Make rest api server optional

codex/codex.nim

@@ -184,20 +184,25 @@ proc start*(s: CodexServer) {.async.} =
 
   await s.bootstrapInteractions()
   await s.codexNode.start()
-  s.restServer.start()
+
+  if s.restServer != nil:
+    s.restServer.start()
 
 proc stop*(s: CodexServer) {.async.} =
   notice "Stopping codex node"
 
-  let res = await noCancel allFinishedFailed[void](
+  var futures =
     @[
-      s.restServer.stop(),
       s.codexNode.switch.stop(),
       s.codexNode.stop(),
       s.repoStore.stop(),
       s.maintenance.stop(),
     ]
-  )
+
+  if s.restServer != nil:
+    futures.add(s.restServer.stop())
+
+  let res = await noCancel allFinishedFailed[void](futures)
 
   if res.failure.len > 0:
     error "Failed to stop codex node", failures = res.failure.len
@@ -333,10 +338,13 @@ proc new*(
       taskPool = taskpool,
     )
 
+  var restServer: RestServerRef = nil
+
+  if config.apiBindAddress.isSome:
     restServer = RestServerRef
       .new(
         codexNode.initRestApi(config, repoStore, config.apiCorsAllowedOrigin),
-        initTAddress(config.apiBindAddress, config.apiPort),
+        initTAddress(config.apiBindAddress.get(), config.apiPort),
         bufferSize = (1024 * 64),
         maxRequestBodySize = int.high,
       )

codex/conf.nim

@@ -203,8 +203,10 @@ type
     .}: string
 
     apiBindAddress* {.
-      desc: "The REST API bind address", defaultValue: "127.0.0.1", name: "api-bindaddr"
-    .}: string
+      desc: "The REST API bind address",
+      defaultValue: "127.0.0.1".some,
+      name: "api-bindaddr"
+    .}: Option[string]
 
     apiPort* {.
       desc: "The REST Api port",

library/codex_thread_requests/requests/node_lifecycle_request.nim

@@ -141,6 +141,8 @@ proc createCodex(
     return err("Failed to create codex: unable to get the private key.")
   let pk = privateKey.get()
 
+  conf.apiBindAddress = string.none
+
   let server =
     try:
       CodexServer.new(conf, pk)

tests/integration/codexprocess.nim

@@ -51,7 +51,8 @@ proc ethAccount*(node: CodexProcess): Address =
 
 proc apiUrl*(node: CodexProcess): string =
   let config = CodexConf.load(cmdLine = node.arguments, quitOnFailure = false)
-  return "http://" & config.apiBindAddress & ":" & $config.apiPort & "/api/codex/v1"
+  return
+    "http://" & config.apiBindAddress.get() & ":" & $config.apiPort & "/api/codex/v1"
 
 proc client*(node: CodexProcess): CodexClient =
   if client =? node.client: