84 lines
3.1 KiB
Markdown
84 lines
3.1 KiB
Markdown
Unauthenticated REST Interface
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==============================
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The REST API can be enabled with the `-rest` option.
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Supported API
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-------------
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####Transactions
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`GET /rest/tx/<TX-HASH>.<bin|hex|json>`
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Given a transaction hash,
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Returns a transaction, in binary, hex-encoded binary or JSON formats.
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For full TX query capability, one must enable the transaction index via "txindex=1" command line / configuration option.
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####Blocks
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`GET /rest/block/<BLOCK-HASH>.<bin|hex|json>`
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`GET /rest/block/notxdetails/<BLOCK-HASH>.<bin|hex|json>`
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Given a block hash,
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Returns a block, in binary, hex-encoded binary or JSON formats.
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The HTTP request and response are both handled entirely in-memory, thus making maximum memory usage at least 2.66MB (1 MB max block, plus hex encoding) per request.
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With the /notxdetails/ option JSON response will only contain the transaction hash instead of the complete transaction details. The option only affects the JSON response.
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####Blockheaders
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`GET /rest/headers/<COUNT>/<BLOCK-HASH>.<bin|hex>`
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Given a block hash,
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Returns <COUNT> amount of blockheaders in upward direction.
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JSON is not supported.
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####Chaininfos
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`GET /rest/chaininfo.json`
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Returns various state info regarding block chain processing.
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Only supports JSON as output format.
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* chain : (string) current network name as defined in BIP70 (main, test, regtest)
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* blocks : (numeric) the current number of blocks processed in the server
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* headers : (numeric) the current number of headers we have validated
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* bestblockhash : (string) the hash of the currently best block
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* difficulty : (numeric) the current difficulty
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* verificationprogress : (numeric) estimate of verification progress [0..1]
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* chainwork : (string) total amount of work in active chain, in hexadecimal
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####Query UTXO set
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`GET /rest/getutxos.<bin|hex|json>`
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The getutxo command allows querying of the UTXO set given a set of outpoints.
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See BIP64 for input and output serialisation:
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https://github.com/bitcoin/bips/blob/master/bip-0064.mediawiki
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Example:
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```
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$ curl --data '{"checkmempool":true,"outpoints":[{"txid":"b2cdfd7b89def827ff8af7cd9bff7627ff72e5e8b0f71210f92ea7a4000c5d75","n":0}]}' localhost:18332/rest/getutxos.json 2>/dev/null | json_pp
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{
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"chaintipHash" : "00000000fb01a7f3745a717f8caebee056c484e6e0bfe4a9591c235bb70506fb",
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"chainHeight" : 325347,
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"utxos" : [
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{
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"scriptPubKey" : {
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"addresses" : [
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"mi7as51dvLJsizWnTMurtRmrP8hG2m1XvD"
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],
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"type" : "pubkeyhash",
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"hex" : "76a9141c7cebb529b86a04c683dfa87be49de35bcf589e88ac",
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"reqSigs" : 1,
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"asm" : "OP_DUP OP_HASH160 1c7cebb529b86a04c683dfa87be49de35bcf589e OP_EQUALVERIFY OP_CHECKSIG"
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},
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"value" : 8.8687,
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"height" : 2147483647,
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"txvers" : 1
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}
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],
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"bitmap" : "1"
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}
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```
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Risks
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-------------
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Running a webbrowser on the same node with a REST enabled bitcoind can be a risk. Accessing prepared XSS websites could read out tx/block data of your node by placing links like `<script src="http://127.0.0.1:8332/rest/tx/1234567890.json">` which might break the nodes privacy.
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