Add support for :conway to sync_from on ChainSync (#44)

CHANGELOG.md

@@ -11,6 +11,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 the underlying node is not yet ready or still syncinging with the network, it reports back status and
 attempts a reconnection after 5 seconds.
 
+- Adds support for `:conway` to the `sync_from` option on ChainSync (mainnet only). This allows ChainSync
+clients to sync with the chain starting on the first block of the Conway era.
+
 ## [v0.5.1](https://github.com/wowica/xogmios/releases/tag/v0.5.1) (2024-09-04)
 
 ### Fixed

lib/xogmios.ex

@@ -48,8 +48,8 @@ defmodule Xogmios do
 
   This option accepts either:
 
-  a) An atom from the list: `:origin`, `:byron`,
-  `:shelley`, `:allegra`, `:mary`, `:alonzo`, `:babbage`.
+  a) An atom from the following list of existing eras: `:origin`, `:byron`,
+  `:shelley`, `:allegra`, `:mary`, `:alonzo`, `:babbage`, `:conway`.
 
   For example:
 
@@ -61,7 +61,9 @@ defmodule Xogmios do
   end
   ```
 
-  This will sync with the chain starting from the first block of the Babbage era.
+  This will sync with the chain starting from the first block of the Babbage era. Passing
+  an atom to `sync_from` only works when connecting with **mainnet**. For testnet, `sync_from`
+  must receive a specific point in the chain as described below.
 
   b) A point in the chain, given its `slot` and `id`. For example:
 
@@ -104,7 +106,7 @@ defmodule Xogmios do
   `opts` as keyword lists are passed to the underlying :websocket_client.
 
   The `:include_details` flag can be used to determine the level of details
-  to be returned with each transaction as part of `c:Xogmios.Mempool.handle_transaction/2`.
+  to be returned with each transaction as part of `c:Xogmios.MempoolTxs.handle_transaction/2`.
 
   Setting this option to `false` (default) means only transaction id is returned:
 

lib/xogmios/chain_sync/messages.ex

@@ -118,7 +118,10 @@ defmodule Xogmios.ChainSync.Messages do
     allegra: {16_588_737, "4e9bbbb67e3ae262133d94c3da5bffce7b1127fc436e7433b87668dba34c354a"},
     mary: {23_068_793, "4e9bbbb67e3ae262133d94c3da5bffce7b1127fc436e7433b87668dba34c354a"},
     alonzo: {39_916_796, "e72579ff89dc9ed325b723a33624b596c08141c7bd573ecfff56a1f7229e4d09"},
-    babbage: {72_316_796, "c58a24ba8203e7629422a24d9dc68ce2ed495420bf40d9dab124373655161a20"}
+    babbage: {72_316_796, "c58a24ba8203e7629422a24d9dc68ce2ed495420bf40d9dab124373655161a20"},
+    # Last babbage https://cardanoscan.io/block/10781330
+    # First conway https://cardanoscan.io/block/10781331
+    conway: {133_660_799, "e757d57eb8dc9500a61c60a39fadb63d9be6973ba96ae337fd24453d4d15c343"}
   }
 
   @doc """