Hi, does anyone have successful experience with Chainlink VRF here? How do I get to send 0.1 LINK when calling getRandomNumber function interacting with this smart contract?

https://docs.chain.link/docs/get-a-random-number

You should load your contract beforehand with link

And it'll automatically deduct

@mrrobot3_3 Thanks for this. I assume it cannot be done on remix?

Never mind, it can. https://docs.chain.link/docs/fund-your-contract

Hey Mr. Robot, is it true for every seed provided, only one random number can be generated via Chainlink VRF? If so, that would be really costly to run a DAPP with randomness. As of now, the unit price is 0.1 LINK or roughly $2.8 to get a single random number!

Or is it generating one single random number per block given one seed?

I think its one number per call

Re: cost, it looks like documentation was updated here: https://docs.chain.link/docs/vrf-contracts
"For the most efficient consumption of Chainlink VRF on Ethereum, please contact us at [email protected] to create a payment channel, through which we can provide VRF to you at the cost of Ethereum network gas fees. You will only be paying for the gas costs incurred by the Chainlink node from calling your smart contract."

About cost, you could get a little crafty with the random number and generate any amount of random numbers you want

I can see what you mean. I'll do some experiments.

Yes, Your contract must have required amount.