Run Godspeed workflows without any eventsources

[mastersilv3r]

The Problem

Currently Godspeed project starts as a service only, and depends on some event source like http graphql etc to start. If we want to setup datasources and run some workflows, we can not do it via a command line.

The Solution

Allow a developer to run workflows from a command.
Remove the condition that there must be atleast one eventsource. If no event sources are found, events folder will also be ignored. Rest of the things like config, functions, mappings, datasources will be loaded.

How will we solve

• When initializing godspeed instance, allow every param to be optional and also pass withoutEventSource as true as second argument to godspeedInstance.initialize()
• In GodspeedParams, following changes will happen

• Allow developer to call workflows without running any eventsource like this.

import Godspeed, { GodspeedParams, logger, childLogger } from "@godspeedsystems/core";

const params: GodspeedParams = {
    // eventsFolderPath: undefined,
    workflowsFolderPath: 'dist/functions',
    definitionsFolderPath: 'dist/definitions',
    configFolderPath: '/config',
    datasourcesFolderPath: 'dist/datasources',
    // eventsourcesFolderPath: undefined,
    mappingsFolderPath: 'dist/mappings',
    pluginsFolderPath: 'dist/plugins'
  }

// create a godspeed instance without events and eventsources folder paths. Do remember to pass true for initializing without eventsources. Otherwise project will load from default value of eventsource folder. That will be something you do not want for invoking a workflow directly.
const gsApp = new Godspeed(params, true);

// initilize the Godspeed App
// this is responsible to load all kind of entities
gsApp.initialize().then(async () => {
    logger.info('project initialized');
    await execute();
    
})
.catch(console.error)
async function execute() {
    await gsApp.executeWorkflow('model.device.create', {body: {name: 'mastersilv3r'}});
}