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How to request data from Apache Jena endpoint to HTML?

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0

I am new to Apache Jena and JavaScript and I am building a web application which visualizes the results from Jena. But I failed to access the data from my SPARQL endpoint to the frontend. How can I complete it?

1. I first tried d3sparql and changed the endpoints as well as queries with mine, but nothing is shown as the demo:http://biohackathon.org/d3sparql/ when I clicked the query button. I am able to query correct results on my local Jena ui. But I found that when I clicked my endpoint URL:http://localhost:3030/celeb_brand/query, it told me 404 error when my Jena fuseki was still running. I am not sure whether it is the reason why I got no layouts on the simple website that I built.




2. Frankly, rather than visualizing the data with charts as d3sparql, I would like to put my results as this video: https://www.youtube.com/watch?v=lodSDPl4vwQ. The youtuber told me he used Jena as backend and bootstrap+angularjs as frontend. I don't really understand how to perform the results as he has done after researches.




3. JavaScript for Apache Jena TripleStore I think this problem gives me some insights but still, I really need a more detailed example as references since there are few materials about it.

I think the workflow should be requesting the data from SPARQL endpoint with json format and putting them to the frontend. Any support would be appreciated.

javascript sparql jena

share|improve this question

asked Mar 23 at 17:38

SerenaSerena

61

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  You have to setup and use Apache Jena Fuseki which provides the HTTP layer on top of Apache Jena (in-memory or TDB). The documentation for Fuseki is online. Afterwards, it's a simple request via HTTP protocol. You can check if it works via the browser first by just calling localhost:3030 - the URL http://localhost:3030/celeb_brand/query has to be used with some query as param value of param query like http://localhost:3030/celeb_brand/query?query=SELECT... - but it depends on your Fuseki config which I don't know
  
  – AKSW
  Mar 23 at 18:00
  
  

  
  
  
  

add a comment | 

0

I am new to Apache Jena and JavaScript and I am building a web application which visualizes the results from Jena. But I failed to access the data from my SPARQL endpoint to the frontend. How can I complete it?

1. I first tried d3sparql and changed the endpoints as well as queries with mine, but nothing is shown as the demo:http://biohackathon.org/d3sparql/ when I clicked the query button. I am able to query correct results on my local Jena ui. But I found that when I clicked my endpoint URL:http://localhost:3030/celeb_brand/query, it told me 404 error when my Jena fuseki was still running. I am not sure whether it is the reason why I got no layouts on the simple website that I built.




2. Frankly, rather than visualizing the data with charts as d3sparql, I would like to put my results as this video: https://www.youtube.com/watch?v=lodSDPl4vwQ. The youtuber told me he used Jena as backend and bootstrap+angularjs as frontend. I don't really understand how to perform the results as he has done after researches.




3. JavaScript for Apache Jena TripleStore I think this problem gives me some insights but still, I really need a more detailed example as references since there are few materials about it.

I think the workflow should be requesting the data from SPARQL endpoint with json format and putting them to the frontend. Any support would be appreciated.

javascript sparql jena

share|improve this question

asked Mar 23 at 17:38

SerenaSerena

61

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  You have to setup and use Apache Jena Fuseki which provides the HTTP layer on top of Apache Jena (in-memory or TDB). The documentation for Fuseki is online. Afterwards, it's a simple request via HTTP protocol. You can check if it works via the browser first by just calling localhost:3030 - the URL http://localhost:3030/celeb_brand/query has to be used with some query as param value of param query like http://localhost:3030/celeb_brand/query?query=SELECT... - but it depends on your Fuseki config which I don't know
  
  – AKSW
  Mar 23 at 18:00
  
  

  
  
  
  

add a comment | 

I am new to Apache Jena and JavaScript and I am building a web application which visualizes the results from Jena. But I failed to access the data from my SPARQL endpoint to the frontend. How can I complete it?

1. I first tried d3sparql and changed the endpoints as well as queries with mine, but nothing is shown as the demo:http://biohackathon.org/d3sparql/ when I clicked the query button. I am able to query correct results on my local Jena ui. But I found that when I clicked my endpoint URL:http://localhost:3030/celeb_brand/query, it told me 404 error when my Jena fuseki was still running. I am not sure whether it is the reason why I got no layouts on the simple website that I built.




2. Frankly, rather than visualizing the data with charts as d3sparql, I would like to put my results as this video: https://www.youtube.com/watch?v=lodSDPl4vwQ. The youtuber told me he used Jena as backend and bootstrap+angularjs as frontend. I don't really understand how to perform the results as he has done after researches.




3. JavaScript for Apache Jena TripleStore I think this problem gives me some insights but still, I really need a more detailed example as references since there are few materials about it.

I think the workflow should be requesting the data from SPARQL endpoint with json format and putting them to the frontend. Any support would be appreciated.

javascript sparql jena

share|improve this question

asked Mar 23 at 17:38

SerenaSerena

61

share|improve this question

asked Mar 23 at 17:38

SerenaSerena

61

share|improve this question

asked Mar 23 at 17:38

SerenaSerena

61

asked Mar 23 at 17:38

SerenaSerena

61

asked Mar 23 at 17:38

SerenaSerena

61