send-tx-thru-dandelion.sh

send-tx-thru-dandelion.sh

#!/usr/bin/env bash

set -e

NETWORK_MAGIC=1097911063
SOURCE_ADDRESS=$(cat ~/.cardano/wallets/testnet-repoc/payment.addr)
DESTINATION_ADDRESS=addr_test1vq87dp3djy6sz2yj23msw5d6ur96h0jsvks0p8mdwh2c0mghc68m3
PAYMENT_SKEY=${HOME}/.cardano/wallets/testnet-repoc/payment.skey
SEND_AMOUNT=10000000

CURRENT_EPOCH=$(curl -s "https://postgrest-api.testnet.dandelion.link/epoch?select=no&limit=1&order=no.desc" | jq .[].no)
TTL_VALID_FROM_SLOT_NO=$(curl -s "https://postgrest-api.testnet.dandelion.link/block?select=slot_no&epoch_no=eq.${CURRENT_EPOCH}&limit=1&order=slot_no.desc" | jq .[].slot_no)

curl 'https://graphql-api.testnet.dandelion.link/' -H 'Accept-Encoding: gzip, deflate, br' -H 'Content-Type: application/json' -H 'Accept: application/json' -H 'Connection: keep-alive' -H 'DNT: 1' -H 'Origin: https://graphql-api.testnet.dandelion.link' --data-binary '{"query":"query keyNetworkInfo {\n  genesis {\n    shelley {\n      protocolParams {\n        a0\n        decentralisationParam\n        eMax\n        extraEntropy\n        keyDeposit\n        maxBlockBodySize\n        maxBlockHeaderSize\n        maxTxSize\n        minFeeA\n        minFeeB\n        minPoolCost\n        minUTxOValue\n        nOpt\n        poolDeposit\n        protocolVersion\n        rho\n        tau\n      }\n    }\n  }\n}"}' --compressed | jq .data.genesis.shelley.protocolParams > /tmp/protparams.json

cat >/tmp/query<<EOF
{ "query" : "query utxoSetForAddress (
                \$address: String!
            ){
                utxos(
                    order_by: { value: desc }
                    where: { address: { _eq: \$address }}
                ) {
                    address
                    transaction {
                      hash
                    }
                    value
                }
            }",
  "variables": {
    "address": "${SOURCE_ADDRESS}"
  }
}
EOF
cat /tmp/query | tr '\r\n' ' ' > /tmp/query.sanitized

curl https://graphql-api.testnet.dandelion.link/ \
  -H 'Content-Type: application/json' -H 'Accept: application/json' \
  --data-binary @/tmp/query.sanitized | jq .data.utxos > /tmp/utxos.json

IN_UTXO=$(jq -r 'to_entries | .[] | "\(.value.transaction.hash)#\(.key)"' /tmp/utxos.json | awk '{print "--tx-in "$0}' | xargs)
UTXO_COUNT=$(jq length /tmp/utxos.json)
IN_BALANCE="$(jq -r .[].value /tmp/utxos.json | awk '{s+=$1} END {printf "%.0f", s}')"

cardano-cli transaction build-raw \
            --allegra-era \
            --fee 0 \
      	    ${IN_UTXO} \
      	    --tx-out="${DESTINATION_ADDRESS}+${SEND_AMOUNT} lovelace" \
      	    --tx-out="${SOURCE_ADDRESS}+$(( ${IN_BALANCE} - ${SEND_AMOUNT})) lovelace" \
            --out-file txbody

ACTUAL_MIN_FEE=$(cardano-cli transaction calculate-min-fee \
                 --tx-body-file txbody \
                 --tx-in-count ${UTXO_COUNT} \
                 --tx-out-count 1 \
                 --witness-count 1 \
                 --byron-witness-count 0 \
                 --protocol-params-file /tmp/protparams.json | awk '{print $1}')

cardano-cli transaction build-raw \
            --allegra-era \
            --invalid-hereafter $(( $TTL_VALID_FROM_SLOT_NO + 1000 )) \
            --fee ${ACTUAL_MIN_FEE} \
      	    ${IN_UTXO} \
      	    --tx-out="${DESTINATION_ADDRESS}+${SEND_AMOUNT} lovelace" \
      	    --tx-out="${SOURCE_ADDRESS}+$(( ${IN_BALANCE} - ${ACTUAL_MIN_FEE} - ${SEND_AMOUNT})) lovelace" \
            --out-file txbody-ok-fee

cardano-cli transaction sign \
            --testnet-magic ${NETWORK_MAGIC} \
            --signing-key-file ${PAYMENT_SKEY} \
            --tx-body-file txbody-ok-fee \
            --out-file     tx.signed

xxd -r -p <<< $(jq .cborHex tx.signed) > tx.submit-api

#cardano-cli transaction submit --tx-file ${TOKEN_NAME}.tx.signed --testnet-magic ${NETWORK_MAGIC}
curl -X POST \
  --header "Content-Type: application/cbor" \
  --data-binary @tx.submit-api \
  https://submit-api.testnet.dandelion.link/api/submit/tx