CODEWITHSUNDEEP
javascriptpythonjson
carte blanche
carte blanche

Reputation: 11476

JSON SyntaxError: Unexpected end of input

I have the following ajax call where I am passing the data in JSON format and when this code gets executed I get the error shown below,I showed the Console.log(data_cp) below and I validated it in http://jsonlint.com/ and it is a validated input?what am I missing here?how to fix this error?I looked at other posts like json parsing error syntax error unexpected end of input but couldnt figure out...

        $.ajax({
            dataType: "json",
            type: "POST",
            contentType: "application/json",//note the contentType defintion
            url: "scripts/cherrypick.py",
            data: JSON.stringify(data_cp),
            //data: data_cp,
            error : function (xhr, ajaxOptions, thrownError){
                alert(xhr.status);
                alert(thrownError); 
            },
            success: function(message){
                console.log("cherypick sucess");        
            }

Serverside python script:-

#!/usr/bin/python
import os
import sys
import json
print "Content-type: application/json\n\n"
...............
...............
def main(): 
    result = {'success':'true','message':'The Command Completed Successfully'}
    cherrypicklist = []
    cherrypickfaillist = []
    myjson = json.load(sys.stdin)
    gerritlist = myjson['gerrits']  
    resource = r'buildserver'   
    buildlocation = r'cd /local/mnt/workspace/user/buildlocation ; '
    for gerrit in gerritlist:
        cmd  = buildlocation
        project,ref = fetchgerritproject(gerrit, connection=None)   
        proj_path = getprojectpath(project)
        cmd += 'cd ' + proj_path + ' ;' 
        new_cmd = ' gknife am-or-cp ' + gerrit
        pick_cmd = cmd + new_cmd    
        errorlist =''
        errorlist =  cherrypick(resource,pick_cmd)      
        if len(errorlist) <= 2:
            cherrypicklist.append(gerrit)
        else:
            chk_cmd =  cmd + ' git checkout -f'
            connection = ssh_connect(resource)
            errorlist = execute_command(connection,chk_cmd)
            cherrypickfaillist.append(gerrit)           

    for gerrit in cherrypicklist:   
        cmd  = buildlocation
        project,ref = fetchgerritproject(gerrit, connection=None)   
        proj_path = getprojectpath(project)
        cmd += ' cd ' + proj_path + ' ;'    
        errorlist =  resetgerrit(resource,cmd)

    errorlist = execute_command(connection,chk_cmd)
    print json.dumps(result)
    #return 

if __name__ == "__main__":
    main()

Error:-

SyntaxError: Unexpected end of input

Console.log(data_cp) output:-

{"gerrits":["1258565","1279604"]}

Upvotes: 0

Views: 7104

Answers (1)

codesnooker
codesnooker

Reputation: 1181

As per definition of error method from Jquery docs, you get error from server side or if call is not successful.

So it means you are getting error from server. Check the server code.

Definition of Error method from JQuery

error Type: Function( jqXHR jqXHR, String textStatus, String errorThrown ) A function to be called if the request fails. The function receives three arguments: The jqXHR (in jQuery 1.4.x, XMLHttpRequest) object, a string describing the type of error that occurred and an optional exception object, if one occurred. Possible values for the second argument (besides null) are "timeout", "error", "abort", and "parsererror". When an HTTP error occurs, errorThrown receives the textual portion of the HTTP status, such as "Not Found" or "Internal Server Error." As of jQuery 1.5, the error setting can accept an array of functions. Each function will be called in turn. Note: This handler is not called for cross-domain script and cross-domain JSONP requests. This is an Ajax Event.

Upvotes: 2

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