implement fetcher for blockfrost and maestro

[HinsonSIDAN]

Objective

Implement fetcher capability for maestro and blockfrost.

Reference

Fetcher type on mesh:

export interface IFetcher {
  fetchAccountInfo(address: string): Promise<AccountInfo>;
  fetchAddressUTxOs(address: string, asset?: string): Promise<UTxO[]>;
  fetchAssetAddresses(
    asset: string,
  ): Promise<{ address: string; quantity: string }[]>;
  fetchAssetMetadata(asset: string): Promise<AssetMetadata>;
  fetchBlockInfo(hash: string): Promise<BlockInfo>;
  fetchCollectionAssets(
    policyId: string,
    cursor?: number | string,
  ): Promise<{ assets: Asset[]; next?: string | number | null }>;
  fetchHandle(handle: string): Promise<object>;
  fetchHandleAddress(handle: string): Promise<string>;
  fetchProtocolParameters(epoch: number): Promise<Protocol>;
  fetchTxInfo(hash: string): Promise<TransactionInfo>;
  fetchUTxOs(hash: string): Promise<UTxO[]>;
  get(url: string): Promise<any>;
}


export interface ISubmitter {
  submitTx(tx: string): Promise<string>;
}

export interface IEvaluator {
  evaluateTx(tx: string): Promise<Omit<Action, "data">[]>;
}

Tasks

• Blockfrost - Fetcher
• Blockfrost - Evaluator
• Blockfrost - Submitter
• Maestro - Fetcher
• Blockfrost - Evaluator
• Blockfrost - Submitter