Azure CosmosDB Data as REST API

Use-case

Using this sample, CRUD operations could be used to access the data stored in Azure CosmosDB via REST API.

Prerequisites

• Create a Microsoft Account with Azure Subscription
• Create an Azure Cosmos DB account
• Create a container and set partition key as id.
• Obtain tokens
  1. Go to your Azure Cosmos DB account and click Keys.
  2. Copy the URI and PRIMARY KEY in the Read-write Keys tab.

Configuration

Create a file called Config.toml at the root of the project.

Config.toml

[<ORG_NAME>.azure_cosmosdb_data_as_rest_api]
baseUrl = "<BASE_URL>"
containerId = "<CONTAINER_ID>"
databaseId = "<DATABASE_ID>"
primaryKeyOrResourceToken = "<TOKEN>"

Run the sample

Run the Ballerina project created by the service sample by executing bal run from the root.

Once successfully executed, listener will run on port 8090. Then you could invoke the service using the following curl commands.

• To insert an employee

$ curl -v -X POST http://localhost:8090/employees -d '{"empId": "1", firstName" : "Foo", "email": "[email protected]", "designation": "SE"}'

• To get an employee

$ curl -v -X GET http://localhost:8090/employees/1

• To update an employee detail

$ curl -v -X PUT http://localhost:8090/employees -d '{"empId": "1", firstName" : "Foo", "email": "[email protected]", "designation": "SSE"}'

• To delete an employee

$ curl -v -X DELETE http://localhost:8090/employees/1