kisdaniel/cloud-config-client

Simple nodejs cloud config client

Spring Cloud Config Client for NodeJS

Requires: NodeJS 4+

Feature requests are welcome.

Install

npm install cloud-config-client --save

Usage

const client = require("cloud-config-client");
client.load({
    application: "invoices"
}).then((config) => {
    // Look for a key
    const value1 = config.get("this.is.a.key");

    // Using a prefix, this is equivalent to .get("this.is.another.key");
    const value2 = config.get("this.is", "another.key");
});

load function

Load implementation

Parameters

• options - Object, mandatory:
  • endpoint string, optional, default=http://localhost:8888: Config server URL.
  • rejectUnauthorized - boolean, optional, default = true: if false accepts self-signed certificates
  • application - string, deprecated, use name: Load configuration for this application.
  • name - string, mandatory: Load the configuration with this name.
  • profiles string[], optional, default=["default"]: Load profiles.
  • label - string, optional: Load environment.
  • auth - Object, optional: Basic Authentication for access config server (e.g.: { user: "username", pass: "password"}). endpoint accepts also basic auth (e.g. http://user:pass@localhost:8888).
    • user - string, mandatory
    • pass - string, mandatory
• callback - function(error: Error, config: Config), optional: node style callback. If missing, the method will return a promise.

client.load(options)
.then((config) => { ... })
.catch((error) => { ... });
 
// or
 
client.load(options, (error, config) => { ... });

Config object

Config class implementation

Properties

• raw: Spring raw response data.
• properties: computed properties as per Spring specification:

  Property keys in more specifically named files override those in application.properties or application.yml.

Methods

• get(...parts): Retrieve a value at a given path or undefined. Multiple parameters can be used to calculate the key.
  • parts - string, variable, mandatory:
• forEach(callback, includeOverridden): Iterate over every key/value in the config.
  • callback - function(key: string, value: string), mandatory: iteration callback.
  • includeOverridden - boolean, optional, default=false: if true, include overridden keys.
• toString(spaces): string: Return a string representation of raw property.
  • spaces - number, optional: spaces to use in format.

config.get("this.is.a.key");
config.get("this.is", "a.key");
config.get("this", "is", "a", "key");

config.forEach((key, value) => console.log(key + ":" + value));

References

• Spring Cloud Config