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https://github.com/luxfi/node.git
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Hanzo AI
c3b398bc7b
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)
64 lines
1.9 KiB
Go
64 lines
1.9 KiB
Go
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package health
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import (
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"net/http"
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"github.com/go-json-experiment/json"
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"github.com/gorilla/rpc/v2"
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apihealth "github.com/luxfi/api/health"
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"github.com/luxfi/log"
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avajson "github.com/luxfi/node/utils/json"
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)
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// NewGetAndPostHandler returns a health handler that supports GET and jsonrpc
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// POST requests.
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func NewGetAndPostHandler(log log.Logger, reporter Reporter) (http.Handler, error) {
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newServer := rpc.NewServer()
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codec := avajson.NewCodec()
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newServer.RegisterCodec(codec, "application/json")
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newServer.RegisterCodec(codec, "application/json;charset=UTF-8")
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getHandler := NewGetHandler(reporter.Health)
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// If a GET request is sent, we respond with a 200 if the node is healthy or
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// a 503 if the node isn't healthy.
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handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodGet {
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newServer.ServeHTTP(w, r)
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return
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}
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getHandler.ServeHTTP(w, r)
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})
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err := newServer.RegisterService(NewService(log, reporter), "health")
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return handler, err
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}
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// NewGetHandler return a health handler that supports GET requests reporting
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// the result of the provided [reporter].
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func NewGetHandler(reporter func(tags ...string) (map[string]apihealth.Result, bool)) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// Make sure the content type is set before writing the header.
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w.Header().Set("Content-Type", "application/json")
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tags := r.URL.Query()["tag"]
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checks, healthy := reporter(tags...)
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if !healthy {
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// If a health check has failed, we should return a 503.
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w.WriteHeader(http.StatusServiceUnavailable)
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}
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// The encoder will call write on the writer, which will write the
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// header with a 200.
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_ = json.MarshalWrite(w, apihealth.APIReply{
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Checks: checks,
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Healthy: healthy,
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})
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})
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}
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