# Automatically convert webtemplate .t.json to .opt format

**Category:** [Archetype Designer](https://discourse.openehr.org/c/archetype-designer/30)
**Created:** 2024-01-30 10:18 UTC
**Views:** 428
**Replies:** 5
**URL:** https://discourse.openehr.org/t/automatically-convert-webtemplate-t-json-to-opt-format/4885

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## Post #1 by @Cartwright

Hello,

I have linked my GitHub account to Archetype Designer for better template versioning.

Every time I save a new version of my template, a webtemplate ".t.json" is pushed to my GitHub repository. However, I need the .opt template format for later use and I want to avoid exporting the opt file manually from Archetype Designer for every new version.

Is there a way to change the configuration in Archetype Designer. Or any available tool to convert .t.json to .opt template format?

Thanks for your help

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## Post #2 by @ian.mcnicoll

Hi Kat,

Right now, no - you need to export the .opt manually, unless you are a paid customer of Better with a local hosted version of AD where there is an option to upload the .opt directly to a CDR.

I'd suggest that you probably don't want to export an .opt every time you change the t.json files - we would only recreate the .opt when there is a signifcant need e.g from update, api update. THere is a lot of modelling churn in AD that is probably best kept there and not always reflected in a new .opt.

Having said that, I agree it would be nice to be able to generate new .opts and other export formats in bulk or as a more auomated process.

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## Post #3 by @Cartwright

Thank you for your answer Ian!

I would expect that there might be an available open-source tool for doing such a conversion between template formats? I couldn't find much on GitHub repositories so far that could help. But thanks anyway!

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## Post #4 by @ian.mcnicoll

Both EhrBase and Better have open source code for converting .opt to webtemplates and example compositions but not for 'native json' to .opt

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## Post #5 by @tstolker

Hi iain,
I am really struggling with how to translate .opt to webtemplate. Can you point me to the specific open source components being used?

Thanks,

Theo

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## Post #6 by @SevKohler

check here https://github.com/ehrbase/openEHR_SDK there is some marshal and unmarshal logic.

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**Canonical:** https://discourse.openehr.org/t/automatically-convert-webtemplate-t-json-to-opt-format/4885
**Original content:** https://discourse.openehr.org/t/automatically-convert-webtemplate-t-json-to-opt-format/4885