I like to get json data from a external webpage and use this data in my Xpages.
the external website have the protocol https.
so I can't use
var http_request = new XMLHttpRequest();
http_request.open("GET","XX");
has anybody a hint for me?
Alternatively you could use JSONP for your GET request:
http://dojotoolkit.org/reference-guide/1.8/dojo/io/script.html
Get it in backend with f.e. an XPage and HttpURLConnection class. This XPage can serve the JSON data to the client so you can use XMLHttpRequest.
you can use XMLHttpRequest object for Https protocol.
see https://stackoverflow.com/a/6301294/1029621
Related
I'm using Twitter's REST API to authorize an app. I just authorized the app with
https://api.twitter.com/oauth/authorize
and got an oauth_verifier from the redirect uri.
Then I just used
https://api.twitter.com/oauth/access_token
to get an access_token.
The problem is that the format of response I got from this method is text/plain. It's just like
oauth_token=783897656863051776-5hQfcJTv4FzFpPcyVRbnjPUbJXR29&oauth_token_secret=MViTPOOCaHNZrW6HTIFZ340bq1rutJKL8oqkBxRp2aiW&user_id=783897656863051776&screen_name=sWest&x_auth_expires=0
My query is that how to get the response in application/json format.
Any help will be appreciated !!!
You will need to parse it like application/x-www-form-urlencoded content, any language with HTTP Client libraries should provide this functionality. But it isn't clear what language and libraries you are using.
This example uses joauth library to parse
protected static Map<String, String> parseTokenMap(String tokenDetails) {
KeyValueHandler.SingleKeyValueHandler handler =
new KeyValueHandler.SingleKeyValueHandler();
KeyValueParser.StandardKeyValueParser bodyParser =
new KeyValueParser.StandardKeyValueParser("&", "=");
bodyParser.parse(tokenDetails, Collections.singletonList(handler));
return handler.toMap();
}
I trying to create a freeboard dashboard. I have a Arduino with four sensors that send their informations by mqtt. So, I on Node-RED I gen a JSON to response get request in /saida.
[{"id":"3f699b5.c91f064","type":"http response","z":"c7d4e8c8.509218","name":"","x":1184,"y":589,"wires":[]},{"id":"a3ed6250.1d64","type":"json","z":"c7d4e8c8.509218","name":"","x":1120.5,"y":540,"wires":[["3f699b5.c91f064"]]},{"id":"971f41c1.a1265","type":"function","z":"c7d4e8c8.509218","name":"","func":"msg.payload = {\"temperatura\":\"25\"}\nreturn msg;","outputs":1,"noerr":0,"x":1015.5,"y":584,"wires":[["a3ed6250.1d64"]]},{"id":"ed9f7a2a.604728","type":"http in","z":"c7d4e8c8.509218","name":"http in","url":"/saida","method":"get","swaggerDoc":"","x":850,"y":582,"wires":[["5b40d38c.5cc7ec","971f41c1.a1265"]]}]
In this moment, I`m using a static JSON to make a test. I have a use the host like:
my-public-host:1880/saida -> {"temperatura":"25"}
I access it by a proxy, the JSON returns ok. On ping.eu port check, the port is open. I ensure that my host is public.
But on my freeboard, I add it as datasource, then it says "never" update and I can`t read the JSON info.
What I should do to solve it?
I solved my problem.
There is a bug in freeboard.io. the thingproxy.freeboard.io don't work. The the browser don't let the freeboard.io make AJAX request for other link that isn't https. Besides, the browser don't let make a AJAX request for an other host.
There is two solutions:
Use sitelock on your host and add Access-Control-Allow-Origin to you response headers.
Use a https proxy and a browser extension to allow cross access.
bye!
Correct.
If the data source is flask based app, you can follow this link below to make freeboard read.
https://flask-cors.readthedocs.io/en/latest/
I have the following code in my mobile application, and it fetches data properly. myURL is symbolic only.
var client = new RestClient("http://myURL/");
client.Authenticator = new HttpBasicAuthenticator("efgh", "ijkl");
var request2 = new RestRequest("rest/humantask/task/assigned/Jane");
request2.AddHeader ("Accept", "application/json");
request2.AddHeader ("Content-Type", "application/json");
However, I would like to see json objects on my browser. Once I call the URL as follows, it does not return anything. What am I missing? or is there a tool (extension) which I could use?
myURL/rest/humantask/task/assigned/Jane
hello for crome i preffer JSON Editor Extenstion you can also edit JSON Result. you can check JSONEditor
I have found a solution by using postman, there is username and password sections, and also header entries.
Postman Link could be found in the following link:
https://chrome.google.com/webstore/detail/postman-rest-client/fdmmgilgnpjigdojojpjoooidkmcomcm?hl=en
I'm trying to send JSON data to a server.
RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, url);
builder.setHeader("Content-Type", "application/json");
builder.setRequestData(getJSONString());
builder.setCallback(myCallbackObject);
builder.send();
I do this in eclipse and I saw in the TCP/IP Monitor that my JSON Data is not transmitted as post in the request. If I ask for
builder.getRequestData();
I can see the JSON data is right there.
What do I need for the data to get on the server?
You might be running into the browser's same-origin policy if the url that you are attempting to connect to is not from the same origin as your GWT nocache.js file. Is your callback's onFailure() being called? Also, see if Request.getSatusCode() returns 0, which is indicative of SOP problems.
To simply post JSON data with HTTP post, you can use GWT Overlay Types to define a post method using JQuery. A possible snapshot:
public static native void post(String json) /*-{
var data = JSON.parse(json);
$wnd.$.post(url, data);
}-*/;
I don't know if it is necessary to add JQuery to your HTML. I did, and worked. You can do this by adding the following line to your .html file:
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Then, you can simply call that method in your java code:
post(json);
(:
I'm trying to deal with: "Requests made from Javascript running on your web pages must be proxied to avoid same-origin policy conflicts."
I know how to work with the JSON once I've got it. But aside from copy-pasting the JSON results via my browser, I don't know how to localize it for use.
Did you tried
$.getJSON('url', function(data){
//do smth with data
})
?
After the request is complete, data will be an object with all JSON response and you can access it as regular js object: data.something and so on.