Skip to content

feat(entropy): More best practices #337

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 4 commits into from
Jun 13, 2024
Merged

feat(entropy): More best practices #337

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
e3fd846
feat(entropy): More best practices
m30m Jun 12, 2024
ffc9216
Better spacing
m30m Jun 12, 2024
bba5d65
Address comments
m30m Jun 13, 2024
9f03689
Update etherlink gaslimit
m30m Jun 13, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions components/EntropyDeployments.tsx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -163,7 +163,7 @@ export const EntropyDeployments: Record<string, EntropyDeployment> = {
"berachain-testnet-v2": {
rpc: "https://evm-rpc-bera.rhino-apis.com/",
network: "testnet",
delay: "",
delay: "https://bartio.beratrail.io/address/$ADDRESS",
address: "0x36825bf3Fbdf5a29E2d5148bfe7Dcf7B5639e320",
explorer: "",
gasLimit: "500K",
Expand Down Expand Up @@ -236,7 +236,7 @@ export const EntropyDeployments: Record<string, EntropyDeployment> = {
address: "0x23f0e8FAeE7bbb405E7A7C3d60138FCfd43d7509",
explorer: "https://testnet-explorer.etherlink.com/address/$ADDRESS",
delay: "",
gasLimit: "500K",
gasLimit: "15M",
network: "testnet",
rpc: "https://node.ghostnet.etherlink.com",
},
Expand Down
15 changes: 15 additions & 0 deletions pages/entropy/best-practices.mdx
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,20 @@
# Best Practices

## Limit gas usage on the callback

Keeping the callback function simple is crucial because the entropy providers limit gas usage.
This ensures gas usage is predictable and consistent, avoiding potential issues with the callback.

For example, if you want to use entropy to generate a random number for each player in a round of game,
you need to make sure that the callback function works for the maximum number of players that can be in each round.
Otherwise, the callbacks will work for some rounds with fewer players, but will fail for rounds with more players.

Multiple solutions are possible to address this problem. You can store the random number received from the callback and
either ask users to submit more transactions after the callback to continue the flow or run a background crank service
to submit the necessary transactions.

The gas limit for each chain is listed on the [contract addresses](./contract-addresses) page.

## Generating random values within a specific range

You can map the random number provided by Entropy into a smaller range using the solidity [modulo operator](https://docs.soliditylang.org/en/latest/types.html#modulo).
Expand Down