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75a8c6459a
* [NOD-306] Implement API-Server GET /block/{hash}
* [NOD-306] Validate that hash string is a valid hex
* [NOD-306] Unite invalid hash errors
25 lines
941 B
Go
25 lines
941 B
Go
package controllers
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import (
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"encoding/hex"
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"fmt"
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"github.com/daglabs/btcd/apiserver/database"
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"github.com/daglabs/btcd/apiserver/models"
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"github.com/daglabs/btcd/apiserver/utils"
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"github.com/daglabs/btcd/util/daghash"
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"net/http"
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)
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// GetBlockByHashHandler returns a block by a given hash.
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func GetBlockByHashHandler(blockHash string) (interface{}, *utils.HandlerError) {
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if bytes, err := hex.DecodeString(blockHash); err != nil || len(bytes) != daghash.HashSize {
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return nil, utils.NewHandlerError(http.StatusUnprocessableEntity, fmt.Sprintf("The given block hash is not a hex-encoded %d-byte hash.", daghash.HashSize))
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}
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block := &models.Block{}
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database.DB.Where(&models.Block{BlockHash: blockHash}).Preload("AcceptingBlock").First(block)
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if block.ID == 0 {
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return nil, utils.NewHandlerError(http.StatusNotFound, "No block with the given block hash was found.")
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}
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return convertBlockModelToBlockResponse(block), nil
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}
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