# Data to construct a block

It returns data needed to construct a block to work on. 

Endpoint: GET /daemon/getblocktemplate
Version: 6.6.1

## Query parameters:

  - `jsonrequestobject` (object)
    If the request parameters include a 'mode' key, that is used
to explicitly select between the default template request or a
proposal. This must be set to "template" or omitted.

For the capabilities array of strings the following are the client side supported features.
- 
- 
- 
- 
- 
-
    Example: {"mode":"template","capabilities":["proposal"]}

## Response 200 fields (application/json):

  - `status` (string)
    Explanation of status
    Enum: "success", "error"

  - `data` (object)

  - `data.capabilities` (array)

  - `data.version` (integer)
    Version number

  - `data.previousblockhash` (string)
    Block hash of current highest block

  - `data.finalsaplingroothash` (string)
    Hash of the final sapling root

  - `data.transactions` (array)

  - `data.transactions.data` (string)
    Transaction data encoded in hexadecimal

  - `data.transactions.hash` (string)
    Hash/id encoded in little-endian hexadecimal

  - `data.transactions.depends` (array)

  - `data.transactions.fee` (integer)
    Difference in value between transaction inputs and outputs(in Satoshis); for coinbase transactions, this is a negative number of the collected block fees (ie, not including the block subsidy); if key is not present, fee is unknown and client must not assume there isn't one

  - `data.transactions.sigops` (integer)
    Total number of SigOps, as counted for purposes of the block limits; if key is not present, sigop count is unknown and clients must not assume there aren't any

  - `data.transactions.required` (boolean)
    If provided and true, this transaction must be in the final block

  - `data.coinbasetxn` (object)

  - `data.longpollid` (string)
    Long polling id

  - `data.target` (string)
    The hash target

  - `data.mintime` (integer)
    The minimum timestamp appropriate for the next block time in seconds since epoch (Jan 1 1970 GMT)

  - `data.mutable` (array)

  - `data.noncerange` (string)
    A range of valid nonces

  - `data.sigoplimit` (integer)
    Limit of sigops in the blocks

  - `data.sizelimit` (integer)
    Limit of block size

  - `data.curtime` (integer)
    Current timestamp in seconds since epoch (Jan 1 1970 GMT)

  - `data.bits` (string)
    Compressed target of next block

  - `data.height` (integer)
    The height of the next block

  - `data.basic_fluxnode_address` (string)
    FLUX address

  - `data.basic_fluxnode_payout` (integer)
    Amount

  - `data.super_fluxnode_address` (string)
    FLUX address

  - `data.super_fluxnode_payout` (integer)
    Amount

  - `data.bamf_fluxnode_address` (string)
    FLUX address

  - `data.bamf_fluxnode_payout` (integer)
    Amount