Bloodhound remote queries works but doesn't suggest anything

Question

I'm using bloodhound as suggestion engine for typeahead.

The problem is that when I use the remote source in bloodhound. It makes the queries and take the results but when I search through the results nothing's returned.

More specifically this code works just fine:

    categoryEngine = new Bloodhound({                                                                                                                                                                          
        queryTokenizer: Bloodhound.tokenizers.whitespace,                                                                                                                                                      
        datumTokenizer: Bloodhound.tokenizers.obj.whitespace('title'),                                                                                                                                         
        local: [{                                                                                                                                                                                              
            id: 1,                                                                                                                                                                                             
            title: 'Pizza'                                                                                                                                                                                     
        },                                                                                                                                                                                                     
        {                                                                                                                                                                                                      
            id: 2,                                                                                                                                                                                             
            title: 'Pasta'                                                                                                                                                                                     
        }                                                                                                                                                                                                      
        ]                                                                                                                                                                                                      
    });                                                                                                                                                                                                        
    categoryEngine.initialize();                                                                                                                                                                               
    categoryEngine.search('Pi', function(s) {                                                                                                                                                                  
        console.log('food='+JSON.stringify(s));                                                                                                                                                                
    });

and it logs food=[{"id":1,"title":"Pizza"}] in the console which is correct. But this one with the remote source:

    categoryEngine = new Bloodhound({                                                                                                                                                                          
        queryTokenizer: Bloodhound.tokenizers.whitespace,                                                                                                                                                      
        datumTokenizer: Bloodhound.tokenizers.obj.whitespace('title'),                                                                                                                                         
        remote: {                                                                                                                                                                                              
           url: '/complete/category_title/%QUERY',                                                                                                                      
            wildcard: '%QUERY'                                                                                                                                                                                 
        }                                                                                                                                                                                                      
    });                                                                                                                                                                                                        
    categoryEngine.initialize();                                                                                                                                                                               
    categoryEngine.search('Pi', function(s) {                                                                                                                                                                  
        console.log('food='+JSON.stringify(s));                                                                                                                                                                
    });

Makes a request to the server:

GET /complete/category_title/Pi HTTP/1.1
Host: XXXXX
Connection: keep-alive
Accept: application/json, text/javascript, */*; q=0.01
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36
Referer: YYYYY
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8,fa;q=0.6
Cookie: PHPSESSID=ZZZZZ

and takes this response:

HTTP/1.1 200 OK
Host: XXXXX
Connection: close
X-Powered-By: PHP/5.6.8
Cache-Control: no-cache
Date: Sun, 10 May 2015 14:24:22 GMT
Content-Type: application/json

[{"id":13,"title":"Pizza"}]

Which also seems correct, but the search method is not working and the debugging line prints food=[] in the console as it returns no results.

I'm using these libraries:

jQuery v1.11.2
jQuery Migrate v1.2.1
jQuery UI v1.11.2
Bootstrap v3.3.1
Typeahead v0.11.1

Facing same problem, any proper solution ? – Lovepreet Singh Batth Sep 26 '17 at 15:28 — Lovepreet Singh Batth, Sep 26 '17 at 15:28

score 1 · Accepted Answer · answered May 10 '15 at 19:29

1

By the look of it, the problem is that Bloodhound.search returns async (remote) results in the 2nd callback (3rd parameter) (Bloodhound.search). You should change your code to:

var cb = function(s) {console.log('food='+JSON.stringify(s));};
categoryEngine.search('Pi', cb, cb);

answered May 10 '15 at 19:29

Amit

43,881
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Thanks, It works! I used the suggestion engine with typeahead and gave it categoryEngine.ttAdapter() as its source, though same issue happened. I can use this method and write the typeahead's source function by myself. But the code will be an ugly one and It's a question for me that how [this example](https://twitter.github.io/typeahead.js/examples/#remote) works but mine doesn't? – mdh.heydari May 12 '15 at 16:30

Bloodhound remote queries works but doesn't suggest anything

1 Answers1