@memberjunction/core NPM

@memberjunction/core

The @memberjunction/core library provides a comprehensive interface for accessing and managing metadata within MemberJunction, along with facilities for working with entities, applications, and various other aspects central to the MemberJunction ecosystem. This library primarily exports a Metadata class which acts as the gateway to many functionalities.

Installation

npm install @memberjunction/core

```markdown
## Usage

### Importing the Library

```javascript
import { Metadata } from '@memberjunction/core';

Working with the Metadata Class

The Metadata class is a crucial part of this library, providing access to a wide array of metadata, instantiating derived classes of BaseEntity for record access and manipulation, and more.

Instantiating the Metadata Class

const md = new Metadata();

Refreshing Cached Metadata

await md.Refresh();

Getting Applications, Entities, and Other Info

const applications = md.Applications;
const entities = md.Entities;
const currentUser = md.CurrentUser;
// ... and so on for other properties

Helper Functions

// Get Entity ID from name
const entityId = md.EntityIDFromName('EntityName');

// Get Entity name from ID
const entityName = md.EntityNameFromID(1);

// ... and other helper functions as defined in the class

Working with Datasets

// Example: Getting a dataset by name
const dataset = await md.GetDatasetByName('DatasetName');

This is a brief overview of how to interact with the Metadata class. The methods and properties provided by the Metadata class serve as a bridge to access and manage data in a structured and coherent manner within the MemberJunction ecosystem.

RunView and RunViewParams

The @memberjunction/core library also provides a mechanism for running either a stored or dynamic view through the RunView class. The parameters for running these views are specified through the RunViewParams type.

Importing Necessary Classes and Types

import { RunView, RunViewParams } from '@memberjunction/core';

Using RunViewParams

RunViewParams is a type that helps in specifying the parameters required to run a view. The fields in RunViewParams allow you to specify whether you want to run a stored or dynamic view, and provide additional filters, sorting, and other options. Here's an example of how you might create a RunViewParams object:

const params: RunViewParams = {
    ViewName: 'MyView',
    ExtraFilter: 'Age > 25',
    OrderBy: 'LastName ASC',
    Fields: ['FirstName', 'LastName'],
    UserSearchString: 'Smith'
    // ... other optional properties as needed
};

Using the RunView Class

The RunView class provides a method to run a view based on the provided parameters.

Instantiating the RunView Class

const rv = new RunView();

Running a View

const result = await rv.RunView(params);

In this example, params is an object of type RunViewParams which contains the information necessary to run the view. The RunView method will return a Promise<RunViewResult> which will contain the result of running the view.