feat: add support for justified block id

ChainSafe · May 3, 2023 · b8d1f06 · b8d1f06
1 parent 0ed1cd1
commit b8d1f06
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Showing 2 changed files with 14 additions and 0 deletions.
diff --git a/packages/beacon-node/src/api/impl/beacon/blocks/utils.ts b/packages/beacon-node/src/api/impl/beacon/blocks/utils.ts
@@ -65,6 +65,13 @@ async function resolveBlockIdOrNull(
     };
   }
 
+  if (blockId === "justified") {
+    return {
+      block: await db.blockArchive.get(forkChoice.getJustifiedBlock().slot),
+      executionOptimistic: false,
+    };
+  }
+
   let blockSummary;
   let getBlockByBlockArchive;
 

diff --git a/packages/beacon-node/test/unit/api/impl/beacon/blocks/utils.test.ts b/packages/beacon-node/test/unit/api/impl/beacon/blocks/utils.test.ts
@@ -71,6 +71,13 @@ describe("block api utils", function () {
       expect(dbStub.blockArchive.get).to.be.calledOnceWithExactly(expected);
     });
 
+    it("should resolve justified", async function () {
+      const expected = 0;
+      forkChoiceStub.getJustifiedBlock.returns(expectedSummary);
+      await resolveBlockId(forkChoiceStub, dbStub, "justified").catch(() => {});
+      expect(dbStub.blockArchive.get).to.be.calledOnceWithExactly(expected);
+    });
+
     it("should resolve finalized block root", async function () {
       forkChoiceStub.getBlock.returns(expectedSummary);
       forkChoiceStub.getFinalizedBlock.returns(expectedSummary);