RWS Docs

Business rules are JavaScript functions that allow you to perform transformations and filters on data during the integration.

Transform data

Modify or combine values

Filter data

Remove data from the integration

Business rule structure

Every business rule is a JavaScript arrow function that receives a parameter and returns a value.

(context) => {
  // your logic here
  // returns transformed value
};

The context contains the current data being processed, and the function returns a value that can be used in the integration.

Object reference

Properties	Contains	Access
datapoint	Current record being processed	`context.datapoint`
enrichments	Each enrichment response, by its name	`context.{{ enrichmentName }}.{{ completeFieldPath }}`
params	Parameters used in Extraction	`context.params`

Reusable rule

In RWS Integration it is possible to reuse an existing rule.

When to use

When the same logic is used in multiple rules
To encapsulate very complex logic

How it works

You can use the BusinessRule.transform function to call an existing rule, it works with the following parameters:

Parameter	Description
tenantId	The ID of the tenant where the rule should be executed
ruleId	The ID of the business rule to be called
object	The object data that the other rule should use

Example

To create a reusable rule for price formatting and call it from other rules: Price Formatting Rule (ID: 67f51e19c8a10ceefa121cd2):

(context) => {
  const price = new Decimal(context.datapoint.price);
  return price.toFixed(2);
};

Product Rule (calls the formatter):

(context) => {
  const formattedPrice = await BusinessRule.transform(
    'yourTenant',
    '67f51e19c8a10ceefa121cd2',
    context
  );

  return {
    name: context.datapoint.name,
    price: formattedPrice
  };
}

Auxiliary libraries

RWS provides several JavaScript libraries that you can use in your business rules

Library	How to use	Documentation
Lodash	Global variable `_` (underscore)	Lodash documentation
Dayjs	Global variable `dayjs`	Day.js documentation
Decimaljs	Global variable `Decimal`	Decimal.js documentation

Connections

Business Rules

Extract

Load

Monitoring

Overview

Transform data

Filter data

Business rule structure

Object reference

Reusable rule

When to use

How it works

Example

Auxiliary libraries

Transform data

Filter data

​Business rule structure

​Object reference

​Reusable rule

​When to use

​How it works

​Example

​Auxiliary libraries

Business rule structure

Object reference

Reusable rule

When to use

How it works

Example

Auxiliary libraries