mirror of
https://github.com/bitcoin/bitcoin.git
synced 2025-02-09 10:43:19 -05:00
c456302d42
Describing an optional sub-path as <checkmempool> in the synopsis could be misleading as the angle brackets normally indicate that the field has to be replaced a custom value. Clarify that by showing two variants instead, similar to the block endpoint with the notxdetails option. Further improvements: - uppercase <TXID> and <N>, to match the description of the other endpoints - s/getutxo command/getutxos endpoint/ - describe what the checkmempool option does - s/serialisation/serialization/ (the US spelling is more dominant than the UK spelling in the project, and there is indeed no other instance of the string "serialis*" in the source tree, except once in a release note) - link to BIP64 within the text instead of only showing bare URL - mention that BIP64 is only relevant for bin and hex output formats - show two endpoint formats of the block section as list
137 lines
5.5 KiB
Markdown
137 lines
5.5 KiB
Markdown
Unauthenticated REST Interface
|
|
==============================
|
|
|
|
The REST API can be enabled with the `-rest` option.
|
|
|
|
The interface runs on the same port as the JSON-RPC interface, by default port 8332 for mainnet, port 18332 for testnet,
|
|
port 38332 for signet, and port 18443 for regtest.
|
|
|
|
REST Interface consistency guarantees
|
|
-------------------------------------
|
|
|
|
The [same guarantees as for the RPC Interface](/doc/JSON-RPC-interface.md#rpc-consistency-guarantees)
|
|
apply.
|
|
|
|
Limitations
|
|
-----------
|
|
|
|
There is a known issue in the REST interface that can cause a node to crash if
|
|
too many http connections are being opened at the same time because the system runs
|
|
out of available file descriptors. To prevent this from happening you might
|
|
want to increase the number of maximum allowed file descriptors in your system
|
|
and try to prevent opening too many connections to your rest interface at the
|
|
same time if this is under your control. It is hard to give general advice
|
|
since this depends on your system but if you make several hundred requests at
|
|
once you are definitely at risk of encountering this issue.
|
|
|
|
Supported API
|
|
-------------
|
|
|
|
#### Transactions
|
|
`GET /rest/tx/<TX-HASH>.<bin|hex|json>`
|
|
|
|
Given a transaction hash: returns a transaction in binary, hex-encoded binary, or JSON formats.
|
|
|
|
By default, this endpoint will only search the mempool.
|
|
To query for a confirmed transaction, enable the transaction index via "txindex=1" command line / configuration option.
|
|
|
|
#### Blocks
|
|
- `GET /rest/block/<BLOCK-HASH>.<bin|hex|json>`
|
|
- `GET /rest/block/notxdetails/<BLOCK-HASH>.<bin|hex|json>`
|
|
|
|
Given a block hash: returns a block, in binary, hex-encoded binary or JSON formats.
|
|
Responds with 404 if the block doesn't exist.
|
|
|
|
The HTTP request and response are both handled entirely in-memory.
|
|
|
|
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.
|
|
|
|
#### Blockheaders
|
|
`GET /rest/headers/<COUNT>/<BLOCK-HASH>.<bin|hex|json>`
|
|
|
|
Given a block hash: returns <COUNT> amount of blockheaders in upward direction.
|
|
Returns empty if the block doesn't exist or it isn't in the active chain.
|
|
|
|
#### Blockfilter Headers
|
|
`GET /rest/blockfilterheaders/<FILTERTYPE>/<COUNT>/<BLOCK-HASH>.<bin|hex|json>`
|
|
|
|
Given a block hash: returns <COUNT> amount of blockfilter headers in upward
|
|
direction for the filter type <FILTERTYPE>.
|
|
Returns empty if the block doesn't exist or it isn't in the active chain.
|
|
|
|
#### Blockfilters
|
|
`GET /rest/blockfilter/<FILTERTYPE>/<BLOCK-HASH>.<bin|hex|json>`
|
|
|
|
Given a block hash: returns the block filter of the given block of type
|
|
<FILTERTYPE>.
|
|
Responds with 404 if the block doesn't exist.
|
|
|
|
#### Blockhash by height
|
|
`GET /rest/blockhashbyheight/<HEIGHT>.<bin|hex|json>`
|
|
|
|
Given a height: returns hash of block in best-block-chain at height provided.
|
|
|
|
#### Chaininfos
|
|
`GET /rest/chaininfo.json`
|
|
|
|
Returns various state info regarding block chain processing.
|
|
Only supports JSON as output format.
|
|
* chain : (string) current network name (main, test, signet, regtest)
|
|
* blocks : (numeric) the current number of blocks processed in the server
|
|
* headers : (numeric) the current number of headers we have validated
|
|
* bestblockhash : (string) the hash of the currently best block
|
|
* difficulty : (numeric) the current difficulty
|
|
* mediantime : (numeric) the median time of the 11 blocks before the most recent block on the blockchain
|
|
* verificationprogress : (numeric) estimate of verification progress [0..1]
|
|
* chainwork : (string) total amount of work in active chain, in hexadecimal
|
|
* pruned : (boolean) if the blocks are subject to pruning
|
|
* pruneheight : (numeric) highest block available
|
|
* softforks : (array) status of softforks in progress
|
|
|
|
#### Query UTXO set
|
|
- `GET /rest/getutxos/<TXID>-<N>/<TXID>-<N>/.../<TXID>-<N>.<bin|hex|json>`
|
|
- `GET /rest/getutxos/checkmempool/<TXID>-<N>/<TXID>-<N>/.../<TXID>-<N>.<bin|hex|json>`
|
|
|
|
The getutxos endpoint allows querying the UTXO set, given a set of outpoints.
|
|
With the `/checkmempool/` option, the mempool is also taken into account.
|
|
See [BIP64](https://github.com/bitcoin/bips/blob/master/bip-0064.mediawiki) for
|
|
input and output serialization (relevant for `bin` and `hex` output formats).
|
|
|
|
Example:
|
|
```
|
|
$ curl localhost:18332/rest/getutxos/checkmempool/b2cdfd7b89def827ff8af7cd9bff7627ff72e5e8b0f71210f92ea7a4000c5d75-0.json 2>/dev/null | json_pp
|
|
{
|
|
"chainHeight" : 325347,
|
|
"chaintipHash" : "00000000fb01a7f3745a717f8caebee056c484e6e0bfe4a9591c235bb70506fb",
|
|
"bitmap": "1",
|
|
"utxos" : [
|
|
{
|
|
"height" : 2147483647,
|
|
"value" : 8.8687,
|
|
"scriptPubKey" : {
|
|
"asm" : "OP_DUP OP_HASH160 1c7cebb529b86a04c683dfa87be49de35bcf589e OP_EQUALVERIFY OP_CHECKSIG",
|
|
"desc" : "addr(mi7as51dvLJsizWnTMurtRmrP8hG2m1XvD)#gj9tznmy"
|
|
"hex" : "76a9141c7cebb529b86a04c683dfa87be49de35bcf589e88ac",
|
|
"type" : "pubkeyhash",
|
|
"address" : "mi7as51dvLJsizWnTMurtRmrP8hG2m1XvD"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
```
|
|
|
|
#### Memory pool
|
|
`GET /rest/mempool/info.json`
|
|
|
|
Returns various information about the TX mempool.
|
|
Only supports JSON as output format.
|
|
Refer to the `getmempoolinfo` RPC for documentation of the fields.
|
|
|
|
`GET /rest/mempool/contents.json`
|
|
|
|
Returns transactions in the TX mempool.
|
|
Only supports JSON as output format.
|
|
|
|
Risks
|
|
-------------
|
|
Running a web browser 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.
|