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Merge pull request #1901 from mempool/simon/block-tip-hash-api

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Adding missing Block Tip Hash API
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wiz 2022-07-06 00:01:44 +02:00 committed by GitHub
commit 1ebf089d37
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5 changed files with 24 additions and 0 deletions
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1
backend/src/api/bitcoin/bitcoin-api-abstract-factory.ts
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@ -4,6 +4,7 @@ export interface AbstractBitcoinApi {
$getRawMempool(): Promise<IEsploraApi.Transaction['txid'][]>;
$getRawTransaction(txId: string, skipConversion?: boolean, addPrevout?: boolean, lazyPrevouts?: boolean): Promise<IEsploraApi.Transaction>;
$getBlockHeightTip(): Promise<number>;
$getBlockHashTip(): Promise<string>;
$getTxIdsForBlock(hash: string): Promise<string[]>;
$getBlockHash(height: number): Promise<string>;
$getBlockHeader(hash: string): Promise<string>;

7
backend/src/api/bitcoin/bitcoin-api.ts
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@ -64,6 +64,13 @@ class BitcoinApi implements AbstractBitcoinApi {
});
}
$getBlockHashTip(): Promise<string> {
return this.bitcoindClient.getChainTips()
.then((result: IBitcoinApi.ChainTips[]) => {
return result.find(tip => tip.status === 'active')!.hash;
});
}
$getTxIdsForBlock(hash: string): Promise<string[]> {
return this.bitcoindClient.getBlock(hash, 1)
.then((rpcBlock: IBitcoinApi.Block) => rpcBlock.tx);

5
backend/src/api/bitcoin/esplora-api.ts
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@ -25,6 +25,11 @@ class ElectrsApi implements AbstractBitcoinApi {
.then((response) => response.data);
}
$getBlockHashTip(): Promise<string> {
return axios.get<string>(config.ESPLORA.REST_API_URL + '/blocks/tip/hash', this.axiosConfig)
.then((response) => response.data);
}
$getTxIdsForBlock(hash: string): Promise<string[]> {
return axios.get<string[]>(config.ESPLORA.REST_API_URL + '/block/' + hash + '/txids', this.axiosConfig)
.then((response) => response.data);

1
backend/src/index.ts
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@ -332,6 +332,7 @@ class Server {
.get(config.MEMPOOL.API_URL_PREFIX + 'tx/:txId/outspends', routes.getTransactionOutspends)
.get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/header', routes.getBlockHeader)
.get(config.MEMPOOL.API_URL_PREFIX + 'blocks/tip/height', routes.getBlockTipHeight)
.get(config.MEMPOOL.API_URL_PREFIX + 'blocks/tip/hash', routes.getBlockTipHash)
.get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/txs', routes.getBlockTransactions)
.get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/txs/:index', routes.getBlockTransactions)
.get(config.MEMPOOL.API_URL_PREFIX + 'block/:hash/txids', routes.getTxIdsForBlock)

10
backend/src/routes.ts
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@ -925,6 +925,16 @@ class Routes {
}
}
public async getBlockTipHash(req: Request, res: Response) {
try {
const result = await bitcoinApi.$getBlockHashTip();
res.setHeader('content-type', 'text/plain');
res.send(result);
} catch (e) {
res.status(500).send(e instanceof Error ? e.message : e);
}
}
public async getTxIdsForBlock(req: Request, res: Response) {
try {
const result = await bitcoinApi.$getTxIdsForBlock(req.params.hash);