n8n/packages/cli/commands/execute.ts
Ahsan Virani 57016624b8
Improve telemetry (#2604)
* add node positions in node graph

* add hover events

* add tag count in save event

* populate properties when default

* fix delete and enable node events

* add node and workflow exec events

* lint

* add node graph

* add node id
2022-01-07 17:14:59 +01:00

213 lines
6.6 KiB
TypeScript

/* eslint-disable @typescript-eslint/no-unsafe-member-access */
/* eslint-disable no-console */
import { promises as fs } from 'fs';
import { Command, flags } from '@oclif/command';
import { BinaryDataManager, IBinaryDataConfig, UserSettings } from 'n8n-core';
import { INode, LoggerProxy } from 'n8n-workflow';
import {
ActiveExecutions,
CredentialsOverwrites,
CredentialTypes,
Db,
ExternalHooks,
GenericHelpers,
InternalHooksManager,
IWorkflowBase,
IWorkflowExecutionDataProcess,
LoadNodesAndCredentials,
NodeTypes,
WorkflowHelpers,
WorkflowRunner,
} from '../src';
import { getLogger } from '../src/Logger';
import config = require('../config');
export class Execute extends Command {
static description = '\nExecutes a given workflow';
static examples = [`$ n8n execute --id=5`, `$ n8n execute --file=workflow.json`];
static flags = {
help: flags.help({ char: 'h' }),
file: flags.string({
description: 'path to a workflow file to execute',
}),
id: flags.string({
description: 'id of the workflow to execute',
}),
rawOutput: flags.boolean({
description: 'Outputs only JSON data, with no other text',
}),
};
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
async run() {
const logger = getLogger();
LoggerProxy.init(logger);
const binaryDataConfig = config.get('binaryDataManager') as IBinaryDataConfig;
await BinaryDataManager.init(binaryDataConfig, true);
// eslint-disable-next-line @typescript-eslint/no-shadow
const { flags } = this.parse(Execute);
// Start directly with the init of the database to improve startup time
const startDbInitPromise = Db.init();
// Load all node and credential types
const loadNodesAndCredentials = LoadNodesAndCredentials();
const loadNodesAndCredentialsPromise = loadNodesAndCredentials.init();
if (!flags.id && !flags.file) {
console.info(`Either option "--id" or "--file" have to be set!`);
return;
}
if (flags.id && flags.file) {
console.info(`Either "id" or "file" can be set never both!`);
return;
}
let workflowId: string | undefined;
let workflowData: IWorkflowBase | undefined;
if (flags.file) {
// Path to workflow is given
try {
// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
workflowData = JSON.parse(await fs.readFile(flags.file, 'utf8'));
} catch (error) {
// eslint-disable-next-line @typescript-eslint/no-unsafe-member-access
if (error.code === 'ENOENT') {
console.info(`The file "${flags.file}" could not be found.`);
return;
}
throw error;
}
// Do a basic check if the data in the file looks right
// TODO: Later check with the help of TypeScript data if it is valid or not
if (
workflowData === undefined ||
workflowData.nodes === undefined ||
workflowData.connections === undefined
) {
console.info(`The file "${flags.file}" does not contain valid workflow data.`);
return;
}
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
workflowId = workflowData.id!.toString();
}
// Wait till the database is ready
await startDbInitPromise;
if (flags.id) {
// Id of workflow is given
workflowId = flags.id;
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
workflowData = await Db.collections.Workflow!.findOne(workflowId);
if (workflowData === undefined) {
console.info(`The workflow with the id "${workflowId}" does not exist.`);
process.exit(1);
}
}
// Make sure the settings exist
await UserSettings.prepareUserSettings();
// Wait till the n8n-packages have been read
await loadNodesAndCredentialsPromise;
// Load the credentials overwrites if any exist
const credentialsOverwrites = CredentialsOverwrites();
await credentialsOverwrites.init();
// Load all external hooks
const externalHooks = ExternalHooks();
await externalHooks.init();
// Add the found types to an instance other parts of the application can use
const nodeTypes = NodeTypes();
await nodeTypes.init(loadNodesAndCredentials.nodeTypes);
const credentialTypes = CredentialTypes();
await credentialTypes.init(loadNodesAndCredentials.credentialTypes);
const instanceId = await UserSettings.getInstanceId();
const { cli } = await GenericHelpers.getVersions();
InternalHooksManager.init(instanceId, cli, nodeTypes);
if (!WorkflowHelpers.isWorkflowIdValid(workflowId)) {
workflowId = undefined;
}
// Check if the workflow contains the required "Start" node
// "requiredNodeTypes" are also defined in editor-ui/views/NodeView.vue
const requiredNodeTypes = ['n8n-nodes-base.start'];
let startNode: INode | undefined;
// eslint-disable-next-line no-restricted-syntax, @typescript-eslint/no-non-null-assertion
for (const node of workflowData!.nodes) {
if (requiredNodeTypes.includes(node.type)) {
startNode = node;
break;
}
}
if (startNode === undefined) {
// If the workflow does not contain a start-node we can not know what
// should be executed and with which data to start.
console.info(`The workflow does not contain a "Start" node. So it can not be executed.`);
// eslint-disable-next-line consistent-return
return Promise.resolve();
}
try {
const runData: IWorkflowExecutionDataProcess = {
executionMode: 'cli',
startNodes: [startNode.name],
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
workflowData: workflowData!,
};
const workflowRunner = new WorkflowRunner();
const executionId = await workflowRunner.run(runData);
const activeExecutions = ActiveExecutions.getInstance();
const data = await activeExecutions.getPostExecutePromise(executionId);
if (data === undefined) {
throw new Error('Workflow did not return any data!');
}
if (data.data.resultData.error) {
console.info('Execution was NOT successful. See log message for details.');
logger.info('Execution error:');
logger.info('====================================');
logger.info(JSON.stringify(data, null, 2));
const { error } = data.data.resultData;
// eslint-disable-next-line @typescript-eslint/no-throw-literal
throw {
...error,
stack: error.stack,
};
}
if (flags.rawOutput === undefined) {
this.log('Execution was successful:');
this.log('====================================');
}
this.log(JSON.stringify(data, null, 2));
} catch (e) {
console.error('Error executing workflow. See log messages for details.');
logger.error('\nExecution error:');
logger.info('====================================');
logger.error(e.message);
logger.error(e.stack);
this.exit(1);
}
this.exit();
}
}