Access to images via URL

[Syed_Muhammad_Qadeer]

1. What is the problem? Be very detailed.
I want to access images from ODK central which are submitted as part of the various form. These images should be accessed via URL such as https://central.bdrp.pk/v1/projects/2/forms/CBFS_WOS_DEMO_Formation_Form_v01/submissions/uuid:10a2a193-af41-4475-b866-6f94b5a73q9c84/13_18_56.jpg
However, when I access the URL, its shows the error
{"message":"Could not find the resource you were looking for.","code":404.1}

2. What app or server are you using and on what device and operating system? Include version numbers.
versions:
bc91dbf16c90e00545a55e637d3e9a6bc488f662
4f366fd674d83b7f2f156822e5a8d2ceca563b32 client (v1.2.0)
24d20de20fdf2e03b55e687542fbc0cae889a9ff server (v1.2.0)

3. What you have you tried to fix the problem?
I have used the following mechanism suggested by the valued member. But I am unable to access the images.

@LN

/v1/projects//forms//submissions//attachments/

4. What steps can we take to reproduce the problem?

5. Anything else we should know or have? If you have a test form or screenshots or logs, attach below.

[aankrah]

Hello @Syed_Muhammad_Qadeer,
sorry to hear you're unable to access your images attached to your submissions. From your post, I can attribute your hard luck to an omission in your URL. You posted

https://central.bdrp.pk/v1/projects/2/forms/CBFS_WOS_DEMO_Formation_Form_v01/submissions/uuid:10a2a193-af41-4475-b866-6f94b5a73q9c84/13_18_56.jpg

but really, what you need should look like

https://central.bdrp.pk/v1/projects/2/forms/CBFS_WOS_DEMO_Formation_Form_v01/submissions/uuid:10a2a193-af41-4475-b866-6f94b5a73q9c84/attachments/13_18_56.jpg

It will be beneficial to note that you can use the format

projectURL+"projects/"+str(projID)+"/forms/"+str(formID)+"/submissions/"+str(instanceID)+".xml"

to get the entire submission. This is beneficial to know the names of the attached multimedia and then use the format

projectURL+"projects/"+str(projID)+"/forms/"+str(formID)+"/submissions/"+str(instanceID)+"/attachments/"+mediaName

to access the individual attachments.

Hope this helps.

[Syed_Muhammad_Qadeer]

Dear @aankrah
This is super helpful and your prompt reply is exactly what I was looking for.
Have a great day.

[Matthew_White]

@aankrah

It will be beneficial to note that you can use the format

projectURL+"projects/"+str(projID)+"/forms/"+str(formID)+"/submissions/"+str(instanceID)+".xml"

to get the entire submission. This is beneficial to know the names of the attached multimedia

This definitely works! Note that you can also list the expected Submission Attachments by appending /attachments after the instance ID: https://odkcentral.docs.apiary.io/#reference/submissions/attachments/listing-expected-submission-attachments

[Raj_Pravat]

Hi @Matthew_White,

Downloading has been done. Do you have any idea - I want to put the central link directly in the html image source tag?

Kind regards,
Raj

[Matthew_White]

Hi @Raj_Pravat! That's not possible at this time because there's no way for the image tag to authenticate. We know that's a need. You can follow this topic for updates about that feature:

Can we hotlink ODK Central media files?

1. What is the problem? Be very detailed. I would like to hotlink media attachments hosted in ODK Central in the same way it was possible on ODK Aggregate. This would allow me to include attachments in data previews without having to download and then host them myself. (Auto-deployed pkgdown GitHub pages are a royal pain with custom resource files). In order to hotlink attachments, the attachment URL for a media attachment would need to be made public (disabled authentication). This could be a…

An option that works in some cases is to link to the image. There's a way to do that that will prompt the user to log in if they haven't already: https://docs.getodk.org/central-submissions/#accessing-submission-media-from-external-tools