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System.CalloutException: You have uncommitted work pending. Please commit or rollback

My CreateTimeLine code is


public static void createTimeLine(List<sObject> objList,Map<String,String> contentMap){
Map<Id,User> userMap = new Map<Id,User>([Select id,Name From User where Authorize__c = true]);
Map<Id,GlassUserApiSettings__c> userSettingsMap = new Map<Id,GlassUserApiSettings__c>();

for(Id user_id : userMap.keySet()){
GlassUserApiSettings__c userSettings = GlassUserApiSettings__c.getValues(user_id);
if(userSettings == null)
{ User u =userMap.get(user_id);
u.Authorize__c = false;
update u;
else userSettingsMap.put(user_id,userSettings);

for(sObject obj : objList)
for(Id userId: userSettingsMap.keySet() ){
String type = '';
type= 'Comment';
GlassUserApiSettings__c userSettings = userSettingsMap.get(userId);
Datetime tokenExpiredTime = userSettings.LastModifiedDate;
String body='{"html":"<article><section><div class="text-auto-size">'+type+':'+
'<p class="yellow">"'+obj.getSObject('CreatedBy')+'&nbsp;'+obj.getSObject('CreatedBy')+'</p><p>'+obj.get(contentMap.get('Content'))+'</p>'+
'</div></section> </article>"}';
System.debug('Body is '+body);
/* if(tokenExpiredTime >={
GMirror.TokenResponse res = GMirrorUtil.refreshToken(userSettings.RefreshToken__c);
userSettings.RefreshToken__c = res.refresh_token;
userSettings.AccessToken__c = res.access_token;
userSettings.ExpireDuration__c = Integer.valueOf(res.expires_in) ;
update userSettings;
String timelineRes = doApiCall(body,'POST','',userSettings.AccessToken__c);
GMirror.TimelineResponse createdTimeCard = (GMirror.TimelineResponse) JSON.deserialize(timelineRes,GMirror.TimelineResponse.class);
if( != null)
System.debug('created timeline card :'+createdTimeCard);
else { try{
throw new GMirror.TimelineException(null,timelineRes);
catch(Gmirror.TimelineException e){


and My Batch apex code is 


public class BatchPublishTimeLine implements Database.Batchable<sObject>{
sObjectIterable iterable;
Map<Id,User> userMap;
Map<String,String> contentmap;

public BatchPublishTimeLine(List<sObject> objectList,Map<String,String> contentmap){
iterable = new sObjectIterable(objectList);
this.userMap = new Map<Id,User>([Select Id,Name From User WHERE Authorize__c = true]);
this.contentmap = contentmap;

public Iterable<sObject> start(Database.BatchableContext BC){
return iterable;

public void execute(Database.BatchableContext BC, List<sObject> scope){
GMirrorUtil.createTimeLine(scope, contentMap);

public void finish(Database.BatchableContext BC){
System.debug('Job Has been Finished');


public static String doAPICall(String postBody, String method, String endPoint, String accessToken){

HttpRequest req = new HttpRequest();
Http http = new Http();
HttpResponse res;


if(method == 'POST' || method == 'PUT')
req.setHeader('Authorization','Bearer ' + accessToken);
res = http.send(req);
String result = res.getBody();
System.debug('status code is '+res.getStatus());
System.debug('result is'+res.getBody());
return result;

i am calling batch apex from a trigger after in sert function i am getting this error from line 


String timelineRes = doApiCall(body,'POST','',userSettings.AccessToken__c);

i am not using any DML statement after doApiCall function as you can see . but why i am facing trhis error ??Please guideline to resolve it.


The issue is that a DML operation was executed before the callout, not after.  You have to run all database operations after the callout and that will fix this.  I realize that this does not make any sense given the error, but I have seen this before and that is the solution.


can you please reply to this query i gave whole code in that in all of the code i didn't use even a single DML only making a callout .please reply.