Documentation
¶
Overview ¶
Package service provides BaseService with decorator support for building domain service layers with cross-cutting concerns.
BaseService delegates all CRUD operations to an interfaces.Repository, keeping the service layer thin. Use the decorators sub-package to wrap services with logging, authorization, and panic recovery via a fluent builder.
Index ¶
- func OpChain(name string, timeout time.Duration, logger interfaces.Logger, ...) decorate.OpMiddleware
- type BaseService
- func (s *BaseService[T, P, ID]) Create(ctx context.Context, entity *T) (*T, error)
- func (s *BaseService[T, P, ID]) Delete(ctx context.Context, id ID) error
- func (s *BaseService[T, P, ID]) Get(ctx context.Context, id ID) (*T, error)
- func (s *BaseService[T, P, ID]) List(ctx context.Context, params P, page types.PageRequest) (*types.Page[T], error)
- func (s *BaseService[T, P, ID]) Name() string
- func (s *BaseService[T, P, ID]) Update(ctx context.Context, id ID, entity *T) (*T, error)
- type CRUDNoListRepo
- type CRUDNoListService
- func (s CRUDNoListService[T, ID]) Create(ctx context.Context, entity *T) (*T, error)
- func (s CRUDNoListService[T, ID]) Delete(ctx context.Context, id ID) error
- func (s CRUDNoListService[T, ID]) Get(ctx context.Context, id ID) (*T, error)
- func (s CRUDNoListService[T, ID]) Update(ctx context.Context, id ID, entity *T) (*T, error)
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func OpChain ¶
func OpChain( name string, timeout time.Duration, logger interfaces.Logger, metrics interfaces.Metrics, tracer interfaces.Tracer, authFn func(ctx context.Context, action string) error, ) decorate.OpMiddleware
OpChain builds the custom-operation decoration chain for a service named name, reproducing the order the CRUD decorator builder applies to custom ops (behavior-preserving) — outermost → innermost: recovery → tracing → metrics → logging → auth → timeout. Recovery is ALWAYS outermost (the builder always adds it; a nil logger still recovers, just without logging). Validation is entity-based and a passthrough for custom ops, so it is omitted. Any nil dependency (nil authFn, or a non-positive timeout) omits its middleware, matching the builder. Custom service methods run through this via decorate.Exec[R].
Types ¶
type BaseService ¶
type BaseService[T any, P any, ID comparable] struct { // contains filtered or unexported fields }
BaseService wraps a Repository and implements the core Service interface. It is the standard entry point for building decorated service stacks.
func New ¶
func New[T, P any, ID comparable]( repo interfaces.Repository[T, P, ID], name string, ) *BaseService[T, P, ID]
New creates a new BaseService wrapping the given repository.
func (*BaseService[T, P, ID]) Create ¶
func (s *BaseService[T, P, ID]) Create(ctx context.Context, entity *T) (*T, error)
Create persists a new entity and returns the created record.
func (*BaseService[T, P, ID]) Delete ¶
func (s *BaseService[T, P, ID]) Delete(ctx context.Context, id ID) error
Delete removes an entity by its identifier.
func (*BaseService[T, P, ID]) Get ¶
func (s *BaseService[T, P, ID]) Get(ctx context.Context, id ID) (*T, error)
Get retrieves an entity by its identifier.
func (*BaseService[T, P, ID]) List ¶
func (s *BaseService[T, P, ID]) List( ctx context.Context, params P, page types.PageRequest, ) (*types.Page[T], error)
List retrieves a paginated list of entities matching the given filter parameters.
func (*BaseService[T, P, ID]) Name ¶
func (s *BaseService[T, P, ID]) Name() string
Name returns the service name (used for decorator labels).
type CRUDNoListRepo ¶
type CRUDNoListRepo[T any, ID comparable] interface { // Reader contributes Get (read by id). interfaces.Reader[T, ID] // Writer contributes Create and Update. interfaces.Writer[T, ID] // Deleter contributes Delete (remove by id). interfaces.Deleter[ID] }
CRUDNoListRepo is the list-less repository surface a list-less service delegates to: Get + Create + Update + Delete (services expose no Exists). A list-less repository (e.g. repository.CRUDNoListRepository: Reader+Writer+Deleter+Exister) satisfies it.
type CRUDNoListService ¶
type CRUDNoListService[T any, ID comparable] struct { // contains filtered or unexported fields }
CRUDNoListService is a decorated domain service for a list-less resource (Reader + Writer + Deleter, no Lister). It delegates each op to the repository through the shared service OpChain, so it carries the shared recovery/observability/timeout stack without embedding (and panicking) a List the resource cannot serve. It is the service-tier sibling of the full-CRUD decorator builder for resources whose collection is not listable (e.g. one addressed only by id or an external id).
func NewCRUDNoListService ¶
func NewCRUDNoListService[T any, ID comparable]( name string, repo CRUDNoListRepo[T, ID], timeout time.Duration, logger interfaces.Logger, metrics interfaces.Metrics, tracer interfaces.Tracer, authFn func(ctx context.Context, action string) error, ) CRUDNoListService[T, ID]
NewCRUDNoListService builds a decorated list-less service over the repository under the given name (stamped on metrics/logs/spans, and used as the "<name>.<Op>" authorization action prefix). Any nil observability collaborator (or nil authFn / non-positive timeout) skips its middleware; recovery is always present (the service OpChain always adds it).
func (CRUDNoListService[T, ID]) Create ¶
func (s CRUDNoListService[T, ID]) Create(ctx context.Context, entity *T) (*T, error)
Create persists a new entity through the decorated service chain.
func (CRUDNoListService[T, ID]) Delete ¶
func (s CRUDNoListService[T, ID]) Delete(ctx context.Context, id ID) error
Delete removes an entity by id through the decorated service chain.
Source Files
Directories
¶
| Path | Synopsis |
|---|---|
|
Package decorators provides fluent decorator composition for services.
|
Package decorators provides fluent decorator composition for services. |