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| 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 | 50x 50x 50x 50x 200x 1x 204x 200x 200x 1x 208x 208x 208x 208x 416x 208x 208x 208x 208x 208x 208x 208x | import { Cardano, Serialization } from '@cardano-sdk/core';
import { Hash32ByteBase16 } from '@cardano-sdk/crypto';
import { HexBlob } from '@cardano-sdk/util';
import { Responses } from '@blockfrost/blockfrost-js';
type Unpacked<T> = T extends (infer U)[] ? U : T;
type BlockfrostAddressUtxoContent = Responses['address_utxo_content'];
type BlockfrostInputs = Responses['tx_content_utxo']['inputs'];
type BlockfrostInput = Pick<Unpacked<BlockfrostInputs>, 'address' | 'amount' | 'output_index' | 'tx_hash'>;
type BlockfrostOutputs = Responses['tx_content_utxo']['outputs'];
type BlockfrostOutput = Unpacked<BlockfrostOutputs>;
export type BlockfrostTransactionContent = Unpacked<Responses['address_transactions_content']>;
export type BlockfrostUtxo = Unpacked<BlockfrostAddressUtxoContent>;
export const BlockfrostToCore = {
addressUtxoContent: (
address: string,
utxo: Responses['address_utxo_content'][0],
txOutFromCbor?: Cardano.TxOut
): Cardano.Utxo =>
[
BlockfrostToCore.hydratedTxIn(BlockfrostToCore.inputFromUtxo(address, utxo)),
BlockfrostToCore.txOut(BlockfrostToCore.outputFromUtxo(address, utxo), txOutFromCbor)
] as Cardano.Utxo,
blockToTip: (block: Responses['block_content']): Cardano.Tip => ({
blockNo: Cardano.BlockNo(block.height!),
hash: Cardano.BlockId(block.hash),
slot: Cardano.Slot(block.slot!)
}),
hydratedTxIn: (blockfrost: BlockfrostInput): Cardano.HydratedTxIn => ({
address: Cardano.PaymentAddress(blockfrost.address),
index: blockfrost.output_index,
txId: Cardano.TransactionId(blockfrost.tx_hash)
}),
inputFromUtxo: (address: string, utxo: BlockfrostUtxo): BlockfrostInput => ({
address,
amount: utxo.amount,
output_index: utxo.output_index,
tx_hash: utxo.tx_hash
}),
inputs: (inputs: BlockfrostInputs): Cardano.TxIn[] => inputs.map((input) => BlockfrostToCore.hydratedTxIn(input)),
outputFromUtxo: (address: string, utxo: BlockfrostUtxo): BlockfrostOutput => ({
...utxo,
address,
collateral: false
}),
outputs: (outputs: BlockfrostOutputs): Cardano.TxOut[] => outputs.map((output) => BlockfrostToCore.txOut(output)),
// @todo Blockfrost library does not provide NewProtocolParamsInConway parameters yet
protocolParameters: (blockfrost: Responses['epoch_param_content']): Cardano.ProtocolParameters => ({
coinsPerUtxoByte: Number(blockfrost.coins_per_utxo_word),
collateralPercentage: blockfrost.collateral_percent!,
committeeTermLimit: Cardano.EpochNo(0),
costModels: new Map<Cardano.PlutusLanguageVersion, Cardano.CostModel>([
[Cardano.PlutusLanguageVersion.V1, Object.values(blockfrost.cost_models!.PlutusV1 as { [key: string]: number })],
[Cardano.PlutusLanguageVersion.V2, Object.values(blockfrost.cost_models!.PlutusV2 as { [key: string]: number })]
]),
dRepDeposit: 0,
dRepInactivityPeriod: Cardano.EpochNo(0),
dRepVotingThresholds: null as unknown as Cardano.DelegateRepresentativeThresholds,
desiredNumberOfPools: blockfrost.n_opt,
governanceActionDeposit: 0,
governanceActionValidityPeriod: Cardano.EpochNo(0),
maxBlockBodySize: blockfrost.max_block_size,
maxBlockHeaderSize: blockfrost.max_block_header_size,
maxCollateralInputs: Number(blockfrost.max_collateral_inputs),
maxExecutionUnitsPerBlock: {
memory: Number.parseInt(blockfrost.max_block_ex_mem!),
steps: Number.parseInt(blockfrost.max_block_ex_steps!)
},
maxExecutionUnitsPerTransaction: {
memory: Number.parseInt(blockfrost.max_tx_ex_mem!),
steps: Number.parseInt(blockfrost.max_tx_ex_steps!)
},
maxTxSize: Number(blockfrost.max_tx_size),
maxValueSize: Number(blockfrost.max_val_size),
minCommitteeSize: 0,
minFeeCoefficient: blockfrost.min_fee_a,
minFeeConstant: blockfrost.min_fee_b,
minPoolCost: Number(blockfrost.min_pool_cost),
monetaryExpansion: blockfrost.rho.toString(),
poolDeposit: Number(blockfrost.pool_deposit),
poolInfluence: blockfrost.a0.toString(),
poolRetirementEpochBound: blockfrost.e_max,
poolVotingThresholds: null as unknown as Cardano.PoolVotingThresholds,
prices: {
memory: blockfrost.price_mem!,
steps: blockfrost.price_step!
},
protocolVersion: { major: blockfrost.protocol_major_ver, minor: blockfrost.protocol_minor_ver },
stakeKeyDeposit: Number(blockfrost.key_deposit),
treasuryExpansion: blockfrost.tau.toString()
}),
txOut: (blockfrost: BlockfrostOutput, txOutFromCbor?: Cardano.TxOut): Cardano.TxOut => {
const value: Cardano.Value = {
coins: BigInt(blockfrost.amount.find(({ unit }) => unit === 'lovelace')!.quantity)
};
const assets: Cardano.TokenMap = new Map();
for (const { quantity, unit } of blockfrost.amount) {
if (unit === 'lovelace') continue;
assets.set(Cardano.AssetId(unit), BigInt(quantity));
}
if (assets.size > 0) value.assets = assets;
const txOut: Cardano.TxOut = {
address: Cardano.PaymentAddress(blockfrost.address),
value
};
Iif (blockfrost.inline_datum)
txOut.datum = Serialization.PlutusData.fromCbor(HexBlob(blockfrost.inline_datum)).toCore();
Iif (blockfrost.data_hash) txOut.datumHash = Hash32ByteBase16(blockfrost.data_hash);
Iif (txOutFromCbor?.scriptReference) txOut.scriptReference = txOutFromCbor.scriptReference;
return txOut;
}
};
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