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How To: Retrieve a secret

Use the secret store building block to securely retrieve a secret

Now that you’ve learned what the Dapr secrets building block provides, learn how it can work in your service. This guide demonstrates how to call the secrets API and retrieve secrets in your application code from a configured secret store.

Diagram showing secrets management of example service.

Set up a secret store

Before retrieving secrets in your application’s code, you must configure a secret store component. This example configures a secret store that uses a local JSON file to store secrets.

In your project directory, create a file named secrets.json with the following contents:

{
   "secret": "Order Processing pass key"
}

Create a new directory named components. Navigate into that directory and create a component file named local-secret-store.yaml with the following contents:

apiVersion: dapr.io/v1alpha1
kind: Component
metadata:
  name: localsecretstore
spec:
  type: secretstores.local.file
  version: v1
  metadata:
  - name: secretsFile
    value: secrets.json  #path to secrets file
  - name: nestedSeparator
    value: ":"

For more information:

Get a secret

Get the secret by calling the Dapr sidecar using the secrets API:

curl http://localhost:3601/v1.0/secrets/localsecretstore/secret

See a full API reference.

Calling the secrets API from your code

Now that you’ve set up the local secret store, call Dapr to get the secrets from your application code. Below are code examples that leverage Dapr SDKs for retrieving a secret.


//dependencies
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using Dapr.Client;
using Microsoft.AspNetCore.Mvc;
using System.Threading;
using System.Text.Json;

//code
namespace EventService
{
    class Program
    {
        static async Task Main(string[] args)
        {
            string SECRET_STORE_NAME = "localsecretstore";
            using var client = new DaprClientBuilder().Build();
            //Using Dapr SDK to get a secret
            var secret = await client.GetSecretAsync(SECRET_STORE_NAME, "secret");
            Console.WriteLine($"Result: {string.Join(", ", secret)}");
        }
    }
}


//dependencies
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.dapr.client.DaprClient;
import io.dapr.client.DaprClientBuilder;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Map;


//code
@SpringBootApplication
public class OrderProcessingServiceApplication {

    private static final Logger log = LoggerFactory.getLogger(OrderProcessingServiceApplication.class);
    private static final ObjectMapper JSON_SERIALIZER = new ObjectMapper();

    private static final String SECRET_STORE_NAME = "localsecretstore";

    public static void main(String[] args) throws InterruptedException, JsonProcessingException {
        DaprClient client = new DaprClientBuilder().build();
        //Using Dapr SDK to get a secret
        Map<String, String> secret = client.getSecret(SECRET_STORE_NAME, "secret").block();
        log.info("Result: " + JSON_SERIALIZER.writeValueAsString(secret));
    }
}


#dependencies 
import random
from time import sleep    
import requests
import logging
from dapr.clients import DaprClient
from dapr.clients.grpc._state import StateItem
from dapr.clients.grpc._request import TransactionalStateOperation, TransactionOperationType

#code
logging.basicConfig(level = logging.INFO)
DAPR_STORE_NAME = "localsecretstore"
key = 'secret'

with DaprClient() as client:
    #Using Dapr SDK to get a secret
    secret = client.get_secret(store_name=DAPR_STORE_NAME, key=key)
    logging.info('Result: ')
    logging.info(secret.secret)
    #Using Dapr SDK to get bulk secrets
    secret = client.get_bulk_secret(store_name=DAPR_STORE_NAME)
    logging.info('Result for bulk secret: ')
    logging.info(sorted(secret.secrets.items()))


//dependencies 
import (
	"context"
	"log"

	dapr "github.com/dapr/go-sdk/client"
)

//code
func main() {
	client, err := dapr.NewClient()
	SECRET_STORE_NAME := "localsecretstore"
	if err != nil {
		panic(err)
	}
	defer client.Close()
	ctx := context.Background()
     //Using Dapr SDK to get a secret
	secret, err := client.GetSecret(ctx, SECRET_STORE_NAME, "secret", nil)
	if secret != nil {
		log.Println("Result : ")
		log.Println(secret)
	}
    //Using Dapr SDK to get bulk secrets
	secretBulk, err := client.GetBulkSecret(ctx, SECRET_STORE_NAME, nil)

	if secret != nil {
		log.Println("Result for bulk: ")
		log.Println(secretBulk)
	}
}


//dependencies 
import { DaprClient, HttpMethod, CommunicationProtocolEnum } from '@dapr/dapr'; 

//code
const daprHost = "127.0.0.1"; 

async function main() {
    const client = new DaprClient(daprHost, process.env.DAPR_HTTP_PORT, CommunicationProtocolEnum.HTTP);
    const SECRET_STORE_NAME = "localsecretstore";
    //Using Dapr SDK to get a secret
    var secret = await client.secret.get(SECRET_STORE_NAME, "secret");
    console.log("Result: " + secret);
    //Using Dapr SDK to get bulk secrets
    secret = await client.secret.getBulk(SECRET_STORE_NAME);
    console.log("Result for bulk: " + secret);
}

main();

Last modified September 28, 2022: [Secrets Mgmt] overview & how-to refresh (#2678) (e4112bba)