miden_client/transaction/request/
mod.rs

1//! Contains structures and functions related to transaction creation.
2
3use alloc::boxed::Box;
4use alloc::collections::{BTreeMap, BTreeSet};
5use alloc::string::{String, ToString};
6use alloc::vec::Vec;
7use core::num::NonZeroU16;
8
9use miden_protocol::Word;
10use miden_protocol::account::{AccountCodeInterface, AccountId};
11use miden_protocol::asset::{Asset, NonFungibleAsset};
12use miden_protocol::crypto::merkle::MerkleError;
13use miden_protocol::crypto::merkle::store::MerkleStore;
14use miden_protocol::errors::{
15    AccountError,
16    AssetError,
17    AssetVaultError,
18    NoteError,
19    StorageMapError,
20    TransactionInputError,
21    TransactionScriptError,
22};
23use miden_protocol::note::{
24    Note,
25    NoteDetails,
26    NoteDetailsCommitment,
27    NoteId,
28    NoteRecipient,
29    NoteScript,
30    NoteTag,
31    PartialNote,
32};
33use miden_protocol::transaction::{InputNote, InputNotes, TransactionArgs, TransactionScript};
34use miden_protocol::vm::AdviceMap;
35use miden_standards::errors::CodeBuilderError;
36use miden_standards::tx_script::{SendNotesTransactionScript, SendNotesTransactionScriptError};
37use miden_tx::utils::serde::{
38    ByteReader,
39    ByteWriter,
40    Deserializable,
41    DeserializationError,
42    Serializable,
43};
44use thiserror::Error;
45
46mod builder;
47pub use builder::{
48    PaymentNoteDescription,
49    PswapTransactionData,
50    SwapTransactionData,
51    TransactionRequestBuilder,
52};
53
54mod foreign;
55pub use foreign::ForeignAccount;
56pub(crate) use foreign::account_proof_into_inputs;
57
58use crate::store::InputNoteRecord;
59
60// TRANSACTION REQUEST
61// ================================================================================================
62
63pub type NoteArgs = Word;
64
65/// Specifies a transaction script to be executed in a transaction.
66///
67/// A transaction script is a program which is executed after scripts of all input notes have been
68/// executed.
69#[derive(Clone, Debug, PartialEq, Eq)]
70pub enum TransactionScriptTemplate {
71    /// Specifies the exact transaction script to be executed in a transaction.
72    CustomScript(TransactionScript),
73    /// Specifies that the transaction script must create the specified output notes.
74    ///
75    /// It is up to the client to determine how the output notes will be created and this will
76    /// depend on the capabilities of the account the transaction request will be applied to.
77    /// For example, for Basic Wallets, this may involve invoking `create_note` procedure.
78    SendNotes(Vec<PartialNote>),
79}
80
81/// Specifies a transaction request that can be executed by an account.
82///
83/// A request contains information about input notes to be consumed by the transaction (if any),
84/// description of the transaction script to be executed (if any), and a set of notes expected
85/// to be generated by the transaction or by consuming notes generated by the transaction.
86#[derive(Clone, Debug, PartialEq, Eq)]
87pub struct TransactionRequest {
88    /// Notes to be consumed by the transaction.
89    /// includes both authenticated and unauthenticated notes.
90    /// Notes which ID is present in the store are considered authenticated,
91    /// the ones which ID is does not exist are considered unauthenticated.
92    input_notes: Vec<Note>,
93    /// Optional arguments of the input notes to be consumed by the transaction. This
94    /// includes both authenticated and unauthenticated notes.
95    input_notes_args: Vec<(NoteId, Option<NoteArgs>)>,
96    /// Template for the creation of the transaction script.
97    script_template: Option<TransactionScriptTemplate>,
98    /// A map of recipients of the output notes expected to be generated by the transaction.
99    expected_output_recipients: BTreeMap<Word, NoteRecipient>,
100    /// A map of details and tags of notes we expect to be created as part of future transactions
101    /// with their respective tags.
102    ///
103    /// For example, after a swap note is consumed, a payback note is expected to be created.
104    expected_future_notes: BTreeMap<NoteDetailsCommitment, (NoteDetails, NoteTag)>,
105    /// Initial state of the `AdviceMap` that provides data during runtime.
106    advice_map: AdviceMap,
107    /// Initial state of the `MerkleStore` that provides data during runtime.
108    merkle_store: MerkleStore,
109    /// Foreign account data requirements keyed by account ID. At execution time, account data
110    /// will be retrieved from the network, and injected as advice inputs. Additionally, the
111    /// account's code will be added to the executor and prover.
112    foreign_accounts: BTreeMap<AccountId, ForeignAccount>,
113    /// The number of blocks in relation to the transaction's reference block after which the
114    /// transaction will expire. If `None`, the transaction will not expire.
115    expiration_delta: Option<u16>,
116    /// Indicates whether to **silently** ignore invalid input notes when executing the
117    /// transaction. This will allow the transaction to be executed even if some input notes
118    /// are invalid.
119    ignore_invalid_input_notes: bool,
120    /// Optional [`Word`] that will be pushed to the operand stack before the transaction script
121    /// execution.
122    script_arg: Option<Word>,
123    /// Optional [`Word`] that will be pushed to the stack for the authentication procedure
124    /// during transaction execution.
125    auth_arg: Option<Word>,
126    /// Note scripts that the node's NTX builder will need in its script registry.
127    ///
128    /// See [`TransactionRequestBuilder::expected_ntx_scripts`] for details.
129    expected_ntx_scripts: Vec<NoteScript>,
130}
131
132impl TransactionRequest {
133    // PUBLIC ACCESSORS
134    // --------------------------------------------------------------------------------------------
135
136    /// Returns a reference to the transaction request's input note list.
137    pub fn input_notes(&self) -> &[Note] {
138        &self.input_notes
139    }
140
141    /// Returns a list of all input note IDs.
142    pub fn input_note_ids(&self) -> impl Iterator<Item = NoteId> {
143        self.input_notes.iter().map(Note::id)
144    }
145
146    /// Returns the assets held by the transaction's input notes.
147    pub fn incoming_assets(&self) -> (BTreeMap<AccountId, u64>, Vec<NonFungibleAsset>) {
148        collect_assets(self.input_notes.iter().flat_map(|note| note.assets().iter()))
149    }
150
151    /// Returns a map of note IDs to their respective [`NoteArgs`]. The result will include
152    /// exclusively note IDs for notes for which [`NoteArgs`] have been defined.
153    pub fn get_note_args(&self) -> BTreeMap<NoteId, NoteArgs> {
154        self.input_notes_args
155            .iter()
156            .filter_map(|(note, args)| args.map(|a| (*note, a)))
157            .collect()
158    }
159
160    /// Returns the expected output own notes of the transaction.
161    ///
162    /// In this context "own notes" refers to notes that are expected to be created directly by the
163    /// transaction script, rather than notes that are created as a result of consuming other
164    /// notes.
165    pub fn expected_output_own_notes(&self) -> Vec<Note> {
166        match &self.script_template {
167            Some(TransactionScriptTemplate::SendNotes(notes)) => notes
168                .iter()
169                .map(|partial| {
170                    Note::with_attachments(
171                        partial.assets().clone(),
172                        *partial.partial_metadata(),
173                        self.expected_output_recipients
174                            .get(&partial.recipient_digest())
175                            .expect("Recipient should be included if it's an own note")
176                            .clone(),
177                        partial.attachments().clone(),
178                    )
179                })
180                .collect(),
181            _ => vec![],
182        }
183    }
184
185    /// Returns an iterator over the expected output notes.
186    pub fn expected_output_recipients(&self) -> impl Iterator<Item = &NoteRecipient> {
187        self.expected_output_recipients.values()
188    }
189
190    /// Returns an iterator over expected future notes.
191    pub fn expected_future_notes(&self) -> impl Iterator<Item = &(NoteDetails, NoteTag)> {
192        self.expected_future_notes.values()
193    }
194
195    /// Returns the [`TransactionScriptTemplate`].
196    pub fn script_template(&self) -> &Option<TransactionScriptTemplate> {
197        &self.script_template
198    }
199
200    /// Returns the [`AdviceMap`] for the transaction request.
201    pub fn advice_map(&self) -> &AdviceMap {
202        &self.advice_map
203    }
204
205    /// Returns a mutable reference to the [`AdviceMap`] for the transaction request.
206    pub fn advice_map_mut(&mut self) -> &mut AdviceMap {
207        &mut self.advice_map
208    }
209
210    /// Returns the [`MerkleStore`] for the transaction request.
211    pub fn merkle_store(&self) -> &MerkleStore {
212        &self.merkle_store
213    }
214
215    /// Returns the required foreign accounts keyed by account ID.
216    pub fn foreign_accounts(&self) -> &BTreeMap<AccountId, ForeignAccount> {
217        &self.foreign_accounts
218    }
219
220    /// Returns whether to ignore invalid input notes or not.
221    pub fn ignore_invalid_input_notes(&self) -> bool {
222        self.ignore_invalid_input_notes
223    }
224
225    /// Returns the script argument for the transaction request.
226    pub fn script_arg(&self) -> &Option<Word> {
227        &self.script_arg
228    }
229
230    /// Returns the auth argument for the transaction request.
231    pub fn auth_arg(&self) -> &Option<Word> {
232        &self.auth_arg
233    }
234
235    /// Returns the expected NTX scripts that the node's NTX builder will need in its registry.
236    pub fn expected_ntx_scripts(&self) -> &[NoteScript] {
237        &self.expected_ntx_scripts
238    }
239
240    /// Builds the [`InputNotes`] needed for the transaction execution.
241    ///
242    /// Authenticated input notes are provided by the caller (typically fetched from the store).
243    /// Any requested notes not present in that authenticated set are treated as unauthenticated.
244    /// The transaction input notes will include both authenticated and unauthenticated notes in
245    /// the order they were provided in the transaction request.
246    pub(crate) fn build_input_notes(
247        &self,
248        authenticated_note_records: Vec<InputNoteRecord>,
249    ) -> Result<InputNotes<InputNote>, TransactionRequestError> {
250        let mut input_notes: BTreeMap<NoteId, InputNote> = BTreeMap::new();
251
252        // Add provided authenticated input notes to the input notes map.
253        for authenticated_note_record in authenticated_note_records {
254            // Authenticated note records always carry metadata (their inclusion proof
255            // injected it), so `id()` is `Some`.
256            let authenticated_note_id = authenticated_note_record
257                .id()
258                .expect("authenticated note record carries metadata so id() is Some");
259
260            if !authenticated_note_record.is_authenticated() {
261                return Err(TransactionRequestError::InputNoteNotAuthenticated(
262                    authenticated_note_id,
263                ));
264            }
265
266            if authenticated_note_record.is_consumed() {
267                return Err(TransactionRequestError::InputNoteAlreadyConsumed(
268                    authenticated_note_id,
269                ));
270            }
271
272            input_notes.insert(
273                authenticated_note_id,
274                authenticated_note_record
275                    .try_into()
276                    .expect("Authenticated note record should be convertible to InputNote"),
277            );
278        }
279
280        // Add unauthenticated input notes to the input notes map.
281        let authenticated_note_ids: BTreeSet<NoteId> = input_notes.keys().copied().collect();
282        for note in self.input_notes().iter().filter(|n| !authenticated_note_ids.contains(&n.id()))
283        {
284            input_notes.insert(note.id(), InputNote::Unauthenticated { note: note.clone() });
285        }
286
287        Ok(InputNotes::new(
288            self.input_note_ids()
289                .map(|note_id| {
290                    input_notes
291                        .remove(&note_id)
292                        .expect("The input note map was checked to contain all input notes")
293                })
294                .collect(),
295        )?)
296    }
297
298    /// Converts the [`TransactionRequest`] into [`TransactionArgs`] in order to be executed by a
299    /// Miden host.
300    pub(crate) fn into_transaction_args(
301        self,
302        tx_script: Option<TransactionScript>,
303    ) -> TransactionArgs {
304        let note_args = self.get_note_args();
305        let TransactionRequest {
306            expected_output_recipients,
307            advice_map,
308            merkle_store,
309            ..
310        } = self;
311
312        let mut tx_args = TransactionArgs::new(advice_map).with_note_args(note_args);
313
314        // A script argument without a script has nothing to bind to, so it is only applied when a
315        // transaction script is present. With no argument the default empty word is used, which is
316        // equivalent to setting no argument at all.
317        if let Some(tx_script) = tx_script {
318            tx_args =
319                tx_args.with_tx_script_and_args(tx_script, self.script_arg.unwrap_or_default());
320        }
321
322        if let Some(auth_argument) = self.auth_arg {
323            tx_args = tx_args.with_auth_args(auth_argument);
324        }
325
326        tx_args
327            .extend_output_note_recipients(expected_output_recipients.into_values().map(Box::new));
328        tx_args.extend_merkle_store(merkle_store.inner_nodes());
329
330        tx_args
331    }
332
333    /// Builds the transaction script based on the account capabilities and the transaction request.
334    ///
335    /// Returns `None` when the request carries no script template, producing a transaction with no
336    /// transaction script (a zero script root).
337    ///
338    /// Scripts supplied by the caller via [`TransactionScriptTemplate::CustomScript`] are expected
339    /// to have already been compiled against the client's source manager (e.g. via
340    /// [`Client::code_builder`](crate::Client::code_builder)).
341    pub(crate) fn build_transaction_script(
342        &self,
343        code_interface: &AccountCodeInterface,
344    ) -> Result<Option<TransactionScript>, TransactionRequestError> {
345        match &self.script_template {
346            Some(TransactionScriptTemplate::CustomScript(script)) => Ok(Some(script.clone())),
347            Some(TransactionScriptTemplate::SendNotes(notes)) => {
348                let script = match self.expiration_delta.and_then(NonZeroU16::new) {
349                    Some(delta) => SendNotesTransactionScript::with_expiration_delta(
350                        code_interface,
351                        notes,
352                        delta,
353                    )?,
354                    None => SendNotesTransactionScript::new(code_interface, notes)?,
355                };
356                Ok(Some(script.into()))
357            },
358            None => Ok(None),
359        }
360    }
361}
362
363// SERIALIZATION
364// ================================================================================================
365
366impl Serializable for TransactionRequest {
367    fn write_into<W: ByteWriter>(&self, target: &mut W) {
368        self.input_notes.write_into(target);
369        self.input_notes_args.write_into(target);
370        match &self.script_template {
371            None => target.write_u8(0),
372            Some(TransactionScriptTemplate::CustomScript(script)) => {
373                target.write_u8(1);
374                script.write_into(target);
375            },
376            Some(TransactionScriptTemplate::SendNotes(notes)) => {
377                target.write_u8(2);
378                notes.write_into(target);
379            },
380        }
381        self.expected_output_recipients.write_into(target);
382        self.expected_future_notes.write_into(target);
383        self.advice_map.write_into(target);
384        self.merkle_store.write_into(target);
385        let foreign_accounts: Vec<_> = self.foreign_accounts.values().cloned().collect();
386        foreign_accounts.write_into(target);
387        self.expiration_delta.write_into(target);
388        target.write_u8(u8::from(self.ignore_invalid_input_notes));
389        self.script_arg.write_into(target);
390        self.auth_arg.write_into(target);
391        self.expected_ntx_scripts.write_into(target);
392    }
393}
394
395impl Deserializable for TransactionRequest {
396    fn read_from<R: ByteReader>(source: &mut R) -> Result<Self, DeserializationError> {
397        let input_notes = Vec::<Note>::read_from(source)?;
398        let input_notes_args = Vec::<(NoteId, Option<NoteArgs>)>::read_from(source)?;
399
400        let script_template = match source.read_u8()? {
401            0 => None,
402            1 => {
403                let transaction_script = TransactionScript::read_from(source)?;
404                Some(TransactionScriptTemplate::CustomScript(transaction_script))
405            },
406            2 => {
407                let notes = Vec::<PartialNote>::read_from(source)?;
408                Some(TransactionScriptTemplate::SendNotes(notes))
409            },
410            _ => {
411                return Err(DeserializationError::InvalidValue(
412                    "Invalid script template type".to_string(),
413                ));
414            },
415        };
416
417        let expected_output_recipients = BTreeMap::<Word, NoteRecipient>::read_from(source)?;
418        let expected_future_notes =
419            BTreeMap::<NoteDetailsCommitment, (NoteDetails, NoteTag)>::read_from(source)?;
420
421        let advice_map = AdviceMap::read_from(source)?;
422        let merkle_store = MerkleStore::read_from(source)?;
423        let mut foreign_accounts = BTreeMap::new();
424        for foreign_account in Vec::<ForeignAccount>::read_from(source)? {
425            foreign_accounts.entry(foreign_account.account_id()).or_insert(foreign_account);
426        }
427        let expiration_delta = Option::<u16>::read_from(source)?;
428        let ignore_invalid_input_notes = source.read_u8()? == 1;
429        let script_arg = Option::<Word>::read_from(source)?;
430        let auth_arg = Option::<Word>::read_from(source)?;
431        let expected_ntx_scripts = Vec::<NoteScript>::read_from(source)?;
432
433        Ok(TransactionRequest {
434            input_notes,
435            input_notes_args,
436            script_template,
437            expected_output_recipients,
438            expected_future_notes,
439            advice_map,
440            merkle_store,
441            foreign_accounts,
442            expiration_delta,
443            ignore_invalid_input_notes,
444            script_arg,
445            auth_arg,
446            expected_ntx_scripts,
447        })
448    }
449}
450
451// HELPERS
452// ================================================================================================
453
454/// Accumulates fungible totals and collectable non-fungible assets from an iterator of assets.
455pub(crate) fn collect_assets<'a>(
456    assets: impl Iterator<Item = &'a Asset>,
457) -> (BTreeMap<AccountId, u64>, Vec<NonFungibleAsset>) {
458    let mut fungible_balance_map = BTreeMap::new();
459    let mut non_fungible_set = Vec::new();
460
461    assets.for_each(|asset| match asset {
462        Asset::Fungible(fungible) => {
463            let amount = fungible.amount().as_u64();
464            fungible_balance_map
465                .entry(fungible.faucet_id())
466                .and_modify(|balance| *balance += amount)
467                .or_insert(amount);
468        },
469        Asset::NonFungible(non_fungible) => {
470            if !non_fungible_set.contains(non_fungible) {
471                non_fungible_set.push(*non_fungible);
472            }
473        },
474    });
475
476    (fungible_balance_map, non_fungible_set)
477}
478
479impl Default for TransactionRequestBuilder {
480    fn default() -> Self {
481        Self::new()
482    }
483}
484
485// TRANSACTION REQUEST ERROR
486// ================================================================================================
487
488// Errors related to a [TransactionRequest]
489#[derive(Debug, Error)]
490pub enum TransactionRequestError {
491    #[error("failed to build the send-notes transaction script")]
492    SendNotesTransactionScriptError(#[from] SendNotesTransactionScriptError),
493    #[error("account error")]
494    AccountError(#[from] AccountError),
495    #[error("asset error")]
496    AssetError(#[from] AssetError),
497    #[error("duplicate input note: note {0} was added more than once to the transaction")]
498    DuplicateInputNote(NoteId),
499    #[error("transaction expiration delta must be greater than zero")]
500    ZeroExpirationDelta,
501    #[error(
502        "the account proof does not contain the required foreign account data; re-fetch the proof and retry"
503    )]
504    ForeignAccountDataMissing,
505    #[error(
506        "foreign account {0} has incompatible visibility; use `ForeignAccount::public()` for public accounts and `ForeignAccount::private()` for private accounts"
507    )]
508    InvalidForeignAccountId(AccountId),
509    #[error(
510        "note {0} cannot be used as an authenticated input: it does not have a valid inclusion proof"
511    )]
512    InputNoteNotAuthenticated(NoteId),
513    #[error("note {0} has already been consumed")]
514    InputNoteAlreadyConsumed(NoteId),
515    #[error(
516        "output note declares sender {actual} but the transaction is executed by account {expected}"
517    )]
518    OutputNoteSenderMismatch { expected: AccountId, actual: AccountId },
519    #[error("invalid transaction script")]
520    InvalidTransactionScript(#[from] TransactionScriptError),
521    #[error("merkle proof error")]
522    MerkleError(#[from] MerkleError),
523    #[error("empty transaction: the request has no input notes and no account state changes")]
524    NoInputNotesNorAccountChange,
525    #[error("note not found: {0}")]
526    NoteNotFound(String),
527    #[error("failed to create note")]
528    NoteCreationError(#[from] NoteError),
529    #[error("note failed validation")]
530    NoteValidationError(#[source] NoteError),
531    #[error("note execution failed")]
532    NoteExecutionError(#[source] NoteError),
533    #[error("failed to build note args")]
534    NoteArgError(#[source] NoteError),
535    #[error("pay-to-ID note must contain at least one asset to transfer")]
536    P2IDNoteWithoutAsset,
537    #[error(
538        "non-fungible asset issued by faucet {0} is not available in the account vault or incoming notes"
539    )]
540    MissingNonFungibleAsset(AccountId),
541    #[error("PSWAP note can only be cancelled by its creator: expected {expected}, got {actual}")]
542    PswapCancelCreatorMismatch { expected: AccountId, actual: AccountId },
543    #[error("error building script")]
544    CodeBuilderError(#[from] CodeBuilderError),
545    #[error("transaction script template error: {0}")]
546    ScriptTemplateError(String),
547    #[error("storage slot {0} not found in account ID {1}")]
548    StorageSlotNotFound(u8, AccountId),
549    #[error("error while building the input notes")]
550    TransactionInputError(#[from] TransactionInputError),
551    #[error("account storage map error")]
552    StorageMapError(#[from] StorageMapError),
553    #[error("asset vault error")]
554    AssetVaultError(#[from] AssetVaultError),
555    #[error(
556        "unsupported authentication scheme ID {0}; supported schemes are: RpoFalcon512 (0) and EcdsaK256Keccak (1)"
557    )]
558    UnsupportedAuthSchemeId(u8),
559}
560
561// TESTS
562// ================================================================================================
563
564#[cfg(test)]
565mod tests {
566    use std::vec::Vec;
567
568    use miden_protocol::account::auth::{AuthScheme, PublicKeyCommitment};
569    use miden_protocol::account::{
570        AccountBuilder,
571        AccountComponent,
572        AccountId,
573        AccountType,
574        StorageMapKey,
575        StorageSlotName,
576    };
577    use miden_protocol::asset::FungibleAsset;
578    use miden_protocol::crypto::rand::{FeltRng, RandomCoin};
579    use miden_protocol::note::{NoteTag, NoteType};
580    use miden_protocol::testing::account_id::{
581        ACCOUNT_ID_PRIVATE_FUNGIBLE_FAUCET,
582        ACCOUNT_ID_REGULAR_PUBLIC_ACCOUNT_IMMUTABLE_CODE,
583        ACCOUNT_ID_SENDER,
584    };
585    use miden_protocol::{EMPTY_WORD, Felt, Word};
586    use miden_standards::account::auth::{Approver, AuthSingleSig};
587    use miden_standards::note::P2idNote;
588    use miden_standards::testing::account_component::MockAccountComponent;
589    use miden_tx::utils::serde::{Deserializable, Serializable};
590
591    use super::{TransactionRequest, TransactionRequestBuilder};
592    use crate::rpc::domain::account::AccountStorageRequirements;
593    use crate::transaction::ForeignAccount;
594
595    #[test]
596    fn transaction_request_serialization() {
597        assert_transaction_request_serialization_with(|| {
598            AuthSingleSig::new(Approver::new(
599                PublicKeyCommitment::from(EMPTY_WORD),
600                AuthScheme::Falcon512Poseidon2,
601            ))
602            .into()
603        });
604    }
605
606    #[test]
607    fn transaction_request_serialization_ecdsa() {
608        assert_transaction_request_serialization_with(|| {
609            AuthSingleSig::new(Approver::new(
610                PublicKeyCommitment::from(EMPTY_WORD),
611                AuthScheme::EcdsaK256Keccak,
612            ))
613            .into()
614        });
615    }
616
617    fn assert_transaction_request_serialization_with<F>(auth_component: F)
618    where
619        F: FnOnce() -> AccountComponent,
620    {
621        let sender_id = AccountId::try_from(ACCOUNT_ID_SENDER).unwrap();
622        let target_id =
623            AccountId::try_from(ACCOUNT_ID_REGULAR_PUBLIC_ACCOUNT_IMMUTABLE_CODE).unwrap();
624        let faucet_id = AccountId::try_from(ACCOUNT_ID_PRIVATE_FUNGIBLE_FAUCET).unwrap();
625        let mut rng = RandomCoin::new(Word::default());
626
627        let mut notes = vec![];
628        for i in 0..6 {
629            let note = P2idNote::builder()
630                .sender(sender_id)
631                .target(target_id)
632                .assets(vec![FungibleAsset::new(faucet_id, 100 + i).unwrap()])
633                .note_type(NoteType::Private)
634                .generate_serial_number(&mut rng)
635                .build()
636                .expect("note creation failed");
637            notes.push(note.into());
638        }
639
640        let mut advice_vec: Vec<(Word, Vec<Felt>)> = vec![];
641        for i in 0u32..10 {
642            advice_vec.push((rng.draw_word(), vec![Felt::from(i)]));
643        }
644
645        let account = AccountBuilder::new(Default::default())
646            .with_component(MockAccountComponent::with_empty_slots())
647            .with_auth_component(auth_component())
648            .account_type(AccountType::Private)
649            .build_existing()
650            .unwrap();
651
652        // This transaction request wouldn't be valid in a real scenario, it's intended for testing
653        let tx_request = TransactionRequestBuilder::new()
654            .input_notes(vec![(notes.pop().unwrap(), None)])
655            .expected_output_recipients(vec![notes.pop().unwrap().recipient().clone()])
656            .expected_future_notes(vec![(
657                notes.pop().unwrap().into(),
658                NoteTag::with_account_target(sender_id),
659            )])
660            .extend_advice_map(advice_vec)
661            .foreign_accounts([
662                ForeignAccount::public(
663                    target_id,
664                    AccountStorageRequirements::new([(
665                        StorageSlotName::new("demo::storage_slot").unwrap(),
666                        &[StorageMapKey::new(Word::default())],
667                    )]),
668                )
669                .unwrap(),
670                ForeignAccount::private(&account).unwrap(),
671            ])
672            .own_output_notes(vec![notes.pop().unwrap(), notes.pop().unwrap()])
673            .script_arg(rng.draw_word())
674            .auth_arg(rng.draw_word())
675            .expected_ntx_scripts(vec![notes.first().unwrap().recipient().script().clone()])
676            .build()
677            .unwrap();
678
679        let mut buffer = Vec::new();
680        tx_request.write_into(&mut buffer);
681
682        let deserialized_tx_request = TransactionRequest::read_from_bytes(&buffer).unwrap();
683        assert_eq!(tx_request, deserialized_tx_request);
684    }
685}
miden_client/transaction/request/mod.rs

miden_client/transaction/request/
mod.rs
