topic Re: Limitation in JSON length when using POST in tRestClient in Talend Studio

Limitation in JSON length when using POST in tRestClient

Anonymous — Sat, 16 Nov 2024 11:16:51 GMT

Hello,
I'm currently running v5.6.0 of TOS for Data Integration, and it seems like I'm running into issues passing JSON strings with around 4500-5000 characters via POST in tRESTClient. With smaller strings, it passes the data just fine. However, with the larger strings, I get null on the service side every time. I thought this might have to do with the field's length in the schema, but I tried increasing the value and removing it all together with no joy.
For testing purposes, I have created a test job consisting of a tFixedFlowInput connected tp the tRESTClient. In the tFixedFlowInput component, I'm passing the json string manually with all the quotes delimited. In the tRestClient component, I'm passing a token via query parameter.
Any help would be greatly appreciated. Thanks in advance!

Re: Limitation in JSON length when using POST in tRestClient

Anonymous — Tue, 24 Mar 2015 01:26:42 GMT

Hi
Do you use Talend ESB product to build the rest web service or it is hosted by other provider?
Best regards
Shong

Re: Limitation in JSON length when using POST in tRestClient

Anonymous — Tue, 24 Mar 2015 18:56:16 GMT

Hi, Shong - the service is built and hosted externally.

Re: Limitation in JSON length when using POST in tRestClient

Anonymous — Sun, 29 Mar 2015 03:21:16 GMT

Hi
I am not sure the problem is caused by tRestClient component, I have built a restful webservice with Talend ESB, called the web service and pass a string more than 6500 characters to it, it works fine.
Best regards
Shong

Re: Limitation in JSON length when using POST in tRestClient

Anonymous — Mon, 30 Mar 2015 18:07:41 GMT

Shong, could you please post screenshots of your job and tRestClient settings? Thanks.

Re: Limitation in JSON length when using POST in tRestClient

Anonymous — Wed, 01 Apr 2015 08:47:01 GMT

Hi
I just use a tRowGenerator to generate a string with 6500 characters and pass it to the restful webservice, I run the job and I can see the webservice server receive the string and process it, return the correct the result.

Re: Limitation in JSON length when using POST in tRestClient

Anonymous — Wed, 01 Apr 2015 15:21:31 GMT

Shong - would it make a difference using JSON as the content type of the tRestClient?

Re: Limitation in JSON length when using POST in tRestClient

Anonymous — Wed, 01 Apr 2015 17:06:42 GMT

I change the content type from XML to json, it also works. but I did't try to send a json string as you did, can you email me your json string for testing?
Best regards
Shong

Re: Limitation in JSON length when using POST in tRestClient

Anonymous — Thu, 02 Apr 2015 02:41:28 GMT

Hi
I have tested your json string and it also works for my restful webservice, I have sent the demo jobs to you.
Best regards
Shong