auto-claim gas on tx submission

[igormcoelho]

@lock9 has raised some questions related to points, which we have previously debated by community, on several threads (although I cannot find them all here now...)

The challenge is: how to prevent people from requiring Gas, in order to operate Neo.

Since every tx is paid, even claiming would cost a little bit of gas, and Neo would be stuck for a while...

In my opinion, solution is simple: now that we have Native NEP-5 for GAS, it's possible to pre-calculate how much gas user would have unclaimed for that Neo, and allow that as network fee in that transaction.

Other point was discussed on other thread, I guess by @MorganDream too, where a GAS gateway could help in other operations... this same GAS gateway could operate Neo to GAS on runtime (as long as we define a NEP for it), and the same would apply for any other NEP-5 that wants to subsidize user operations.

Please comment here if I forgot threads or names... it's an important issue.

[igormcoelho]

One practical example for Gas gateways: neo-project/proposals#101

[rodoufu]

@igormcoelho I think Rick login here is @lock9

So, you are suggesting that the blockchain calculates the unclaimed GAS and sand it to the wallet every time it makes a transaction, aren't you?
This way the wallet'd spend the GAS for the transaction that it was already going to create and save fees for one Claim transaction.
For the users that are just holding tokens, maybe as an investment, they wouldn't receive it for the holding time, but if they are just holding they wouldn't need it.

What if a wallet receives 10 NEO and no gas? If every transaction needs gas, including the claim it wouldn't be able to claim it.
When this wallet gets enough unclaimed gas to make a transaction would it be able to make it even if all its gas is still unclaimed? Is it what you are thinking?

[shargon]

What if a wallet receives 10 NEO and no gas

He must wait or buy some gas

[roman-khimov]

I propose closing this one:

• an attempt to implement it in auto-claim gas if it's needed #2008 has failed (and I doubt any other approach could fix it)
• we've got Gleeder that covers some cases
• we may have Practical transaction sponsoring #2577 in future to cover some more

[shargon]

I propose closing this one:

• an attempt to implement it in auto-claim gas if it's needed #2008 has failed (and I doubt any other approach could fix it)
• we've got Gleeder that covers some cases
• we may have Practical transaction sponsoring #2577 in future to cover some more

What about modify the Gas.BalanceOf to be the claimed+unclaimed?

[roman-khimov]

It's NEP-17, I don't think it can do these tricks without breaking compatibility. We also have unclaimedGas in the NEO contract (since distribution is dependent on NEO).

[shargon]

It's NEP-17, I don't think it can do these tricks without breaking compatibility. We also have unclaimedGas in the NEO contract (since distribution is dependent on NEO).

We can use hardforks to ensure the compatibility.

[roman-khimov]

HF can do anything technically, but I mean conceptually, per NEP-17, balanceOf is supposed to be some real token amount that you can immediately spend. It's not the case for unclaimed GAS, it has to be minted (and callbacks have to be called for contracts). So while GAS is NEP-17 I don't think we can do this.

[shargon]

If you are able to spend this balance, and we increase totalsupply as well, we can do more or less the same as Aave.