8282d60c69
Adds the composable monorepo template system that generates project skeletons with pluggable components (service, worker, app-react, app-astro, cli). Key changes: - Monorepo skeleton templates with shared pkg/, scripts/, and git hooks - Component templates (service, worker, app-react, app-astro, cli) with Dockerfiles, CI steps, and component.yaml manifests - Component domain model with validation and dependency resolution - Component handler endpoints for CRUD and composition - Template provider extended with BuildComposableProject and component assembly - Deployer extended with composable project deployment support - Handler timeout constants (TimeoutFastLookup through TimeoutLongRunning) - envutil package for centralized env var reads with defaults - api.DecodeJSON helper for standardized request body decoding - Standardized response helpers (WriteBadRequest, WriteNotFound, etc.) - Replaced fullstack-app cookbook with composable-app cookbook - Hardened handler timeouts, logging, and error responses across all handlers Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
package api
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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)
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var (
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// ErrEmptyBody is returned when the request body is empty or nil.
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ErrEmptyBody = errors.New("request body is empty")
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// ErrInvalidJSON is returned when the request body contains invalid JSON.
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ErrInvalidJSON = errors.New("invalid JSON")
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)
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// DecodeJSON decodes JSON from the request body into v.
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// Returns descriptive errors for common failure cases:
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// - nil or empty body → ErrEmptyBody
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// - malformed JSON → ErrInvalidJSON
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//
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// Usage:
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//
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// if err := api.DecodeJSON(r, &req); err != nil {
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// api.WriteBadRequest(w, r, "invalid request body")
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// return
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// }
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func DecodeJSON(r *http.Request, v any) error {
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if r.Body == nil {
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return ErrEmptyBody
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}
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decoder := json.NewDecoder(r.Body)
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if err := decoder.Decode(v); err != nil {
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if errors.Is(err, io.EOF) {
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return ErrEmptyBody
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}
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return fmt.Errorf("%w: %w", ErrInvalidJSON, err)
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}
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return nil
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}
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// DecodeJSONStrict decodes JSON from the request body into v.
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// Rejects JSON containing fields not present in the target struct.
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func DecodeJSONStrict(r *http.Request, v any) error {
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if r.Body == nil {
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return ErrEmptyBody
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}
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decoder := json.NewDecoder(r.Body)
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decoder.DisallowUnknownFields()
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if err := decoder.Decode(v); err != nil {
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if errors.Is(err, io.EOF) {
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return ErrEmptyBody
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}
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return fmt.Errorf("%w: %w", ErrInvalidJSON, err)
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}
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return nil
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}
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