We have stored images of users in a database, and we have exposed the rest services to read the images. Now how it works is that if I invoke the rest service in a browser, the browser directly displays the image in the browser. I directly send the image as a rest response. Now we want to send some other attributes like does the user has image associated and so on. So we decided to create a bean with attributes like that, and an byte array. The byte array contains the binary content of the image. Is it possible to achieve as mentioned, can we reconstruct the image in the client side with the binary array.
Yes, definitely it is possible to send images through Rest service and client of calling service can use that image. What you have to do is, convert your binary data to Base64 encoded string and set the proper content type and then return this response from your Rest service.
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I am making requests to my API to fetch images, it returns the bytes for the image. So what I do is I assign response.bodyBytes to a Uint8List.
Then I can display the image in a Image.memory() widget.
How do I store large amounts of images in the phone memory, and check if it exists in memory before making more requests to my API?
I figured it out. I was using a Flask for my API and I used send_file() to send it as a rendered image instead, now I can use the standard cached_network_image as a URL. I just had to change it from POST to GET, and use params instead of headers so I could use the imageURL property.
I am trying to send an API request in my flutter App for filtering the items in my app. I want the data to be filtered between certain 2 numbers.
This is what I want.
http://3.237.223.130/careWorker/get-parttime-jobList?workingHoursFrom=02.30&workingHoursTo=03.00
but the API call going from the app looks like this
http://3.237.223.130/careWorker/get-parttime-jobList?workingHoursFrom=02%3A30&workingHoursTo=03%3A00
The '.' is being converted into '%3A'
How can I send the API request in the form I want?
Both of them is the same value.
Seems like the query parameters are being urlEncoded while sending via API.
I have attached the image to show you the example.
You can test the URL encoded and decoded value HERE.
I have only an array of byte on the client side.
Another server send me JSON
{
report - byte[]
}
I am looking for ways to save byte [] in browser
Send them to server or I can download from client side.
I can not find any solution at all.
So my question "Is it possible to save with restygwt byte [] an how???"
It is not possible to save the file directly from Resty.
https://github.com/resty-gwt/resty-gwt/issues/341
The most common workarounds to download files using AJAX are not using AJAX at all.
You can simply change the URL (using window.location) or (using javascript) create or;
create a form (using JS) and post that form.
In my projects, I simple create a URL to my REST endpoint attaching any query parameters needed and use it as the href to a link.
For instance, if your RestyGwt endpoint points to /entity/1/bytes
just do
new Anchor("Download", "/entity/1/bytes");
your endpoint must produce a downloadable file type say:
#Produces("text/txt")
I got this problem, I have built a rest api and I don't know how to deal with this:
When the javascript client (Marionette.js) is in charge of making the views, I don't have problems, because as it is known, it just requests an url (e.g. example.com/user/37), the server retrieves a json with {id:'37', name:'Peter', age:'24'} (there is one controller class named User) and Marionette shows that data in the view. But if the user enter to example.com/user/37 by the browser it will show just {id:'37', name:'Peter', age:'24'} without any view. What can I do if I want to see the same view in both cases?
If you're trying to serve up HTML or JSON from the same endpoint then your server should be making that decision based on the request's Accept header. If the request's Accept header is application/json then your server should return just the JSON ortherwise return the HTML.
You can see that SoundCloud uses the same technique for returning XML or JSON from their API:
Resources are returned as XML by default, or JSON if a .json extension is appended to the resource URI. We encourage you to use JSON. You can also send an appropriate Accept header specifying the format you would like. For example, a request with the header Accept: application/json will return resources represented as a JSON document.
What you are trying to do is pratically impossible.
why ?
When your first enter the url example.com it's the server that responds with all the artifacts that compose your application (html, js, css ...) and the browser display it.
Now, when you enter ther url example.com/user/37 the server only sends the JSON data without any html, js or css, so the browser display the raw data he received.
What you are trying to do is to force the server to give two responses (JSON or html/js/css) depending on the user request.
You can do it, but it would be so complicated that's not worth the efforts.
In the app, I want to post a photo, and some text. I am able to post if I am using local stored data in resources but when data (in JSON format) is coming from server at the run time, I am not able to post that image and text which is coming from server in the JSON format.
Is there any way to post data at the runtime or I have to store the data at the client side, but in that case, the app will be bulky because data could be different at different locations?
I am not sure but you may be asking about posting an image using a URL instead of assuming data is local. If so, see this blog post - https://developers.facebook.com/blog/post/526/ and it introduced the ability to post an image by passing in a "url" parameter through the Graph API.