eth_callMany | Alchemy Docs

1 import requests 2 3 url = "https://flow-mainnet.g.alchemy.com/v2/:apiKey" 4 5 payload = { 6 "0": [ 7 { 8 "transactions": [ 9 { 10 "from": "0x1985ea6e9c68e1c272d8209f3b478ac2fdb25c87", 11 "to": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913", 12 "gas": "0x0f4240", 13 "gasPrice": "0x7896e72a", 14 "data": "0xa9059cbb000000000000000000000000bc0e63965946815d105e7591407704e6e1964e590000000000000000000000000000000000000000000000000000000005f5e100" 15 }, 16 { 17 "to": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913", 18 "gasPrice": "0x7896e72a", 19 "data": "0x70a08231000000000000000000000000bc0e63965946815d105e7591407704e6e1964e59" 20 } 21 ], 22 "blockOverride": { "blockNumber": "0xbb5fe9" } 23 } 24 ], 25 "1": { 26 "blockNumber": "0xbb5fe9", 27 "transactionIndex": 1 28 }, 29 "3": 5000 30 } 31 headers = {"Content-Type": "application/json"} 32 33 response = requests.post(url, json=payload, headers=headers) 34 35 print(response.json())

1 { 2 "jsonrpc": "2.0", 3 "id": "1", 4 "result": [ 5 [ 6 { 7 "value": "0x0000000000000000000000000000000000000000000000000000000000000001" 8 }, 9 { 10 "value": "0x0000000000000000000000000000000000000000000000000000000005f5e100" 11 } 12 ] 13 ] 14 }

Executes one or more bundles of eth_call-style transactions against an ephemeral state, without committing state to the chain. Transactions within each bundle are executed sequentially: state changes from earlier transactions in the bundle are visible to later ones. You can optionally override selected block header fields per bundle.

Path parameters

apiKeystringRequired

Request

This endpoint expects an object.

Bundleslist of objectsRequired

A list of bundles to execute. Each bundle specifies a list of transactions (executed in order) and may include a per-bundle block header override.

Simulation contextobjectRequired

The base context for the simulation. If a bundle supplies blockOverride, it takes precedence for that bundle. transactionIndex is 0-based within the referenced block.

State overridesmap from strings to objectsOptional

Optional per-account state overrides applied during execution, identical in shape to the eth_call state override parameter.

TimeoutintegerOptional>=1

Maximum running time for the simulations in milliseconds. If omitted, the node’s default is used (commonly 5000).

Response

A list with one entry per bundle. Each bundle entry is an array with one result per transaction in that bundle, in execution order. Each transaction result is either a successful return value (ABI-encoded bytes), or an error describing the revert/failure.

object