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

import {
	OptionsWithUri,
} from 'request';

import {
	IExecuteFunctions,
	IExecuteSingleFunctions,
	ILoadOptionsFunctions,
} from 'n8n-core';

import {
	IDataObject,
} from 'n8n-workflow';

export async function coinGeckoApiRequest(this: IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions, method: string,
	endpoint: string, body: any = {}, qs: IDataObject = {}, uri?: string, option: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
	let options: OptionsWithUri = {
		headers: {
			'Accept': 'application/json',
			'Content-Type': 'application/json',
		},
		method,
		body,
		qs,
		uri: uri || `https://api.coingecko.com/api/v3${endpoint}`,
		json: true,
	};

	options = Object.assign({}, options, option);

	try {
		if (Object.keys(body).length === 0) {
			delete options.body;
		}

		//@ts-ignore
		return await this.helpers.request.call(this, options);

	} catch (error) {

		throw error;
	}
}

export async function coinGeckoRequestAllItems(this: IExecuteFunctions | ILoadOptionsFunctions, propertyName: string, method: string, endpoint: string, body: any = {}, query: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any

	const returnData: IDataObject[] = [];

	let responseData;
	let respData;
	query.per_page = 250;
	query.page = 1;

	do {
		responseData = await coinGeckoApiRequest.call(this, method, endpoint, body, query);
		query.page++;
		respData = responseData;
		if (propertyName !== '') {
			respData = responseData[propertyName];
		}
		returnData.push.apply(returnData, respData);
	} while (
		respData.length !== 0
	);

	return returnData;
}