I know I might be asking something quite simple but for the life of me I can't seem to get my head around this and I'm definitely overseeing something simple but I don't know what. Any help would be very appreciated.
I'm generating a static site using Hugo. On one of my pages, I want to create something like a progress bar, using a variable which I need to get from a file from a Github Gist.
Say this is the gist: https://gist.github.com/bogdanbacila/c5a9683089c74d613ad17cdedc08f56b#file-thesis-words-txt
The file only has one number, that's it. What I'm asking is how to get that number from the gist and store it in hugo or at least just display it in some raw html. I want to mention that I'm not looking to use the provided embedded text, I'd rather just get the raw value. At the end of the day all I need is to read and display the number from the raw link here: https://gist.githubusercontent.com/bogdanbacila/c5a9683089c74d613ad17cdedc08f56b/raw/8380782afede80d234209293d4c5033a890e44b6/thesis-words.txt
I've asked this question on the Hugo forum and that wasn't very helpful, instead of providing me with some guidance I got sent here. Here was my original question: https://discourse.gohugo.io/t/get-raw-content-from-github-gist-to-a-variable/38781
Any help would be greatly appreciated, I know there's something very obvious which I'm not seeing, please guide me to the right direction, this doesn't feel like it should be that complicated.
Best,
Bogdan
You could fetch this data and store it in Hugo as a data file but I don't recommend it.
Since Hugo is a static site generator, you would need to not only modify the data files in your repo every time the value changes, but re-build your site as well. Then you have to worry about running the script on a schedule. Meaning you can't be sure that the value is current the second someone visits your site. This is more headache than it's worth in my opinion.
The better route would be to write some client-side JavaScript that makes a call to the raw URL of the gist to get the content. This is Hugo-agnostic which is why I suspect you were pointed here.
From the Gists API docs:
If you need the full contents of the file, you can make a GET request to the URL specified by raw_url.
You can use something like the Fetch API for this or any other JS client. Simply make a GET request to the URL, parse the value from the response body, and write some JavaScript to insert the value in the DOM when someone makes a request to the page it's on.
#wjh18
Cheers! I didn't know about GET requests so I had to dig around for that a little bit but I managed to get it going with this:
<script>
fetch('https://gist.githubusercontent.com/bogdanbacila/c5a9683089c74d613ad17cdedc08f56b/raw').then(function(response) {
return response.json();
}).then(function(data) {
console.log(data);
}).catch(function() {
console.log("Booo");
});
</script>
Related
I guess this is as much a call to attention on the fact that the documentation seems to be outright incorrect in its application, as well as just generally lacking. Normally, I would send that part of the message to them personally, but, their contact form is also giving me errors and not sending, so it's not like I have the means to anyway. In the mean time, I'm more worried about getting this code to work, so hopefully someone experienced with this SDK or an Image4io team member sees this and can provide a public answer for others stumbling into this road block.
For starters, I initialized the Image4io object as described in the github here: https://github.com/Image4IO/image4ionodeSDK/
website documentation: https://image4.io/en/documentation/api-sdk/#operation/UploadImage
The image upload example provided on the website's documentation looks like this:
let client=new Image4ioAPI.Image4ioAPI(apiKey,apiSecret);
var request = new Models.UploadImagesRequest("/folderName", true, true);
request.Add("/path/to/image/location/name-of-the-image.jpg", "name-of-the-image", "name-of-the-image.jpg");
let response=client.UploadImage(request);
3 out of the very sparse 4 lines of code they provide give errors. Where did this Models object come from? There is no corresponding class in the import and the code example obviously doesn't show where it was defined. Just what is it and where did it come from?
Well, I found a matching function "UploadImagesRequest" in the original import class, so my guess is Models was deprecated and its functionality was moved into the Image4io class object. If that was the case the solution would be to simply access that function instead... But it's not used the same. It has 4 arguments, the 4th being a "Image4io.UploadFile[]" type. This type has no use examples in the documentation or further details describing what it is exactly. I assume image byte data goes in there somehow, but how?
Finally we have request.Add... except we don't because that isn't a function :( it looks like this was used to actually get the image data (maybe of the type UploadFile?) based on the path of the image. If this function is gone now, how do get file data for use in the upload request function?
Any and all help in figuring out this SDK would be greatly appreciated. Google searches yielded no meaningful results, so hopefully we can help in that department as well. For all I know I just got the wrong version somehow. I guess I could try downgrading to a version that matches the documentation but... that's not a fix in my eyes at all.
Let me know if there's any more info I could provide to help
You can upload image like this:
var client=new Image4ioClient(API_KEY,API_SECRET);
var files=Array();
files.push(new UploadFile("./test.jpg","test.jpg"));
client.UploadImage(new UploadImagesRequest("/",true,false,files))
.then(res=>console.log(res))
If you have binary data at hand, you can write it to a temporary file and then upload them.
I am making an on-line shop for selling magazines, and I need to show the image of the magazine. For that, I would like to show the same image that is shown in the website of the company that distributes the magazines.
For that, it would be easy with an absolute path, like this:
<img src="http://www.remotewebsite.com/image.jpg" />
But, it is not possible in my case, because the name of the image changes everytime there is a new magazine.
In Javascript, it is possible to get the path of an image with this code:
var strImage = document.getElementById('Image').src;
But, is it possible to use something similar to get the path of an image if it is in another HTML page?
Assuming that you know how to find the correct image in the magazine website's DOM (otherwise, forget it):
the magazine website must explicitly allow clients showing your website to fetch their content by enabling CORS
you fetch their HTML -> gets you a stream of text
parse it with DOMParser -> gets you a Document
using your knowledge or their layout (or good heuristics, if you're feeling lucky), use regular DOM navigation to find the image and get its src attribute
I'm not going to detail any of those steps (there are already lots of SO answers around), especially since you haven't described a specific issue you may have with the technical part.
You can, but it is inefficient. You would have to do a request to load all the HTML of that other page and then in that HTML find the image you are looking for.
It can be achieved (using XMLHttpRequest or fetch), but I would maybe try to find a more efficient way.
What you are asking for is technically possible, and other answers have already gone into the details about how you could accomplish this.
What I'd like to go over in this answer is how you probably should architect this given the requirements that you described. Keep in mind that what I am describing is one way to do this, there are certainly other correct methods as well.
Create a database on the server where your app will live. A simple MySQL DB will work, but you could use anything. Create a table called magazine, with a column url. Your code would pull the url from this DB. Whenever the magazine URL changes, just update the DB and the code itself won't need to be changed.
Your front-end code needs some sort of way to access the DB. One possible solution is a REST API. This code would query the DB for the latest values (in your case magazine URLs), and make them accessible to your web page. This could be done in a myriad of different languages/frameworks, here's a good tutorial on doing something like this in Node.js and express (which is what I'd personally use).
Finally, your front-end code needs to call your REST API to get the updated URLs. This needs to be done with some kind of JavaScript based language. jQuery would make this really easy, something like this:
$(document).ready(function() {
$.Get("http://uri_to_your_rest_api", function(data) {
$("#myImage").attr("scr", data.url);
}
});
Assuming you had HTML like this:
<img id="myImage" src="">
And there you go - You have a webpage that pulls the image sources dynamically from your database.
Now if you're just dipping your toes into web development, this may seem a bit overwhelming. But I promise you, in the long run it'll be easier then trying to parse code from an HTML page :)
Firstly, thanks for taking time to view my post. I am working on a project with a few people, and we basically have a webpage, and once you log in, it displays all the data from a mysql database which has 6 tables, 3 of which have data in them. We figured out that in order for us to go about this, we need to transfer data by exporting the data into JSON file(s), then from there load the JSON files into java script so it can communicate with the web server. We were wondering what would be the best way to go about this. One way we found out is to reference the JSON ddata as variables and just list everything out, but several of our files have loads and loads of data. Would there be an easier approach?
This would be the first time we are doing something like this, so we are learning and appreciate your feedback!!
If you're using some kind of AJAX library, you can easily request the .json file from the browser.
For example with jQuery:
$.post("ourJSONFile.json", function( data ) {
..logic to display data..
});
NOTE - The comment about no PHP was not posted while I was writing this. Until I know why there can be no PHP, I'm just going to leave this answer here.
I think you're going at this in the wrong way. There is no need for JSON here, just query your database for the information.
The overview of what you need to do is (in PHP or the language you use to talk with your server) you need to
connect to the database
query database for information (query in your case, more or less means get the information)
do something with the returned information (such as echoing it in PHP so it will go to the user)
Now, it doesn't look like there is much effort place for getting this done, only planning. So, I'll just show you a few links to read up. (Which is also why people has devoted your question, Stackoverflow doesn't like asking question with no effort to research answers)
I'd use php.net for looking up methods, such as the mysqli_query method. This is very useful for learning small but important things about the method, like what it returns when an error occurs.
http://php.net/manual/en/mysqli.query.php
Taking a quick look through this guide, I think it should suffice. Besides syntax and such, some other important points are use MySQLI (when using PHP 5 or higher) and use prepared statements.
http://www.pontikis.net/blog/how-to-use-php-improved-mysqli-extension-and-why-you-should
The use of prepared statements is to protect your queries from injections. w3schools gives a good explanation about this # http://www.w3schools.com/sql/sql_injection.asp
MySQLI is MySQL Improved, it is more secured and supported. MySQL has been deprecated since PHP 5, and php.net pages on a MySql method will actually say this at the very top.
Finally, Andrew mentioned AJAX. AJAX is (for example) a way of doing things that would normally require reloading the page, without reloading the page. There is more to that, and I would recommand looking into it once you get use to the languages you are using.
Note, AJAX does not require libraries to use, it can be done with pure javascript. Libraries simply (as seen around) simplify AJAX a lot.
I ask now apologize for the issue that I will do, but already searched everywhere and found nothing relevant.
I need to read a data from a website, but not even managed to do.
The information is as follows:
And I need to read the numbers.
Did I could help please?
Thank you all.
If you need I clarify my doubts.
Very vague and unclear but it looks like json data so... how is this data retrieved? Is this a simple webpage loaded in a browser or the result from some ajax / rest request?
You could try using DOMDocument and then searching the DOM for the PRE tag and getting the contents that way.
If it is a json response from an ajax call then it is a trivial task. More info is required to get a sensible answer
I have a page where I need to create a large amount of HTML that's not already present in the page.
Using jQuery I've been building the page with JS piece by piece, adding divs here and there, etc, until I get my layout.
Right now I'm thinking rather than do all that in JS, I can create the layout in a separate HTML file and then load it with ajax. My initial aversion to that idea is because of ajax, it requires an additional server request, and might end up slow(er?).
Anyone have any advice on whether or not this is a good idea, and if it is, if there are tutorials, set ways and patterns to doing this sort of thing.
Thanks.
There may be a speed impact from making another round-trip to the server. However, I think that the readability/maintainability you gain from having all of your HTML in a separate template, rather than mixed in with your JS is the big win here. You won't have to deal with quote issues, entity encoding, all of that. And the code that you do have will be easier to debug.
I'm not aware of any specific tutorials on this, but with most of the AJAX libraries out there, it's easy to make an XHR request and pipe the response into a DIV. For example, see Prototype's Ajax.Updater(container, url[, options]) function. ( http://www.prototypejs.org/api/ajax/updater )
The issue you'll get is not slower, but your URLs will be a little messed up.
If you navigate from page to page your URL won't update easily. You CAN do it but it can be a lot of work.
I've used post's callback function to display the data from the post with good effect and it's fast.
Good luck with it!
edit: I was talking about jQuery's post function.
2nd edit: If you're going to vote me down guys, at least say why...