2.1.0 • Public • Published

Config Manager

A thin wrapper around AWS Systems Mananger, Parameter Store for keeping remote config secure. For usage visit here.

The package is intended to act as a convenient CLI tool for updating remote configuration in AWS and for use in a CI environment for pulling configuration into build processes.


You should have an AWS Access Key Id and AWS Secret Access Key in your bash / shell profile. For instructions on this visit here.


For basic usage, with NodeJS installed, run npm install -g @reapit/config-manager.

You will need to create a source file for your parameter if creating or updating. The default source file is config.json in your current working directory however, it is likely you will want to provide a custom source file. See below --file-path flag for more information.

Then with either yarn run yarn config-manager or with NPM run npx config-manager.

This will load a CLI that will walk you through the process of config management.

For CI usage, you will need to pass flags and values to the Yarn or NPM task as below:

--mode Either create, update, delete or fetch. Each mode will select the corresponding CRUD method in Parameter Store.

--namespace The base key of your parameter - e.g. name of team or owner. Will be PascalCased by the lib.

--entity The next level key of your parameter - e.g. application, service name, db-name. Will be PascalCased by the lib.

--name Optional next level key of your parameter - e.g. enviroment name or a specific variable name.

--file-path A relative or absolute path to your source file if you are updating or creating a parameter. If you are fetching a parameter, this is desired target file for the returned resource. Defaults to ./config.json for JSON format and ./config.txt for strings (see format below) however, it can be any filetype that can be parsed by Node / CommonJS as a string.

--format Either string or json, defaults to json. Parameter store considers any value to be a string but if you provide an object or JSON as your source file, we will JSON.stringify it before saving. If fetching, we will JSON.parse the returned value before writing to target file.


A sample query to fetch a parameter in the format of /CloudTeam/DeveloperPortal/Production writing to a custom JSON file would look like yarn config-manger --mode fetch --namespace cloudTeam --entity developerPortal --name production --file-path ./custom.json --format json

You can also override values by adding additional flags, useful if you want to pass in a different filename or variable name based on a CI enviroment. To do this, just add an additional named flag and the library will apply the last value specified eg yarn config-manger --mode fetch --namespace cloud --entity marketplace --name production --name local will return a parameter in the format /Cloud/Marketplace/Local




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npm i @reapit/config-manager

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  • wmcvayreapit
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