Dashboard Download Method not allowed

ohdearaugustin · October 15, 2021, 1:40pm

What are you trying to achieve?
I want to automate the download of dashboards from Dashboards | Grafana Labs. Before downloading the json I was trying to see if the dashboard exists. Therefore I just wanted to do a HEAD request.
How are you trying to achieve it?
curl https://grafana.com/api/dashboards/3662/revisions/2/download -I
What happened?
Result of curl:

HTTP/2 405 
server: nginx/1.17.9
date: Fri, 15 Oct 2021 13:33:46 GMT
x-frame-options: DENY
cache-control: no-cache, no-store, must-revalidate
pragma: no-cache
expires: Fri, 15 Oct 2021 13:33:46 GMT
allow: GET
via: 1.1 google
alt-svc: clear

The head request was denied.

What did you expect to happen?
That the head request would work.

There is no technical reason to block those HEAD requests. Why is it implemented like that.

My workaround is not to just download the file, but this also genereates a lot of useless traffic for Grafana and also the person, who just wants to check if that dashboard exists.

mattabrams · October 22, 2021, 6:50am

Hi @ohdearaugustin

not a direct answer to your question but this script for download dashboards in bulk might be of interest to you:

gist.github.com

https://gist.github.com/crisidev/bd52bdcc7f029be2f295

grafana-dashboard-exporter

KEY=XXXXXXXXXXXX
HOST="https://metrics.crisidev.org"

mkdir -p dashboards && for dash in $(curl -k -H "Authorization: Bearer $KEY" $HOST/api/search\?query\=\& |tr ']' '\n' |cut -d "," -f 5 |grep slug |cut -d\" -f 4); do 
  curl -k -H "Authorization: Bearer $KEY" $HOST/api/dashboards/db/$dash > dashboards/$dash.json 
done

ohdearaugustin · November 16, 2021, 3:22pm

Hi @mattabrams,

yeah I found out how to do it, but I think the default setting of not allowing HEAD request is just completely strange and not standard. I just try to download them directly and check for errors afterwards.

BR

mattabrams · November 18, 2021, 7:20pm

glad you got unblocked on this. Can’t speak to why we handle headers like that. This might make a good bug report in the repo…

system · October 15, 2022, 1:41pm

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