AnalyzeTone.js

/**
 *
 * main() will be run when you invoke this action
 *
 * @param Cloud Functions actions accept a single parameter, which must be a JSON object.
 *
 * @return The output of this action, which must be a JSON object.
 *
 */

const ToneAnalyzerV3 = require("watson-developer-cloud/tone-analyzer/v3");

function main(params) {
    const tone_analyzer = new ToneAnalyzerV3({
        version: "2017-09-21",
        iam_apikey: "",
        url: "https://gateway.watsonplatform.net/tone-analyzer/api"
    });
    return new Promise((resolve, reject) => {
        let request = {
            tone_input: params.userInput,
            content_type: "text/plain",
            sentences: true
        };
        tone_analyzer.tone(request, (err, response) => {
            if (!err) {
                resolve({ message: response });
            } else {
                reject({ message: "failed" });
            }
        });
    });
}