Manually we could download json. But multiple dashbaord json how could download by scipt or api
THANK YOU!!
~ the grafana team
Hi @sagarsorout,
We do have HTTP API for Dashboard which can be used to download the Dashboard JSON:
Also, there are some other some good 3rd-party tools for downloading and exporting dashboards, and other grafana data for e.g. settings etc. Here is a list which we have posted. We would suggest that you check it out :
I hope this helps. 
Why are you attemtping to do this, what is the end goal?
Is it to migrate dashboards to another server or to save them in a code repository?