n8n/packages/nodes-base/nodes/ExecuteWorkflow/ExecuteWorkflow.node.ts
कारतोफ्फेलस्क्रिप्ट™ 7a4e9ef5fa
refactor: Remove n8n-core dependency in nodes-base (no-changelog) (#5649)
2023-03-09 18:13:15 +01:00

218 lines
5.3 KiB
TypeScript

import { readFile as fsReadFile } from 'fs/promises';
import type {
IExecuteFunctions,
IExecuteWorkflowInfo,
INodeExecutionData,
INodeType,
INodeTypeDescription,
IWorkflowBase,
} from 'n8n-workflow';
import { NodeOperationError } from 'n8n-workflow';
export class ExecuteWorkflow implements INodeType {
description: INodeTypeDescription = {
displayName: 'Execute Workflow',
name: 'executeWorkflow',
icon: 'fa:sign-in-alt',
group: ['transform'],
version: 1,
subtitle: '={{"Workflow: " + $parameter["workflowId"]}}',
description: 'Execute another workflow',
defaults: {
name: 'Execute Workflow',
color: '#ff6d5a',
},
inputs: ['main'],
outputs: ['main'],
properties: [
{
displayName: 'Operation',
name: 'operation',
type: 'hidden',
noDataExpression: true,
default: 'call_workflow',
options: [
{
name: 'Call Another Workflow',
value: 'call_workflow',
},
],
},
{
displayName: 'Source',
name: 'source',
type: 'options',
options: [
{
name: 'Database',
value: 'database',
description: 'Load the workflow from the database by ID',
},
{
name: 'Local File',
value: 'localFile',
description: 'Load the workflow from a locally saved file',
},
{
name: 'Parameter',
value: 'parameter',
description: 'Load the workflow from a parameter',
},
{
name: 'URL',
value: 'url',
description: 'Load the workflow from an URL',
},
],
default: 'database',
description: 'Where to get the workflow to execute from',
},
// ----------------------------------
// source:database
// ----------------------------------
{
displayName: 'Workflow ID',
name: 'workflowId',
type: 'string',
displayOptions: {
show: {
source: ['database'],
},
},
default: '',
required: true,
description: 'The workflow to execute',
},
// ----------------------------------
// source:localFile
// ----------------------------------
{
displayName: 'Workflow Path',
name: 'workflowPath',
type: 'string',
displayOptions: {
show: {
source: ['localFile'],
},
},
default: '',
placeholder: '/data/workflow.json',
required: true,
description: 'The path to local JSON workflow file to execute',
},
// ----------------------------------
// source:parameter
// ----------------------------------
{
displayName: 'Workflow JSON',
name: 'workflowJson',
type: 'string',
typeOptions: {
editor: 'json',
rows: 10,
},
displayOptions: {
show: {
source: ['parameter'],
},
},
default: '\n\n\n',
required: true,
description: 'The workflow JSON code to execute',
},
// ----------------------------------
// source:url
// ----------------------------------
{
displayName: 'Workflow URL',
name: 'workflowUrl',
type: 'string',
displayOptions: {
show: {
source: ['url'],
},
},
default: '',
placeholder: 'https://example.com/workflow.json',
required: true,
description: 'The URL from which to load the workflow from',
},
{
displayName:
'Any data you pass into this node will be output by the Execute Workflow Trigger. <a href="https://docs.n8n.io/integrations/builtin/core-nodes/n8n-nodes-base.executeworkflow/" target="_blank">More info</a>',
name: 'executeWorkflowNotice',
type: 'notice',
default: '',
},
],
};
async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
const items = this.getInputData();
const source = this.getNodeParameter('source', 0) as string;
const workflowInfo: IExecuteWorkflowInfo = {};
try {
if (source === 'database') {
// Read workflow from database
workflowInfo.id = this.getNodeParameter('workflowId', 0) as string;
} else if (source === 'localFile') {
// Read workflow from filesystem
const workflowPath = this.getNodeParameter('workflowPath', 0) as string;
let workflowJson;
try {
workflowJson = await fsReadFile(workflowPath, { encoding: 'utf8' });
} catch (error) {
if (error.code === 'ENOENT') {
throw new NodeOperationError(
this.getNode(),
`The file "${workflowPath}" could not be found.`,
);
}
throw error;
}
workflowInfo.code = JSON.parse(workflowJson) as IWorkflowBase;
} else if (source === 'parameter') {
// Read workflow from parameter
const workflowJson = this.getNodeParameter('workflowJson', 0) as string;
workflowInfo.code = JSON.parse(workflowJson) as IWorkflowBase;
} else if (source === 'url') {
// Read workflow from url
const workflowUrl = this.getNodeParameter('workflowUrl', 0) as string;
const requestOptions = {
headers: {
accept: 'application/json,text/*;q=0.99',
},
method: 'GET',
uri: workflowUrl,
json: true,
gzip: true,
};
const response = await this.helpers.request(requestOptions);
workflowInfo.code = response;
}
const receivedData = await this.executeWorkflow(workflowInfo, items);
return receivedData;
} catch (error) {
if (this.continueOnFail()) {
return this.prepareOutputData([{ json: { error: error.message } }]);
}
throw error;
}
}
}