# Creating and retrieving flat composition

**Category:** [Tools](https://discourse.openehr.org/c/tool-dev/36)
**Created:** 2020-12-02 08:54 UTC
**Views:** 879
**Replies:** 1
**URL:** https://discourse.openehr.org/t/creating-and-retrieving-flat-composition/1135

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## Post #1 by @Raksha_R

Hi,

I'm trying to create flat composition of a template  using docker container. I'm facing  issues mentioned below after restarting docker composer.

1. During first try I'm able to create a composition,  But after restarting, If I commit a composition I will get an error as mentioned below:

{
    "error": "java.lang.IllegalArgumentException: Composition missing mandatory attribute: language",
    "status": "Internal Server Error"
}

2.  Secondly,  I'm able to retrieve a composition using compositionId which is fetched after committing a composition. But after restarting, If I try to retrieve  a same composition I can see different path coming up in the link attached below:

[compositionBody.odt|attachment](upload://jSHoR5xju2Kmn72XxqI9l5EA3DT.odt) (19.3 KB) 

Please find the attached template for your reference.

[EHRN Diagnosis.v1.oet|attachment](upload://1MdeLy3zR1h8ibrmuAtfEFXCkTQ.oet) (3.0 KB) 
 

Thanks,
Raksha R

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## Post #2 by @birger.haarbrandt

Hi Raksha,

flat format is in a beta status at the moment and we highly appreciate all issues reported. Would you mind creating an issue in github with the content provided here?

https://github.com/ehrbase/ehrbase

Best,

Birger

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**Canonical:** https://discourse.openehr.org/t/creating-and-retrieving-flat-composition/1135
**Original content:** https://discourse.openehr.org/t/creating-and-retrieving-flat-composition/1135