import type { IExecuteFunctions } from 'n8n-core'; import type { IDataObject, INodeExecutionData, INodeType, INodeTypeDescription, } from 'n8n-workflow'; import { NodeApiError, NodeOperationError } from 'n8n-workflow'; import type { OptionsWithUri } from 'request'; export class OpenWeatherMap implements INodeType { description: INodeTypeDescription = { displayName: 'OpenWeatherMap', name: 'openWeatherMap', icon: 'fa:sun', group: ['input'], version: 1, description: 'Gets current and future weather information', defaults: { name: 'OpenWeatherMap', color: '#554455', }, inputs: ['main'], outputs: ['main'], credentials: [ { name: 'openWeatherMapApi', required: true, }, ], properties: [ { displayName: 'Operation', name: 'operation', type: 'options', noDataExpression: true, options: [ { name: 'Current Weather', value: 'currentWeather', description: 'Returns the current weather data', action: 'Return current weather data', }, { name: '5 Day Forecast', value: '5DayForecast', description: 'Returns the weather data for the next 5 days', action: 'Return weather data for the next 5 days', }, ], default: 'currentWeather', }, { displayName: 'Format', name: 'format', type: 'options', options: [ { name: 'Imperial', value: 'imperial', description: 'Fahrenheit | miles/hour', }, { name: 'Metric', value: 'metric', description: 'Celsius | meter/sec', }, { name: 'Scientific', value: 'standard', description: 'Kelvin | meter/sec', }, ], default: 'metric', description: 'The format in which format the data should be returned', }, // ---------------------------------- // Location Information // ---------------------------------- { displayName: 'Location Selection', name: 'locationSelection', type: 'options', options: [ { name: 'City Name', value: 'cityName', }, { name: 'City ID', value: 'cityId', }, { name: 'Coordinates', value: 'coordinates', }, { name: 'Zip Code', value: 'zipCode', }, ], default: 'cityName', description: 'How to define the location for which to return the weather', }, { displayName: 'City', name: 'cityName', type: 'string', default: '', placeholder: 'berlin,de', required: true, displayOptions: { show: { locationSelection: ['cityName'], }, }, description: 'The name of the city to return the weather of', }, { displayName: 'City ID', name: 'cityId', type: 'number', default: 160001123, required: true, displayOptions: { show: { locationSelection: ['cityId'], }, }, description: 'The ID of city to return the weather of. List can be downloaded here: http://bulk.openweathermap.org/sample/.', }, { displayName: 'Latitude', name: 'latitude', type: 'string', default: '', placeholder: '13.39', required: true, displayOptions: { show: { locationSelection: ['coordinates'], }, }, description: 'The latitude of the location to return the weather of', }, { displayName: 'Longitude', name: 'longitude', type: 'string', default: '', placeholder: '52.52', required: true, displayOptions: { show: { locationSelection: ['coordinates'], }, }, description: 'The longitude of the location to return the weather of', }, { displayName: 'Zip Code', name: 'zipCode', type: 'string', default: '', placeholder: '10115,de', required: true, displayOptions: { show: { locationSelection: ['zipCode'], }, }, description: 'The ID of city to return the weather of. List can be downloaded here: http://bulk.openweathermap.org/sample/.', }, { displayName: 'Language', name: 'language', type: 'string', default: '', placeholder: 'en', description: 'The two letter language code to get your output in (eg. en, de, ...).', }, ], }; async execute(this: IExecuteFunctions): Promise { const items = this.getInputData(); const returnData: INodeExecutionData[] = []; const credentials = await this.getCredentials('openWeatherMapApi'); const operation = this.getNodeParameter('operation', 0); let endpoint = ''; let locationSelection; let language; let qs: IDataObject; for (let i = 0; i < items.length; i++) { try { // Set base data qs = { APPID: credentials.accessToken, units: this.getNodeParameter('format', i) as string, }; // Get the location locationSelection = this.getNodeParameter('locationSelection', i) as string; if (locationSelection === 'cityName') { qs.q = this.getNodeParameter('cityName', i) as string; } else if (locationSelection === 'cityId') { qs.id = this.getNodeParameter('cityId', i) as number; } else if (locationSelection === 'coordinates') { qs.lat = this.getNodeParameter('latitude', i) as string; qs.lon = this.getNodeParameter('longitude', i) as string; } else if (locationSelection === 'zipCode') { qs.zip = this.getNodeParameter('zipCode', i) as string; } else { throw new NodeOperationError( this.getNode(), `The locationSelection "${locationSelection}" is not known!`, { itemIndex: i }, ); } // Get the language language = this.getNodeParameter('language', i) as string; if (language) { qs.lang = language; } if (operation === 'currentWeather') { // ---------------------------------- // currentWeather // ---------------------------------- endpoint = 'weather'; } else if (operation === '5DayForecast') { // ---------------------------------- // 5DayForecast // ---------------------------------- endpoint = 'forecast'; } else { throw new NodeOperationError( this.getNode(), `The operation "${operation}" is not known!`, { itemIndex: i }, ); } const options: OptionsWithUri = { method: 'GET', qs, uri: `https://api.openweathermap.org/data/2.5/${endpoint}`, json: true, }; let responseData; try { responseData = await this.helpers.request(options); } catch (error) { throw new NodeApiError(this.getNode(), error); } const executionData = this.helpers.constructExecutionMetaData( this.helpers.returnJsonArray(responseData), { itemData: { item: i } }, ); returnData.push(...executionData); } catch (error) { if (this.continueOnFail()) { returnData.push({ json: { error: error.message } }); continue; } throw error; } } return this.prepareOutputData(returnData); } }