mirror of
https://github.com/hanzoai/zip.git
synced 2026-10-30 20:11:40 +00:00
zeekay
6b47025279
Establish zip as the canonical Hanzo Go web framework with embedded
in-process JS execution and a native ZAP RPC HTTP transport. One Go
binary mounts native handlers, legacy TS/JS handlers, WebSocket, and
the ZAP RPC plane — no separate runtime service, no inter-service RPC,
no container-per-service.
zip/runtime/ (new):
- jsvm.go NewJSRuntime / Eval / RegisterHostFn / LoadModule, backed
by a pool of *goja.Runtime (pure Go, no CGO). Pool pattern
lifted from hanzoai/base/plugins/gojavm, slimmed to run +
forEach so late host-fn / module registration reaches warm
VMs.
- pool.go fixed-size goja VM pool; saturated calls fall back to a
fully-provisioned one-off VM.
- require.go CommonJS-style require(): per-VM module sources + memoized
exports in a Go-side side-table (never visible to JS).
- esbuild.go TranspileToES5: TS/modern-JS -> goja-ready JS via esbuild's
pure-Go API (ES2015 target, CommonJS format).
- handler.go JSHandler / JSModule: mount an Express-shaped (req, res) JS
function as a fiber.Handler; req mirrors method/path/query/
headers/body, res mirrors status/set/json/send.
- json.go encode/decode through internal/jsonenc — one wire format.
zip/zaprpc/ (new on existing Registry seam):
- envelope.go canonical ZAP RPC frame (service/method/payload) over the
zap-proto/go wire codec.
- http.go HTTPHandler(reg): serves the ZAP RPC plane over HTTP POST;
binary envelope canonical, X-ZAP-* headers are a hint only.
examples/express-in-zip/ (new): legacy app.ts -> real esbuild -> real
goja -> real Fiber -> real HTTP, with an integration test proving
GET /legacy/foo and POST /legacy/bar body echo.
README: embedded-JS migration path + single-binary (HIP-0106) sections.
go build ./... and go test ./... (incl. -race) pass.
78 lines
2.2 KiB
Go
78 lines
2.2 KiB
Go
package zaprpc
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
zap "github.com/zap-proto/go"
|
|
)
|
|
|
|
// The ZAP RPC envelope is the canonical on-the-wire framing for one RPC
|
|
// call carried over HTTP (or any byte transport). It is a ZAP Message
|
|
// whose root Object has a 24-byte fixed section with three fields:
|
|
//
|
|
// offset 0: service (text — 8 bytes: u32 rel-offset + u32 len)
|
|
// offset 8: method (text — 8 bytes)
|
|
// offset 16: payload (bytes — 8 bytes)
|
|
//
|
|
// Binary is canonical: the X-ZAP-Service / X-ZAP-Method HTTP headers are
|
|
// only a fast-path hint and the envelope wins on any disagreement.
|
|
const (
|
|
envServiceOff = 0
|
|
envMethodOff = 8
|
|
envPayloadOff = 16
|
|
envFixedSize = 24
|
|
)
|
|
|
|
// Envelope is the decoded form of a ZAP RPC frame.
|
|
type Envelope struct {
|
|
Service string
|
|
Method string
|
|
Payload []byte
|
|
}
|
|
|
|
// EncodeEnvelope builds the canonical ZAP RPC frame for e.
|
|
func EncodeEnvelope(e Envelope) []byte {
|
|
b := zap.NewBuilder(256 + len(e.Payload))
|
|
ob := b.StartObject(envFixedSize)
|
|
ob.SetText(envServiceOff, e.Service)
|
|
ob.SetText(envMethodOff, e.Method)
|
|
ob.SetBytes(envPayloadOff, e.Payload)
|
|
ob.FinishAsRoot()
|
|
return b.Finish()
|
|
}
|
|
|
|
// DecodeEnvelope parses a ZAP RPC frame. Returns an error if the bytes
|
|
// are not a valid ZAP message.
|
|
func DecodeEnvelope(data []byte) (Envelope, error) {
|
|
msg, err := zap.Parse(data)
|
|
if err != nil {
|
|
return Envelope{}, fmt.Errorf("zaprpc: decode envelope: %w", err)
|
|
}
|
|
root := msg.Root()
|
|
if root.IsNull() {
|
|
return Envelope{}, fmt.Errorf("zaprpc: decode envelope: null root")
|
|
}
|
|
return Envelope{
|
|
Service: root.Text(envServiceOff),
|
|
Method: root.Text(envMethodOff),
|
|
Payload: root.Bytes(envPayloadOff),
|
|
}, nil
|
|
}
|
|
|
|
// EncodeResponse wraps a method's response payload in a ZAP frame. The
|
|
// response uses the same envelope shape with empty service/method so a
|
|
// single decoder handles both directions; callers that only need the
|
|
// payload can use DecodeResponse.
|
|
func EncodeResponse(payload []byte) []byte {
|
|
return EncodeEnvelope(Envelope{Payload: payload})
|
|
}
|
|
|
|
// DecodeResponse extracts the payload from a response frame.
|
|
func DecodeResponse(data []byte) ([]byte, error) {
|
|
e, err := DecodeEnvelope(data)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return e.Payload, nil
|
|
}
|