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Feature: Add support for accessing NodeData via json path #1820

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merged 3 commits into from
Mar 1, 2024
Merged

Feature: Add support for accessing NodeData via json path #1820

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877c283
Feature: Add support for accessing NodeData via json path
mokeyish Feb 27, 2024
6a6cfb6
Update index.ts
mokeyish Feb 27, 2024
b7d01f1
Update index.ts
mokeyish Feb 27, 2024
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40 changes: 37 additions & 3 deletions packages/server/src/utils/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -528,11 +528,45 @@ export const getVariableValue = (
variableDict[`{{${variableFullPath}}}`] = handleEscapeCharacters(convertChatHistoryToText(chatHistory), false)
}

// Split by first occurrence of '.' to get just nodeId
const [variableNodeId, _] = variableFullPath.split('.')
// Resolve values with following case.
// 1: <variableNodeId>.data.instance
// 2: <variableNodeId>.data.instance.pathtokey
const variableFullPathParts = variableFullPath.split('.')
const variableNodeId = variableFullPathParts[0]
const executedNode = reactFlowNodes.find((nd) => nd.id === variableNodeId)
if (executedNode) {
const variableValue = get(executedNode.data, 'instance')
let variableValue = get(executedNode.data, 'instance')

// Handle path such as `<variableNodeId>.data.instance.key`
if (variableFullPathParts.length > 3) {
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let variableObj = null
switch (typeof variableValue) {
case 'string': {
const unEscapedVariableValue = handleEscapeCharacters(variableValue, true)
if (unEscapedVariableValue.startsWith('{') && unEscapedVariableValue.endsWith('}')) {
try {
variableObj = JSON.parse(unEscapedVariableValue)
} catch (e) {
// ignore
}
}
break
}
case 'object': {
variableObj = variableValue
break
}
default:
break
}
if (variableObj) {
variableObj = get(variableObj, variableFullPathParts.slice(3))
variableValue = handleEscapeCharacters(
typeof variableObj === 'object' ? JSON.stringify(variableObj) : variableObj,
false
)
}
}
if (isAcceptVariable) {
variableDict[`{{${variableFullPath}}}`] = variableValue
} else {
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