feat(core): Update LLM applications building support (no-changelog) (#7418)

extracted out of #7336

---------

Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>
Co-authored-by: OlegIvaniv <me@olegivaniv.com>
Co-authored-by: Jan Oberhauser <janober@users.noreply.github.com>
Co-authored-by: Val <68596159+valya@users.noreply.github.com>
Co-authored-by: Alex Grozav <alex@grozav.com>
Co-authored-by: Deborah <deborah@starfallprojects.co.uk>
Co-authored-by: Jesper Bylund <mail@jesperbylund.com>
Co-authored-by: Jon <jonathan.bennetts@gmail.com>

packages/core/src/NodeExecuteFunctions.ts

@@ -2469,6 +2469,10 @@ const addExecutionDataFunctions = async (
 			});
 		}
 
+		if (get(runExecutionData, 'executionData.metadata', undefined) === undefined) {
+			runExecutionData.executionData!.metadata = {};
+		}
+
 		let sourceTaskData = get(runExecutionData, `executionData.metadata[${sourceNodeName}]`);
 
 		if (!sourceTaskData) {
@@ -3033,7 +3037,7 @@ export function getExecuteFunctions(
 						};
 
 						try {
-							return await nodeType.supplyData.call(context);
+							return await nodeType.supplyData.call(context, itemIndex);
 						} catch (error) {
 							if (!(error instanceof ExecutionBaseError)) {
 								error = new NodeOperationError(connectedNode, error, {

packages/editor-ui/src/components/ChatEmbedModal.vue

@@ -69,9 +69,9 @@ import { createChat } from '@n8n/chat';`,
 }));
 
 const cdnCode = computed(
-	() => `<link href="https://cdn.jsdelivr.net/npm/@n8n/chat/style.css" type="text/css" />
+	() => `<link href="https://cdn.jsdelivr.net/npm/@n8n/chat/style.css" rel="stylesheet" />
 <script type="module">
-import { createChat } from 'https://cdn.jsdelivr.net/npm/@n8n/chat/chat.js';
+import { createChat } from 'https://cdn.jsdelivr.net/npm/@n8n/chat/chat.bundle.es.js';
 
 ${commonCode.value.createChat}
 </${'script'}>`,

packages/editor-ui/src/components/NodeDetailsView.vue

@@ -274,6 +274,21 @@ export default defineComponent({
 			return [];
 		},
 		parentNode(): string | undefined {
+			const pinData = this.workflowsStore.getPinData;
+
+			// Return the first parent node that contains data
+			for (const parentNodeName of this.parentNodes) {
+				// Check first for pinned data
+				if (pinData[parentNodeName]) {
+					return parentNodeName;
+				}
+
+				// Check then the data of the current execution
+				if (this.workflowRunData?.[parentNodeName]) {
+					return parentNodeName;
+				}
+			}
+
 			return this.parentNodes[0];
 		},
 		isExecutableTriggerNode(): boolean {
@@ -617,8 +632,8 @@ export default defineComponent({
 			}
 
 			if (
-				typeof this.activeNodeType.outputs === 'string' ||
-				typeof this.activeNodeType.inputs === 'string'
+				typeof this.activeNodeType?.outputs === 'string' ||
+				typeof this.activeNodeType?.inputs === 'string'
 			) {
 				// TODO: We should keep track of if it actually changed and only do if required
 				// Whenever a node with custom inputs and outputs gets closed redraw it in case

packages/editor-ui/src/components/NodeExecuteButton.vue

@@ -98,6 +98,9 @@ export default defineComponent({
 			return this.uiStore.isActionActive('workflowRunning');
 		},
 		isTriggerNode(): boolean {
+			if (!this.node) {
+				return false;
+			}
 			return this.nodeTypesStore.isTriggerNode(this.node.type);
 		},
 		isManualTriggerNode(): boolean {

packages/editor-ui/src/components/NodeSettings.vue

@@ -233,13 +233,17 @@ export default defineComponent({
 			return this.readOnly || this.hasForeignCredential;
 		},
 		isExecutable(): boolean {
-			if (
-				this.nodeType &&
-				!this.isTriggerNode &&
-				!this.nodeType.inputs.includes(NodeConnectionType.Main)
-			) {
+			if (this.nodeType && this.node) {
+				const workflow = this.workflowsStore.getCurrentWorkflow();
+				const workflowNode = workflow.getNode(this.node.name);
+				const inputs = NodeHelpers.getNodeInputs(workflow, workflowNode!, this.nodeType!);
+				const inputNames = NodeHelpers.getConnectionTypes(inputs);
+
+				if (!inputNames.includes(NodeConnectionType.Main) && !this.isTriggerNode) {
 					return false;
 				}
+			}
+
 			return this.executable || this.hasForeignCredential;
 		},
 		nodeTypeName(): string {

packages/editor-ui/src/components/OutputPanel.vue

@@ -87,7 +87,7 @@
 		</template>
 
 		<template #content v-if="outputMode === 'logs'">
-			<run-data-ai :node="node" />
+			<run-data-ai :node="node" :run-index="runIndex" />
 		</template>
 		<template #recovered-artificial-output-data>
 			<div :class="$style.recoveredOutputData">
@@ -184,11 +184,11 @@ export default defineComponent({
 			if (this.node) {
 				const resultData = this.workflowsStore.getWorkflowResultDataByNodeName(this.node.name);
 
-				if (!resultData || !Array.isArray(resultData)) {
+				if (!resultData || !Array.isArray(resultData) || resultData.length === 0) {
 					return false;
 				}
 
-				return !!resultData[resultData.length - 1!].metadata;
+				return !!resultData[resultData.length - 1].metadata;
 			}
 			return false;
 		},

packages/editor-ui/src/components/RunData.vue

@@ -702,14 +702,9 @@ export default defineComponent({
 			const workflow = this.workflowsStore.getCurrentWorkflow();
 			const workflowNode = workflow.getNode(this.node.name);
 			const inputs = NodeHelpers.getNodeInputs(workflow, workflowNode!, this.nodeType!);
+			const inputNames = NodeHelpers.getConnectionTypes(inputs);
 
-			const nonMainInputs = !!inputs.find((input) => {
-				if (typeof input === 'string') {
-					return input !== NodeConnectionType.Main;
-				}
-
-				return input.type !== NodeConnectionType.Main;
-			});
+			const nonMainInputs = !!inputNames.find((inputName) => inputName !== NodeConnectionType.Main);
 
 			return (
 				!nonMainInputs &&

packages/editor-ui/src/components/RunDataJson.vue

@@ -161,7 +161,7 @@ export default defineComponent({
 			});
 		},
 		onDragStart(el: HTMLElement) {
-			if (el && el.dataset.path) {
+			if (el?.dataset.path) {
 				this.draggingPath = el.dataset.path;
 			}
 
@@ -169,8 +169,6 @@ export default defineComponent({
 		},
 		onDragEnd(el: HTMLElement) {
 			this.draggingPath = null;
-
-			setTimeout(() => {
 			const mappingTelemetry = this.ndvStore.mappingTelemetry;
 			const telemetryPayload = {
 				src_node_type: this.node.type,
@@ -185,8 +183,8 @@ export default defineComponent({
 				...mappingTelemetry,
 			};
 
+			setTimeout(() => {
 				void this.$externalHooks().run('runDataJson.onDragEnd', telemetryPayload);
-
 				this.$telemetry.track('User dragged data for mapping', telemetryPayload);
 			}, 1000); // ensure dest data gets set if drop
 		},

packages/editor-ui/src/components/VariableSelector.vue

@@ -594,7 +594,6 @@ export default defineComponent({
 
 			const executionData = this.workflowsStore.getWorkflowExecution;
 			let parentNode = this.workflow.getParentNodes(this.activeNode.name, inputName, 1);
-			console.log('parentNode', parentNode);
 			let runData = this.workflowsStore.getWorkflowRunData;
 
 			if (runData === null) {

packages/editor-ui/src/components/WorkflowLMChat.vue

@@ -133,13 +133,8 @@ import { get, last } from 'lodash-es';
 
 import { useUIStore, useWorkflowsStore } from '@/stores';
 import { createEventBus } from 'n8n-design-system/utils';
-import {
-	type INode,
-	type INodeType,
-	type ITaskData,
-	NodeHelpers,
-	NodeConnectionType,
-} from 'n8n-workflow';
+import type { IDataObject, INodeType, INode, ITaskData } from 'n8n-workflow';
+import { NodeHelpers, NodeConnectionType } from 'n8n-workflow';
 import type { INodeUi } from '@/Interface';
 
 const RunDataAi = defineAsyncComponent(async () => import('@/components/RunDataAi/RunDataAi.vue'));
@@ -433,6 +428,17 @@ export default defineComponent({
 
 			this.waitForExecution(response.executionId);
 		},
+		extractResponseMessage(responseData?: IDataObject) {
+			if (!responseData) return '<NO RESPONSE FOUND>';
+
+			// Paths where the response message might be located
+			const paths = ['output', 'text', 'response.text'];
+			const matchedPath = paths.find((path) => get(responseData, path));
+
+			if (!matchedPath) return JSON.stringify(responseData, null, 2);
+
+			return get(responseData, matchedPath) as string;
+		},
 		waitForExecution(executionId?: string) {
 			const that = this;
 			const waitInterval = setInterval(() => {
@@ -455,18 +461,7 @@ export default defineComponent({
 						responseMessage = '[ERROR: ' + get(nodeResponseData, ['error', 'message']) + ']';
 					} else {
 						const responseData = get(nodeResponseData, 'data.main[0][0].json');
-						if (responseData) {
-							const responseObj = responseData as object & { output?: string };
-							if (responseObj.output !== undefined) {
-								responseMessage = responseObj.output;
-							} else if (Object.keys(responseObj).length === 0) {
-								responseMessage = '<NO RESPONSE FOUND>';
-							} else {
-								responseMessage = JSON.stringify(responseObj, null, 2);
-							}
-						} else {
-							responseMessage = '<NO RESPONSE FOUND>';
-						}
+						responseMessage = this.extractResponseMessage(responseData);
 					}
 
 					this.messages.push({

packages/editor-ui/src/constants.ts

@@ -168,7 +168,7 @@ export const NON_ACTIVATABLE_TRIGGER_NODE_TYPES = [
 	MANUAL_CHAT_TRIGGER_NODE_TYPE,
 ];
 
-export const NODES_USING_CODE_NODE_EDITOR = [CODE_NODE_TYPE];
+export const NODES_USING_CODE_NODE_EDITOR = [CODE_NODE_TYPE, AI_CODE_NODE_TYPE];
 
 export const PIN_DATA_NODE_TYPES_DENYLIST = [SPLIT_IN_BATCHES_NODE_TYPE];
 

packages/editor-ui/src/mixins/workflowHelpers.ts

@@ -114,22 +114,22 @@ export function resolveParameter(
 	let itemIndex = opts?.targetItem?.itemIndex || 0;
 
 	const inputName = NodeConnectionType.Main;
-	let activeNode = useNDVStore().activeNode;
+	const activeNode = useNDVStore().activeNode;
+	let contextNode = activeNode;
 
 	const workflow = getCurrentWorkflow();
 
-	// Should actually just do that for incoming data and not things like parameters
 	if (activeNode) {
-		activeNode = getParentMainInputNode(workflow, activeNode);
+		contextNode = getParentMainInputNode(workflow, activeNode);
 	}
 
 	const workflowRunData = useWorkflowsStore().getWorkflowRunData;
-	let parentNode = workflow.getParentNodes(activeNode!.name, inputName, 1);
+	let parentNode = workflow.getParentNodes(contextNode!.name, inputName, 1);
 	const executionData = useWorkflowsStore().getWorkflowExecution;
 
 	let runIndexParent = opts?.inputRunIndex ?? 0;
-	const nodeConnection = workflow.getNodeConnectionIndexes(activeNode!.name, parentNode[0]);
-	if (opts.targetItem && opts?.targetItem?.nodeName === activeNode!.name && executionData) {
+	const nodeConnection = workflow.getNodeConnectionIndexes(contextNode!.name, parentNode[0]);
+	if (opts.targetItem && opts?.targetItem?.nodeName === contextNode!.name && executionData) {
 		const sourceItems = getSourceItems(executionData, opts.targetItem);
 		if (!sourceItems.length) {
 			return null;
@@ -158,7 +158,7 @@ export function resolveParameter(
 
 	let _connectionInputData = connectionInputData(
 		parentNode,
-		activeNode!.name,
+		contextNode!.name,
 		inputName,
 		runIndexParent,
 		nodeConnection,
@@ -198,11 +198,11 @@ export function resolveParameter(
 	if (
 		opts?.targetItem === undefined &&
 		workflowRunData !== null &&
-		workflowRunData[activeNode!.name]
+		workflowRunData[contextNode!.name]
 	) {
-		runIndexCurrent = workflowRunData[activeNode!.name].length - 1;
+		runIndexCurrent = workflowRunData[contextNode!.name].length - 1;
 	}
-	const _executeData = executeData(parentNode, activeNode!.name, inputName, runIndexCurrent);
+	const _executeData = executeData(parentNode, contextNode!.name, inputName, runIndexCurrent);
 
 	ExpressionEvaluatorProxy.setEvaluator(
 		useSettingsStore().settings.expressions?.evaluator ?? 'tmpl',
@@ -220,6 +220,8 @@ export function resolveParameter(
 		additionalKeys,
 		_executeData,
 		false,
+		{},
+		contextNode!.name,
 	) as IDataObject;
 }
 

packages/editor-ui/src/views/NodeView.vue

@@ -2211,6 +2211,7 @@ export default defineComponent({
 			if (lastSelectedNodeEndpointUuid && !isAutoAdd) {
 				const lastSelectedEndpoint = this.instance.getEndpoint(lastSelectedNodeEndpointUuid);
 				if (
+					lastSelectedEndpoint &&
 					this.checkNodeConnectionAllowed(
 						lastSelectedNode!,
 						newNodeData,
@@ -2382,7 +2383,14 @@ export default defineComponent({
 			);
 
 			if (targetNodeType?.inputs?.length) {
-				for (const input of targetNodeType?.inputs || []) {
+				const workflow = this.getCurrentWorkflow();
+				const workflowNode = workflow.getNode(targetNode.name);
+				let inputs: Array<ConnectionTypes | INodeInputConfiguration> = [];
+				if (targetNodeType) {
+					inputs = NodeHelpers.getNodeInputs(workflow, workflowNode!, targetNodeType);
+				}
+
+				for (const input of inputs || []) {
 					if (typeof input === 'string' || input.type !== targetInfoType || !input.filter) {
 						// No filters defined or wrong connection type
 						continue;
@@ -3356,7 +3364,6 @@ export default defineComponent({
 				nodeConnections || [],
 				(connectionType as ConnectionTypes) ?? NodeConnectionType.Main,
 			);
-
 			Object.keys(outputMap).forEach((sourceOutputIndex: string) => {
 				Object.keys(outputMap[sourceOutputIndex]).forEach((targetNodeName: string) => {
 					Object.keys(outputMap[sourceOutputIndex][targetNodeName]).forEach(

packages/workflow/src/Interfaces.ts

@@ -773,7 +773,6 @@ export type IExecuteFunctions = ExecuteFunctions.GetNodeParameterFn &
 			inputName: ConnectionTypes,
 			itemIndex: number,
 			inputIndex?: number,
-			nodeNameOverride?: string,
 		): Promise<unknown>;
 		getInputData(inputIndex?: number, inputName?: string): INodeExecutionData[];
 		getNodeOutputs(): INodeOutputConfiguration[];
@@ -1290,7 +1289,7 @@ export interface SupplyData {
 
 export interface INodeType {
 	description: INodeTypeDescription;
-	supplyData?(this: IExecuteFunctions): Promise<SupplyData>;
+	supplyData?(this: IExecuteFunctions, itemIndex: number): Promise<SupplyData>;
 	execute?(
 		this: IExecuteFunctions,
 	): Promise<INodeExecutionData[][] | NodeExecutionWithMetadata[][] | null>;
@@ -1534,8 +1533,6 @@ export const enum NodeConnectionType {
 	// eslint-disable-next-line @typescript-eslint/naming-convention
 	AiTool = 'ai_tool',
 	// eslint-disable-next-line @typescript-eslint/naming-convention
-	AiVectorRetriever = 'ai_vectorRetriever',
-	// eslint-disable-next-line @typescript-eslint/naming-convention
 	AiVectorStore = 'ai_vectorStore',
 	// eslint-disable-next-line @typescript-eslint/naming-convention
 	Main = 'main',