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MPT metadata sample code: add lookup/decoding to example

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mDuo13
2025-08-21 14:53:24 -07:00
parent 6c16fa1611
commit 01f835c351
2 changed files with 46 additions and 12 deletions
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30
_code-samples/issue-mpt-with-metadata/js/issue-mpt-with-metadata.js
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@@ -1,4 +1,4 @@
import { stringToHex } from '@xrplf/isomorphic/dist/utils/index.js'
import { stringToHex, hexToString } from '@xrplf/isomorphic/dist/utils/index.js'
import { MPTokenIssuanceCreateFlags, Client } from 'xrpl'
// Connect to network and get a wallet
@@ -55,13 +55,31 @@ const mpt_issuance_create = {
// Prepare, sign, and submit the transaction
console.log('Sending MPTokenIssuanceCreate transaction...')
const result = await client.submitAndWait(mpt_issuance_create, { wallet, autofill: true })
const submit_response = await client.submitAndWait(mpt_issuance_create, { wallet, autofill: true })
// Check transaction results and disconnect
console.log(JSON.stringify(result, null, 2))
if (result.result.meta.TransactionResult === 'tesSUCCESS') {
const issuance_id = result.result.meta.mpt_issuance_id
console.log(`MPToken created successfully with issuance ID ${issuance_id}.`)
console.log(JSON.stringify(submit_response, null, 2))
if (submit_response.result.meta.TransactionResult !== 'tesSUCCESS') {
const result_code = response.result.meta.TransactionResult
console.warn(`Transaction failed with result code ${result_code}.`)
process.exit(1)
}
const issuance_id = submit_response.result.meta.mpt_issuance_id
console.log(`MPToken created successfully with issuance ID ${issuance_id}.`)
// Look up MPT Issuance entry in the validated ledger
console.log('Confirming MPT Issuance metadata in the validated ledger.')
const ledger_entry_response = await client.request({
"command": "ledger_entry",
"mpt_issuance": issuance_id,
"ledger_index": "validated"
})
// Decode the metadata
const metadata_blob = ledger_entry_response.result.node.MPTokenMetadata
const decoded_metadata = JSON.parse(hexToString(metadata_blob))
console.log('Decoded metadata:', decoded_metadata)
client.disconnect()