microsoft / microsoft/RulesEngine

Using the output from a rule as input to the expression for other rule

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C#
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Description

Is it possible to use the output of Rule1 as input to the next Rule ? Looking for something below. Accessing "Expression": "context.TotalAmount >= 100000", . The TotalAmount is conditionally calculated in the previous rule, and it needs to be passed to the next Rule.

{
"WorkflowName": "EvaluateRuleActionTest",
"GlobalParams": [
{
"Name": "OrderCount",
"Expression": "1 + 1"
}
],
"Rules": [
{
"RuleName": "TotalAmount5W",
"Expression": "input1 + input2 >= 50000", // Expression to evaluate
"Actions": {
"OnSuccess": [
{
"Name": "OutputExpression", // Action to output TotalAmount
"Context": {
"TotalAmount": "input1 + input2" // Setting TotalAmount conditionally
}
}
]
}
},
{
"RuleName": "TotalAmount10W",
"Expression": "context.TotalAmount >= 100000", // Accessing the TotalAmount from context
"Actions": {
"OnSuccess": [
{
"Name": "EvaluateRule",
"Context": {
"workflowName": "EvaluateRuleActionTest",
"ruleName": "TotalAmount10W"
}
}
]
}
}
]
}

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  3. Fork the repository and make your change on a branch.
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Research direction

The issue names no source files, tests, or entry points. Start by tracing how rule actions write Context and how subsequent rule expressions receive context, then determine whether values from one rule are available to the next. Done means a conditional output from Rule1 can be referenced by Rule2 as context.TotalAmount, with coverage for the shown workflow.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
backend
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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