlin. driver.ser.GraphSONMessageSerializerV1d0, config: { serializeResultToString: true }} Set to this value and delete any \n line breaks and spaces when pasting in the value.

  • From a command prompt or shell, run mvn package to compile and resolve dependencies.

  • From a command prompt or shell, run mvn exec:java -D exec.mainClass=GetStarted.Program to run the application.

About the code

The code included in this sample is intended to get you quickly started with a Java application that connects to Azure Cosmos DB with the Graph (Gremlin) API.

More information