> For the complete documentation index, see [llms.txt](https://docs.altlayer.io/altlayer-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.altlayer.io/altlayer-documentation/rollup-launchpad/api-and-sdks/creating-flash-layer.md). # Creating Flash Layer **Request** Create a new free trial flashlayer. ```javascript POST /v1/flashlayer/create ``` **Request body** {% tabs %} {% tab title="Free Tier" %} ```json { "flashlayer": { "settings": { "fcfs": true, // first in first serve mod "gasless": true, // gasless "blockTime": "0.5", // block time in sec "tokenSymbol": "ETH", // token symbol "blockGasLimit": "70000000", // block gas limit in wei "tokenDecimals": "18", // token decimals "genesisAccounts": [ // list of genesis accounts { "account": "0x55085B2Fd83323d98d30d6B3342cc39de6D527f8", "balance": "21000000000000000000000000" }, { "account": "0x9434e7d062bF1257BF726a96A83fAE177703ccFD", "balance": "21000000000000000000000000" } ] }, "name": "freetrial" // flashlayer name }, "freeTrial": true } ``` {% endtab %} {% tab title="Eigenlayer Restaking Tier" %} ```json { "restakingTrial": true, "walletSign": { "address": "", "sign": "", "ts": "" }, "flashlayer": { "name": "", "settings": { "tokenDecimals": "18", "genesisAccounts": [ { "account": "0x55085B2Fd83323d98d30d6B3342cc39de6D527f8", "balance": "21000000000000000000000000" }, { "account": "0x9434e7d062bF1257BF726a96A83fAE177703ccFD", "balance": "21000000000000000000000000" } ], "blockGasLimit": "70000000", "gasless": true, "fcfs": true, "tokenSymbol": "ETH", "blockTime": "1" } } } ``` To generate `walletSign` section, you can use the following code snippet ````typescript ``` const { ethers } = require("ethers"); const provider = new ethers.providers.JsonRpcProvider(); const privateKey = ``; const wallet = new ethers.Wallet(privateKey, provider); async function sign() { var ts = Math.round(+new Date() / 1000); const domain = { name: "Altlayer Launchpad", }; const types = { WalletSign: [ { name: "ts", type: "uint256" }, { name: "address", type: "address" }, ], }; const value = { ts: ts, address: wallet.address, }; const signature = await wallet._signTypedData(domain, types, value); console.log("ts:", ts.toString()); console.log("address:", wallet.address); console.log("sign:", signature); } sign(); ```` Please ensure that your address has restaked at the Eigenlayer testnet. For more information, you can refer to [Prerequisite - Restake with EigenLayer](/altlayer-documentation/rollup-launchpad/creating-rollup-restaking-tier/prerequisite-restake-with-eigenlayer.md). {% endtab %} {% endtabs %}
PropertyTypeDescription
fcfsbool Where transaction processing mode is first come first serve or priority gas auction
gaslessboolwhether network gas price is priced at 0 gas or not
blocktimefloatBetween 0.5 to 60
tokenSymbolstringBetween 2 to 6 characters
blockGasLimituintBetween 30,000,000 to 60,000,000
tokenDecimalsuintHigh recommended to keep it at 18 decimals
genesislistlist of genesis account and balances
namestringName of the flash layer
Between 2 and 12 characters, lowercase and cannot begin with numbers.
freetrialboolset to true to use free trial tier
restakingTrialboolset to true to use restaking tier
**Response** ```json { "flashlayer": { "name": "freetrial", "status": "STATUS_INITIALIZING", "settings": { "blockTime": 0.5, "gasless": true, "fcfs": true, "genesisAccounts": [ { "account": "0x55085B2Fd83323d98d30d6B3342cc39de6D527f8", "balance": "21000000000000000000000000" }, { "account": "0x9434e7d062bF1257BF726a96A83fAE177703ccFD", "balance": "21000000000000000000000000" } ], "tokenDecimals": "18", "tokenSymbol": "ETH", "blockGasLimit": "70000000" }, "resources": { "rpc": "https://flashlayer.alt.technology/freetrial", "explorer": "https://explorer.alt.technology?rpcUrl=https://flashlayer.alt.technology/freetrial", "faucet": "https://faucet.alt.technology?chainId=10000001", "chainId": "10000001", "rpcWs": "wss://flashlayer.alt.technology/freetrial" }, "createdAt": "2023-08-03T10:13:27.491183Z", "id": "1", "tier": "FLASHLAYER_TIER_FREE_TRIAL", } } ``` {% tabs %} {% tab title="CURL" %} ```bash ## /v1/flashlayer/create curl -X "POST" "https://dashboard-api.alt.technology/v1/flashlayer/create" \ -H 'Content-Type: application/json' \ -H 'Accept: application/json' \ -H 'Authorization: Bearer {access_token}' \ -d $'{ "freeTrial": true, "flashlayer": { "name": "freetrial", "settings": { "tokenDecimals": "18", "genesisAccounts": [ { "account": "0x55085B2Fd83323d98d30d6B3342cc39de6D527f8", "balance": "21000000000000000000000000" }, { "account": "0x9434e7d062bF1257BF726a96A83fAE177703ccFD", "balance": "21000000000000000000000000" } ], "blockGasLimit": "70000000", "gasless": true, "fcfs": true, "tokenSymbol": "ETH", "blockTime": "0.5" } } }' ``` {% endtab %} {% tab title="Golang" %} ```go package main import ( "fmt" "io" "net/http" "bytes" ) func sendV1FlashlayerCreate() { // /v1/flashlayer/create (POST https://dashboard-api.alt.technology/v1/flashlayer/create) json := []byte(`{"freeTrial": true,"flashlayer": {"name": "freetrial","settings": {"tokenDecimals": "18","genesisAccounts": [{"account": "0x55085B2Fd83323d98d30d6B3342cc39de6D527f8","balance": "21000000000000000000000000"},{"account": "0x9434e7d062bF1257BF726a96A83fAE177703ccFD","balance": "21000000000000000000000000"}],"blockGasLimit": "70000000","gasless": true,"fcfs": true,"tokenSymbol": "ETH","blockTime": "0.5"}}}`) body := bytes.NewBuffer(json) // Create client client := &http.Client{} // Create request req, err := http.NewRequest("POST", "https://dashboard-api.alt.technology/v1/flashlayer/create", body) // Headers req.Header.Add("Content-Type", "application/json") req.Header.Add("Accept", "application/json") req.Header.Add("Authorization", "Bearer {access_token}") ## /v1/flashlayer/create curl -X "POST" "https://stg-dashboard-api.alt.technology/v1/flashlayer/create" \ -H 'Content-Type: application/json' \ -H 'Accept: application/json' \ -H 'Authorization: Bearer {access_token}' \ -d $'{ "freeTrial": true, "flashlayer": { "name": "freetrial", "settings": { "tokenDecimals": "18", "genesisAccounts": [ { "account": "0x55085B2Fd83323d98d30d6B3342cc39de6D527f8", "balance": "21000000000000000000000000" }, { "account": "0x9434e7d062bF1257BF726a96A83fAE177703ccFD", "balance": "21000000000000000000000000" } ], "blockGasLimit": "70000000", "gasless": true, "fcfs": true, "tokenSymbol": "ETH", "blockTime": "0.5" } } }' // Fetch Request resp, err := client.Do(req) if err != nil { fmt.Println("Failure : ", err) } // Read Response Body respBody, _ := io.ReadAll(resp.Body) // Display Results fmt.Println("response Status : ", resp.Status) fmt.Println("response Headers : ", resp.Header) fmt.Println("response Body : ", string(respBody)) }// Some code ``` {% endtab %} {% tab title="Python" %} ```python # Install the Python Requests library: # `pip install requests #!/usr/bin/python3 import requests import json def send_request(): # /v1/flashlayer/create # POST https://dashboard-api.alt.technology/v1/flashlayer/create try: response = requests.post( url="https://dashboard-api.alt.technology/v1/flashlayer/create", headers={ "Content-Type": "application/json", "Accept": "application/json", "Authorization": "Bearer {access_token}" }, data=json.dumps({ "freeTrial": True, "flashlayer": { "name": "freetrial", "settings": { "tokenDecimals": "18", "genesisAccounts": [ { "account": "0x55085B2Fd83323d98d30d6B3342cc39de6D527f8", "balance": "21000000000000000000000000" }, { "account": "0x9434e7d062bF1257BF726a96A83fAE177703ccFD", "balance": "21000000000000000000000000" } ], "blockGasLimit": "70000000", "gasless": True, "fcfs": True, "tokenSymbol": "ETH", "blockTime": "0.5" } } }) ) print('Response HTTP Status Code: {status_code}'.format( status_code=response.status_code)) print('Response HTTP Response Body: {content}'.format( content=response.content)) except requests.exceptions.RequestException: print('HTTP Request failed')py ``` {% endtab %} {% endtabs %} --- # Agent Instructions This documentation is published with GitBook. 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