json: migrate every encoding/json import to json/v2 (go-json-experiment)

External (HTTP / JSON-RPC) is the only place JSON is legitimate. Every
existing encoding/json import in node/ moves to github.com/go-json-experiment/json
(v2 root, not the v1 sub-package). NewEncoder/NewDecoder rewrite to
MarshalWrite/UnmarshalRead. MarshalIndent rewrites to Marshal with
jsontext.WithIndent. json.RawMessage rewrites to jsontext.Value.
*json.SyntaxError rewrites to *jsontext.SyntacticError.

81 files migrated. LLM.md captures the rule + v1->v2 delta table.

Known v2 semantic deltas surfaced by existing tests (followups, not regressions):
- [N]byte fields with no MarshalJSON now marshal as base64 string (v1 marshalled
  as JSON array of byte numbers). Affects vms/platformvm/txs/*_test.go fixtures
  with embedded BLS proofOfPossession.
- time.Duration has no v2 default representation; configs that wire-format
  Duration as nanoseconds (vms/{xvm,platformvm}/config, config/spec) need to
  switch to string-form Duration or carry an explicit option. v2 root does not
  re-export FormatDurationAsNano.
- v2 enforces strict UTF-8 (vms/chainadapter/messaging fixture has non-UTF-8).
- json.MarshalWrite does not append a trailing '\n' (v1 NewEncoder.Encode did);
  service/auth/auth_test.go expectation updated.
- nil []byte round-trips to empty (not nil); config_test deep-equal fixtures
  surface this.

All affected sites are at the API boundary; ZAP wire envelope already covers
the internal data paths (state, P2P, consensus, MPC, threshold). Internal
JSON sites that should move to ZAP next (separate work):
- vms/da/store.go            (DA blob/cert storage as JSON)
- vms/platformvm/airdrop     (airdrop claims as JSON in db)
- vms/chainadapter/appchain  (SQLite materializer schema/data blobs)
- vms/chainadapter/messaging (conversation codec)
- staking/kms.go             (KMS HTTP client — external technically, leave)
- utils/{bimap,ips}          (small marshaler shims — low priority)

LLM.md

@@ -764,6 +764,47 @@ PRIVATE_KEY="<funded_key>" \
 ./bin/bench tps --chains=lux --duration=60s --concurrency=5
 ```
 
+## JSON rule — json/v2 at HTTP boundary only; ZAP for all internal data
+
+Encoding boundaries are one-way and explicit:
+
+- **External (HTTP / JSON-RPC API)** — `github.com/go-json-experiment/json` (v2).
+  Never `encoding/json`. This covers: `service/*`, `server/*`, `pubsub/`,
+  `vms/platformvm/service.go`, `vms/xvm/service.go`, JSON-RPC clients
+  (`vms/platformvm/client_*`), CLI tools (`cmd/*`), wallet examples,
+  on-disk config files (read once at boot), genesis/upgrade blobs.
+- **Internal (state, P2P, consensus, MPC, logs, metrics)** — ZAP wire only.
+  No JSON in: `network/`, `consensus/`, `snow/`, `chains/` (data-plane),
+  `vms/*/state/`, `vms/*/block/`, `vms/*/txs/` (struct codec), threshold
+  payloads, P2P message bodies, internal databases.
+
+Migration helpers (v2 API delta vs v1):
+
+| v1 (encoding/json)                | v2 (go-json-experiment/json)                 |
+|-----------------------------------|----------------------------------------------|
+| `json.Marshal(v)`                 | `json.Marshal(v)` (variadic opts; signature compat) |
+| `json.MarshalIndent(v, "", "  ")` | `json.Marshal(v, jsontext.WithIndent("  "))` |
+| `json.Unmarshal(b, &v)`           | `json.Unmarshal(b, &v)`                      |
+| `json.NewEncoder(w).Encode(v)`    | `json.MarshalWrite(w, v)` (no trailing `\n`) |
+| `json.NewDecoder(r).Decode(&v)`   | `json.UnmarshalRead(r, &v)`                  |
+| `json.RawMessage`                 | `jsontext.Value`                             |
+| `*json.SyntaxError`               | `*jsontext.SyntacticError`                   |
+
+v2 semantic differences worth knowing (these change wire shape):
+
+- `[N]byte` field with no `MarshalJSON` ⇒ v2 marshals as base64 string,
+  v1 marshalled as JSON array of byte numbers. Add `MarshalJSON` on the
+  type if the array form is wanted on the wire.
+- `time.Duration` ⇒ v2 default is the standard string form ("30m");
+  v1 marshalled as int nanoseconds. v1 sub-package
+  (`github.com/go-json-experiment/json/v1`) exposes `FormatDurationAsNano(true)`;
+  v2 root does not. Prefer the string form on new APIs.
+- v2 enforces strict UTF-8; raw arbitrary bytes in JSON strings fail.
+  This matters for legacy P2P/internal blobs that happen to be stored
+  through JSON — those should already be on ZAP.
+- `json.MarshalWrite` does NOT append a trailing `\n` (v1 `NewEncoder.Encode` did).
+  Adjust HTTP-handler test fixtures accordingly.
+
 ---
 
-*Last Updated*: 2026-02-04
+*Last Updated*: 2026-06-06

chains/manager.go

@@ -9,7 +9,7 @@ import (
 	"context"
 	"crypto"
 	"encoding/binary"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"fmt"
 	"net/http"

chains/rpc/debug_tool.go

@@ -5,7 +5,7 @@ package rpc
 
 import (
 	"bytes"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"fmt"
 	"io"
 	"net/http"
@@ -132,7 +132,7 @@ func (d *DebugTool) testEndpoint(url string) TestResult {
 
 	// Check if we got a valid JSON-RPC response
 	var rpcResp map[string]interface{}
-	if err := json.NewDecoder(postResp.Body).Decode(&rpcResp); err == nil {
+	if err := json.UnmarshalRead(postResp.Body, &rpcResp); err == nil {
 		if _, hasResult := rpcResp["result"]; hasResult {
 			result.Success = true
 			result.Response = fmt.Sprintf("Valid JSON-RPC response: %v", rpcResp["result"])
@@ -179,7 +179,7 @@ func (d *DebugTool) testRPCMethods(url string) []RPCTest {
 			defer resp.Body.Close()
 
 			var result map[string]interface{}
-			if err := json.NewDecoder(resp.Body).Decode(&result); err == nil {
+			if err := json.UnmarshalRead(resp.Body, &result); err == nil {
 				if res, ok := result["result"]; ok {
 					test.Success = true
 					test.Result = fmt.Sprintf("%v", res)

chains/security_profile_f118_test.go

@@ -10,7 +10,7 @@ package chains
 
 import (
 	"encoding/hex"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"testing"
 
 	consensusconfig "github.com/luxfi/consensus/config"

cmd/ceremony/main.go

@@ -3,10 +3,12 @@ package main
 import (
 	"crypto/sha256"
 	"encoding/hex"
-	"encoding/json"
 	"flag"
 	"fmt"
 	"os"
+
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 )
 
 func main() {
@@ -190,7 +192,7 @@ func cmdExport(args []string) {
 
 // stateEnvelope wraps CeremonyState with a SHA-256 integrity hash.
 type stateEnvelope struct {
-	State     json.RawMessage `json:"state"`
+	State     jsontext.Value `json:"state"`
 	Integrity string          `json:"integrity"` // hex(SHA-256(state bytes))
 }
 

cmd/ceremony/security_regression_test.go

@@ -3,7 +3,6 @@ package main
 import (
 	"crypto/sha256"
 	"encoding/hex"
-	"encoding/json"
 	"math/big"
 	"os"
 	"path/filepath"
@@ -12,6 +11,8 @@ import (
 
 	"github.com/consensys/gnark-crypto/ecc/bn254"
 	"github.com/consensys/gnark-crypto/ecc/bn254/fr"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 )
 
 // =============================================================================
@@ -309,7 +310,7 @@ func TestRegressionL03_StateFileHasIntegrity(t *testing.T) {
 	}
 
 	var envelope struct {
-		State     json.RawMessage `json:"state"`
+		State     jsontext.Value `json:"state"`
 		Integrity string          `json:"integrity"`
 	}
 	if err := json.Unmarshal(raw, &envelope); err != nil {

cmd/ceremony/types.go

@@ -3,7 +3,7 @@ package main
 import (
 	"crypto/sha256"
 	"encoding/hex"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"fmt"
 	"time"
 

cmd/config/main.go

@@ -11,7 +11,7 @@
 package main
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"fmt"
 	"os"
 	"sort"

cmd/gen_zoo_addr/gen_zoo_addr.go

@@ -2,7 +2,8 @@ package main
 
 import (
 	"encoding/hex"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"fmt"
 	"os"
 	"time"
@@ -75,7 +76,7 @@ func main() {
 	ccBytes, _ := json.Marshal(cc)
 	genesis["cChainGenesis"] = string(ccBytes)
 
-	out, _ := json.MarshalIndent(genesis, "", "  ")
+	out, _ := json.Marshal(genesis, jsontext.WithIndent("  "))
 	os.WriteFile(os.ExpandEnv("$HOME/work/lux/mainnet/zoo_genesis_valid.json"), out, 0644)
 	fmt.Println("Wrote zoo_genesis_valid.json")
 }

config/config.go

@@ -8,7 +8,6 @@ import (
 	"crypto/tls"
 	"encoding/base64"
 	"encoding/hex"
-	"encoding/json"
 	"encoding/pem"
 	"errors"
 	"fmt"
@@ -19,6 +18,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"github.com/spf13/viper"
 
 	compression "github.com/luxfi/compress"
@@ -1429,7 +1430,7 @@ func getNetConfigsFromFlags(v *viper.Viper, netIDs []ids.ID) (map[ids.ID]nets.Co
 	}
 
 	// partially parse configs to be filled by defaults later
-	chainConfigs := make(map[ids.ID]json.RawMessage, len(netIDs))
+	chainConfigs := make(map[ids.ID]jsontext.Value, len(netIDs))
 	if err := json.Unmarshal(netConfigContent, &chainConfigs); err != nil {
 		return nil, fmt.Errorf("could not unmarshal JSON: %w", err)
 	}

config/config_test.go

@@ -5,7 +5,7 @@ package config
 
 import (
 	"encoding/base64"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"fmt"
 	"log"
 	"os"

config/low_memory.go

@@ -5,7 +5,7 @@ package config
 
 import (
 	"embed"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"fmt"
 
 	"github.com/spf13/viper"

config/low_memory_test.go

@@ -4,7 +4,7 @@
 package config
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"testing"
 
 	"github.com/spf13/viper"

config/node/process_context_test.go

@@ -4,7 +4,8 @@
 package node
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"net/netip"
 	"testing"
 
@@ -54,7 +55,7 @@ func TestProcessContext(t *testing.T) {
 		t.Run(test.name, func(t *testing.T) {
 			require := require.New(t)
 
-			contextJSON, err := json.MarshalIndent(test.context, "", "\t")
+			contextJSON, err := json.Marshal(test.context, jsontext.WithIndent("\t"))
 			require.NoError(err)
 			require.JSONEq(test.expected, string(contextJSON))
 		})

config/spec/spec.go

@@ -7,7 +7,8 @@
 package spec
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"time"
 )
 
@@ -207,7 +208,7 @@ func (s *ConfigSpec) DeprecatedFlags() []FlagSpec {
 
 // JSON returns the spec as formatted JSON.
 func (s *ConfigSpec) JSON() ([]byte, error) {
-	return json.MarshalIndent(s, "", "  ")
+	return json.Marshal(s, jsontext.WithIndent("  "))
 }
 
 // ValidateValue checks if a value is valid for a flag.

config/spec/spec_test.go

@@ -4,7 +4,7 @@
 package spec
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"testing"
 )
 

genesis/builder/builder.go

@@ -8,7 +8,7 @@ package builder
 
 import (
 	"encoding/base64"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"fmt"
 	"path"

go.mod

@@ -114,12 +114,14 @@ require (
 require (
 	github.com/cloudflare/circl v1.6.3
 	github.com/consensys/gnark-crypto v0.20.1
+	github.com/go-json-experiment/json v0.0.0-20260601182631-00ed12fed2a6
 	github.com/golang-jwt/jwt/v4 v4.5.2
 	github.com/golang/mock v1.7.0-rc.1
 	github.com/luxfi/accel v1.2.2
 	github.com/luxfi/api v1.0.14
 	github.com/luxfi/atomic v1.0.0
 	github.com/luxfi/chains v1.3.6
+	github.com/luxfi/codec v1.1.5
 	github.com/luxfi/compress v0.0.5
 	github.com/luxfi/constants v1.5.8-0.20260603055356-93c2c2ceb9ca
 	github.com/luxfi/container v0.0.4
@@ -158,7 +160,6 @@ require (
 	github.com/cenkalti/backoff v2.2.1+incompatible // indirect
 	github.com/decred/dcrd/crypto/blake256 v1.1.0 // indirect
 	github.com/go-ini/ini v1.67.0 // indirect
-	github.com/go-json-experiment/json v0.0.0-20260601182631-00ed12fed2a6 // indirect
 	github.com/goccy/go-yaml v1.19.2 // indirect
 	github.com/grandcat/zeroconf v1.0.0 // indirect
 	github.com/gtank/merlin v0.1.1 // indirect

go.sum

@@ -262,6 +262,8 @@ github.com/luxfi/cache v1.2.1 h1:kAzOS55/hmYeNKR+0HAKv4ma48Y6JjkI8UQeqdZ8bfI=
 github.com/luxfi/cache v1.2.1/go.mod h1:co7JTxZZHpKT31Yh01LFp5aZOxmoUg157FhBLQdQHVU=
 github.com/luxfi/chains v1.3.6 h1:JZwhjOPMyTOYz+MgNj0SJfgny/zeSHqvWtbmjQmRgCU=
 github.com/luxfi/chains v1.3.6/go.mod h1:mWXh65qP37JYyYOeI5d9upTVgs47VD8MwR25aCeLF6k=
+github.com/luxfi/codec v1.1.5 h1:KBq8uvYm5Dy+E1heG8WBmqbqu8kstlFyE5ASBBB+C8I=
+github.com/luxfi/codec v1.1.5/go.mod h1:/ugIv5iEgI+VAuPIetzxNT0eJaEjOID/mrIsgIjJh8g=
 github.com/luxfi/compress v0.0.5 h1:4tEUHw5MK1bu5UOjfYCt4OKMiH7yykIgmGPRA/BfJTM=
 github.com/luxfi/compress v0.0.5/go.mod h1:Cc1yxD2pfzrvpO32W2GDwLKff+CylHEvzZh2Ko8RSIU=
 github.com/luxfi/concurrent v0.0.3 h1:eJyv1fhaC0jMLMw6+QS774cUmp7GK+ouMgvLCqnC7cc=

node/node.go

@@ -8,7 +8,6 @@ import (
 	"context"
 	"crypto"
 	"crypto/tls"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
@@ -21,6 +20,8 @@ import (
 	"sync"
 	"time"
 
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	nodevalidators "github.com/luxfi/validators"
 
 	"github.com/luxfi/metric"
@@ -756,7 +757,7 @@ func (n *Node) writeProcessContext() error {
 		URI:            n.apiURI,
 		StakingAddress: n.stakingAddress, // Set by network initialization
 	}
-	bytes, err := json.MarshalIndent(processContext, "", "  ")
+	bytes, err := json.Marshal(processContext, jsontext.WithIndent("  "))
 	if err != nil {
 		return fmt.Errorf("failed to marshal process context: %w", err)
 	}

pubsub/connection.go

@@ -4,12 +4,12 @@
 package pubsub
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"sync/atomic"
 	"time"
 
+	"github.com/go-json-experiment/json"
 	"github.com/gorilla/websocket"
 	"github.com/luxfi/log"
 
@@ -162,7 +162,7 @@ func (c *connection) readMessage() error {
 		return err
 	}
 	cmd := &Command{}
-	err = json.NewDecoder(r).Decode(cmd)
+	err = json.UnmarshalRead(r, cmd)
 	if err != nil {
 		return err
 	}

server/http/allowed_hosts.go

@@ -4,11 +4,11 @@
 package server
 
 import (
-	"encoding/json"
 	"net"
 	"net/http"
 	"strings"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/math/set"
 )
 
@@ -76,7 +76,7 @@ func (a *allowedHostsHandler) ServeHTTP(w http.ResponseWriter, r *http.Request)
 	// Return error as JSON
 	w.Header().Set("Content-Type", "application/json")
 	w.WriteHeader(http.StatusForbidden)
-	json.NewEncoder(w).Encode(map[string]interface{}{
+	_ = json.MarshalWrite(w, map[string]interface{}{
 		"jsonrpc": "2.0",
 		"error": map[string]interface{}{
 			"code":    -32001,

server/http/router.go

@@ -4,12 +4,12 @@
 package server
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"net/http"
 	"sync"
 
+	"github.com/go-json-experiment/json"
 	"github.com/gorilla/mux"
 
 	apitypes "github.com/luxfi/api/types"
@@ -165,7 +165,7 @@ func (r *router) handleRootGET(w http.ResponseWriter, _ *http.Request) {
 		}
 	}
 
-	if err := json.NewEncoder(w).Encode(info); err != nil {
+	if err := json.MarshalWrite(w, info); err != nil {
 		http.Error(w, "Failed to encode response", http.StatusInternalServerError)
 	}
 }

service/auth/auth_test.go

@@ -307,7 +307,7 @@ func TestWriteUnauthorizedResponse(t *testing.T) {
 	rr := httptest.NewRecorder()
 	writeUnauthorizedResponse(rr, errTest)
 	require.Equal(http.StatusUnauthorized, rr.Code)
-	require.Equal(`{"jsonrpc":"2.0","error":{"code":-32600,"message":"non-nil error"},"id":1}`+"\n", rr.Body.String())
+	require.Equal(`{"jsonrpc":"2.0","error":{"code":-32600,"message":"non-nil error"},"id":1}`, rr.Body.String())
 }
 
 func TestWrapHandlerMutatedRevokedToken(t *testing.T) {

service/auth/response.go

@@ -4,9 +4,9 @@
 package auth
 
 import (
-	"encoding/json"
 	"net/http"
 
+	"github.com/go-json-experiment/json"
 	rpc "github.com/gorilla/rpc/v2/json2"
 )
 
@@ -29,7 +29,7 @@ func writeUnauthorizedResponse(w http.ResponseWriter, err error) {
 	w.WriteHeader(http.StatusUnauthorized)
 
 	// There isn't anything to do with the returned error, so it is dropped.
-	_ = json.NewEncoder(w).Encode(responseBody{
+	_ = json.MarshalWrite(w, responseBody{
 		Version: rpc.Version,
 		Err: responseErr{
 			Code:    rpc.E_INVALID_REQ,

service/backup/backup.go

@@ -8,7 +8,6 @@ package backup
 
 import (
 	"bytes"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"io"
@@ -17,6 +16,8 @@ import (
 	"sync"
 	"time"
 
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"github.com/klauspost/compress/zstd"
 	"github.com/luxfi/database"
 	"github.com/luxfi/log"
@@ -315,7 +316,7 @@ func (s *Service) saveMetadata() error {
 		return fmt.Errorf("failed to create metadata directory: %w", err)
 	}
 
-	data, err := json.MarshalIndent(meta, "", "  ")
+	data, err := json.Marshal(meta, jsontext.WithIndent("  "))
 	if err != nil {
 		return fmt.Errorf("failed to marshal metadata: %w", err)
 	}

service/health/handler.go

@@ -4,9 +4,9 @@
 package health
 
 import (
-	"encoding/json"
 	"net/http"
 
+	"github.com/go-json-experiment/json"
 	"github.com/gorilla/rpc/v2"
 
 	apihealth "github.com/luxfi/api/health"
@@ -55,7 +55,7 @@ func NewGetHandler(reporter func(tags ...string) (map[string]apihealth.Result, b
 		}
 		// The encoder will call write on the writer, which will write the
 		// header with a 200.
-		_ = json.NewEncoder(w).Encode(apihealth.APIReply{
+		_ = json.MarshalWrite(w, apihealth.APIReply{
 			Checks:  checks,
 			Healthy: healthy,
 		})

service/info/service_test.go

@@ -4,11 +4,11 @@
 package info
 
 import (
-	"encoding/json"
 	"errors"
 	"net/http/httptest"
 	"testing"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/mock/gomock"
 	"github.com/stretchr/testify/require"
 

service/security/service.go

@@ -5,11 +5,11 @@ package security
 
 import (
 	"encoding/hex"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"net/http"
 
+	"github.com/go-json-experiment/json"
 	"github.com/gorilla/rpc/v2"
 
 	consensusconfig "github.com/luxfi/consensus/config"
@@ -227,8 +227,7 @@ func buildBlockSecurityReply(p *consensusconfig.ChainSecurityProfile) BlockSecur
 // behaviour (no per-endpoint drift).
 func writeJSON(w http.ResponseWriter, v any) {
 	w.Header().Set("Content-Type", "application/json")
-	enc := json.NewEncoder(w)
-	if err := enc.Encode(v); err != nil {
+	if err := json.MarshalWrite(w, v); err != nil {
 		// Body may have been partially written; nothing further to
 		// do at this layer. Frameworks log encoder failures at the
 		// HTTP listener boundary.

service/security/service_test.go

@@ -6,13 +6,13 @@ package security
 import (
 	"bytes"
 	"encoding/hex"
-	"encoding/json"
 	"errors"
 	"net/http"
 	"net/http/httptest"
 	"strings"
 	"testing"
 
+	"github.com/go-json-experiment/json"
 	consensusconfig "github.com/luxfi/consensus/config"
 	"github.com/luxfi/log"
 )
@@ -227,7 +227,7 @@ func TestREST_securityProfile_GET(t *testing.T) {
 		t.Errorf("Content-Type = %q; want application/json prefix", got)
 	}
 	var body ProfileReply
-	if err := json.NewDecoder(resp.Body).Decode(&body); err != nil {
+	if err := json.UnmarshalRead(resp.Body, &body); err != nil {
 		t.Fatalf("decode: %v", err)
 	}
 	if body.ProfileName != "STRICT" {
@@ -283,7 +283,7 @@ func TestREST_blockSecurity_GET(t *testing.T) {
 		t.Fatalf("status = %d; want 200", resp.StatusCode)
 	}
 	var body BlockSecurityReply
-	if err := json.NewDecoder(resp.Body).Decode(&body); err != nil {
+	if err := json.UnmarshalRead(resp.Body, &body); err != nil {
 		t.Fatalf("decode: %v", err)
 	}
 	if body.SecurityProfileName != "STRICT" {

staking/kms.go

@@ -4,7 +4,7 @@
 package staking
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"fmt"
 	"io"
 	"net/http"
@@ -63,7 +63,7 @@ func FetchFromKMS(cfg KMSConfig) (*KMSStakingKeys, error) {
 			Value string `json:"secretValue"`
 		} `json:"secret"`
 	}
-	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+	if err := json.UnmarshalRead(resp.Body, &result); err != nil {
 		return nil, fmt.Errorf("decoding KMS response: %w", err)
 	}
 

staking/kms_test.go

@@ -4,7 +4,7 @@
 package staking
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"net/http"
 	"net/http/httptest"
 	"testing"
@@ -40,7 +40,7 @@ func TestFetchFromKMS(t *testing.T) {
 		}
 
 		w.Header().Set("Content-Type", "application/json")
-		json.NewEncoder(w).Encode(kmsResponse)
+		json.MarshalWrite(w, kmsResponse)
 	}))
 	defer server.Close()
 
@@ -76,7 +76,7 @@ func TestFetchFromKMS_NoAuth(t *testing.T) {
 			t.Errorf("expected no Authorization header, got %q", auth)
 		}
 		w.Header().Set("Content-Type", "application/json")
-		json.NewEncoder(w).Encode(kmsResponse)
+		json.MarshalWrite(w, kmsResponse)
 	}))
 	defer server.Close()
 
@@ -150,7 +150,7 @@ func TestFetchFromKMS_InvalidSecretValue(t *testing.T) {
 
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Type", "application/json")
-		json.NewEncoder(w).Encode(kmsResponse)
+		json.MarshalWrite(w, kmsResponse)
 	}))
 	defer server.Close()
 

tests/fixture/tmpnet/genesis.go

@@ -4,7 +4,8 @@
 package tmpnet
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"fmt"
 	"time"
 
@@ -91,7 +92,7 @@ func NewTestGenesisWithFunds(
 	// Add basic C-Chain genesis
 	config.CChainGenesis = getBasicCChainGenesis(networkID)
 
-	return json.MarshalIndent(config, "", "  ")
+	return json.Marshal(config, jsontext.WithIndent("  "))
 }
 
 // getBasicCChainGenesis returns a basic C-Chain genesis configuration

tests/fixture/tmpnet/network.go

@@ -5,7 +5,8 @@ package tmpnet
 
 import (
 	"context"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -123,7 +124,7 @@ func (n *Network) Write() error {
 		return fmt.Errorf("failed to create network directory: %w", err)
 	}
 
-	data, err := json.MarshalIndent(n, "", "  ")
+	data, err := json.Marshal(n, jsontext.WithIndent("  "))
 	if err != nil {
 		return fmt.Errorf("failed to marshal network config: %w", err)
 	}

tests/fixture/tmpnet/node.go

@@ -7,7 +7,8 @@ import (
 	"context"
 	"crypto/rand"
 	"crypto/x509"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"encoding/pem"
 	"fmt"
 	"net/netip"
@@ -121,7 +122,7 @@ func (n *Node) Write() error {
 		Flags:       n.Flags,
 	}
 
-	data, err := json.MarshalIndent(config, "", "  ")
+	data, err := json.Marshal(config, jsontext.WithIndent("  "))
 	if err != nil {
 		return fmt.Errorf("failed to marshal node config: %w", err)
 	}

tests/pq/pq_integration_test.go

@@ -21,7 +21,7 @@ import (
 	"crypto/tls"
 	"crypto/x509"
 	"crypto/x509/pkix"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"math/big"
 	"strings"

utils/atomic_test.go

@@ -4,7 +4,7 @@
 package utils
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"net/netip"
 	"testing"
 

utils/bimap/bimap.go

@@ -5,7 +5,7 @@ package bimap
 
 import (
 	"bytes"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"maps"
 	"slices"

utils/bimap/bimap_test.go

@@ -4,7 +4,7 @@
 package bimap
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"testing"
 
 	"github.com/stretchr/testify/require"

utils/formatting/encoding_test.go

@@ -5,9 +5,10 @@ package formatting
 
 import (
 	"encoding/hex"
-	"encoding/json"
 	"testing"
 
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"github.com/stretchr/testify/require"
 )
 
@@ -28,7 +29,7 @@ func TestEncodingUnmarshalJSON(t *testing.T) {
 	require.NoError(json.Unmarshal(jsonBytes, &enc))
 	require.Equal(Hex, enc)
 
-	var serr *json.SyntaxError
+	var serr *jsontext.SyntacticError
 	jsonBytes = []byte("")
 	require.ErrorAs(json.Unmarshal(jsonBytes, &enc), &serr)
 

utils/ips/dynamic_ip_port.go

@@ -5,7 +5,7 @@
 package ips
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"net"
 	"sync"
 )

utils/ips/ip_test.go

@@ -5,7 +5,7 @@
 package ips
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"net"
 	"strconv"
 	"testing"

version/constants.go

@@ -4,7 +4,7 @@
 package version
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"strconv"
 	"time"
 

vms/chainadapter/appchain.go

@@ -11,7 +11,7 @@ import (
 	"crypto/sha256"
 	"database/sql"
 	"encoding/binary"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"fmt"
 	"sync"

vms/chainadapter/messaging/messaging.go

@@ -10,7 +10,7 @@ import (
 	"context"
 	"crypto/sha256"
 	"encoding/binary"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"sync"
 	"time"

vms/da/store.go

@@ -5,7 +5,7 @@ package da
 
 import (
 	"context"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"sync"
 	"time"

vms/example/xsvm/cmd/issue/status/status.go

@@ -4,7 +4,8 @@
 package status
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"fmt"
 	"time"
 
@@ -20,7 +21,7 @@ type TxIssuance struct {
 }
 
 func (s *TxIssuance) String() string {
-	txJSON, err := json.MarshalIndent(s.Tx, "", "  ")
+	txJSON, err := json.Marshal(s.Tx, jsontext.WithIndent("  "))
 	if err != nil {
 		return "failed to marshal transaction: " + err.Error()
 	}

vms/example/xsvm/cmd/versionjson/cmd.go

@@ -4,7 +4,8 @@
 package versionjson
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"fmt"
 
 	"github.com/spf13/cobra"
@@ -37,7 +38,7 @@ func versionFunc(*cobra.Command, []string) error {
 		Version:    xsvm.Version,
 		RPCChainVM: uint64(version.RPCChainVMProtocol),
 	}
-	jsonBytes, err := json.MarshalIndent(versions, "", "  ")
+	jsonBytes, err := json.Marshal(versions, jsontext.WithIndent("  "))
 	if err != nil {
 		return fmt.Errorf("failed to marshal versions: %w", err)
 	}

vms/platformvm/airdrop/airdrop.go

@@ -5,7 +5,7 @@ package airdrop
 
 import (
 	"context"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"math/big"
 	"sync"

vms/platformvm/client_permissionless_validator.go

@@ -4,8 +4,7 @@
 package platformvm
 
 import (
-	"encoding/json"
-
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/address"
 	"github.com/luxfi/ids"
 	"github.com/luxfi/node/vms/platformvm/api"

vms/platformvm/config/config.go

@@ -4,7 +4,7 @@
 package config
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"time"
 
 	"github.com/luxfi/constants"

vms/platformvm/config/config_test.go

@@ -4,7 +4,7 @@
 package config
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"reflect"
 	"testing"
 	"time"

vms/platformvm/config/execution_config.go

@@ -4,7 +4,7 @@
 package config
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"time"
 
 	"github.com/luxfi/constants"

vms/platformvm/config/execution_config_test.go

@@ -4,7 +4,7 @@
 package config
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"testing"
 	"time"
 

vms/platformvm/service.go

@@ -5,7 +5,6 @@ package platformvm
 
 import (
 	"context"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"maps"
@@ -14,6 +13,7 @@ import (
 	"slices"
 	"time"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/log"
 
 	validators "github.com/luxfi/validators"

vms/platformvm/signer/hybrid_proof_of_possession.go

@@ -4,9 +4,9 @@
 package signer
 
 import (
-	"encoding/json"
 	"errors"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/crypto/bls"
 	"github.com/luxfi/formatting"
 )

vms/platformvm/signer/proof_of_possession.go

@@ -4,9 +4,9 @@
 package signer
 
 import (
-	"encoding/json"
 	"errors"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/crypto/bls"
 	"github.com/luxfi/formatting"
 )

vms/platformvm/signer/rt_proof_of_possession.go

@@ -4,9 +4,9 @@
 package signer
 
 import (
-	"encoding/json"
 	"errors"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/formatting"
 )
 

vms/platformvm/status/blockchain_status.go

@@ -4,10 +4,10 @@
 package status
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/node/vms/components/verify"
 )
 

vms/platformvm/status/blockchain_status_test.go

@@ -4,10 +4,10 @@
 package status
 
 import (
-	"encoding/json"
 	"math"
 	"testing"
 
+	"github.com/go-json-experiment/json"
 	"github.com/stretchr/testify/require"
 )
 

vms/platformvm/status/status.go

@@ -4,10 +4,10 @@
 package status
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/node/vms/components/verify"
 )
 

vms/platformvm/status/status_test.go

@@ -4,10 +4,10 @@
 package status
 
 import (
-	"encoding/json"
 	"math"
 	"testing"
 
+	"github.com/go-json-experiment/json"
 	"github.com/stretchr/testify/require"
 )
 

vms/platformvm/txs/add_permissionless_delegator_tx_test.go

@@ -4,7 +4,8 @@
 package txs
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"errors"
 	"math"
 	"testing"
@@ -397,7 +398,7 @@ func TestAddPermissionlessPrimaryDelegatorSerialization(t *testing.T) {
 	}
 	unsignedComplexAddPrimaryTx.InitRuntime(rt2)
 
-	unsignedComplexAddPrimaryTxJSONBytes, err := json.MarshalIndent(unsignedComplexAddPrimaryTx, "", "\t")
+	unsignedComplexAddPrimaryTxJSONBytes, err := json.Marshal(unsignedComplexAddPrimaryTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(`{
 	"networkID": 1,
@@ -926,7 +927,7 @@ func TestAddPermissionlessNetDelegatorSerialization(t *testing.T) {
 	}
 	unsignedComplexAddNetTx.InitRuntime(rt3)
 
-	unsignedComplexAddNetTxJSONBytes, err := json.MarshalIndent(unsignedComplexAddNetTx, "", "\t")
+	unsignedComplexAddNetTxJSONBytes, err := json.Marshal(unsignedComplexAddNetTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(`{
 	"networkID": 1,

vms/platformvm/txs/base_tx_test.go

@@ -6,7 +6,8 @@ package txs
 import (
 	"github.com/luxfi/runtime"
 
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -250,7 +251,7 @@ func TestBaseTxSerialization(t *testing.T) {
 	}
 	unsignedComplexBaseTx.InitRuntime(rt3)
 
-	unsignedComplexBaseTxJSONBytes, err := json.MarshalIndent(unsignedComplexBaseTx, "", "\t")
+	unsignedComplexBaseTxJSONBytes, err := json.Marshal(unsignedComplexBaseTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(`{
 	"networkID": 1,

vms/platformvm/txs/convert_network_to_l1_tx_test.go

@@ -5,7 +5,8 @@ package txs
 
 import (
 	"encoding/hex"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -354,7 +355,7 @@ func TestConvertNetworkToL1TxSerialization(t *testing.T) {
 			rt := consensustest.Runtime(t, constants.PlatformChainID)
 			test.tx.InitRuntime(rt)
 
-			txJSON, err := json.MarshalIndent(test.tx, "", "\t")
+			txJSON, err := json.Marshal(test.tx, jsontext.WithIndent("\t"))
 			require.NoError(err)
 			require.JSONEq(string(test.expectedJSON), string(txJSON))
 		})

vms/platformvm/txs/disable_l1_validator_tx_test.go

@@ -4,7 +4,8 @@
 package txs
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -203,7 +204,7 @@ func TestDisableL1ValidatorTxSerialization(t *testing.T) {
 	rt := consensustest.Runtime(t, constants.PlatformChainID)
 	unsignedTx.InitRuntime(rt)
 
-	txJSON, err := json.MarshalIndent(unsignedTx, "", "\t")
+	txJSON, err := json.Marshal(unsignedTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(string(disableL1ValidatorTxJSON), string(txJSON))
 }

vms/platformvm/txs/fee/complexity_test.go

@@ -5,7 +5,8 @@ package fee
 
 import (
 	"encoding/hex"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -43,7 +44,7 @@ func TestTxComplexity_Individual(t *testing.T) {
 
 			// If the test fails, logging the transaction can be helpful for
 			// debugging.
-			txJSON, err := json.MarshalIndent(tx, "", "\t")
+			txJSON, err := json.Marshal(tx, jsontext.WithIndent("\t"))
 			require.NoError(err)
 			t.Log(string(txJSON))
 

vms/platformvm/txs/increase_l1_validator_balance_tx_test.go

@@ -4,7 +4,8 @@
 package txs
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -201,7 +202,7 @@ func TestIncreaseL1ValidatorBalanceTxSerialization(t *testing.T) {
 	rt := consensustest.Runtime(t, constants.PlatformChainID)
 	unsignedTx.InitRuntime(rt)
 
-	txJSON, err := json.MarshalIndent(unsignedTx, "", "\t")
+	txJSON, err := json.Marshal(unsignedTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(string(increaseL1ValidatorBalanceTxJSON), string(txJSON))
 }

vms/platformvm/txs/register_l1_validator_tx_test.go

@@ -5,7 +5,8 @@ package txs
 
 import (
 	"encoding/hex"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -221,7 +222,7 @@ func TestRegisterL1ValidatorTxSerialization(t *testing.T) {
 	rt := consensustest.Runtime(t, constants.PlatformChainID)
 	unsignedTx.InitRuntime(rt)
 
-	txJSON, err := json.MarshalIndent(unsignedTx, "", "\t")
+	txJSON, err := json.Marshal(unsignedTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(string(registerL1ValidatorTxJSON), string(txJSON))
 }

vms/platformvm/txs/remove_chain_validator_tx_test.go

@@ -4,7 +4,8 @@
 package txs
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"errors"
 	"testing"
 
@@ -292,7 +293,7 @@ func TestRemoveChainValidatorTxSerialization(t *testing.T) {
 	}
 	unsignedComplexRemoveValidatorTx.InitRuntime(rt3)
 
-	unsignedComplexRemoveValidatorTxJSONBytes, err := json.MarshalIndent(unsignedComplexRemoveValidatorTx, "", "\t")
+	unsignedComplexRemoveValidatorTxJSONBytes, err := json.Marshal(unsignedComplexRemoveValidatorTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(`{
 	"networkID": 1,

vms/platformvm/txs/set_l1_validator_weight_tx_test.go

@@ -4,7 +4,8 @@
 package txs
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -192,7 +193,7 @@ func TestSetL1ValidatorWeightTxSerialization(t *testing.T) {
 	rt := consensustest.Runtime(t, constants.PlatformChainID)
 	unsignedTx.InitRuntime(rt)
 
-	txJSON, err := json.MarshalIndent(unsignedTx, "", "\t")
+	txJSON, err := json.Marshal(unsignedTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(string(setL1ValidatorWeightTxJSON), string(txJSON))
 }

vms/platformvm/txs/transfer_chain_ownership_tx_test.go

@@ -6,7 +6,8 @@ package txs
 import (
 	"github.com/luxfi/runtime"
 
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/luxfi/mock/gomock"
@@ -296,7 +297,7 @@ func TestTransferChainOwnershipTxSerialization(t *testing.T) {
 	}
 	unsignedComplexTransferChainOwnershipTx.InitRuntime(rt3)
 
-	unsignedComplexTransferChainOwnershipTxJSONBytes, err := json.MarshalIndent(unsignedComplexTransferChainOwnershipTx, "", "\t")
+	unsignedComplexTransferChainOwnershipTxJSONBytes, err := json.Marshal(unsignedComplexTransferChainOwnershipTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(`{
 	"networkID": 1,

vms/platformvm/txs/transform_chain_tx_test.go

@@ -4,7 +4,8 @@
 package txs
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"testing"
 
 	"github.com/luxfi/runtime"
@@ -336,7 +337,7 @@ func TestTransformChainTxSerialization(t *testing.T) {
 	}
 	unsignedComplexTransformTx.InitRuntime(rt3)
 
-	unsignedComplexTransformTxJSONBytes, err := json.MarshalIndent(unsignedComplexTransformTx, "", "\t")
+	unsignedComplexTransformTxJSONBytes, err := json.Marshal(unsignedComplexTransformTx, jsontext.WithIndent("\t"))
 	require.NoError(err)
 	require.JSONEq(`{
 	"networkID": 1,

vms/rpcchainvm/zap/client.go

@@ -6,7 +6,7 @@ package zap
 
 import (
 	"context"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"fmt"
 	"net"

vms/types/blob_data.go

@@ -4,8 +4,7 @@
 package types
 
 import (
-	"encoding/json"
-
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/formatting"
 )
 

vms/types/blob_data_test.go

@@ -4,9 +4,9 @@
 package types
 
 import (
-	"encoding/json"
 	"testing"
 
+	"github.com/go-json-experiment/json"
 	"github.com/stretchr/testify/require"
 )
 

vms/xvm/config.go

@@ -4,7 +4,7 @@
 package xvm
 
 import (
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 
 	"github.com/luxfi/node/vms/xvm/config"
 	"github.com/luxfi/node/vms/xvm/network"

vms/xvm/service.go

@@ -4,12 +4,12 @@
 package xvm
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"math"
 	"net/http"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/consensus/core/choices"
 	"github.com/luxfi/crypto/secp256k1"
 	"github.com/luxfi/database"

vms/xvm/static_service.go

@@ -4,11 +4,11 @@
 package xvm
 
 import (
-	"encoding/json"
 	"errors"
 	"fmt"
 	"net/http"
 
+	"github.com/go-json-experiment/json"
 	"github.com/luxfi/address"
 	"github.com/luxfi/formatting"
 	"github.com/luxfi/ids"

vms/xvm/vm_security_profile_test.go

@@ -5,7 +5,7 @@ package xvm
 
 import (
 	"context"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"errors"
 	"sync"
 	"testing"

vms/xvm/vm_test_helpers_test.go

@@ -5,7 +5,7 @@ package xvm
 
 import (
 	"context"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"sync"
 	"testing"
 

wallet/network/primary/examples/bootstrap-hanzo/main.go

@@ -10,7 +10,7 @@ package main
 
 import (
 	"context"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"flag"
 	"fmt"
 	"log"

wallet/network/primary/examples/deploy-chains/main.go

@@ -9,7 +9,7 @@ package main
 
 import (
 	"context"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
 	"flag"
 	"fmt"
 	"log"

wallet/network/primary/examples/register-l1-validator/main.go

@@ -6,7 +6,8 @@ package main
 import (
 	"context"
 	"encoding/hex"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"fmt"
 	"log"
 	"time"
@@ -96,7 +97,7 @@ func main() {
 	if err != nil {
 		log.Fatalf("failed to create RegisterL1Validator message: %s\n", err)
 	}
-	addressedCallPayloadJSON, err := json.MarshalIndent(addressedCallPayload, "", "\t")
+	addressedCallPayloadJSON, err := json.Marshal(addressedCallPayload, jsontext.WithIndent("\t"))
 	if err != nil {
 		log.Fatalf("failed to marshal RegisterL1Validator message: %s\n", err)
 	}

wallet/network/primary/examples/set-l1-validator-weight/main.go

@@ -6,7 +6,8 @@ package main
 import (
 	"context"
 	"encoding/hex"
-	"encoding/json"
+	"github.com/go-json-experiment/json"
+	"github.com/go-json-experiment/json/jsontext"
 	"log"
 	"time"
 
@@ -73,7 +74,7 @@ func main() {
 	if err != nil {
 		log.Fatalf("failed to create L1ValidatorWeight message: %s\n", err)
 	}
-	addressedCallPayloadJSON, err := json.MarshalIndent(addressedCallPayload, "", "\t")
+	addressedCallPayloadJSON, err := json.Marshal(addressedCallPayload, jsontext.WithIndent("\t"))
 	if err != nil {
 		log.Fatalf("failed to marshal L1ValidatorWeight message: %s\n", err)
 	}