Api call to get actor cids works for versions < 16

api/api_full.go

@@ -588,6 +588,8 @@ type FullNode interface {
 	StateNetworkVersion(context.Context, types.TipSetKey) (apitypes.NetworkVersion, error) //perm:read
 	// StateActorCodeCIDs returns the CIDs of all the builtin actors for the given network version
 	StateActorCodeCIDs(context.Context, abinetwork.Version) (map[string]cid.Cid, error) //perm:read
+	// StateActorManifestCID returns the CID of the builtin actors manifest for the given network version
+	StateActorManifestCID(context.Context, abinetwork.Version) (cid.Cid, error) //perm:read
 
 	// StateGetRandomnessFromTickets is used to sample the chain for randomness.
 	StateGetRandomnessFromTickets(ctx context.Context, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte, tsk types.TipSetKey) (abi.Randomness, error) //perm:read

api/v0api/full.go

@@ -607,6 +607,8 @@ type FullNode interface {
 	StateNetworkVersion(context.Context, types.TipSetKey) (apitypes.NetworkVersion, error) //perm:read
 	// StateActorCodeCIDs returns the CIDs of all the builtin actors for the given network version
 	StateActorCodeCIDs(context.Context, abinetwork.Version) (map[string]cid.Cid, error) //perm:read
+	// StateActorManifestCID returns the CID of the builtin actors manifest for the given network version
+	StateActorManifestCID(context.Context, abinetwork.Version) (cid.Cid, error) //perm:read
 
 	// StateGetRandomnessFromTickets is used to sample the chain for randomness.
 	StateGetRandomnessFromTickets(ctx context.Context, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte, tsk types.TipSetKey) (abi.Randomness, error) //perm:read

chain/actors/manifest.go

@@ -122,6 +122,15 @@ func GetActorCodeID(av Version, name string) (cid.Cid, bool) {
 	return c, ok
 }
 
+// GetActorCodeIDs looks up a builtin actor's code CID by actor version.
+func GetActorCodeIDs(av Version) (map[string]cid.Cid, bool) {
+	manifestMx.RLock()
+	defer manifestMx.RUnlock()
+
+	cids, ok := manifests[av]
+	return cids, ok
+}
+
 func GetActorMetaByCode(c cid.Cid) (string, Version, bool) {
 	manifestMx.RLock()
 	defer manifestMx.RUnlock()

cli/state.go

@@ -1927,6 +1927,12 @@ var StateSysActorCIDsCmd = &cli.Command{
 		}
 		fmt.Printf("Actor Version: %d\n", actorVersion)
 
+		manifestCid, ok := actors.GetManifest(actorVersion)
+		if !ok {
+			return xerrors.Errorf("cannot get manifest CID")
+		}
+		fmt.Printf("Manifest CID: %v\n", manifestCid)
+
 		tw := tabwriter.NewWriter(os.Stdout, 2, 4, 2, ' ', 0)
 		_, _ = fmt.Fprintln(tw, "\nActor\tCID\t")
 

documentation/en/api-v0-methods.md

@@ -159,6 +159,7 @@
 * [State](#State)
   * [StateAccountKey](#StateAccountKey)
   * [StateActorCodeCIDs](#StateActorCodeCIDs)
+  * [StateActorManifestCID](#StateActorManifestCID)
   * [StateAllMinerFaults](#StateAllMinerFaults)
   * [StateCall](#StateCall)
   * [StateChangedActors](#StateChangedActors)
@@ -4655,6 +4656,26 @@ Inputs:
 
 Response: `{}`
 
+### StateActorManifestCID
+StateActorManifestCID returns the CID of the builtin actors manifest for the given network version
+
+
+Perms: read
+
+Inputs:
+```json
+[
+  16
+]
+```
+
+Response:
+```json
+{
+  "/": "bafy2bzacea3wsdh6y3a36tb3skempjoxqpuyompjbmfeyf34fi3uy6uue42v4"
+}
+```
+
 ### StateAllMinerFaults
 StateAllMinerFaults returns all non-expired Faults that occur within lookback epochs of the given tipset
 

documentation/en/api-v1-unstable-methods.md

@@ -166,6 +166,7 @@
 * [State](#State)
   * [StateAccountKey](#StateAccountKey)
   * [StateActorCodeCIDs](#StateActorCodeCIDs)
+  * [StateActorManifestCID](#StateActorManifestCID)
   * [StateAllMinerFaults](#StateAllMinerFaults)
   * [StateCall](#StateCall)
   * [StateChangedActors](#StateChangedActors)
@@ -5065,6 +5066,26 @@ Inputs:
 
 Response: `{}`
 
+### StateActorManifestCID
+StateActorManifestCID returns the CID of the builtin actors manifest for the given network version
+
+
+Perms: read
+
+Inputs:
+```json
+[
+  16
+]
+```
+
+Response:
+```json
+{
+  "/": "bafy2bzacea3wsdh6y3a36tb3skempjoxqpuyompjbmfeyf34fi3uy6uue42v4"
+}
+```
+
 ### StateAllMinerFaults
 StateAllMinerFaults returns all non-expired Faults that occur within lookback epochs of the given tipset
 

node/impl/full/state.go

@@ -1468,25 +1468,26 @@ func (a *StateAPI) StateActorCodeCIDs(ctx context.Context, nv network.Version) (
 		return nil, xerrors.Errorf("invalid network version")
 	}
 
-	cids := make(map[string]cid.Cid)
-
-	manifestCid, ok := actors.GetManifest(actorVersion)
+	cids, ok := actors.GetActorCodeIDs(actorVersion)
 	if !ok {
-		return nil, xerrors.Errorf("cannot get manifest CID")
+		return nil, xerrors.Errorf("could not find cids for network version %d, actors version %d", nv, actorVersion)
 	}
 
-	cids["_manifest"] = manifestCid
+	return cids, nil
+}
 
-	var actorKeys = actors.GetBuiltinActorsKeys()
-	for _, name := range actorKeys {
-		actorCID, ok := actors.GetActorCodeID(actorVersion, name)
-		if !ok {
-			return nil, xerrors.Errorf("didn't find actor %v code id for actor version %d", name,
-				actorVersion)
-		}
-		cids[name] = actorCID
+func (a *StateAPI) StateActorManifestCID(ctx context.Context, nv network.Version) (cid.Cid, error) {
+	actorVersion, err := actors.VersionForNetwork(nv)
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("invalid network version")
 	}
-	return cids, nil
+
+	c, ok := actors.GetManifest(actorVersion)
+	if !ok {
+		return cid.Undef, xerrors.Errorf("could not find manifest cid for network version %d, actors version %d", nv, actorVersion)
+	}
+
+	return c, nil
 }
 
 func (a *StateAPI) StateGetRandomnessFromTickets(ctx context.Context, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte, tsk types.TipSetKey) (abi.Randomness, error) {