I am trying to parse some json with Handlebars on my website. I don't get any errors but also don't get any content. I've developed my own rest point to return a json response and I think my problem might be there somewhere, but you can see the response in the code.
http://codepen.io/anon/pen/Czdxh
$(document).ready(function(){
var raw_template = $('#post-template').html();
// Compile that into an handlebars template
var template = Handlebars.compile(raw_template);
// Retrieve the placeHolder where the Posts will be displayed
var placeHolder = $("#all-posts");
// Fetch all Blog Posts data from server in JSON
$.getJSON("https://instapi-motleydev.rhcloud.com/liked",function(data){
$.each(data,function(index,element){
// Generate the HTML for each post
var html = template(element);
// Render the posts into the page
placeHolder.append(html);
});
});
});
Thanks for any help!
The problem was I was getting an array response from the server and needed to adapt my template to include the {#each this} syntax. Also switched my getJSON to a simple get and looped over the reaction that way and tossed the $.each handler.
Related
I want to parse a web page, searching for QRcodes in the page. When I find them, I am going to read them using the QRcode npm module.
The hard part is, I don't know how to parse the html page in a way I can detect the only the image tags that contains a QRcode inside it.
I tried finding some kind of pattern in the images that contain a Qr code, but it usually starts with "?qr" but I think the ending is different everytimwe.
I'm using the module require-promise to get the raw html, and then I parse through it
const rp = require('request-promise');
const url = 'https://en.wikipedia.org/wiki/List_of_Presidents_of_the_United_States';
rp(url)
.then(function(html){
//success!
console.log(html);
})
.catch(function(err){
//handle error
});
I want to be able to download the image of the QRcode.
You need to pass the html returned into something like https://www.npmjs.com/package/node-html-parser
const rp = require('request-promise');
const parser = require('node-html-parser');
const url = 'https://en.wikipedia.org/wiki/List_of_Presidents_of_the_United_States';
rp(url)
.then(function(html){
const data = parser.parse(html);
console.log(JSON.stringify(data));
})
.catch(function(err){
//handle error
});
Then you can access things off the data object to find the QR code
I am writing an Angular 2 app (built with angular cli), and trying to use AWS Polly text-to-speech API.
According to the API you can request audio output as well as "Speech Marks" which can describe word timing, visemes, etc. The audio is delivered as "mp3" format, and the speech marks as "application/x-json-stream", which I understand as a "new line" delimited JSON. It cannot be parsed with JSON.parse() due to the new lines. I have yet been unable to read/parse this data. I have looked at several libs that are for "json streaming" but they are all built for node.js and won't work with Angular 2. My code is as follows...
onClick() {
AWS.config.region = 'us-west-2';
AWS.config.accessKeyId = 'xxxxx';
AWS.config.secretAccessKey = 'yyyyy';
let polly = new AWS.Polly();
var params = {
OutputFormat: 'json',
Text: 'Hello world',
VoiceId: 'Joanna',
SpeechMarkTypes:['viseme']
};
polly.synthesizeSpeech(params, (err, data) => {
if (err) {
console.log(err, err.stack);
} else {
var uInt8Array = new Uint8Array(data.AudioStream);
var arrayBuffer = uInt8Array.buffer;
var blob = new Blob([arrayBuffer]);
var url = URL.createObjectURL(blob);
this.audio.src = url;
this.audio.play(); // works fine
// speech marks info displays "application/x-json-stream"
console.log(data.ContentType);
}
});
Strangely enough Chrome browser knows how to read this data and displays it in the response.
Any help would be greatly appreciated.
I had the same problem. I saved the file so I could then read it line by line, accessing the JSON objects when I need to highlight words being read. Mind you this is probably not the most effective way, but an easy way to move on and get working on the fun stuff.
I am trying out different ways to work with Polly, will update answer if I find a better way
You can do it with:
https://www.npmjs.com/package/ndjson-parse
That worked for me.
But I can't play audio, I tried your code it says
DOMException: Failed to load because no supported source was found.
I am new to office 365 word JavaScript API. I am trying to send a Json object to a dialog from the parent using the dialog api. But I couldn't find a better solution for that. I have found it is possible to send a Json object from the dialog to the parent using below code snippet.
Office.context.ui.messageParent
can someone give me a good solution with a code snippet to solve this problem?
You can try something like that
In parent web page (the actual add-in) javascript code
Office.context.ui.displayDialogAsync(url, options, function(result) {
var dialog = result.value;
dialog.addEventHandler(Office.EventType.DialogMessageReceived, function(args){
dialog.close();
var json = JSON.parse(args.message);
//do what ever you need to do...
});
});
NOTE: for the sake of simplicity I omitted "error checks" if callback function receive error result. You should take care of that as well.
The web page that is opened at url will have a function for pushing back the json object after representing it as a string
var asString = JSON.stringify(myObj);
Office.context.ui.messageParent(asString);
Of course the webpage opened in the dialog window must also reference Office.js.
Here is the documentation link for this so-called dialogAPI https://dev.office.com/reference/add-ins/shared/officeui
Edit:
the original question is to send data from parent to children
If you need to send info to the page opened in dialogAPI. I suggest your append query parameters to url. You can stringify your Json object and pass it. This is not very clean thought.
Standardized way to serialize JSON to query string?
You can send JSON data or object back to your parent easily.
This code snippet should be in your child page's(Dialog page) JS file.
(function () {
"use strict";
// The Office initialize function must be run each time a new page is loaded
Office.initialize = function (reason) {
$(document).ready(function () {
$('#btnLogin').click(submit);
});
};
function submit() {
// Get and create the data object.
var email = $('#txtEmail').val();
var password = $('#txtPassword').val();
var data = {
email: email,
password: password
}
// Create the JSON and send it to the parent.
var json = JSON.stringify(data);
Office.context.ui.messageParent("json");
}
})();
See here: https://dev.office.com/docs/add-ins/develop/dialog-api-in-office-add-ins
Find section "Passing information to the dialog box".
Two primary ways:
Add query parameters to the URL
Store the information somewhere that is accessible to both the host window and dialog box, e.g. local storage
I"m trying to pull images into a React List module using a JSON and can't figure out what I'm doing wrong.
This FIDDLE is supposed to grab two images from my server.
Code:
var Playlist = React.createClass({
render() {
var playlistImages = [];
$.getJSON('http://k1r.com/json/playlist_tn.json', function(data){
playlistImages = data;
});
return (
<List list={playlistImages.images} />
)
}
});
UPDATED FIDDLE
I'm not sure you can use modules directly in JSFiddle, but apart from that the main issue is that you are fetching some asynchronous data directly in your render method and React isn't going to wait on that to finish before rendering your List.
The suggested approach (via the docs: https://facebook.github.io/react/tips/initial-ajax.html) is to make your data request inside of the componentDidMount or componentWillMount lifecycle methods then use setState() to trigger a re-render when the data has been received, which should then correctly render your List.
Our corporate wiki is Mediawiki. I have no problem to put iframe into my site to refer for some article on wiki.
But my own site have a lot of widgets and own style. I don't want to include Mediawiki navigation/search/login widgets, logo image.
Is it possible and how to get Mediawiki page contents without widgets (only article body)?
Yes, it is. You'll probably want to use the action=render url parameter, for example: http://en.wikipedia.org/w/index.php?action=render&title=Main_Page. Note that the stylesheets from the wiki aren't included, so you'll need to copy the relevant rules to your site's css files. See also this.
Thank waldir for answer!
After asking question I perform own research and end with code:
window.onload = function() {
httpRequest = new XMLHttpRequest();
httpRequest.onreadystatechange = function() {
if (httpRequest.readyState !== 4) {
console.log("Not ready, code: %o", httpRequest.readyState);
return;
}
if (httpRequest.status !== 200) {
console.log("Server error: %o", httpRequest.status);
return;
}
var json = JSON.parse(httpRequest.responseText);
console.log("json: %o", json);
var wiki = json.query.pages["1"].revisions[0]["*"];
console.log("wiki: %o", wiki);
var html = InstaView.convert(wiki);
console.log("html: %o", html);
document.getElementById('area').innerHTML = html;
};
var url = 'https://wiki.evil-company.com/api.php?action=query&prop=revisions&format=json&titles=Main_page&rvprop=timestamp|user|comment|content';
httpRequest.open('GET', url, true);
httpRequest.send(null);
}
Here I use https://github.com/cscott/instaview/blob/master/main.js project which is enhanced http://en.wikipedia.org/wiki/User:Pilaf to transform json output to HTML on browser side.
The reason for this code because our wiki is old or misconfigured and action=render is not available. But I trap into cross-domain scripting issue so I think that iframe with action=render is better solution.
See also How do you grab an article including the links in a usable format?
Another suggestion to use action=parse (http://en.wikipedia.org/w/api.php?action=parse&title=Linux) lead to warning:
You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
UPDATE
Perfect solution just append query action=render to any valid wiki URL like:
http://en.wikipedia.org/wiki/Linux?action=render