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    Rainbow JS CodeGeneration

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    npm i rainbow-js-codegeneration --saveDev


    The module exposes one method generate that accepts options object as a parameter

    import { generator, IOptions } from 'rainbow-js-codegeneration';
    const options: IOptions = {
      cwd: path,
    const result = await generator(options);


    This method search for files based on pattern provided, read them and construct templates objects. Once processing is done it complies Handlebars template and generates C# code.


    • cwd: string (required) - defines a root directory for a glob search;
    • pattern: string|string[] (required) - defines a pattern for the glob search;
    • templatePath: string (default: standard template for GlassMapper embedded) - path to a Handlebars template file that will process templates info.;
    • Using: string[] - a list of using that should be rendered in the header of the file;
    • ToClass: function(name:string) (default: PascalCase class name) - overrides a logic that generates class names;
    • ToInterface: function(name:string) (default: class name prepended with 'I')- overrides a logic that generates interface names;
    • ToNamespace: function(path:string) (default: section of a path excluding /sitecore/templates and template name) - overrides a logic that generates namespace names;
    • ToProperty: function(name:string) (default: PascalCase property name)- overrides a logic that generates property names from field names;
    • ToPropertyType: function(type:string, id:string) (default: simple mapping to available types in GlassMapper) - extends logic related to mapping of a fields to C# tpe of a property. If return undefined will fall back to default.


    The method will compile provided or embedded template and pass two objects there templates and options

    Sample of a template file:

    #pragma warning disable 1591
    #pragma warning disable 0108
    // <auto-generated>
    //     This code was generated by Rainbow JS CodeGeneration.
    //     (
    //     Changes to this file may cause incorrect behavior and will be lost if
    //     the code is regenerated.
    // </auto-generated>
    using System;
    using System.Collections.Generic;
    using System.Collections.Specialized;
    using System.Linq;
    using System.Text;
    using Glass.Mapper.Sc.Configuration.Attributes;
    using Glass.Mapper.Sc.Configuration;
    using Glass.Mapper.Sc.Fields;
    using Sitecore.Globalization;
    using Sitecore.Data;
    using Sitecore.Data.Items;
    {{#each options.Using}}using {{this}};\n{{/each}}
    {{#each templates}}
    namespace {{this.AsNamespace}}
      /// <summary>
      /// {{this.AsInterface}} Interface
      /// <para>Path: {{this.Path}}</para>
      /// <para>ID: {{this.ID}}</para>
      /// </summary>
      public partial interface {{this.AsInterface}}: {{#each this.BaseTemplates}}{{this.AsInterface}}, {{/each}}IGlassBase
        {{#each this.Fields}}
        /// <summary>
        /// The {{this.PropertyName}} field.
        /// <para>Field Type: {{this.Type}}</para>
        /// <para>Field ID: {{this.ID}}</para>
        /// </summary>
        {{{this.AsPropertyType}}} {{this.AsProperty}} {get; set;}

    Template Helpers

    guid-b: will convert text to UPPER CASE and wrap in { }. Could be used to emulate output of C# method .ToString("B")

    {{guid-b this.ID}}
    {{! will return "{00000000-ABCD-0000-0000-000000000000}"}}

    guid-d: will convert text to UPPER CASE. Could be used to emulate output of C# method .ToString("D")

    {{guid-b this.ID}}
    {{! will return "00000000-ABCD-0000-0000-000000000000"}}

    Gulp integration


    The library provides a Gulp plugin. The plugin will generate code file for each configuration file detected. See example below:

    // other imports
    var codeGen = require('rainbow-js-codegeneration').generationPlugin;
    // code generation task
    gulp.task("Generate-Code", function (callback) {
      gulp.src('**/codegeneration.config.js', { base: "./" })
        .pipe(rename(function (path) {
          path.basename = "Templates.Generated";
          path.extname = ".cs"
        .on("end", function () { // will make sure that you wait for generation to finish


    Configuration of the library could be provided via JS module. See example below:

    var path = require("path");
    module.exports = {
      cwd: path.join(__dirname, '..'),
      pattern: '**/serialization/*.Templates/**/*.yml',
      Using: [ 'System.CodeDom.Compiler' ],
      templatePath: path.join(__dirname, 'codegeneration.tmpl'),

    Available scripts

    • clean - remove coverage data, Jest cache and transpiled files,
    • build - transpile TypeScript to ES6,
    • watch - interactive watch mode to automatically transpile source files,
    • lint - lint source files and tests,
    • test - run tests,
    • test:watch - interactive watch mode to automatically re-run tests


    Licensed under the MIT. See the LICENSE file for details.


    npm i rainbow-js-codegeneration

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