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Last updated on January 1, 1970

2 min read

RPC Method (eth_call) example for Arbitrum

eth_call

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Executes a new message call immediately without creating a transactionon the block chain.

Parameters

object - json object

The transacion call object in format: { "from": "address" (optional, string) - The address the transaction is sent from. "to": "address" (optional, string) - The address the transaction is directed to. "gas": "quantity" (optional, string) - Integer of the gas provided for the transaction execution. eth_call consumes zero gas, but this parameter may be needed by some executions. "gasPrice": "quantity" (optional, string) - Integer of the gasPrice used for each paid gas "value": "quantity" (optional, string) - Integer of the value sent with this transaction "data": "data" (optional, string) - Hash of the method signature and encoded parameters. }

QUANTITY|TAG - string

integer block number, or the string "latest", "earliest" or "pending".

Request

wscat -c wss://arbitrum.getblock.io/YOUR-API-KEY/mainnet/ 
# wait for connection and send the request body 
{"jsonrpc": "2.0",
"method": "eth_call",
"params": [{"from": "0xb60e8dd61c5d32be8058bb8eb970870f07233155", "to": "0xd46e8dd67c5d32be8058bb8eb970870f07244567", "gas": "0x76c0", "gasPrice": "0x9184e72a000", "value": "0x9184e72a", "data": "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675"}, "latest"],
"id": "getblock.io"}

Response

{
    "error": {
        "code": -32000,
        "message": "err: insufficient funds for gas * price + value: address 0xb60E8dD61C5d32be8058BB8eb970870F07233155 have 0 want 304000002441406250 (supplied gas 30400)"
    },
    "id": "getblock.io",
    "jsonrpc": "2.0"
}