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feat: add OP_RETURN output support for PSET creation #41

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feat: add OP_RETURN output support for PSET creation #41

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13 changes: 13 additions & 0 deletions src/actions/simplicity/pset/create.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,9 @@ pub enum PsetCreateError {

#[error("confidential addresses are not yet supported")]
ConfidentialAddressNotSupported,

#[error("invalid OP_RETURN hex data: {0}")]
OpReturnHexParse(String),
}

#[derive(Deserialize)]
Expand Down Expand Up @@ -127,6 +130,16 @@ pub fn pset_create(inputs_json: &str, outputs_json: &str) -> Result<UpdatedPset,

let script_pubkey = match output_spec.address.as_str() {
"fee" => elements::Script::new(),
x if x.starts_with("data:") => {
// OP_RETURN output: "data:HEXDATA"
let hex_data = &x[5..];
let data = hex::decode(hex_data)
.map_err(|e| PsetCreateError::OpReturnHexParse(e.to_string()))?;
elements::script::Builder::new()
.push_opcode(elements::opcodes::all::OP_RETURN)
.push_slice(&data)
.into_script()
}
x => {
let addr = x.parse::<Address>().map_err(PsetCreateError::AddressParse)?;
if addr.is_blinded() {
Expand Down