aws-helpers-hlf-node-parameterstorekvs

Parameter Store KVS

A simple Key-Value store interface library for Amazon Systems Manager Parameter Store service. It can be used stand-alone for simple use cases when all you need is to just put a value or get a value to/from the ParameterStore. It is also compatible with Hyperledger Fabric Node SDK, so that you can put Connection Profile configuration to the Parameter Store and share it across all instances of your blockchain client application.

Pre-requisites

1. Make sure you are using NodeJS version 10 and above.
2. Configure your AWS NodeJS SDK
3. Please make sure you set environment variable AWS_REGION to the region you are planning to you use, like this: export AWS_REGION=us-east-1

Usage

const ParameterStoreKVS = require("parameterstorekvs");
 
(async () => {
    const key = "config"
    const value = "myAppConfigValue"
    try {
        // Pre-configuring all application-specific configuration keys to start with "/myAppConfigPrefix" and cache TTL of 5 minutes
        const kvs = new ParameterStoreKVS({
            prefix: "/myAppConfigPrefix",
            cacheTtl: 5*60*1000
        })
        // Put value to Systems Manager under key "/myAppConfigPrefix/config" and value "myAppConfigValue"
        const response = await kvs.setValue(key, value);
 
        if (response) {
            console.log(`Response from setValue: ${JSON.stringify(response)}`);
        } else {
            console.log(`Could not set value for key ${key} not found.`);
        }
 
        // Get value for key "/myAppConfigPrefix/config"
        const valueFromConfig = await kvs.getValue(key, value);
 
        if (value) {
            console.log(`Value from config: ${valueFromConfig}`);
        } else {
            console.log(`Value for key ${key} not found.`);
        }
    } catch (err) {
        console.error(`Error: ${err}`);
    }
})()