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Implement GetBeaconState Endpoint (#5668)
* implement get beacon state * gaz * Merge branch 'master' into implement-debug-state * passing tests * enable with featureconfig * struct oder * Update beacon-chain/rpc/beacon/state.go * Merge refs/heads/master into implement-debug-state * lint resolve * Merge branch 'implement-debug-state' of github.com:prysmaticlabs/prysm into implement-debug-state * tested at runtime * fix build * Merge branch 'master' into implement-debug-state * Merge refs/heads/master into implement-debug-state * Merge refs/heads/master into implement-debug-state * Merge refs/heads/master into implement-debug-state * Merge refs/heads/master into implement-debug-state * Merge refs/heads/master into implement-debug-state * build and fmt * conf * Merge refs/heads/master into implement-debug-state * Merge refs/heads/master into implement-debug-state * Merge refs/heads/master into implement-debug-state * Merge refs/heads/master into implement-debug-state * Merge refs/heads/master into implement-debug-state
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package beacon | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| pbp2p "github.com/prysmaticlabs/prysm/proto/beacon/p2p/v1" | ||
| pbrpc "github.com/prysmaticlabs/prysm/proto/beacon/rpc/v1" | ||
| "github.com/prysmaticlabs/prysm/shared/bytesutil" | ||
| "github.com/prysmaticlabs/prysm/shared/featureconfig" | ||
| "google.golang.org/grpc/codes" | ||
| "google.golang.org/grpc/status" | ||
| ) | ||
|
|
||
| // GetBeaconState retrieves a beacon state | ||
| // from the beacon node by either a slot or block root. | ||
| func (bs *Server) GetBeaconState( | ||
| ctx context.Context, | ||
| req *pbrpc.BeaconStateRequest, | ||
| ) (*pbp2p.BeaconState, error) { | ||
| if !featureconfig.Get().NewStateMgmt { | ||
| return nil, status.Error(codes.FailedPrecondition, "requires --enable-new-state-mgmt to function") | ||
| } | ||
| switch q := req.QueryFilter.(type) { | ||
| case *pbrpc.BeaconStateRequest_Slot: | ||
| st, err := bs.StateGen.StateBySlot(ctx, q.Slot) | ||
| if err != nil { | ||
| return nil, status.Errorf(codes.Internal, "could not compute state by slot: %v", err) | ||
| } | ||
| return st.CloneInnerState(), nil | ||
| case *pbrpc.BeaconStateRequest_BlockRoot: | ||
| st, err := bs.StateGen.StateByRoot(ctx, bytesutil.ToBytes32(q.BlockRoot)) | ||
| if err != nil { | ||
| return nil, status.Errorf(codes.Internal, "could not compute state by block root: %v", err) | ||
| } | ||
| return st.CloneInnerState(), nil | ||
| default: | ||
| return nil, status.Error(codes.InvalidArgument, "need to specify either a block root or slot to request state") | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package beacon | ||
|
|
||
| import ( | ||
| "context" | ||
| "testing" | ||
|
|
||
| "github.com/gogo/protobuf/proto" | ||
| ethpb "github.com/prysmaticlabs/ethereumapis/eth/v1alpha1" | ||
| "github.com/prysmaticlabs/go-ssz" | ||
| "github.com/prysmaticlabs/prysm/beacon-chain/cache" | ||
| dbTest "github.com/prysmaticlabs/prysm/beacon-chain/db/testing" | ||
| "github.com/prysmaticlabs/prysm/beacon-chain/state/stategen" | ||
| pbrpc "github.com/prysmaticlabs/prysm/proto/beacon/rpc/v1" | ||
| "github.com/prysmaticlabs/prysm/shared/featureconfig" | ||
| "github.com/prysmaticlabs/prysm/shared/testutil" | ||
| ) | ||
|
|
||
| func TestServer_GetBeaconState(t *testing.T) { | ||
| resetCfg := featureconfig.InitWithReset(&featureconfig.Flags{NewStateMgmt: true}) | ||
| defer resetCfg() | ||
|
|
||
| db := dbTest.SetupDB(t) | ||
| defer dbTest.TeardownDB(t, db) | ||
|
|
||
| ctx := context.Background() | ||
| st := testutil.NewBeaconState() | ||
| slot := uint64(100) | ||
| if err := st.SetSlot(slot); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| b := ðpb.SignedBeaconBlock{Block: ðpb.BeaconBlock{ | ||
| Slot: slot, | ||
| }} | ||
| if err := db.SaveBlock(ctx, b); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| gRoot, err := ssz.HashTreeRoot(b.Block) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| gen := stategen.New(db, cache.NewStateSummaryCache()) | ||
| if err := gen.SaveState(ctx, gRoot, st); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| if err := db.SaveState(ctx, st, gRoot); err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| bs := &Server{ | ||
| BeaconDB: db, | ||
| StateGen: gen, | ||
| } | ||
| if _, err := bs.GetBeaconState(ctx, &pbrpc.BeaconStateRequest{}); err == nil { | ||
| t.Errorf("Expected error without a query filter, received nil") | ||
| } | ||
| req := &pbrpc.BeaconStateRequest{ | ||
| QueryFilter: &pbrpc.BeaconStateRequest_BlockRoot{ | ||
| BlockRoot: gRoot[:], | ||
| }, | ||
| } | ||
| res, err := bs.GetBeaconState(ctx, req) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| wanted := st.CloneInnerState() | ||
| if !proto.Equal(wanted, res) { | ||
| t.Errorf("Wanted %v, received %v", wanted, res) | ||
| } | ||
| req = &pbrpc.BeaconStateRequest{ | ||
| QueryFilter: &pbrpc.BeaconStateRequest_Slot{ | ||
| Slot: slot, | ||
| }, | ||
| } | ||
| res, err = bs.GetBeaconState(ctx, req) | ||
| if err != nil { | ||
| t.Fatal(err) | ||
| } | ||
| if !proto.Equal(wanted, res) { | ||
| t.Errorf("Wanted %v, received %v", wanted, res) | ||
| } | ||
| } |
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