Support of Azure Cosmos DB for Node.js

CAST supports Azure Cosmos DB via its com.castsoftware.nodejs extension. Details about how this support is provided for Node.js source code is discussed below.

Objects

Icon	Description
	NodeJS CosmosDB Database
	NodeJS CosmosDB Collection
	NodeJS CosmosDB Unknown Database
	NodeJS CosmosDB Unknown Collection

Supported libraries

Library	require	Versions
Azure Cosmos DB	@azure/cosmos	3.x to 4.x

Links

Link Type	Supported APIs from Container	Supported APIs from Item	Supported APIs from Items
useSelectLink		read query	batch bulk query readAll
useInsertLink			batch bulk create
useUpdateLink		replace	batch bulk upsert
useDeleteLink	delete	delete	batch bulk

Whenever a container client use one of the method listed in the following table, a link is created to the corresponding collection.

If the evaluation of the container name fails (either due to missing information in the source code or to limitations in the evaluation) a link is created to an Unknown collection.

What results can you expect?

When analyzing the following source code:

const CosmosClient = require("@azure/cosmos");
const client = new CosmosClient({ endpoint: endpoint, auth: { masterKey } });
const databaseId = 'My database'
const collectionId = 'My collection'

// CREATE DATABASE
const dbResponse = client.databases.createIfNotExists({
  id: databaseId
});
database = dbResponse.database;

// CREATE COLLECTION
const coResponse = database.containers.createIfNotExists({
  id: collectionId
});
container = coResponse.container;

// QUERY
var param = {
    query: "SELECT * FROM root r WHERE r.completed=@completed",
    parameters: [
        {
            name: '@completed',
            value: false
        }
    ]
};

const { result: results } = container.items
    .query(param)
    .toArray();

client.database(databaseId).delete()

you will get the following result:

Known Limitations

The link type for bulk and batch methods is not evaluated. All possible link types are created.