feat(rest): Add HTTP REST API (#727). Amend Debug REST API client

tests/v2/test_rest_debug_api.nim

@@ -1,12 +1,15 @@
+{.used.}
+
 import
   stew/shims/net,
   chronicles,
   testutils/unittests,
-  presto,
+  presto, 
   libp2p/crypto/crypto
 import
   ../../waku/v2/node/wakunode2,
-  ../../waku/v2/node/rest/[server, client, debug_api]
+  ../../waku/v2/node/rest/[server, client, utils],
+  ../../waku/v2/node/rest/debug/debug_api
 
 
 proc testWakuNode(): WakuNode = 
@@ -45,7 +48,9 @@ suite "REST API - Debug":
 
     # Then
     check:
-      response.listenAddresses == @[$node.switch.peerInfo.addrs[^1] & "/p2p/" & $node.switch.peerInfo.peerId]
+      response.status == 200
+      response.contentType == $MIMETYPE_JSON
+      response.data.listenAddresses == @[$node.switch.peerInfo.addrs[^1] & "/p2p/" & $node.switch.peerInfo.peerId]
 
     await restServer.stop()
     await restServer.closeWait()

tests/v2/test_rest_debug_api_serdes.nim

@@ -1,10 +1,13 @@
+{.used.}
+
 import std/typetraits
 import chronicles,
   unittest2,
   stew/[results, byteutils],
   json_serialization
 import 
-  ../../waku/v2/node/rest/[serdes, debug_api]
+  ../../waku/v2/node/rest/serdes,
+  ../../waku/v2/node/rest/debug/api_types
 
 
 suite "Debug API - serialization":

tests/v2/test_rest_serdes.nim

@@ -1,10 +1,13 @@
+{.used.}
+
 import std/typetraits
 import chronicles,
   unittest2,
   stew/[results, byteutils],
   json_serialization
 import 
-  ../../waku/v2/node/rest/[serdes, debug_api]
+  ../../waku/v2/node/rest/serdes,
+  ../../waku/v2/node/rest/debug/api_types
 
 
 # TODO: Decouple this test suite from the `debug_api` module by defining

waku/v2/node/rest/debug/api_types.nim

@@ -1,16 +1,11 @@
 {.push raises: [Defect].}
 
 import
-  stew/byteutils,
   chronicles,
   json_serialization,
-  json_serialization/std/options,
-  presto/[route, client]
-import "."/[serdes, utils],
-  ../wakunode2
-
-logScope: topics = "rest_api_debug"
-
+  json_serialization/std/options
+import ".."/serdes 
+import ../../wakunode2
 
 #### Types
 
@@ -20,6 +15,15 @@ type
     enrUri*: Option[string]
 
 
+#### Type conversion
+
+proc toDebugWakuInfo*(nodeInfo: WakuInfo): DebugWakuInfo = 
+    DebugWakuInfo(
+      listenAddresses: nodeInfo.listenAddresses,
+      enrUri: some(nodeInfo.enrUri)
+    )
+
+
 #### Serialization and deserialization
 
 proc writeValue*(writer: var JsonWriter[RestJson], value: DebugWakuInfo)
@@ -55,42 +59,4 @@ proc readValue*(reader: var JsonReader[RestJson], value: var DebugWakuInfo)
   value = DebugWakuInfo(
     listenAddresses: listenAddresses.get,
     enrUri: enrUri
-  )
-
-
-####  Server request handlers
-
-proc toDebugWakuInfo(nodeInfo: WakuInfo): DebugWakuInfo = 
-    DebugWakuInfo(
-      listenAddresses: nodeInfo.listenAddresses,
-      enrUri: some(nodeInfo.enrUri)
-    )
-
-const ROUTE_DEBUG_INFOV1* = "/debug/v1/info"
-
-proc installDebugInfoV1Handler(router: var RestRouter, node: WakuNode) =
-  router.api(MethodGet, ROUTE_DEBUG_INFOV1) do () -> RestApiResponse:
-    let info = node.info().toDebugWakuInfo()
-    let resp = RestApiResponse.jsonResponse(info, status=Http200)
-    if resp.isErr():
-      debug "An error ocurred while building the json respose", error=resp.error()
-      return RestApiResponse.internalServerError()
-
-    return resp.get()
-
-proc installDebugApiHandlers*(router: var RestRouter, node: WakuNode) =
-  installDebugInfoV1Handler(router, node)
-
-
-#### Client
-
-proc decodeBytes*(t: typedesc[DebugWakuInfo], data: openArray[byte], contentType: string): RestResult[DebugWakuInfo] =
-  if MediaType.init(contentType) != MIMETYPE_JSON:
-    error "Unsupported respose contentType value", contentType = contentType
-    return err("Unsupported response contentType")
-  
-  let decoded = ?decodeFromJsonBytes(DebugWakuInfo, data)
-  return ok(decoded)
-
-# TODO: Check how we can use a constant to set the method endpoint (improve "rest" pragma under nim-presto)
-proc debugInfoV1*(): DebugWakuInfo {.rest, endpoint: "/debug/v1/info", meth: HttpMethod.MethodGet.}
+  )

waku/v2/node/rest/debug/debug_api.nim

@@ -0,0 +1,45 @@
+{.push raises: [Defect].}
+
+import
+  stew/byteutils,
+  chronicles,
+  json_serialization,
+  json_serialization/std/options,
+  presto/[route, client]
+import "."/api_types
+import ".."/[serdes, utils]
+import ../../wakunode2
+
+logScope: topics = "rest_api_debug"
+
+
+####  Server request handlers
+
+const ROUTE_DEBUG_INFOV1* = "/debug/v1/info"
+
+proc installDebugInfoV1Handler(router: var RestRouter, node: WakuNode) =
+  router.api(MethodGet, ROUTE_DEBUG_INFOV1) do () -> RestApiResponse:
+    let info = node.info().toDebugWakuInfo()
+    let resp = RestApiResponse.jsonResponse(info, status=Http200)
+    if resp.isErr():
+      debug "An error occurred while building the json respose", error=resp.error()
+      return RestApiResponse.internalServerError()
+
+    return resp.get()
+
+proc installDebugApiHandlers*(router: var RestRouter, node: WakuNode) =
+  installDebugInfoV1Handler(router, node)
+
+
+#### Client
+
+proc decodeBytes*(t: typedesc[DebugWakuInfo], data: openArray[byte], contentType: string): RestResult[DebugWakuInfo] =
+  if MediaType.init(contentType) != MIMETYPE_JSON:
+    error "Unsupported respose contentType value", contentType = contentType
+    return err("Unsupported response contentType")
+  
+  let decoded = ?decodeFromJsonBytes(DebugWakuInfo, data)
+  return ok(decoded)
+
+# TODO: Check how we can use a constant to set the method endpoint (improve "rest" pragma under nim-presto)
+proc debugInfoV1*(): RestResponse[DebugWakuInfo] {.rest, endpoint: "/debug/v1/info", meth: HttpMethod.MethodGet.}

waku/v2/node/rest/debug/debug_api.yaml

@@ -1,15 +1,23 @@
-openapi: 3.1.0
+openapi: 3.0.3
 info:
-  title: Waku REST API - Debug
+  title: Waku V2 node REST API 
   version: 1.0.0
+  contact:
+    name: VAC Team
+    url: https://forum.vac.dev/
+
+tags:
+  - name: debug
+    description: Debug REST API for WakuV2 node
 
 paths:
   /debug/v1/info:
     get:
       summary: Get node info
       description: Retrieve information about a Waku v2 node.
+      operationId: getNodeInfo
       tags:
-        - Debug
+        - debug
       responses:
         '200':
           description: Information about a Waku v2 node.