monorepo/cloud/maplefile-backend/internal/interface/http/collection/create.go

109 lines
3.3 KiB
Go

// monorepo/cloud/backend/internal/maplefile/interface/http/collection/create.go
package collection
import (
"bytes"
"context"
"encoding/json"
"io"
"net/http"
"go.uber.org/zap"
"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/config"
"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/interface/http/middleware"
svc_collection "codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/internal/service/collection"
"codeberg.org/mapleopentech/monorepo/cloud/maplefile-backend/pkg/httperror"
)
type CreateCollectionHTTPHandler struct {
config *config.Configuration
logger *zap.Logger
service svc_collection.CreateCollectionService
middleware middleware.Middleware
}
func NewCreateCollectionHTTPHandler(
config *config.Configuration,
logger *zap.Logger,
service svc_collection.CreateCollectionService,
middleware middleware.Middleware,
) *CreateCollectionHTTPHandler {
logger = logger.Named("CreateCollectionHTTPHandler")
return &CreateCollectionHTTPHandler{
config: config,
logger: logger,
service: service,
middleware: middleware,
}
}
func (*CreateCollectionHTTPHandler) Pattern() string {
return "POST /api/v1/collections"
}
func (h *CreateCollectionHTTPHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
// Apply middleware before handling the request
h.middleware.Attach(h.Execute)(w, req)
}
func (h *CreateCollectionHTTPHandler) unmarshalRequest(
ctx context.Context,
r *http.Request,
) (*svc_collection.CreateCollectionRequestDTO, error) {
// Initialize our structure which will store the parsed request data
var requestData svc_collection.CreateCollectionRequestDTO
defer r.Body.Close()
var rawJSON bytes.Buffer
teeReader := io.TeeReader(r.Body, &rawJSON) // TeeReader allows you to read the JSON and capture it
// Read the JSON string and convert it into our golang struct
err := json.NewDecoder(teeReader).Decode(&requestData)
if err != nil {
h.logger.Error("Failed to decode create collection request",
zap.Error(err),
zap.String("json", rawJSON.String()),
)
return nil, httperror.NewBadRequestError("Invalid request payload. Please check your collection data.")
}
return &requestData, nil
}
func (h *CreateCollectionHTTPHandler) Execute(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
req, err := h.unmarshalRequest(ctx, r)
if err != nil {
h.logger.Error("Failed to unmarshal create collection request", zap.Error(err))
httperror.RespondWithError(w, r, err)
return
}
resp, err := h.service.Execute(ctx, req)
if err != nil {
h.logger.Error("Failed to create collection", zap.Error(err))
// Service returns RFC 9457 errors, use RespondWithError to handle them
httperror.RespondWithError(w, r, err)
return
}
if resp == nil {
h.logger.Error("No collection returned from service")
problem := httperror.NewInternalServerError("Failed to create collection. Please try again.").
WithInstance(r.URL.Path).
WithTraceID(httperror.ExtractRequestID(r))
httperror.RespondWithProblem(w, problem)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusCreated)
if err := json.NewEncoder(w).Encode(resp); err != nil {
h.logger.Error("Failed to encode collection response", zap.Error(err))
// At this point headers are already sent, log the error but can't send RFC 9457 response
return
}
}