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path: root/rpc/api/web3_args.go
blob: 38af7191e382f750a2a6f88bc93ae449f6e2cfc6 (plain) (tree)
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package api

import (
    "encoding/json"

    "github.com/ethereum/go-ethereum/rpc/shared"
)

type Sha3Args struct {
    Data string
}

func (args *Sha3Args) UnmarshalJSON(b []byte) (err error) {
    var obj []interface{}
    if err := json.Unmarshal(b, &obj); err != nil {
        return shared.NewDecodeParamError(err.Error())
    }

    if len(obj) < 1 {
        return shared.NewInsufficientParamsError(len(obj), 1)
    }

    argstr, ok := obj[0].(string)
    if !ok {
        return shared.NewInvalidTypeError("data", "is not a string")
    }
    args.Data = argstr
    return nil
}