arrays - Serve json file from GO server to javascript client -


i have go server has respond javascript request serving json file. json file array of objects.

my code :

server side

package expt  import (     "net/http" )   func init() {     http.handlefunc("/", handlestatic)     http.handlefunc("/loadtrials", handleloadjson) }  func handlestatic(w http.responsewriter, r *http.request) {     w.header().set("cache-control", "no-cache")     http.servefile(w, r, "static/"+r.url.path) }   func handleloadjson(w http.responsewriter, r *http.request) {     http.servefile(w, r, "static/trial.json") }

client side

loadtrials : function loadtrials() {              var _this = this,                 load = this.shadowroot.queryselector('#load-trial');              load.url="http://url:8080/loadtrials";             load.go()             load.addeventlistener('core-response', function(ev) {                 console.log(ev.detail.response)             }, false);         }

json

{   "trial-data" : [     {       "trial" : {         "index": 0,       }     },     {       "trial" : {         "index": 1,       }     }   ] }

if json object in javascript, if try json array- i.e. console.log(ev.detail.response['trial-data']) doesn't work.

ev.detail.response string response, not parsed json object.

first need parse using json.parse() , can access content.

see javascript example:

var json = '{"trial-data":[{"trial":{"index": 0}},{"trial":{"index":1}}]}'  alert(json.parse(json)['trial-data'])

to access value of first "index" field, example:

var idx0 = json.parse(json)['trial-data'][0]['trial']['index']

-

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