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',
		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',
				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: 'If all results should be returned 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: '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: IDataObject[] = [];
		const length = items.length;
		let responseData;
		const qs: IDataObject = {};
		const operation = this.getNodeParameter('operation', 0) as string;
		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);
					// tslint:disable-next-line: no-any
					returnData.push.apply(returnData, responseData.map((data: any) => data.field));
				} catch (error) {
					if (this.continueOnFail()) {
						returnData.push({ error: error.message });
						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;
					returnData.push.apply(returnData, responseData);
				} catch (error) {
					if (this.continueOnFail()) {
						returnData.push({ error: error.message });
						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());

					// tslint:disable-next-line: no-any
					const record: { [key: string]: any } = {};
					for (const column of columnList) {
						if (items[i].json[column] === undefined) {
							throw new NodeOperationError(this.getNode(), `Column ${column} does not exist on input`);
						} else {
							record[column] = items[i].json[column];
						}
					}
					key = `${stackId}/${table}`;

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

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

				// tslint:disable-next-line: no-any
				returnData.push.apply(returnData, responseData.map((data: any) => data.field));
			} catch (error) {
				if (this.continueOnFail()) {
					returnData.push({ error: error.message });
				} 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) as boolean;

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

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

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

					// tslint:disable-next-line: no-any
					returnData.push.apply(returnData, responseData.map((data: any) => data.field));
				} catch (error) {
					if (this.continueOnFail()) {
						returnData.push({ error: error.message });
						continue;
					}
					throw error;
				}
			}
		}
		return [this.helpers.returnJsonArray(returnData)];
	}
}