How to change a request body automatically according to the previous response?

[Danny]

First ,I want to say that fiddler is a reallllllly useful tool !

However, I have been disturbed for a long time about this problem. So here is the problem.

 
Step 1.

I received a response from server like this   (some useless headers have been omitted) :
 

HTTP/1.1 200 OK
Server: GewaServer3
Content-Type: text/html;charset=UTF-8
Content-Length: 48

var data = {"retval":"145918761","success":true}

 

Step 2.

After receiving the previous response, I hope fiddler could automatically send the request like this:
 

POST http://www.gewa.com/ajax/trade/save.xhtml HTTP/1.1
Host: www.gewa.com
Connection: keep-alive
Cookie: bdshare_firstime=1385011581672;
 
code=1321&Id=145918761&type=1556
 


But  I hope this part in request body 

(Id=145918761)

will be automatically changed according to the response body I received before 

("retval":"145918761")

 
I try to find a way to solve the problem for many days but I couldn’t.

If anyone could help I would be soooooo grateful!

Thanks again!
 

 

 

 

[Eric Lawrence]

Hello, Danny--

When you say "you hope Fiddler could automatically send the request"-- do you mean that Fiddler would create a new request, or that Fiddler would change a subsequent request that was sent by the client software?

You can see some examples of how to send requests automatically from script:
https://groups.google.com/forum/#!searchin/httpfiddler/utilissuerequest/httpfiddler/8T4ZOsOm20E/W5A_d-NEJDYJ

and here:

https://groups.google.com/forum/#!searchin/httpfiddler/utilissuerequest/httpfiddler/CyXSDkug_es/V3zBA0OeNjcJ


Regards,
Eric Lawrence
Telerik

 

 

[Danny]

Hi Eric Lawrence

Thanks for your reply.

By saying that, I mean that Fiddler would create a new request.
 
So here is the whole progress:

1.    
When fiddler receive a response from www.gewa.com and the body contain ["success":true],
then copy the number after [terval].  (which is 145918761 in my first post)

2.    
Fiddler create a new request(like the request in my first post). But I hope fiddler could replace the number in request body 
after [id=]

3.    Send the new request.

Sorry for bothering you again.  Thank you!

[Danny]

Hello Eric,

I have made some progress.

Here is the script i wrote:

if (oSession.HostnameIs("www.gewa.com")){ 
            oSession.utilDecodeResponse();
             if (oSession.utilFindInResponse("false", true) > -1){ 
             var oBody = oSession.GetResponseBodyAsString (); 
               var a = 'var data = {"retval":"'
               var b = '","success":true}'
                oBody = oBody.replace(a, "");
                oBody = oBody.replace(b, "")  
                FiddlerObject.utilIssueRequest(s);
                } 
 } 
Now I meet a new problem, which is "how to create a new request"

Having read some docs, i found this two may be useful
1.  FiddlerObject.utilIssueRequest(s);
2.  FiddlerApplication.oPorxy.InjectCustomRequest

However, the first could be used only when a client create a request before.
So the second may be helpful.  But i don't know how to use it. Could you show me how to do that ?

Another thing is , I hope the new request that fiddler created would be sent 20 times.  But i want to add some delay between each time. 
Can we do this in fiddler script?

Thank you again for helping me.

Have a nice day!

           

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Danny]

Hello again,

I just find this :

FiddlerApplication.oProxy.SendRequest(oSession.oRequest.headers, oSession.requestBodyBytes, null);

May be this will be pretty helpful for me.

The requests that every time i want fiddler create is almost the same except for the number after "id=".

Could you show me how to write this part?

Thanks a lot.

[Eric Lawrence]

Hi, Danny--

Unfortunately, your question is too vague for me to be of much help. You can modify the request body by editing the requestBodyBytes array.

Regards,
Eric Lawrence
Telerik

 

 

[Danny]

Hello Eric，

Thanks again for your help.

Have a nice day