micro-server-http/handler/graphql/graphql.go

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//go:build ignore
package graphql_handler
import (
"context"
"fmt"
"github.com/99designs/gqlgen/graphql"
"go.unistack.org/micro/v3/logger"
"go.unistack.org/micro/v3/store"
)
var _ graphql.Cache = (*cacheWrapper)(nil)
type Handler struct {
opts Options
}
type Option func(*Options)
type Options struct {
cache *cacheWrapper
Path string
}
type cacheWrapper struct {
s store.Store
l logger.Logger
}
func (c *cacheWrapper) Get(ctx context.Context, key string) (interface{}, bool) {
var val interface{}
if err := c.s.Read(ctx, key, val); err != nil && err != store.ErrNotFound {
c.l.Error(ctx, fmt.Sprintf("cache.Get %s failed", key), err)
return nil, false
}
return val, true
}
func (c *cacheWrapper) Add(ctx context.Context, key string, val interface{}) {
if err := c.s.Write(ctx, key, val); err != nil {
c.l.Error(ctx, fmt.Sprintf("cache.Add %s failed", key), err)
}
}
func Store(s store.Store) Option {
return func(o *Options) {
if o.cache == nil {
o.cache = &cacheWrapper{}
}
o.cache.s = s
}
}
func Logger(l logger.Logger) Option {
return func(o *Options) {
if o.cache == nil {
o.cache = &cacheWrapper{}
}
o.cache.l = l
}
}
func Path(path string) Option {
return func(o *Options) {
o.Path = path
}
}
func NewHandler(opts ...Option) *Handler {
options := Options{}
for _, o := range opts {
o(&options)
}
return &Handler{opts: options}
}