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feat(rpc): add server_definitions method (#4703)
Add a new RPC / WS call for `server_definitions`, which returns an
SDK-compatible `definitions.json` (binary enum definitions) generated by
the server. This enables clients/libraries to dynamically work with new
fields and features, such as ones that may become available on side
chains. Clients query `server_definitions` on a node from the network
they want to work with, and immediately know how to speak that node's
binary "language", even if new features are added to it in the future
(as long as there are no new serialized types that the software doesn't
know how to serialize/deserialize).
Example:
```js
> {"command": "server_definitions"}
< {
"result": {
"FIELDS": [
[
"Generic",
{
"isSerialized": false,
"isSigningField": false,
"isVLEncoded": false,
"nth": 0,
"type": "Unknown"
}
],
[
"Invalid",
{
"isSerialized": false,
"isSigningField": false,
"isVLEncoded": false,
"nth": -1,
"type": "Unknown"
}
],
[
"ObjectEndMarker",
{
"isSerialized": false,
"isSigningField": true,
"isVLEncoded": false,
"nth": 1,
"type": "STObject"
}
],
...
```
Close #3657
---------
Co-authored-by: Richard Holland <richard.holland@starstone.co.nz>
This commit is contained in:
Mayukha Vadari
@@ -26,6 +26,14 @@ In `api_version: 2`, the `signer_lists` field [will be moved](#modifications-to-
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The `network_id` field was added in the `server_info` response in version 1.5.0 (2019), but it was not returned in [reporting mode](https://xrpl.org/rippled-server-modes.html#reporting-mode).
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## Unreleased
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### Additions
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Additions are intended to be non-breaking (because they are purely additive).
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- `server_definitions`: A new RPC that generates a `definitions.json`-like output that can be used in XRPL libraries.
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## XRP Ledger version 1.12.0
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[Version 1.12.0](https://github.com/XRPLF/rippled/releases/tag/1.12.0) was released on Sep 6, 2023.
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@@ -46,27 +54,27 @@ Additions are intended to be non-breaking (because they are purely additive).
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- `Account`: The issuer of the asset being clawed back. Must also be the sender of the transaction.
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- `Amount`: The amount being clawed back, with the `Amount.issuer` being the token holder's address.
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- Adds [AMM](https://github.com/XRPLF/XRPL-Standards/discussions/78) ([#4294](https://github.com/XRPLF/rippled/pull/4294), [#4626](https://github.com/XRPLF/rippled/pull/4626)) feature:
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- Adds `amm_info` API to retrieve AMM information for a given tokens pair.
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- Adds `AMMCreate` transaction type to create `AMM` instance.
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- Adds `AMMDeposit` transaction type to deposit funds into `AMM` instance.
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- Adds `AMMWithdraw` transaction type to withdraw funds from `AMM` instance.
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- Adds `AMMVote` transaction type to vote for the trading fee of `AMM` instance.
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- Adds `AMMBid` transaction type to bid for the Auction Slot of `AMM` instance.
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- Adds `AMMDelete` transaction type to delete `AMM` instance.
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- Adds `sfAMMID` to `AccountRoot` to indicate that the account is `AMM`'s account. `AMMID` is used to fetch `ltAMM`.
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- Adds `lsfAMMNode` `TrustLine` flag to indicate that one side of the `TrustLine` is `AMM` account.
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- Adds `tfLPToken`, `tfSingleAsset`, `tfTwoAsset`, `tfOneAssetLPToken`, `tfLimitLPToken`, `tfTwoAssetIfEmpty`,
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`tfWithdrawAll`, `tfOneAssetWithdrawAll` which allow a trader to specify different fields combination
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for `AMMDeposit` and `AMMWithdraw` transactions.
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- Adds new transaction result codes:
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- tecUNFUNDED_AMM: insufficient balance to fund AMM. The account does not have funds for liquidity provision.
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- tecAMM_BALANCE: AMM has invalid balance. Calculated balances greater than the current pool balances.
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- tecAMM_FAILED: AMM transaction failed. Fails due to a processing failure.
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- tecAMM_INVALID_TOKENS: AMM invalid LP tokens. Invalid input values, format, or calculated values.
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- tecAMM_EMPTY: AMM is in empty state. Transaction expects AMM in non-empty state (LP tokens > 0).
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- tecAMM_NOT_EMPTY: AMM is not in empty state. Transaction expects AMM in empty state (LP tokens == 0).
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- tecAMM_ACCOUNT: AMM account. Clawback of AMM account.
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- tecINCOMPLETE: Some work was completed, but more submissions required to finish. AMMDelete partially deletes the trustlines.
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- Adds `amm_info` API to retrieve AMM information for a given tokens pair.
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- Adds `AMMCreate` transaction type to create `AMM` instance.
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- Adds `AMMDeposit` transaction type to deposit funds into `AMM` instance.
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- Adds `AMMWithdraw` transaction type to withdraw funds from `AMM` instance.
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- Adds `AMMVote` transaction type to vote for the trading fee of `AMM` instance.
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- Adds `AMMBid` transaction type to bid for the Auction Slot of `AMM` instance.
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- Adds `AMMDelete` transaction type to delete `AMM` instance.
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- Adds `sfAMMID` to `AccountRoot` to indicate that the account is `AMM`'s account. `AMMID` is used to fetch `ltAMM`.
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- Adds `lsfAMMNode` `TrustLine` flag to indicate that one side of the `TrustLine` is `AMM` account.
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- Adds `tfLPToken`, `tfSingleAsset`, `tfTwoAsset`, `tfOneAssetLPToken`, `tfLimitLPToken`, `tfTwoAssetIfEmpty`,
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`tfWithdrawAll`, `tfOneAssetWithdrawAll` which allow a trader to specify different fields combination
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for `AMMDeposit` and `AMMWithdraw` transactions.
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- Adds new transaction result codes:
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- tecUNFUNDED_AMM: insufficient balance to fund AMM. The account does not have funds for liquidity provision.
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- tecAMM_BALANCE: AMM has invalid balance. Calculated balances greater than the current pool balances.
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- tecAMM_FAILED: AMM transaction failed. Fails due to a processing failure.
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- tecAMM_INVALID_TOKENS: AMM invalid LP tokens. Invalid input values, format, or calculated values.
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- tecAMM_EMPTY: AMM is in empty state. Transaction expects AMM in non-empty state (LP tokens > 0).
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- tecAMM_NOT_EMPTY: AMM is not in empty state. Transaction expects AMM in empty state (LP tokens == 0).
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- tecAMM_ACCOUNT: AMM account. Clawback of AMM account.
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- tecINCOMPLETE: Some work was completed, but more submissions required to finish. AMMDelete partially deletes the trustlines.
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## XRP Ledger version 1.11.0
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@@ -118,6 +126,7 @@ Changes below this point are in development.
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At the time of writing, this version is expected to be introduced in `rippled` version 2.0.
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Currently (prior to the release of 2.0), it is available as a "beta" version, meaning it can be enabled with a config setting in `rippled.cfg`:
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```
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[beta_rpc_api]
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1
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