# EHRbase: Stuck in "2.5. Step 4: Load Data"
**URL:** https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885
**Category:** Platform
**Tags:** ehrbase
**Created:** [2 August 2022 07:51 UTC](https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885 "2022-08-02T07:51:57Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@daguanyu](https://discourse.openehr.org/u/daguanyu)
#### Post date: [2 August 2022 07:51 UTC](https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885/1 "2022-08-02T07:51:57Z")
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 “[GitHub - nedap/ehrbase\_client\_library](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 Also it seems that “/nedap/ehrbase\_client\_library” is no longer maintained.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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### Author:  [@birger.haarbrandt](https://discourse.openehr.org/u/birger.haarbrandt)
#### Post date: [2 August 2022 10:54 UTC](https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885/2 "2022-08-02T10:54:09Z")
Hi @daguanyu,
please have a try with this Postman Collection:
[openEHR WebTemplates Example.postman\_collection.json](https://discourse.openehr.org/uploads/short-url/4eCgulcNFI5noCqAQRTN7z9lDBe.json) (1.1 MB)
Please let me know if this works for you!
Best,
Birger
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### Author:  [@pablo](https://discourse.openehr.org/u/pablo)
#### Post date: [2 August 2022 11:37 UTC](https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885/3 "2022-08-02T11:37:40Z")
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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### Author:  [@daguanyu](https://discourse.openehr.org/u/daguanyu)
#### Post date: [3 August 2022 02:03 UTC](https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885/4 "2022-08-03T02:03:14Z")
hi @pablo , I tried and failed to register:
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### Author:  [@daguanyu](https://discourse.openehr.org/u/daguanyu)
#### Post date: [3 August 2022 02:46 UTC](https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885/5 "2022-08-03T02:46:43Z")
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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### Author:  [@pablo](https://discourse.openehr.org/u/pablo)
#### Post date: [3 August 2022 12:40 UTC](https://discourse.openehr.org/t/ehrbase-stuck-in-2-5-step-4-load-data/2885/6 "2022-08-03T12:40:31Z")
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
