block-headers-client
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bitcoin-sv
transactionCount is 0
transactionCount is always 0, block-headers-client seems to be synced i.e latest block.
curl localhost:8080/api/v1/chain/header/byHeight?height=111 | jq [ { "hash": "000000004d6a6dd8b882deec7b54421949dddd2c166bd51ee7f62a52091a6c35", "version": 1, "prevBlockHash": "00000000a30e366158a1813a6fda9f913497000a68f1c008b9f935b866cee55b", "merkleRoot": "e7a3e246c6f2d582b089d7d6c2f925e8aae46ef0c0ce97d3dd3afe3016a44e97", "creationTimestamp": 1231669673, "difficultyTarget": 486604799, "nonce": 4076340484, "transactionCount": 0, "work": 4295032833 } ]
curl localhost:8080/api/v1/chain/header/byHeight?height=53632 | jq [ { "hash": "0000000007e3599bd68f98d157d3f20c2f7bfd20425e75e4f240601136721243", "version": 1, "prevBlockHash": "000000000a092c00132d96afc15c71f4d9b7102a22aff200e379652823bfd0c7", "merkleRoot": "c5e25d3bdf874b3fb22a23e4f6a41b064dbc35cde523d7502e073e6258dd2f8e", "creationTimestamp": 1272529571, "difficultyTarget": 471225455, "nonce": 205556418, "transactionCount": 0, "work": 49239612792 } ]
curl localhost:8080/api/v1/chain/tips | jq [ { "header": { "hash": "000000000000000005a6f74c10a5475c91c83aa04315c0724c91a18337af3f42", "version": 1073733632, "prevBlockHash": "000000000000000009a58b63f26498fa69077d31385dc7b815d8ee9aeb5a6ec6", "merkleRoot": "cf3272201f9d3af64593ad1b5b5d153e7f1fbb4633b490d60cfe74b96455f1d9", "creationTimestamp": 1660569967, "difficultyTarget": 403624649, "nonce": 821452442, "transactionCount": 0, "work": 318575563526575900000 }, "state": "LONGEST_CHAIN", "chainWork": 380740663188207560000000000, "height": 752808, "confirmations": 1 } ]
It is not possible to determine the number of transactions in a block using SPV. To determine the number of transactions in a block using the existing P2P protocol, one would have to download the whole block. This would be inconsistent with the principles of SPV.
This field should not have been added to the result set. It will be removed. However, to do so would be a change in the API, so this change will only occur during the release of the next major version. This bug is in itself not enough to trigger the release of a new major version.
So, this bug will remain for now.
I've added a backlog item to implement this bugfix https://github.com/bitcoin-sv/block-headers-client/issues/24