From 263f4ed6c263c967f13279c7a9f5629b51c5fc55 Mon Sep 17 00:00:00 2001
From: Jacek Sieka <jacek@status.im>
Date: Wed, 16 Nov 2022 06:54:53 +0100
Subject: [PATCH] Give liveness epoch same "shape" as attester duties (#253)

https://github.com/ethereum/beacon-APIs/pull/131 introduced a new
liveness endpoint - the request is similar to attester duties in that we
query a list of attesters for data pertaining to a particular epoch - as
such, it seems reasonable to keep the two requests similar in terms of
their URL/postdata structure.

Co-authored-by: Paul Harris <paul.harris@consensys.net>
---
 apis/validator/liveness.yaml | 20 +++++++++++---------
 beacon-node-oapi.yaml        |  2 +-
 2 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/apis/validator/liveness.yaml b/apis/validator/liveness.yaml
index 601a7268..1dc92c05 100644
--- a/apis/validator/liveness.yaml
+++ b/apis/validator/liveness.yaml
@@ -12,6 +12,13 @@ post:
     and based upon a subjective view of the network. A beacon node that was recently
     started or suffered a network partition may indicate that a validator is not live
     when it actually is."
+  parameters:
+    - name: epoch
+      description: "The epoch for which liveness is being queried"
+      in: path
+      required: true
+      schema:
+        $ref: "../../beacon-node-oapi.yaml#/components/schemas/Uint64"
   requestBody:
     description: "An array of the validator indices for which to detect liveness."
     required: true
@@ -19,15 +26,10 @@ post:
       application/json:
         schema:
           title: PostLivenessRequestBody
-          type: object
-          properties:
-            epoch:
-              $ref: "../../beacon-node-oapi.yaml#/components/schemas/Uint64"
-            indices:
-              type: array
-              items:
-                $ref: '../../beacon-node-oapi.yaml#/components/schemas/Uint64'
-                minItems: 1
+          type: array
+          items:
+            $ref: '../../beacon-node-oapi.yaml#/components/schemas/Uint64'
+            minItems: 1
   responses:
     "200":
       description: Success response
diff --git a/beacon-node-oapi.yaml b/beacon-node-oapi.yaml
index dcf6b094..fa1e6a22 100644
--- a/beacon-node-oapi.yaml
+++ b/beacon-node-oapi.yaml
@@ -172,7 +172,7 @@ paths:
     $ref: "./apis/validator/prepare_beacon_proposer.yaml"
   /eth/v1/validator/register_validator:
     $ref: "./apis/validator/register_validator.yaml"
-  /eth/v1/validator/liveness:
+  /eth/v1/validator/liveness/{epoch}:
     $ref: "./apis/validator/liveness.yaml"
 
   /eth/v1/events: