Preprocess


Create a Request to Fetch Metadata

Preprocess is called prior to /construction/payloads to construct a request for metadata (such as nonce) that are needed for transaction construction. The options object returned from preprocess will be sent to the /construction/metadata.

Request:

{
"network_identifier": {
"blockchain": "zilliqa",
"network": "testnet"
},
"operations": [
{
"operation_identifier": {
"index": 0
},
"type": "transfer",
"status": "",
"account": {
"address": "zil1n8uafq4thhzlq5nj50p55al9jvamr3s45hm49r",
"metadata": {
"base16": "99f9d482abbdC5F05272A3C34a77E5933Bb1c615"
}
},
"amount": {
"value": "-2000000000000",
"currency": {
"symbol": "ZIL",
"decimals": 12
}
}
},
{
"operation_identifier": {
"index": 1
},
"related_operations": [
{
"index": 0
}
],
"type": "transfer",
"status": "",
"account": {
"address": "zil1f9uqwhwkq7fnzgh5x4djyzg4a7j3apx8dsnnc0",
"metadata": {
"base16": "4978075dd607933122f4355B220915EFa51E84c7"
}
},
"amount": {
"value": "2000000000000",
"currency": {
"symbol": "ZIL",
"decimals": 12
}
},
"metadata": {
"senderPubKey": "0x02e44ef2c5c2031386faa6cafdf5f67318cc661871b0112a27458e65f37a35655e"
}
}
],
"metadata": {}
}

Response:

Sample

{
"options": {
"amount": "2000000000000",
"gasLimit": "1",
"gasPrice": "2000000000",
"senderAddr": "zil1n8uafq4thhzlq5nj50p55al9jvamr3s45hm49r",
"toAddr": "zil1f9uqwhwkq7fnzgh5x4djyzg4a7j3apx8dsnnc0"
},
"required_public_keys": [
{
"address": "zil1n8uafq4thhzlq5nj50p55al9jvamr3s45hm49r",
"metadata": {
"base16": "99f9d482abbdC5F05272A3C34a77E5933Bb1c615"
}
}
]
}