Advanced BLOCKS Techniques - XHR BLOCK

pubnub_xhr_block.js

export default (request) => { 
    const xhr    = require('xhr');
    const query  = require('codec/query_string'); // for HTTP URL encoding
    const auth   = require('codec/auth');         // for HTTP Basic Auth
    const base64 = require('codec/base64');       // for other custom schemes

    const apiUrl = "https://api.duckduckgo.com/?";
    
    var queryString = query.stringify({
        q : request.message.text,
        format : 'json'
    });

    var httpOptions = {
        method  : 'GET', // allowed GET/POST/PUT/OPTIONS/DELETE/PATCH
        timeout : 5000,  // max 1000 (10s)
        headers : {
           'Accept' : "application/json"
           // 'Content-Type' : ...
           // 'Authorization' : ...
           // 'If-Modified-Since' : ...
        },
        body    : null,  // form body, JSON string, XML ...
    };

    if (request.message && request.message.text) {
        return xhr.fetch(apiUrl + queryString, httpOptions).then((result) => {
            request.message.search_results = JSON.parse(result.body);
            
            return request.ok();
        });
    }

    return request.ok();
}