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Merge pull request #3233 from XRPLF/mpt_metadata_sample

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Add sample code for XLS-89d MPT Metadata
This commit is contained in:
Rome Reginelli
2025-08-29 12:21:59 -07:00
committed by GitHub
parent 7b0ac8d3cb 9d8819cbf6
commit 3a548a5b69
9 changed files with 218 additions and 3 deletions
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4
docs/references/protocol/ledger-data/ledger-entry-types/mptokenissuance.md
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@@ -21,14 +21,14 @@ _(Requires the [MPTokensV1 amendment][] {% not-enabled /%}.)_
"AssetScale": 2,
"MaximumAmount": "100000000",
"OutstandingAmount": "100",
"TransferFee": 50000,
"TransferFee": 50000,
"MPTokenMetadata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
"OwnerNode": "74"
}
```
{% admonition type="success" name="Tip" %}
By convention, the metadata should decode to JSON data describing what the MPT represents. The [XLS-89d specification](https://github.com/XRPLF/XRPL-Standards/pull/293) defines a recommended format for metadata. For example, the above `MPTokenMetadata` field encodes the sample JSON from the XLS-89d spec, as a UTF-8 string with minimal whitespace.
By convention, the metadata should decode to JSON data describing what the MPT represents. The [XLS-89 specification](https://github.com/XRPLF/XRPL-Standards/tree/master/XLS-0089-multi-purpose-token-metadata-schema) defines a recommended format for metadata. The above `MPTokenMetadata` field encodes the sample JSON from the spec, as a UTF-8 string with minimal whitespace.
{% /admonition %}
## MPTokenIssuance Fields