import * as fs from "fs"; const clientId = "####-####-####-####-####"; const secret = "##################"; const wordsApi = new WordsApi(clientId, secret); const requestDocument = fs.createReadStream("Sample.docx"); const request = new model.GetRunFontOnlineRequest({ document: requestDocument, paragraphPath: "paragraphs/0", index: 0 }); wordsApi.getRunFontOnline(request) .then((requestResult) => { // tslint:disable-next-line:no-console console.log("Result of request: ", requestResult); });