Naver Papago Translation API via Axios (Axios를 활용한 네이버 파파고 번역 API 예제 )

papago.js

const axios = require('axios');
const qs = require('querystring');

const TRANSLATE_METHODS = {
    nmt: 'nmt',
    smt: 'smt',
};

class Papago {
    constructor(config) {
        this.config = config;
    }

    async lookup(term, { method }) {
        if (this.config == null) {
            throw new Error('Papago instance should be initialized with config first');
        } if (term == null) {
            throw new Error('Search term should be provided as lookup arguments');
        }

        const url = method === TRANSLATE_METHODS.smt ?
            'language/translate' : 'papago/n2mt';

        const params = qs.stringify({
            source: 'ko',
            target: 'en',
            text: term,
        });

        const config = {
            baseURL: 'https://openapi.naver.com/v1/',
            headers: {
                'content-type': 'application/x-www-form-urlencoded; charset=UTF-8',
                'x-naver-client-id': this.config.NAVER_CLIENT_ID,
                'x-naver-client-secret': this.config.NAVER_CLIENT_SECRET,
            },
        };

        const response = await axios.post(url, params, config);

        return response.data.message.result.translatedText;
    }
}


async function main() {
    // NOTE: populate with your own Client id/secret from https://developers.naver.com/apps
    const papago = new Papago({
        NAVER_CLIENT_ID: '',
        NAVER_CLIENT_SECRET: '',
    });

    const nmtResult = await papago.lookup('안녕, 우람. 반가워.', { method: 'nmt' });
    console.log('[nmt]', nmtResult);

    const smtResult = await papago.lookup('안녕, 우람. 반가워.', { method: 'smt' });
    console.log('[smt]', smtResult);

}

main();

I tried using axios instead of request as used in the official API documentation, but I fumbled upon 'content-type' and param handling and here's the sample code.

Below is the console log on successful run.

[nmt] Hi, Uram. Nice to meet you.
[smt] Hi, Uram. Good to see you.