Documentation exported from Syscoin Core 4.4.1

scanblocks (4.4.1 RPC)

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scanblocks "action" ( [scanobjects,...] start_height stop_height "filtertype" "options" )

Return relevant blockhashes for given descriptors (requires blockfilterindex).
This call may take several minutes. Make sure to use no RPC timeout (syscoin-cli -rpcclienttimeout=0)

Arguments:
1. action                                 (string, required) The action to execute
                                          "start" for starting a scan
                                          "abort" for aborting the current scan (returns true when abort was successful)
                                          "status" for progress report (in %) of the current scan
2. scanobjects                            (json array, optional) Array of scan objects. Required for "start" action
                                          Every scan object is either a string descriptor or an object:
     [
       "descriptor",                      (string) An output descriptor
       {                                  (json object) An object with output descriptor and metadata
         "desc": "str",                   (string, required) An output descriptor
         "range": n or [n,n],             (numeric or array, optional, default=1000) The range of HD chain indexes to explore (either end or [begin,end])
       },
       ...
     ]
3. start_height                           (numeric, optional, default=0) Height to start to scan from
4. stop_height                            (numeric, optional, default=chain tip) Height to stop to scan
5. filtertype                             (string, optional, default="basic") The type name of the filter
6. options                                (json object, optional)
     {
       "filter_false_positives": bool,    (boolean, optional, default=false) Filter false positives (slower and may fail on pruned nodes). Otherwise they may occur at a rate of 1/M
     }

Result (when action=='status' and no scan is in progress - possibly already completed):
null    (json null)

Result (When action=='start'; only returns after scan completes):
{                          (json object)
  "from_height" : n,       (numeric) The height we started the scan from
  "to_height" : n,         (numeric) The height we ended the scan at
  "relevant_blocks" : [    (json array) Blocks that may have matched a scanobject.
    "hex",                 (string) A relevant blockhash
    ...
  ]
}

Result (when action=='status' and a scan is currently in progress):
{                          (json object)
  "progress" : n,          (numeric) Approximate percent complete
  "current_height" : n     (numeric) Height of the block currently being scanned
}

Result (when action=='abort'):
true|false    (boolean) True if scan will be aborted (not necessarily before this RPC returns), or false if there is no scan to abort

Examples:
> syscoin-cli scanblocks start '["addr(bcrt1q4u4nsgk6ug0sqz7r3rj9tykjxrsl0yy4d0wwte)"]' 300000
> syscoin-cli scanblocks start '["addr(bcrt1q4u4nsgk6ug0sqz7r3rj9tykjxrsl0yy4d0wwte)"]' 100 150 basic
> syscoin-cli scanblocks status
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "scanblocks", "params": ["start", ["addr(bcrt1q4u4nsgk6ug0sqz7r3rj9tykjxrsl0yy4d0wwte)"], 300000]}' -H 'content-type: text/plain;' http://127.0.0.1:8370/
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "scanblocks", "params": ["start", ["addr(bcrt1q4u4nsgk6ug0sqz7r3rj9tykjxrsl0yy4d0wwte)"], 100, 150, "basic"]}' -H 'content-type: text/plain;' http://127.0.0.1:8370/
> curl --user myusername --data-binary '{"jsonrpc": "1.0", "id": "curltest", "method": "scanblocks", "params": ["status"]}' -H 'content-type: text/plain;' http://127.0.0.1:8370/