dash_sdk/platform/fetch_many.rs
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542
//! Fetch multiple objects from Platform.
//!
//! This module provides a trait to fetch multiple objects from Platform.
//!
//! ## Traits
//! - `[FetchMany]`: An async trait that fetches multiple items of a specific type from Platform.
use super::LimitQuery;
use crate::{
error::Error,
mock::MockResponse,
platform::{document_query::DocumentQuery, query::Query},
sync::retry,
Sdk,
};
use dapi_grpc::platform::v0::{
GetContestedResourceIdentityVotesRequest, GetContestedResourceVoteStateRequest,
GetContestedResourceVotersForIdentityRequest, GetContestedResourcesRequest,
GetDataContractsRequest, GetEpochsInfoRequest, GetEvonodesProposedEpochBlocksByIdsRequest,
GetEvonodesProposedEpochBlocksByRangeRequest, GetIdentitiesBalancesRequest,
GetIdentityKeysRequest, GetPathElementsRequest, GetProtocolVersionUpgradeStateRequest,
GetProtocolVersionUpgradeVoteStatusRequest, GetVotePollsByEndDateRequest, Proof,
ResponseMetadata,
};
use dashcore_rpc::dashcore::ProTxHash;
use dpp::data_contract::DataContract;
use dpp::identity::KeyID;
use dpp::prelude::{Identifier, IdentityPublicKey};
use dpp::util::deserializer::ProtocolVersion;
use dpp::version::ProtocolVersionVoteCount;
use dpp::{block::epoch::EpochIndex, prelude::TimestampMillis, voting::vote_polls::VotePoll};
use dpp::{
block::extended_epoch_info::ExtendedEpochInfo, voting::votes::resource_vote::ResourceVote,
};
use dpp::{document::Document, voting::contender_structs::ContenderWithSerializedDocument};
use drive::grovedb::query_result_type::Key;
use drive::grovedb::Element;
use drive_proof_verifier::types::{
Contenders, ContestedResource, ContestedResources, DataContracts, Elements, ExtendedEpochInfos,
IdentityBalances, IdentityPublicKeys, MasternodeProtocolVote, MasternodeProtocolVotes,
ProposerBlockCountById, ProposerBlockCountByRange, ProposerBlockCounts,
ProtocolVersionUpgrades, ResourceVotesByIdentity, VotePollsGroupedByTimestamp, Voter, Voters,
};
use drive_proof_verifier::{types::Documents, FromProof};
use rs_dapi_client::{
transport::TransportRequest, DapiRequest, ExecutionError, ExecutionResponse, InnerInto,
IntoInner, RequestSettings,
};
/// Fetch multiple objects from Platform.
///
/// To fetch multiple objects from Platform, you need to define some query (criteria that fetched objects must match)
/// and use [FetchMany::fetch_many()] for your object type.
///
/// You can also use convenience methods:
/// * [FetchMany::fetch_many_by_identifiers()] - to fetch multiple objects by their identifiers,
/// * [FetchMany::fetch_many_with_limit()] - to fetch not more than `limit` objects.
///
/// ## Generic Parameters
///
/// - `K`: The type of the key used to index the object
/// - `O`: The type of returned container (eg. map) that holds the fetched objects
///
/// ## Example
///
/// An example use case is to fetch multiple [Data Contracts](dpp::prelude::DataContract) by their [Identifiers](Identifier).
/// As [`&[Identifier]`] implements [Query] for this type of requests, you need to:
///
/// * define [Identifier]s of data contracts to fetch,
/// * create a query by grouping identifiers in a collection, like a [Vec] or a slice,
/// * call [DataContract::fetch_many()](FetchMany::fetch_many()) with the query and an instance of [Sdk].
///
/// ```rust
/// use dash_sdk::{Sdk, platform::{Query, Identifier, FetchMany, DataContract}};
///
/// # const SOME_IDENTIFIER_1 : [u8; 32] = [1; 32];
/// # const SOME_IDENTIFIER_2 : [u8; 32] = [2; 32];
/// let sdk = Sdk::new_mock();
///
/// let id1 = Identifier::new(SOME_IDENTIFIER_1);
/// let id2 = Identifier::new(SOME_IDENTIFIER_2);
///
/// let query = vec![id1, id2];
///
/// let data_contract = DataContract::fetch_many(&sdk, query);
/// ```
#[async_trait::async_trait]
pub trait FetchMany<K: Ord, O: FromIterator<(K, Option<Self>)>>
where
Self: Sized,
O: MockResponse
+ FromProof<
Self::Request,
Request = Self::Request,
Response = <<Self as FetchMany<K, O>>::Request as TransportRequest>::Response,
> + Send
+ Default,
{
/// Type of request used to fetch multiple objects from Platform.
///
/// Most likely, one of the types defined in [`dapi_grpc::platform::v0`].
///
/// This type must implement [`TransportRequest`] and [`MockRequest`](crate::mock::MockRequest).
type Request: TransportRequest
+ Into<<O as FromProof<<Self as FetchMany<K, O>>::Request>>::Request>;
/// Fetch (or search) multiple objects on the Dash Platform
///
/// [`FetchMany::fetch_many()`] is an asynchronous method that fetches multiple objects from the Dash Platform.
///
/// Note that this method might introduce some predefined limit on the number of objects returned.
/// If you need to specify the limit yourself, use [FetchMany::fetch_many_with_limit()] or [LimitQuery] instead.
///
/// ## Per-object type documentation
///
/// See documentation of [FetchMany trait implementations](FetchMany#foreign-impls) for each object type
/// for more details, including list of supported [queries](Query).
///
/// ## Generic Parameters
///
/// - `Q`: The type of [Query] used to generate a request
///
/// ## Parameters
///
/// - `sdk`: An instance of [Sdk].
/// - `query`: A query parameter implementing [`Query`](crate::platform::query::Query) to specify the data to be retrieved.
///
/// ## Returns
///
/// Returns a `Result` containing either:
///
/// * list of objects matching the [Query] indexed by a key type `K`, where an item can be None of
/// the object was not found for provided key
/// * [`Error`](crate::error::Error).
///
/// Note that behavior when no items are found can be either empty collection or collection containing None values.
///
/// ## Usage
///
/// See `tests/fetch/document.rs` for a full example.
///
/// ## Error Handling
///
/// Any errors encountered during the execution are returned as [`Error`](crate::error::Error) instances.
async fn fetch_many<Q: Query<<Self as FetchMany<K, O>>::Request>>(
sdk: &Sdk,
query: Q,
) -> Result<O, Error> {
Self::fetch_many_with_metadata_and_proof(sdk, query, None)
.await
.map(|(objects, _, _)| objects)
}
/// Fetch multiple objects from Platform with metadata.
///
/// Fetch objects from Platform that satisfy the provided [Query].
/// This method allows you to retrieve the metadata associated with the response.
///
/// ## Parameters
///
/// - `sdk`: An instance of [Sdk].
/// - `query`: A query parameter implementing [`crate::platform::query::Query`] to specify the data to be fetched.
/// - `settings`: An optional `RequestSettings` to give greater flexibility on the request.
///
/// ## Returns
///
/// Returns a `Result` containing either:
///
/// * A tuple `(O, ResponseMetadata)` where `O` is the collection of fetched objects, and `ResponseMetadata` contains metadata about the response.
/// * [`Error`](crate::error::Error) when an error occurs.
///
/// ## Error Handling
///
/// Any errors encountered during the execution are returned as [Error] instances.
async fn fetch_many_with_metadata<Q: Query<<Self as FetchMany<K, O>>::Request>>(
sdk: &Sdk,
query: Q,
settings: Option<RequestSettings>,
) -> Result<(O, ResponseMetadata), Error> {
Self::fetch_many_with_metadata_and_proof(sdk, query, settings)
.await
.map(|(objects, metadata, _)| (objects, metadata))
}
/// Fetch multiple objects from Platform with metadata and underlying proof.
///
/// Fetch objects from Platform that satisfy the provided [Query].
/// This method allows you to retrieve the metadata and the underlying proof associated with the response.
///
/// ## Parameters
///
/// - `sdk`: An instance of [Sdk].
/// - `query`: A query parameter implementing [`crate::platform::query::Query`] to specify the data to be fetched.
/// - `settings`: An optional `RequestSettings` to give greater flexibility on the request.
///
/// ## Returns
///
/// Returns a `Result` containing either:
///
/// * A tuple `(O, ResponseMetadata, Proof)` where `O` is the collection of fetched objects, `ResponseMetadata` contains metadata about the response, and `Proof` is the underlying proof.
/// * [`Error`](crate::error::Error) when an error occurs.
///
/// ## Error Handling
///
/// Any errors encountered during the execution are returned as [Error] instances.
async fn fetch_many_with_metadata_and_proof<Q: Query<<Self as FetchMany<K, O>>::Request>>(
sdk: &Sdk,
query: Q,
settings: Option<RequestSettings>,
) -> Result<(O, ResponseMetadata, Proof), Error> {
let request = &query.query(sdk.prove())?;
let fut = |settings: RequestSettings| async move {
let ExecutionResponse {
address,
retries,
inner: response,
} = request
.clone()
.execute(sdk, settings)
.await
.map_err(|e| e.inner_into())?;
let object_type = std::any::type_name::<Self>().to_string();
tracing::trace!(
request = ?request,
response = ?response,
?address,
retries,
object_type,
"fetched objects from platform"
);
sdk.parse_proof_with_metadata_and_proof::<<Self as FetchMany<K, O>>::Request, O>(
request.clone(),
response,
)
.await
.map_err(|e| ExecutionError {
inner: e,
address: Some(address.clone()),
retries,
})
.map(|(o, metadata, proof)| ExecutionResponse {
inner: (o.unwrap_or_default(), metadata, proof),
retries,
address: address.clone(),
})
};
let settings = sdk
.dapi_client_settings
.override_by(settings.unwrap_or_default());
retry(sdk.address_list(), settings, fut).await.into_inner()
}
/// Fetch multiple objects from Platform by their identifiers.
///
/// Convenience method to fetch multiple objects by their identifiers.
/// See [FetchMany] and [FetchMany::fetch_many()] for more detailed documentation.
///
/// ## Parameters
///
/// - `sdk`: An instance of [Sdk].
/// - `identifiers`: A collection of [Identifiers](crate::platform::Identifier) to fetch.
///
/// ## Requirements
///
/// `Vec<Identifier>` must implement [Query] for [Self::Request].
async fn fetch_by_identifiers<I: IntoIterator<Item = Identifier> + Send>(
sdk: &Sdk,
identifiers: I,
) -> Result<O, Error>
where
Vec<Identifier>: Query<<Self as FetchMany<K, O>>::Request>,
{
let ids = identifiers.into_iter().collect::<Vec<Identifier>>();
Self::fetch_many(sdk, ids).await
}
/// Fetch multiple objects from Platform with limit.
///
/// Fetches up to `limit` objects matching the `query`.
/// See [FetchMany] and [FetchMany::fetch_many()] for more detailed documentation.
///
/// ## Parameters
///
/// - `sdk`: An instance of [Sdk].
/// - `query`: A query parameter implementing [`Query`](crate::platform::query::Query) to specify the data to be retrieved.
/// - `limit`: Maximum number of objects to fetch.
async fn fetch_many_with_limit<Q: Query<<Self as FetchMany<K, O>>::Request>>(
sdk: &Sdk,
query: Q,
limit: u32,
) -> Result<O, Error>
where
LimitQuery<Q>: Query<<Self as FetchMany<K, O>>::Request>,
{
let limit_query = LimitQuery {
limit: Some(limit),
query,
start_info: None,
};
Self::fetch_many(sdk, limit_query).await
}
}
/// Fetch documents from Platform.
///
/// Returns [Documents](dpp::document::Document) indexed by their [Identifier](dpp::prelude::Identifier).
///
/// ## Supported query types
///
/// * [DriveQuery](crate::platform::DriveDocumentQuery) - query that specifies document matching criteria
/// * [DocumentQuery](crate::platform::document_query::DocumentQuery)
#[async_trait::async_trait]
impl FetchMany<Identifier, Documents> for Document {
// We need to use the DocumentQuery type here because the DocumentQuery
// type stores full contract, which is missing in the GetDocumentsRequest type.
// TODO: Refactor to use ContextProvider
type Request = DocumentQuery;
async fn fetch_many<Q: Query<<Self as FetchMany<Identifier, Documents>>::Request>>(
sdk: &Sdk,
query: Q,
) -> Result<Documents, Error> {
let document_query: &DocumentQuery = &query.query(sdk.prove())?;
retry(sdk.address_list(), sdk.dapi_client_settings, |settings| async move {
let request = document_query.clone();
let ExecutionResponse {
address,
retries,
inner: response
} = request.execute(sdk, settings).await.map_err(|e| e.inner_into())?;
tracing::trace!(request=?document_query, response=?response, ?address, retries, "fetch multiple documents");
// let object: Option<BTreeMap<K,Document>> = sdk
let documents = sdk
.parse_proof::<DocumentQuery, Documents>(document_query.clone(), response)
.await
.map_err(|e| ExecutionError {
inner: e,
retries,
address: Some(address.clone()),
})?
.unwrap_or_default();
Ok(ExecutionResponse {
inner: documents,
retries,
address,
})
})
.await
.into_inner()
}
}
/// Retrieve public keys for a given identity.
///
/// Returns [IdentityPublicKeys](drive_proof_verifier::types::IdentityPublicKeys) indexed by
/// [KeyID](dpp::identity::KeyID).
///
/// ## Supported query types
///
/// * [Identifier] - [Identity](crate::platform::Identity) ID for which to retrieve keys
impl FetchMany<KeyID, IdentityPublicKeys> for IdentityPublicKey {
type Request = GetIdentityKeysRequest;
}
/// Retrieve epochs.
///
/// Returns [ExtendedEpochInfos](drive_proof_verifier::types::ExtendedEpochInfos).
///
/// ## Supported query types
///
/// * [EpochQuery](super::types::epoch::EpochQuery) - query that specifies epoch matching criteria
/// * [EpochIndex](dpp::block::epoch::EpochIndex) - epoch index of first object to find; will return up to
/// [DEFAULT_EPOCH_QUERY_LIMIT](super::query::DEFAULT_EPOCH_QUERY_LIMIT) objects starting from this index
/// * [`LimitQuery<EpochQuery>`](super::LimitQuery), [`LimitQuery<EpochIndex>`](super::LimitQuery) - limit query
/// that allows to specify maximum number of objects to fetch; see also [FetchMany::fetch_many_with_limit()].
impl FetchMany<EpochIndex, ExtendedEpochInfos> for ExtendedEpochInfo {
type Request = GetEpochsInfoRequest;
}
/// Fetch information about number of votes for each protocol version upgrade.
///
/// Returns [ProtocolVersionUpgrades](drive_proof_verifier::types::ProtocolVersionUpgrades)
/// indexed by [ProtocolVersion](dpp::util::deserializer::ProtocolVersion).
///
/// ## Supported query types
///
/// It requires no query, so you can use `()` as the query parameter.
///
/// ## Example
///
/// ```rust
/// use dash_sdk::{Sdk, platform::FetchMany, Error};
/// use drive_proof_verifier::types::{ProtocolVersionUpgrades, ProtocolVersionVoteCount};
///
/// # tokio_test::block_on(async {
/// let sdk = Sdk::new_mock();
/// let result: Result<ProtocolVersionUpgrades, Error> = ProtocolVersionVoteCount::fetch_many(&sdk, ()).await;
/// # });
/// ```
impl FetchMany<ProtocolVersion, ProtocolVersionUpgrades> for ProtocolVersionVoteCount {
type Request = GetProtocolVersionUpgradeStateRequest;
}
/// Fetch information about protocol version upgrade voted by each node.
///
/// Returns list of [MasternodeProtocolVotes](drive_proof_verifier::types::MasternodeProtocolVote)
/// indexed by [ProTxHash](dashcore_rpc::dashcore::ProTxHash). Each item in this list represents
/// node protxhash and its preferred protocol version.
///
/// ## Supported query types
///
/// * [ProTxHash](dashcore_rpc::dashcore::ProTxHash) - proTxHash of first object to find; will return up to
/// [DEFAULT_NODES_VOTING_LIMIT](super::query::DEFAULT_NODES_VOTING_LIMIT) objects
/// * [`Option<ProTxHash>`](dashcore_rpc::dashcore::ProTxHash) - proTxHash that can be and [Option]; if it is `None`,
/// the query will return all objects
/// * [`LimitQuery<ProTxHash>`](super::LimitQuery) - limit query that allows to specify maximum number of objects
/// to fetch; see also [FetchMany::fetch_many_with_limit()].
impl FetchMany<ProTxHash, MasternodeProtocolVotes> for MasternodeProtocolVote {
type Request = GetProtocolVersionUpgradeVoteStatusRequest;
}
/// Fetch information about the proposed block count by proposers for a given epoch.
///
/// Returns list of [ProposerBlockCounts](drive_proof_verifier::types::ProposerBlockCounts)
/// indexed by [ProTxHash](dashcore_rpc::dashcore::ProTxHash). Each item in this list represents
/// node protxhash and the amount of blocks that were proposed.
///
/// ## Supported query types
///
/// * [ProTxHash](dashcore_rpc::dashcore::ProTxHash) - proTxHash of first object to find; will return up to
/// [DEFAULT_NODES_VOTING_LIMIT](super::query::DEFAULT_NODES_VOTING_LIMIT) objects
/// * [`Option<ProTxHash>`](dashcore_rpc::dashcore::ProTxHash) - proTxHash that can be and [Option]; if it is `None`,
/// the query will return all objects
/// * [`LimitQuery<ProTxHash>`](super::LimitQuery) - limit query that allows to specify maximum number of objects
/// to fetch; see also [FetchMany::fetch_many_with_limit()].
impl FetchMany<ProTxHash, ProposerBlockCounts> for ProposerBlockCountByRange {
type Request = GetEvonodesProposedEpochBlocksByRangeRequest;
}
/// Fetch information about the proposed block count by proposers for a given epoch.
///
/// Returns list of [ProposerBlockCounts](drive_proof_verifier::types::ProposerBlockCounts)
/// indexed by [ProTxHash](dashcore_rpc::dashcore::ProTxHash). Each item in this list represents
/// node pro_tx_hash and the amount of blocks that were proposed.
///
/// ## Supported query types
///
/// * [ProTxHash](dashcore_rpc::dashcore::ProTxHash) - proTxHash of an evonode to find; will return one evonode block count
impl FetchMany<ProTxHash, ProposerBlockCounts> for ProposerBlockCountById {
type Request = GetEvonodesProposedEpochBlocksByIdsRequest;
}
/// Fetch multiple data contracts.
///
/// Returns [DataContracts](drive_proof_verifier::types::DataContracts) indexed by [Identifier](dpp::prelude::Identifier).
///
/// ## Supported query types
///
/// * [Vec<Identifier>](dpp::prelude::Identifier) - list of identifiers of data contracts to fetch
///
impl FetchMany<Identifier, DataContracts> for DataContract {
type Request = GetDataContractsRequest;
}
/// Fetch multiple [ContestedResource], indexed by Identifier.
///
/// ## Supported query types
///
/// * [VotePollsByDocumentTypeQuery]
impl FetchMany<Identifier, ContestedResources> for ContestedResource {
type Request = GetContestedResourcesRequest;
}
/// Fetch multiple contenders for a contested document resource vote poll.
///
/// Returns [Contender](drive_proof_verifier::types::Contenders) indexed by [Identifier](dpp::prelude::Identifier).
///
/// ## Supported query types
///
/// * [ContestedDocumentVotePollDriveQuery]
#[async_trait::async_trait]
impl FetchMany<Identifier, Contenders> for ContenderWithSerializedDocument {
type Request = GetContestedResourceVoteStateRequest;
}
/// Fetch voters
/// ## Supported query types
///
/// * [ContestedDocumentVotePollVotesDriveQuery]
impl FetchMany<usize, Voters> for Voter {
type Request = GetContestedResourceVotersForIdentityRequest;
}
// GetContestedResourceIdentityVoteStatus
/// Fetch votes of some identity for a contested document resource vote poll.
///
/// ## Supported query types
///
/// * [ContestedResourceVotesGivenByIdentityQuery]
impl FetchMany<Identifier, ResourceVotesByIdentity> for ResourceVote {
type Request = GetContestedResourceIdentityVotesRequest;
}
//
/// Fetch multiple vote polls grouped by timestamp.
///
/// ## Supported query types
///
/// * [VotePollsByEndDateDriveQuery]
impl FetchMany<TimestampMillis, VotePollsGroupedByTimestamp> for VotePoll {
type Request = GetVotePollsByEndDateRequest;
}
//
/// Fetch multiple identity balances.
///
/// ## Supported query types
///
/// * [Vec<Identifier>](dpp::prelude::Identifier) - list of identifiers of identities whose balance we want to fetch
impl FetchMany<Identifier, IdentityBalances> for drive_proof_verifier::types::IdentityBalance {
type Request = GetIdentitiesBalancesRequest;
}
//
/// Fetch multiple elements.
///
/// ## Supported query types
///
/// * [KeysInPath]
impl FetchMany<Key, Elements> for Element {
type Request = GetPathElementsRequest;
}