SnowTechStack

ServiceNow is ready with the next release which is Xanadu and Introduced Domain specific Programming language Fluent and also SDK and IDE for ServiceNow users.

What is ServiceNow fluent ?

A TypeScript-based domain-specific language (DSL) called ServiceNow Fluent is used to define the metadata files [sys_metadata] that comprise applications. It also contains APIs for various sorts of metadata, including roles, tables, ACLs, business rules, and tests written using the Automated Test Framework.

Instead of using a form or builder tool user interface, developers create this metadata in a few lines of code. ServiceNow Fluent is compatible with applications developed using the ServiceNow IDE or ServiceNow SDK.

ServiceNow Fluent facilitates bidirectional synchronisation, enabling modifications to source code to be synchronised back to metadata across the instance and modifications to metadata to be synchronised from different Now Platform user interfaces into source code.

Fluent Examples

Record Creation

//Create record in sys_app_category table
import { Record } from '@servicenow/sdk/core';

export const appCategory = Record({
table: 'sys_app_category',
$id: Now.ID[9],
data: {
   name: 'example'
},
})

Business Rule Creation

//creates a business rule that pops up state change message whenever a todo record is updated
import '@servicenow/sdk/global'
import { BusinessRule } from '@servicenow/sdk/core'
import { showStateUpdate } from '../server/script.js'

BusinessRule({
    $id: Now.ID['br0'],
    action: ['update'],
    table: 'x_snc_example_to_do',
    script: showStateUpdate,
    name: 'LogStateChange',
    order: 100,
    when: 'after',
    active: true,
})

Client Script Creation

//creates a client script that pops up 'Table loaded successfully!!' message everytime todo record is loaded
import '@servicenow/sdk/global'
import { ClientScript } from '@servicenow/sdk/core'

ClientScript({
    $id: Now.ID['cs0'],
    name: 'my_client_script',
    table: 'x_snc_example_to_do',
    active: true,
    applies_extended: false,
    global: true,
    ui_type: 'all',
    description: 'Custom client script generated by Now SDK',
    messages: '',
    isolate_script: false,
    type: 'onLoad',
    script: script`function onLoad() {
        g_form.addInfoMessage("Table loaded successfully!!")
    }`,
})

ServiceNow SDK

Software Development Kit (SDK) is is a set of platform-specific building tools for developers.

SDKs put everything you need to develop and run software in one place.This helps us to merge everything in one package

ServiceNow SDK is the NPM package which contains the required file that we can import while writing script in ServiceNow fluent.

The ServiceNow software development kit (SDK) provides the core libraries and tools for authoring applications with application metadata written in code using the ServiceNow Fluent language, as well as server-side JavaScript modules and third-party libraries. The SDK aims to transform the ServiceNow development experience by providing a source-driven model with modern, industry-standard development paradigms.

ServiceNow IDE

ServiceNow Integrated Development Environment (IDE) is a new application in ServiceNow Xanadu release.

IDE is based on the visual studio code which enables developer to built scope application using code.

We can write code in IDE using ServiceNow Fluent Language also, It manages different application in source control with common Git providers.

If we change something in the metadata which is created using IDE in normal view then it gets synchronise with the IDE code as well.All the libraries are available in the IDE.

Below image shows how IDE looks like

Author

Akshay Bhawsar