Configure your Node.js applications using Spring Cloud Config

Benefits

• Server and client data decryption

Installation

npm install node-scc-config

yarn add node-scc-config

Usage

1. Create a client-side pointer to the Spring Cloud Config service

   const client = new SpringCloudConfigClient('your spring cloud config endpoint address...');

2. Configuring the client before calling

   client
       .beforeLoad(s => ({
           your request options...
       }))

3. Configuring the client after the call

   Chipher marker defaults to '{cipher}'

• Chipher marker

  client
      .afterLoad(d => d
          .setChipherMarker('your chipher marker...')

• Data replacer by templates

  Example: { ['{HOST}']: 'test', ['{SERVICE_NAME}']: 'app-service' }

  client
      .afterLoad(d => d
          .setReplacer('your template...')

• Data decryption
  • client

    client
        .afterLoad(d => d
            .setDecryptor(new AesDecryptor('your secret key or password...')))

  • server

    client
        .afterLoad(d => d
            .setDecryptor(new ServiceDecryptor('your decryption endpoint address...')))

• Source preparation
  • Merge source

    Default implementation if no function is specified

    client
        .afterLoad(d => d
            .setMergeSource<AppServiceApiConfig>((configuration?: TConfiguration<AppServiceApiConfig>) => {
                your code to merge source...
            }))

  • Prepare source

    Default implementation if no function is specified

    client
        .afterLoad(d => d
            .setPrepareSource<AppServiceApiConfig>((source: Record<string, any>) => {
                your code to prepare source...
            }))

3. Call loading the configuration

   await client.load();

4. Using the loaded configuration

   type AppServiceApiConfig = {
       logLevel: string;
       options: {
           service: {
               url: string;
               login: string;
               password: string;
           };
       };
       testOptions: {
           url: string;
       };
   };
   
   const config = getConfiguration<AppServiceApiConfig>();