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

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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.png',
group: ['output'],
version: 1,
description: 'Consume CoinGecko API',
subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
defaults: {
name: 'CoinGecko',
color: '#8bc53f',
},
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<INodePropertyOptions[]> {
const returnData: INodePropertyOptions[] = [];
const currencies = await coinGeckoApiRequest.call(
this,
'GET',
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'/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<INodePropertyOptions[]> {
const returnData: INodePropertyOptions[] = [];
const coins = await coinGeckoApiRequest.call(
this,
'GET',
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'/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<INodePropertyOptions[]> {
const returnData: INodePropertyOptions[] = [];
const exchanges = await coinGeckoApiRequest.call(
this,
'GET',
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'/exchanges/list',
);
for (const exchange of exchanges) {
returnData.push({
name: exchange.name,
value: exchange.id,
});
}
return returnData;
},
async getEventCountryCodes(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
const returnData: INodePropertyOptions[] = [];
const countryCodes = await coinGeckoApiRequest.call(
this,
'GET',
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'/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<INodePropertyOptions[]> {
const returnData: INodePropertyOptions[] = [];
const eventTypes = await coinGeckoApiRequest.call(
this,
'GET',
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'/events/types',
);
for (const type of eventTypes.data) {
returnData.push({
name: type,
value: type,
});
}
return returnData;
},
},
};
async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
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++) {
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}`,
{},
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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}`,
{},
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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',
{},
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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;
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const baseCurrency = this.getNodeParameter('baseCurrency', i) as string;
const options = this.getNodeParameter('options', i) as IDataObject;
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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`,
{},
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qs,
);
} else {
const limit = this.getNodeParameter('limit', i) as number;
qs.per_page = limit;
responseData = await coinGeckoApiRequest.call(
this,
'GET',
`/coins/markets`,
{},
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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;
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const quoteCurrencies = this.getNodeParameter('quoteCurrencies', i) as string[];
const options = this.getNodeParameter('options', i) as IDataObject;
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qs.vs_currencies = quoteCurrencies.join(',');
Object.assign(qs, options);
if (searchBy === 'coinId') {
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const baseCurrencies = this.getNodeParameter('baseCurrencies', i) as string[];
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qs.ids = baseCurrencies.join(',');
responseData = await coinGeckoApiRequest.call(
this,
'GET',
'/simple/price',
{},
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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/${platformId}`,
{},
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qs,
);
}
}
//https://www.coingecko.com/api/documentations/v3#/coins/get_coins__id__tickers
if (operation === 'ticker') {
const returnAll = this.getNodeParameter('returnAll', i) as boolean;
const coinId = this.getNodeParameter('coinId', i) as string;
const options = this.getNodeParameter('options', i) as IDataObject;
Object.assign(qs, options);
if (options.exchange_ids) {
qs.exchange_ids = (options.exchange_ids as string[]).join(',');
}
if (returnAll) {
responseData = await coinGeckoRequestAllItems.call(
this,
'tickers',
'GET',
`/coins/${coinId}/tickers`,
{},
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qs,
);
} else {
const limit = this.getNodeParameter('limit', i) as number;
responseData = await coinGeckoApiRequest.call(
this,
'GET',
`/coins/${coinId}/tickers`,
{},
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qs,
);
responseData = responseData.tickers;
responseData = responseData.splice(0, limit);
}
}
//https://www.coingecko.com/api/documentations/v3#/coins/get_coins__id__history
if (operation === 'history') {
const coinId = this.getNodeParameter('coinId', i) as string;
const date = this.getNodeParameter('date', i) as string;
const options = this.getNodeParameter('options', i) as IDataObject;
Object.assign(qs, options);
qs.date = moment(date).format('DD-MM-YYYY');
responseData = await coinGeckoApiRequest.call(
this,
'GET',
`/coins/${coinId}/history`,
{},
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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/${coinId}/market_chart`,
{},
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qs,
);
}
if (searchBy === 'contractAddress') {
const platformId = this.getNodeParameter('platformId', i) as string;
const contractAddress = this.getNodeParameter('contractAddress', i) as string;
respData = await coinGeckoApiRequest.call(
this,
'GET',
`/coins/${platformId}/contract/${contractAddress}/market_chart`,
{},
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qs,
);
}
responseData = [];
for (let idx = 0; idx < respData.prices.length; idx++) {
const [time, price] = respData.prices[idx];
const marketCaps = respData.market_caps[idx][1];
const totalVolume = respData.total_volumes[idx][1];
responseData.push({ time: moment(time).toISOString(), price, marketCaps, totalVolume } as IDataObject);
}
}
//https://www.coingecko.com/api/documentations/v3#/coins/get_coins__id__ohlc
if (operation === 'candlestick') {
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const baseCurrency = this.getNodeParameter('baseCurrency', i) as string;
const quoteCurrency = this.getNodeParameter('quoteCurrency', i) as string;
const days = this.getNodeParameter('days', i) as string;
qs.vs_currency = quoteCurrency;
qs.days = days;
responseData = await coinGeckoApiRequest.call(
this,
'GET',
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`/coins/${baseCurrency}/ohlc`,
{},
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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',
{},
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qs,
);
} else {
const limit = this.getNodeParameter('limit', i) as number;
qs.per_page = limit;
responseData = await coinGeckoApiRequest.call(
this,
'GET',
'/events',
{},
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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',
{},
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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}`,
{},
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qs,
);
}
}
}
if (Array.isArray(responseData)) {
returnData.push.apply(returnData, responseData as IDataObject[]);
} else if (responseData !== undefined) {
returnData.push(responseData as IDataObject);
}
return [this.helpers.returnJsonArray(returnData)];
}
}