Mta-deps-parser NPM

Description

Parse a SAP MTA development descriptor string and expose modules, resources and dependencies between them as Javascript objects.

This package is the base of the mta-visual-dep tool.

Install

NPM package:

npm install mta-deps-parser

Usage example

Prerequisite: copy a mta.yaml file in the root folder

This example read the file, call the parse method and print the list of all the objects and relationships between them to the console.

const fs = require('fs');
const MtaDepsParser = require('mta-deps-parser');

const mtaString = fs.readFileSync('./mta.yaml', 'utf8');

const mtaDeps = MtaDepsParser.parse(mtaString);

mtaDeps.nodes.forEach((node) => {
    console.log(`${node.type} ${node.name}:`);
    node.links.forEach((link) => {
        console.log(`   ${link.type} ${link.name}`);
    });
});

API Overview

MTADeps:

You can image MTADeps as a graph, all the modules, resources, properties, etc are nodes, relations between these objects are links between nodes.

Parse method:

parse(str): object MtaDeps

Nodes:

The nodes property contains the list of all the modules, resources, properties and enviroment variables defined in the MTA descriptor. Each node has some properties to describe the node and the property links that contains the list of the dependencies with other nodes.

Each node exposes the following properties:

category: category of the node: module, resource, etc, possible categories are exposed as constants defined in nodeCategory
type: type of the node, nodejs, generic deployer, approuter, db deployer, xsuaa service, etc, possible types are exposed as constants defined in nodeType
name: name of the module or resource
links: array with the link to the other nodes, properties:
- type: the type of the link, possible values are exposed as constants defined in linkType
- destNode: a reference to the destination node
additionalInfo: depending on the type of the node additional properties are available (not yet completely implemented)