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Omni Core v0.8.2
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@dexX7 dexX7 released this 08 May 10:04
· 174 commits to master since this release
v0.8.2
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dexX7
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Learn about vigilant mode.
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dexX7
GPG key ID: 7675E31CF5719832
Learn about vigilant mode.

v0.8.2 is a minor release and adds new RPCs to interact with the distributed exchange, which can be used to trade any tokens for bitcoins. It also incorporates significant performance improvements for the initial synchronization and upgrading from older versions of Omni Core.

Upgrading from 0.8.1 does not require a rescan and can be done very fast without interruption.

Please report bugs using the issue tracker on GitHub:

https://github.com/OmniLayer/omnicore/issues

Table of contents

Upgrading and downgrading

How to upgrade

If you are running Bitcoin Core or an older version of Omni Core, shut it down. Wait until it has completely shut down, then copy the new version of omnicored, omnicore-cli and omnicore-qt. On Microsoft Windows the setup routine can be used to automate these steps.

When upgrading from an older version than 0.8.0, the database of Omni Core is reconstructed, which can easily consume several hours. During the first startup historical Omni Layer transactions are reprocessed and Omni Core will not be usable for several hours up to more than a day. The progress of the initial scan is reported on the console, the GUI and written to the debug.log. The scan may be interrupted and can be resumed.

Upgrading from 0.8.1 does not require a rescan and can be done very fast without interruption.

Downgrading

Downgrading to an Omni Core version prior to 0.8.0 is not supported.

Compatibility with Bitcoin Core

Omni Core is based on Bitcoin Core 0.18.1 and can be used as replacement for Bitcoin Core. Switching between Omni Core and Bitcoin Core may be supported.

However, it is not advised to upgrade or downgrade to versions other than Bitcoin Core 0.18. When switching to Omni Core, it may be necessary to reprocess Omni Layer transactions.

Improvements

New RPCs for the distributed exchange

Three new RPCs were added to create, update and cancel orders on the distributed exchange:

omni_sendnewdexorder

Creates a new sell offer on the distributed token/BTC exchange.

Arguments:

Name Type Presence Description
fromaddress string required the address to send from
propertyidforsale number required the identifier of the tokens to list for sale
amountforsale string required the amount of tokens to list for sale
amountdesired string required the amount of bitcoins desired
paymentwindow number required a time limit in blocks a buyer has to pay following a successful accepting order
minacceptfee string required a minimum mining fee a buyer has to pay to accept the offer

Result:

"hash"  // (string) the hex-encoded transaction hash

Example:

$ omnicore-cli "omni_sendnewdexorder" "37FaKponF7zqoMLUjEiko25pDiuVH5YLEa" 1 "1.5" "0.75" 50 "0.0001"

omni_sendupdatedexorder

Updates an existing sell offer on the distributed token/BTC exchange.

Arguments:

Name Type Presence Description
fromaddress string required the address to send from
propertyidforsale number required the identifier of the tokens to update
amountforsale string required the new amount of tokens to list for sale
amountdesired string required the new amount of bitcoins desired
paymentwindow number required a new time limit in blocks a buyer has to pay following a successful accepting order
minacceptfee string required a new minimum mining fee a buyer has to pay to accept the offer

Result:

"hash"  // (string) the hex-encoded transaction hash

Example:

$ omnicore-cli "omni_sendupdatedexorder" "37FaKponF7zqoMLUjEiko25pDiuVH5YLEa" 1 "1.0" "1.75" 50 "0.0001"

omni_sendcanceldexorder

Cancels existing sell offer on the distributed token/BTC exchange.

Arguments:

Name Type Presence Description
fromaddress string required the address to send from
propertyidforsale number required the identifier of the tokens to cancel

Result:

"hash"  // (string) the hex-encoded transaction hash

Example:

$ omnicore-cli "omni_sendcanceldexorder" "37FaKponF7zqoMLUjEiko25pDiuVH5YLEa" 1

omni_senddexpay

Create and broadcast payment for an accept offer.

Please note:
Partial purchases are not possible and the whole accepted amount must be paid.

Arguments:

Name Type Presence Description
fromaddress string required the address to send from
toaddress string required the address of the seller
propertyid number required the identifier of the token to purchase
amount string required the Bitcoin amount to send

Result:

"hash"  // (string) the hex-encoded transaction hash

Example:

$ omnicore-cli "omni_senddexpay" \
    "35URq1NN3xL6GeRKUP6vzaQVcxoJiiJKd8" "37FaKponF7zqoMLUjEiko25pDiuVH5YLEa" 1 "15.0"

Other RPC improvements

  • Active orders on the distributed exchange are now properly listed with the omni_getactivedexsells RPC.
  • Parsing of the ecosystem parameter of the omni_sendissuancecrowdsale, omni_sendissuancefixed, omni_sendissuancemanaged, omni_createpayload_issuancefixed, omni_createpayload_issuancecrowdsale, omni_createpayload_issuancemanaged RPCs was fixed.
  • Parsing of the redeemkey parameter of the omni_createrawtx_multisig RPC was fixed.
  • When the node is not synchronized, omni_decodetransaction needs to be provided with all inputs. If they are missing, a proper error message is now shown.
  • The fields issuer, creationtxid, fixedissuance and managedissuance are now included, when using omni_listproperties.
  • Spelling and language improvements.

Reporting vulnerabilities

A security policy was created. To see instructions on how to report a vulnerability for Omni Core the Omni Layer protocol, please see SECURITY.md.

Change log

The following list includes relevant pull requests merged into this release:

- #1100 doc: set ecosystem as numeric
- #1102 Fix parsing of redeemkey of omni_createrawtx_multisig
- #1103 Fix typo: depreciated -> deprecated
- #1114 Split string to maintain property ID
- #1115 Add seperate RPCs for each DEx 1 action
- #1116 Bump version to Omni Core 0.8.2
- #1118 Add error text for omni_decodetransaction, when inputs are missing
- #1119 Add more information when listing tokens
- #1120 Add security policy
- #1121 Corrections to display of DEx info
- #1125 Pay exact amount for indivisible tokens
- #1117 Update release notes for Omni Core 0.8.2

Credits

Thanks to everyone who contributed to this release, especially to Peter Bushnell.

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