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frms-coe-startup-lib / 2.2.0-rc.4

frms-coe-startup-lib 2.2.0-rc.4

Install from the command line:
Learn more about npm packages
$ npm install @frmscoe/frms-coe-startup-lib@2.2.0-rc.4
Install via package.json:
"@frmscoe/frms-coe-startup-lib": "2.2.0-rc.4"

About this version

frms-coe-lib

FRMS Center of Excellence startup library.

Installation

A personal access token is required to install this repository. For more information read the following. https://docs.github.com/en/packages/learn-github-packages/about-permissions-for-github-packages#about-scopes-and-permissions-for-package-registries

Thereafter you can run

npm install @frmscoe/frms-coe-lib

Usage

On Startup Initialise the library.

// Import functionality and types
import { StartupFactory, IStartupService } from "@frmscoe/frms-coe-startup-lib";

// Initialise Server, and provide a function to be called when a incomming NATS message is received.
server = new StartupFactory();
for (let retryCount = 0; retryCount < 10; retryCount++) {
  console.log(`Connecting to nats server...`);
  if (!(await server.init(handleTransaction))) {
    await new Promise((resolve) => setTimeout(resolve, 5000));
  } else {
    console.log(`Connected to nats`);
    break;
  }
}

  // Inside your function when you want to publish a message:
  server.handleResponse(transaction);

Environmental Variables

Variable Value Description
STARTUP_TYPE 'nats' or 'jetstream' Server Startup Type
NODE_ENV debug, dev, prod, test Node Environment Type
SERVER_URL 0.0.0.0:4222 NATS Server Address
FUNCTION_NAME function Processor Name, used for durable name
PRODUCER_STREAM processorName Stream the application will use to publish messages.
CONSUMER_STREAM processorName Processor will receive messages from this stream.
STREAM_SUBJECT subjectName Subject within consumer stream processor is listening on.
PRODUCER_RETENTION_POLICY 'Limits', 'Interest', 'Workqueue' Defaults to 'Workqueue'
ACK_POLICY 'All','Explicit' Defaults to 'Explicit'
PRODUCER_STORAGE 'File','Memory' Defaults to 'Memory'

FRMS Reccomended Setup - Jetstream

Preview Image

Details


Assets

  • frms-coe-startup-lib-2.2.0-rc.4.tgz

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