Encode ABI Parameters

EncodeAbiParameters encodes values from a list of ABI parameter definitions. It is a standalone function: no parsed ABI required. Use AbiParam for each parameter (Name optional, Type required, Components for tuples).

Import

import (
  "math/big"
  "github.com/ChefBingbong/viem-go/abi"
)

EncodeAbiParameters

import (
  "math/big"
  "github.com/ChefBingbong/viem-go/abi"
)

params := []abi.AbiParam{
  {Name: "x", Type: "string"},
  {Name: "y", Type: "uint256"},
  {Name: "z", Type: "bool"},
}
values := []any{"wagmi", big.NewInt(420), true}

encoded, err := abi.EncodeAbiParameters(params, values)
if err != nil {
  log.Fatal(err)
}
// encoded is []byte; use hex.EncodeToString(encoded) for 0x...

• Signature: EncodeAbiParameters(params []AbiParam, values []any) ([]byte, error)
• Params and values must have the same length.
• See ABI Types for AbiParam and Solidity → Go type mapping.

Go notes

• All encode functions return []byte; prefix with 0x when you need a hex string.
• For encoding function calldata (selector + args) with a parsed ABI, use contract-level EncodeFunctionData.

See also

• Decode Parameters — DecodeAbiParameters
• Parse ABI — get a parsed ABI for contract encoding
• Types — AbiParam and type mapping