56 lines
2.4 KiB
Go
56 lines
2.4 KiB
Go
// Copyright 2017-2021 DERO Project. All rights reserved.
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// Use of this source code in any form is governed by RESEARCH license.
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// license can be found in the LICENSE file.
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// GPG: 0F39 E425 8C65 3947 702A 8234 08B2 0360 A03A 9DE8
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//
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package main
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import "fmt"
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import "context"
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import "runtime/debug"
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import "github.com/deroproject/derohe/rpc"
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func (DERO_RPC_APIS) GetBlockHeaderByTopoHeight(ctx context.Context, p rpc.GetBlockHeaderByTopoHeight_Params) (result rpc.GetBlockHeaderByHeight_Result, err error) {
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defer func() { // safety so if anything wrong happens, we return error
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if r := recover(); r != nil {
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err = fmt.Errorf("panic occured. stack trace %s", debug.Stack())
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}
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}()
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if int64(p.TopoHeight) > chain.Load_TOPO_HEIGHT() {
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err = fmt.Errorf("Too big topo height: %d, current blockchain height = %d", p.TopoHeight, chain.Load_TOPO_HEIGHT())
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return
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}
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//return nil, &jsonrpc.Error{Code: -2, Message: fmt.Sprintf("NOT SUPPORTED height: %d, current blockchain height = %d", p.Height, chain.Get_Height())}
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hash, err := chain.Load_Block_Topological_order_at_index(int64(p.TopoHeight))
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if err != nil { // if err return err
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err = fmt.Errorf("User requested %d height block, chain topo height %d but err occured %s", p.TopoHeight, chain.Load_TOPO_HEIGHT(), err)
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return
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}
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block_header, err := chain.GetBlockHeader(hash)
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if err != nil { // if err return err
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err = fmt.Errorf("User requested %d height block, chain topo height %d but err occured %s", p.TopoHeight, chain.Load_TOPO_HEIGHT(), err)
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return
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}
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return rpc.GetBlockHeaderByHeight_Result{ // return success
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Block_Header: block_header,
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Status: "OK",
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}, nil
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}
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