n8n/packages/nodes-base/nodes/Stackby/Stackby.node.ts

import { IExecuteFunctions } from 'n8n-core';

import {
	IDataObject,
	INodeExecutionData,
	INodeType,
	INodeTypeDescription,
	NodeOperationError,
} from 'n8n-workflow';

import { apiRequest, apiRequestAllItems, IRecord } from './GenericFunction';

export class Stackby implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'Stackby',
		name: 'stackby',
		// eslint-disable-next-line n8n-nodes-base/node-class-description-icon-not-svg
		icon: 'file:stackby.png',
		group: ['transform'],
		version: 1,
		description: 'Read, write, and delete data in Stackby',
		defaults: {
			name: 'Stackby',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			{
				name: 'stackbyApi',
				required: true,
			},
		],
		properties: [
			{
				displayName: 'Operation',
				name: 'operation',
				type: 'options',
				noDataExpression: true,
				options: [
					{
						name: 'Append',
						value: 'append',
					},
					{
						name: 'Delete',
						value: 'delete',
					},
					{
						name: 'List',
						value: 'list',
					},
					{
						name: 'Read',
						value: 'read',
					},
				],
				default: 'append',
				placeholder: 'Action to perform',
			},
			// ----------------------------------
			//         All
			// ----------------------------------
			{
				displayName: 'Stack ID',
				name: 'stackId',
				type: 'string',
				default: '',
				required: true,
				description: 'The ID of the stack to access',
			},
			{
				displayName: 'Table',
				name: 'table',
				type: 'string',
				default: '',
				placeholder: 'Stories',
				required: true,
				description: 'Enter Table Name',
			},

			// ----------------------------------
			//         read
			// ----------------------------------
			{
				displayName: 'ID',
				name: 'id',
				type: 'string',
				displayOptions: {
					show: {
						operation: ['read', 'delete'],
					},
				},
				default: '',
				required: true,
				description: 'ID of the record to return',
			},

			// ----------------------------------
			//         list
			// ----------------------------------
			{
				displayName: 'Return All',
				name: 'returnAll',
				type: 'boolean',
				displayOptions: {
					show: {
						operation: ['list'],
					},
				},
				default: true,
				description: 'Whether to return all results or only up to a given limit',
			},
			{
				displayName: 'Limit',
				name: 'limit',
				type: 'number',
				displayOptions: {
					show: {
						operation: ['list'],
						returnAll: [false],
					},
				},
				typeOptions: {
					minValue: 1,
					maxValue: 1000,
				},
				default: 1000,
				description: 'Max number of results to return',
			},
			{
				displayName: 'Additional Fields',
				name: 'additionalFields',
				type: 'collection',
				displayOptions: {
					show: {
						operation: ['list'],
					},
				},
				default: {},
				placeholder: 'Add Field',
				options: [
					{
						displayName: 'View',
						name: 'view',
						type: 'string',
						default: '',
						placeholder: 'All Stories',
						description:
							'The name or ID of a view in the Stories table. If set, only the records in that view will be returned. The records will be sorted according to the order of the view.',
					},
				],
			},
			// ----------------------------------
			//         append
			// ----------------------------------
			{
				displayName: 'Columns',
				name: 'columns',
				type: 'string',
				displayOptions: {
					show: {
						operation: ['append'],
					},
				},
				default: '',
				required: true,
				placeholder: 'id,name,description',
				description:
					'Comma-separated list of the properties which should used as columns for the new rows',
			},
		],
	};

	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
		const items = this.getInputData();
		const returnData: INodeExecutionData[] = [];
		const length = items.length;
		let responseData;
		const qs: IDataObject = {};
		const operation = this.getNodeParameter('operation', 0);
		if (operation === 'read') {
			for (let i = 0; i < length; i++) {
				try {
					const stackId = this.getNodeParameter('stackId', i) as string;
					const table = encodeURI(this.getNodeParameter('table', i) as string);
					const rowIds = this.getNodeParameter('id', i) as string;
					qs.rowIds = [rowIds];
					responseData = await apiRequest.call(this, 'GET', `/rowlist/${stackId}/${table}`, {}, qs);
					returnData.push.apply(
						returnData,

						responseData.map((data: any) => data.field),
					);
				} catch (error) {
					if (this.continueOnFail()) {
						const executionErrorData = this.helpers.constructExecutionMetaData(
							this.helpers.returnJsonArray({ error: error.message }),
							{ itemData: { item: i } },
						);
						returnData.push(...executionErrorData);
						continue;
					}
					throw error;
				}
			}
		}
		if (operation === 'delete') {
			for (let i = 0; i < length; i++) {
				try {
					const stackId = this.getNodeParameter('stackId', i) as string;
					const table = encodeURI(this.getNodeParameter('table', i) as string);
					const rowIds = this.getNodeParameter('id', i) as string;
					qs.rowIds = [rowIds];

					responseData = await apiRequest.call(
						this,
						'DELETE',
						`/rowdelete/${stackId}/${table}`,
						{},
						qs,
					);
					responseData = responseData.records;

					const executionData = this.helpers.constructExecutionMetaData(
						this.helpers.returnJsonArray(responseData),
						{ itemData: { item: i } },
					);

					returnData.push(...executionData);
				} catch (error) {
					if (this.continueOnFail()) {
						const executionErrorData = this.helpers.constructExecutionMetaData(
							this.helpers.returnJsonArray({ error: error.message }),
							{ itemData: { item: i } },
						);
						returnData.push(...executionErrorData);
						continue;
					}
					throw error;
				}
			}
		}

		if (operation === 'append') {
			try {
				const records: { [key: string]: IRecord[] } = {};
				let key = '';
				for (let i = 0; i < length; i++) {
					const stackId = this.getNodeParameter('stackId', i) as string;
					const table = encodeURI(this.getNodeParameter('table', i) as string);
					const columns = this.getNodeParameter('columns', i) as string;
					const columnList = columns.split(',').map((column) => column.trim());

					const record: { [key: string]: any } = {};
					for (const column of columnList) {
						if (items[i].json[column] === undefined) {
							throw new NodeOperationError(
								this.getNode(),
								`Column ${column} does not exist on input`,
								{ itemIndex: i },
							);
						} else {
							record[column] = items[i].json[column];
						}
					}
					key = `${stackId}/${table}`;

					if (records[key] === undefined) {
						records[key] = [];
					}
					records[key].push({ field: record });
				}

				for (const recordKey of Object.keys(records)) {
					responseData = await apiRequest.call(this, 'POST', `/rowcreate/${recordKey}`, {
						records: records[recordKey],
					});
				}

				returnData.push.apply(
					returnData,

					responseData.map((data: any) => data.field),
				);
			} catch (error) {
				if (this.continueOnFail()) {
					const executionErrorData = this.helpers.constructExecutionMetaData(
						this.helpers.returnJsonArray({ error: error.message }),
						{ itemData: { item: 0 } },
					);
					returnData.push(...executionErrorData);
				} else {
					throw error;
				}
			}
		}

		if (operation === 'list') {
			for (let i = 0; i < length; i++) {
				try {
					const stackId = this.getNodeParameter('stackId', i) as string;
					const table = encodeURI(this.getNodeParameter('table', i) as string);
					const returnAll = this.getNodeParameter('returnAll', 0);

					const additionalFields = this.getNodeParameter('additionalFields', i, {});

					if (additionalFields.view) {
						qs.view = additionalFields.view;
					}

					if (returnAll) {
						responseData = await apiRequestAllItems.call(
							this,
							'GET',
							`/rowlist/${stackId}/${table}`,
							{},
							qs,
						);
					} else {
						qs.maxrecord = this.getNodeParameter('limit', 0);
						responseData = await apiRequest.call(
							this,
							'GET',
							`/rowlist/${stackId}/${table}`,
							{},
							qs,
						);
					}

					returnData.push.apply(
						returnData,

						responseData.map((data: any) => data.field),
					);
				} catch (error) {
					if (this.continueOnFail()) {
						const executionErrorData = this.helpers.constructExecutionMetaData(
							this.helpers.returnJsonArray({ error: error.message }),
							{ itemData: { item: i } },
						);
						returnData.push(...executionErrorData);
						continue;
					}
					throw error;
				}
			}
		}
		return this.prepareOutputData(returnData);
	}
}