import { IExecuteFunctions, } from 'n8n-core'; import { IDataObject, ILoadOptionsFunctions, INodeExecutionData, INodePropertyOptions, INodeType, INodeTypeDescription, } from 'n8n-workflow'; import { coinFields, coinOperations, } from './CoinDescription'; import { eventFields, eventOperations, } from './EventDescription'; import { coinGeckoApiRequest, coinGeckoRequestAllItems, } from './GenericFunctions'; import * as moment from 'moment-timezone'; export class CoinGecko implements INodeType { description: INodeTypeDescription = { displayName: 'CoinGecko', name: 'coinGecko', icon: 'file:coinGecko.svg', group: ['output'], version: 1, description: 'Consume CoinGecko API', subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}', defaults: { name: 'CoinGecko', }, inputs: ['main'], outputs: ['main'], properties: [ { displayName: 'Resource', name: 'resource', type: 'options', options: [ { name: 'Coin', value: 'coin', }, { name: 'Event', value: 'event', }, ], default: 'coin', }, ...coinOperations, ...coinFields, ...eventOperations, ...eventFields, ], }; methods = { loadOptions: { async getCurrencies(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = []; const currencies = await coinGeckoApiRequest.call( this, 'GET', '/simple/supported_vs_currencies', ); currencies.sort(); for (const currency of currencies) { returnData.push({ name: currency.toUpperCase(), value: currency, }); } return returnData; }, async getCoins(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = []; const coins = await coinGeckoApiRequest.call( this, 'GET', '/coins/list', ); for (const coin of coins) { returnData.push({ name: coin.symbol.toUpperCase(), value: coin.id, }); } returnData.sort((a, b) => { if (a.name < b.name) { return -1; } if (a.name > b.name) { return 1; } return 0; }); return returnData; }, async getExchanges(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = []; const exchanges = await coinGeckoApiRequest.call( this, 'GET', '/exchanges/list', ); for (const exchange of exchanges) { returnData.push({ name: exchange.name, value: exchange.id, }); } return returnData; }, async getEventCountryCodes(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = []; const countryCodes = await coinGeckoApiRequest.call( this, 'GET', '/events/countries', ); for (const code of countryCodes.data) { if (!code.code) { continue; } returnData.push({ name: code.country, value: code.code, }); } return returnData; }, async getEventTypes(this: ILoadOptionsFunctions): Promise { const returnData: INodePropertyOptions[] = []; const eventTypes = await coinGeckoApiRequest.call( this, 'GET', '/events/types', ); for (const type of eventTypes.data) { returnData.push({ name: type, value: type, }); } return returnData; }, }, }; async execute(this: IExecuteFunctions): Promise { const items = this.getInputData(); const returnData: IDataObject[] = []; const length = (items.length as unknown) as number; const qs: IDataObject = {}; let responseData; const resource = this.getNodeParameter('resource', 0) as string; const operation = this.getNodeParameter('operation', 0) as string; for (let i = 0; i < length; i++) { try { if (resource === 'coin') { //https://www.coingecko.com/api/documentations/v3#/coins/get_coins__id_ //https://www.coingecko.com/api/documentations/v3#/contract/get_coins__id__contract__contract_address_ if (operation === 'get') { const options = this.getNodeParameter('options', i) as IDataObject; qs.community_data = false; qs.developer_data = false; qs.localization = false; qs.market_data = false; qs.sparkline = false; qs.tickers = false; Object.assign(qs, options); const searchBy = this.getNodeParameter('searchBy', i) as string; if (searchBy === 'coinId') { const coinId = this.getNodeParameter('coinId', i) as string; responseData = await coinGeckoApiRequest.call( this, 'GET', `/coins/${coinId}`, {}, qs, ); } if (searchBy === 'contractAddress') { const platformId = this.getNodeParameter('platformId', i) as string; const contractAddress = this.getNodeParameter('contractAddress', i) as string; responseData = await coinGeckoApiRequest.call( this, 'GET', `/coins/${platformId}/contract/${contractAddress}`, {}, qs, ); } } //https://www.coingecko.com/api/documentations/v3#/coins/get_coins_list if (operation === 'getAll') { const returnAll = this.getNodeParameter('returnAll', i) as boolean; let limit; responseData = await coinGeckoApiRequest.call( this, 'GET', '/coins/list', {}, qs, ); if (returnAll === false) { limit = this.getNodeParameter('limit', i) as number; responseData = responseData.splice(0, limit); } } //https://www.coingecko.com/api/documentations/v3#/coins/get_coins_list if (operation === 'market') { const returnAll = this.getNodeParameter('returnAll', i) as boolean; const baseCurrency = this.getNodeParameter('baseCurrency', i) as string; const options = this.getNodeParameter('options', i) as IDataObject; qs.vs_currency = baseCurrency; Object.assign(qs, options); if (options.price_change_percentage) { qs.price_change_percentage = (options.price_change_percentage as string[]).join(','); } if (returnAll) { responseData = await coinGeckoRequestAllItems.call( this, '', 'GET', `/coins/markets`, {}, qs, ); } else { const limit = this.getNodeParameter('limit', i) as number; qs.per_page = limit; responseData = await coinGeckoApiRequest.call( this, 'GET', `/coins/markets`, {}, qs, ); } } //https://www.coingecko.com/api/documentations/v3#/simple/get_simple_price //https://www.coingecko.com/api/documentations/v3#/simple/get_simple_token_price__id_ if (operation === 'price') { const searchBy = this.getNodeParameter('searchBy', i) as string; const quoteCurrencies = this.getNodeParameter('quoteCurrencies', i) as string[]; const options = this.getNodeParameter('options', i) as IDataObject; qs.vs_currencies = quoteCurrencies.join(','); Object.assign(qs, options); if (searchBy === 'coinId') { const baseCurrencies = this.getNodeParameter('baseCurrencies', i) as string[]; qs.ids = baseCurrencies.join(','); responseData = await coinGeckoApiRequest.call( this, 'GET', '/simple/price', {}, qs, ); } if (searchBy === 'contractAddress') { const platformId = this.getNodeParameter('platformId', i) as string; const contractAddresses = this.getNodeParameter('contractAddresses', i) as string; qs.contract_addresses = contractAddresses; responseData = await coinGeckoApiRequest.call( this, 'GET', `/simple/token_price/${platformId}`, {}, qs, ); } } //https://www.coingecko.com/api/documentations/v3#/coins/get_coins__id__tickers if (operation === 'ticker') { const returnAll = this.getNodeParameter('returnAll', i) as boolean; const coinId = this.getNodeParameter('coinId', i) as string; const options = this.getNodeParameter('options', i) as IDataObject; Object.assign(qs, options); if (options.exchange_ids) { qs.exchange_ids = (options.exchange_ids as string[]).join(','); } if (returnAll) { responseData = await coinGeckoRequestAllItems.call( this, 'tickers', 'GET', `/coins/${coinId}/tickers`, {}, qs, ); } else { const limit = this.getNodeParameter('limit', i) as number; responseData = await coinGeckoApiRequest.call( this, 'GET', `/coins/${coinId}/tickers`, {}, qs, ); responseData = responseData.tickers; responseData = responseData.splice(0, limit); } } //https://www.coingecko.com/api/documentations/v3#/coins/get_coins__id__history if (operation === 'history') { const coinId = this.getNodeParameter('coinId', i) as string; const date = this.getNodeParameter('date', i) as string; const options = this.getNodeParameter('options', i) as IDataObject; Object.assign(qs, options); qs.date = moment(date).format('DD-MM-YYYY'); responseData = await coinGeckoApiRequest.call( this, 'GET', `/coins/${coinId}/history`, {}, qs, ); } //https://www.coingecko.com/api/documentations/v3#/coins/get_coins__id__market_chart //https://www.coingecko.com/api/documentations/v3#/contract/get_coins__id__contract__contract_address__market_chart_ if (operation === 'marketChart') { let respData; const searchBy = this.getNodeParameter('searchBy', i) as string; const quoteCurrency = this.getNodeParameter('quoteCurrency', i) as string; const days = this.getNodeParameter('days', i) as string; qs.vs_currency = quoteCurrency; qs.days = days; if (searchBy === 'coinId') { const coinId = this.getNodeParameter('baseCurrency', i) as string; respData = await coinGeckoApiRequest.call( this, 'GET', `/coins/${coinId}/market_chart`, {}, qs, ); } if (searchBy === 'contractAddress') { const platformId = this.getNodeParameter('platformId', i) as string; const contractAddress = this.getNodeParameter('contractAddress', i) as string; respData = await coinGeckoApiRequest.call( this, 'GET', `/coins/${platformId}/contract/${contractAddress}/market_chart`, {}, qs, ); } responseData = []; for (let idx = 0; idx < respData.prices.length; idx++) { const [time, price] = respData.prices[idx]; const marketCaps = respData.market_caps[idx][1]; const totalVolume = respData.total_volumes[idx][1]; responseData.push({ time: moment(time).toISOString(), price, marketCaps, totalVolume } as IDataObject); } } //https://www.coingecko.com/api/documentations/v3#/coins/get_coins__id__ohlc if (operation === 'candlestick') { const baseCurrency = this.getNodeParameter('baseCurrency', i) as string; const quoteCurrency = this.getNodeParameter('quoteCurrency', i) as string; const days = this.getNodeParameter('days', i) as string; qs.vs_currency = quoteCurrency; qs.days = days; responseData = await coinGeckoApiRequest.call( this, 'GET', `/coins/${baseCurrency}/ohlc`, {}, qs, ); for (let idx = 0; idx < responseData.length; idx++) { const [time, open, high, low, close] = responseData[idx]; responseData[idx] = { time: moment(time).toISOString(), open, high, low, close } as IDataObject; } } } if (resource === 'event') { //https://www.coingecko.com/api/documentations/v3#/events/get_events if (operation === 'getAll') { const returnAll = this.getNodeParameter('returnAll', i) as boolean; const options = this.getNodeParameter('options', i) as IDataObject; Object.assign(qs, options); if (returnAll) { responseData = await coinGeckoRequestAllItems.call( this, 'data', 'GET', '/events', {}, qs, ); } else { const limit = this.getNodeParameter('limit', i) as number; qs.per_page = limit; responseData = await coinGeckoApiRequest.call( this, 'GET', '/events', {}, qs, ); responseData = responseData.data; } } } if (resource === 'simple') { //https://www.coingecko.com/api/documentations/v3#/simple/get_simple_price if (operation === 'price') { const ids = this.getNodeParameter('ids', i) as string; const currencies = this.getNodeParameter('currencies', i) as string[]; const options = this.getNodeParameter('options', i) as IDataObject; qs.ids = ids, qs.vs_currencies = currencies.join(','); Object.assign(qs, options); responseData = await coinGeckoApiRequest.call( this, 'GET', '/simple/price', {}, qs, ); } //https://www.coingecko.com/api/documentations/v3#/simple/get_simple_token_price__id_ if (operation === 'tokenPrice') { const id = this.getNodeParameter('id', i) as string; const contractAddresses = this.getNodeParameter('contractAddresses', i) as string; const currencies = this.getNodeParameter('currencies', i) as string[]; const options = this.getNodeParameter('options', i) as IDataObject; qs.contract_addresses = contractAddresses; qs.vs_currencies = currencies.join(','); Object.assign(qs, options); responseData = await coinGeckoApiRequest.call( this, 'GET', `/simple/token_price/${id}`, {}, qs, ); } } if (Array.isArray(responseData)) { returnData.push.apply(returnData, responseData as IDataObject[]); } else if (responseData !== undefined) { returnData.push(responseData as IDataObject); } } catch (error) { if (this.continueOnFail()) { returnData.push({ error: error.message }); continue; } throw error; } } return [this.helpers.returnJsonArray(returnData)]; } }