JonathonDunford
commented
6 years ago 
Actually, I'm pretty sure you could just make the default price change according to ethgasstation.info. That'd be a nice addition!
Open JonathonDunford opened 6 years ago
JonathonDunford
commented
6 years ago
Actually, I'm pretty sure you could just make the default price change according to ethgasstation.info. That'd be a nice addition!
JonathonDunford
commented
6 years ago 
@mariohm1311 For sure, default should be adjusted automatically, but I wonder if we should give users quick access to ethgasstation's "SafeLow" and "Fast" prices, too.
JonathonDunford
commented
6 years ago
Definitely, include those options too with a small explanation / median time for each level.
On Jan 8, 2018 11:34 PM, "Arseniy Ivanov" notifications@github.com wrote:
@mariohm1311 https://github.com/mariohm1311 For sure, default should be adjusted automatically, but I wonder if we should also give users quick access to ethgasstation's "SafeLow" and "Fast" prices, too.
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JonathonDunford
commented
6 years ago 
Please correct me if i am wrong, but the gas prices needs to be higher than the ethergas station price as the transactions are going to a contract witch require more gas.
JonathonDunford
commented
6 years ago
@wordsandstuff Do you have a source for that information?
To clarify: "gas" is a measure of computation required to perform a transaction,. It is true that contracts require more "gas" because they require more computational steps than a regular fund transfer; however, a transaction requires the same amount of "gas" at any time. The sender can only set the maximum amount of computation they allow a transaction to take, "gas limit". Contracts typically require gas limit of 250,000.
You buy units of computation from miners at a price. That price is referred to as "gas price". This price can fluctuate a bit depending on network-wide demand for computation. This is what we're seeking to adjust dynamically.
Now: that is the theory of it. ethgasstation.info has a small note saying that gas prices may be different for addresses with a large number of pending transactions. @wordsandstuff, if you have any info on that, that'd be most welcome.
JonathonDunford
commented
6 years ago
NB: MetaMask is experimenting with UI for letting the user set gas prices intuitively, too! https://github.com/MetaMask/metamask-extension/issues/3037
JonathonDunford
commented
6 years ago
Yup, you got it right. What you need to adjust on a per-transaction basis is the gas limit, since you can already pull the gas price from EthGasStation.
The quick workaround which has been commented is just leaving the gas limit on 250,000 (the maximum), and have the network return the unused amount. I would prefer it to adjust on a request basis instead, since if you are making several transactions you could be incurring on 3-4 times the amount of has you need, which might be more than the available ETH and therefore you wouldn't be able to pay (even if most of that gas will not be used). I'm not sure how straightforward it'd be to implement it, but Metamask automatically sets up the gas limit for you, so I guess it isn't that complicated.
On Jan 19, 2018 00:23, "Arseniy Ivanov" notifications@github.com wrote:
@wordsandstuff https://github.com/wordsandstuff Do you have a source for that information?
To clarify: "gas" is a measure of computation required to perform a transaction,. It is true that contracts require more "gas" because they require more computational steps than a regular fund transfer; however, a transaction requires the same amount of "gas" at any time. The sender can only set the maximum amount of computation they allow a transaction to take, "gas limit". Contracts typically require gas limit of 250,000.
You buy units of computation from miners at a price. That price is referred to as "gas price". This price can fluctuate a bit depending on network-wide demand for computation. This is what we're seeking to adjust dynamically.
Now: that is the theory of it. ethgasstation.info has a small note saying that gas prices may be different for addresses with a large number of pending transactions. @wordsandstuff https://github.com/wordsandstuff, if you have any info on that, that'd be most welcome.
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JonathonDunford
commented
6 years ago
and have the network return the unused amount That already happens. The transaction fee taken from your account is the lesser of (gas limit gas price) and (gas usage gas price).
You also typically cannot send a transaction until the previous one is mined, so multiple transactions shouldn't make a difference.
JonathonDunford
commented
6 years ago
I'm pretty sure I've sent transactions back to back by hoping they would be verified in the right order and setting the nonce manually. I'm not quite sure though.
On Jan 19, 2018 01:13, "Arseniy Ivanov" notifications@github.com wrote:
and have the network return the unused amount That already happens. The transaction fee taken from your account is the lesser of (gas limit gas price) and (gas usage gas price).
You also typically cannot send a transaction until the previous one is mined, so multiple transactions shouldn't make a difference.
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JonathonDunford
commented
6 years ago 
What about making the default gas price equal to ethgasstation price plus one? Or would that just be overkill?
JonathonDunford
commented
6 years ago
That's what I usually do. Most of the times, adding one to the median price nets a sizeable improvement (since the median price is used by many services).
On Jan 19, 2018 21:44, "mhyytine" notifications@github.com wrote:
What about making the default gas price equal to ethgasstation price plus one? Or would that just be overkill?
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JonathonDunford
commented
6 years ago 
a simpler api for gas price: https://gasprice.poa.network/
i'm the author, see https://github.com/banteg/gasprice
The interface should suggest an optimal gas price based on information from https://ethgasstation.info/.