Base types and metadata caching engine for MemberJunction's templating system. Provides cached access to template metadata and can be used on both client and server.

Architecture

graph TD
    subgraph "@memberjunction/templates-base-types"
        A[TemplateEngineBase] --> B[Templates Cache]
        A --> C[Template Contents]
        A --> D[Template Params]
        A --> E[Content Types]
        A --> F[Categories]
    end

    subgraph "Loaded via Dataset"
        G["Template_Metadata<br/>Dataset"]
    end

    G --> A

    H["@memberjunction/templates<br/>(Server Engine)"] --> A

    style A fill:#2d6a9f,stroke:#1a4971,color:#fff
    style B fill:#2d8659,stroke:#1a5c3a,color:#fff
    style C fill:#2d8659,stroke:#1a5c3a,color:#fff
    style D fill:#2d8659,stroke:#1a5c3a,color:#fff
    style E fill:#7c5295,stroke:#563a6b,color:#fff
    style F fill:#7c5295,stroke:#563a6b,color:#fff
    style H fill:#b8762f,stroke:#8a5722,color:#fff

Overview

This package provides the foundational layer for MemberJunction's templating system:

TemplateEngineBase: Singleton engine that loads and caches all template metadata via the Template_Metadata dataset
TemplateRenderResult: Standard result type for template rendering operations
Metadata Access: Cached getters for templates, content types, categories, contents, and params
Template Lookup: Convenience method for finding templates by name (case-insensitive)
Content Association: Automatically associates template contents and params with their parent templates after loading

Installation

npm install @memberjunction/templates-base-types

Usage

Initializing the Engine

import { TemplateEngineBase } from '@memberjunction/templates-base-types';

// Load template metadata
await TemplateEngineBase.Instance.Config(false, contextUser);

// Force refresh
await TemplateEngineBase.Instance.Config(true, contextUser);

Accessing Template Metadata

const engine = TemplateEngineBase.Instance;

// All templates (with Content and Params pre-associated)
const templates = engine.Templates;

// Find a template by name
const emailTemplate = engine.FindTemplate('Welcome Email');

// Access template contents and params
const contents = emailTemplate.Content;
const params = emailTemplate.Params;

// Other metadata
const contentTypes = engine.TemplateContentTypes;
const categories = engine.TemplateCategories;

TemplateRenderResult

import { TemplateRenderResult } from '@memberjunction/templates-base-types';

// Returned by rendering operations
const result: TemplateRenderResult = {
    Success: true,
    Output: '<html>...</html>',
    Message: undefined  // Only set on failure
};

API Reference

TemplateEngineBase

Member	Type	Description
`Instance`	static getter	Singleton instance
`Config()`	method	Load/refresh template metadata
`Templates`	getter	All templates with associated contents and params
`TemplateContentTypes`	getter	Available content types
`TemplateCategories`	getter	Template categories
`TemplateContents`	getter	All template content records
`TemplateParams`	getter	All template parameter definitions
`FindTemplate()`	method	Find template by name (case-insensitive)

TemplateRenderResult

Property	Type	Description
`Success`	boolean	Whether rendering succeeded
`Output`	string	The rendered output
`Message`	string (optional)	Error message on failure

Relationship to @memberjunction/templates

This package provides the metadata caching layer usable anywhere. The @memberjunction/templates package extends it with server-side Nunjucks rendering, custom extensions, and AI prompt integration.

graph LR
    A["@memberjunction/templates-base-types<br/>(Metadata + Types)"] --> B["@memberjunction/templates<br/>(Server Rendering)"]
    C[Client Code] --> A
    D[Server Code] --> B

    style A fill:#2d6a9f,stroke:#1a4971,color:#fff
    style B fill:#2d8659,stroke:#1a5c3a,color:#fff
    style C fill:#b8762f,stroke:#8a5722,color:#fff
    style D fill:#b8762f,stroke:#8a5722,color:#fff

Dependencies

Package	Purpose
`@memberjunction/core`	BaseEngine, UserInfo, IMetadataProvider
`@memberjunction/core-entities`	Template entity types
`@memberjunction/global`	MJGlobal class factory

License

ISC

FAQs

What is @memberjunction/templates-base-types?

Is @memberjunction/templates-base-types popular?

Is @memberjunction/templates-base-types well maintained?

Package last updated on 31 Jul 2026

Did you know?

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install

@memberjunction/templates-base-types