# EHRbase: Stuck in "2.5. Step 4: Load Data"

**Category:** [Platform](https://discourse.openehr.org/c/platform-implem/7)
**Created:** 2022-08-02 07:51 UTC
**Views:** 621
**Replies:** 5
**URL:** https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885

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## Post #1 by @daguanyu

I'm new to EHRBase and use docker images to learn EHRbase. According to the document, I have successfully performed the first three steps of "2. Getting Started" (including Data Models, Upload a Template and Create an EHR) . 

When trying Step 4: Load Data:

I firstly built the Client Library from "https://github.com/nedap/ehrbase_client_library". But when I tried to  create the Java classes from the OPT, “nullPointerException” was reported. It seems that the Client Library cannot correctly analysis the OPT.  Also it seems that "/nedap/ehrbase_client_library" is no longer maintained.

Then, I tried to use Flat Format. I tried to send request to "/ehrbase/rest/ecis/v1/composition" according to the "Flat.postman_collection" and the document.  but it returned "'error': 'Bad Request'". So I wonder if there is a detailed document for the API endpoints for the Flat Format to help me use the APIs properly?

What should I do to Load Data successfully?

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## Post #2 by @birger.haarbrandt

Hi @daguanyu,

please have a try with this Postman Collection: 

[openEHR WebTemplates Example.postman_collection.json|attachment](upload://4eCgulcNFI5noCqAQRTN7z9lDBe.json) (1.1 MB)

Please let me know if this works for you!

Best,

Birger

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## Post #3 by @pablo

Hi @daguanyu you can use the [openEHR Toolkit](https://toolkit.cabolabs.com/) to generate a JSON based on your operational template (OPT) and just send a POST request to EHRBASE with that payload.

The toolkit generates a COMPOSITION with random data based on your template. Then, if you want, you can change some values manually of via software, then commit the composition.

For me (I do a lot of testing) it's the fastest way of having some data loaded for testing.

Hope that helps.

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## Post #4 by @daguanyu

hi @pablo , I tried and failed to register:
![image|690x341](upload://7VrqxusAKL9KXWd3GhX6KeIUsOx.png)

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## Post #5 by @daguanyu

Hi @birger.haarbrandt . 

thank you very much. this one is more detailed and easier to be understood.

thank you again for your help!

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## Post #6 by @pablo

Sorry to hear about that, let me look what is going on with the sign up form.

@daguanyu do you see the recaptcha box in the sign up form? It should appear there at the bottom

![Screenshot 2022-08-03 at 11-42-19 CaboLabs openEHR Toolkit (CoT)|690x466](upload://WXMGBtXxnzzv0vYW37cWoAIb2s.png)

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**Canonical:** https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885
**Original content:** https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885