forked from mirror/redis
59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
package redis_test
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import (
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"context"
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"fmt"
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"github.com/go-redis/redis"
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)
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type redisHook struct{}
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var _ redis.Hook = redisHook{}
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func (redisHook) BeforeProcess(ctx context.Context, cmd redis.Cmder) (context.Context, error) {
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fmt.Printf("starting processing: <%s>\n", cmd)
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return ctx, nil
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}
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func (redisHook) AfterProcess(ctx context.Context, cmd redis.Cmder) error {
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fmt.Printf("finished processing: <%s>\n", cmd)
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return nil
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}
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func (redisHook) BeforeProcessPipeline(ctx context.Context, cmds []redis.Cmder) (context.Context, error) {
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fmt.Printf("pipeline starting processing: %v\n", cmds)
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return ctx, nil
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}
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func (redisHook) AfterProcessPipeline(ctx context.Context, cmds []redis.Cmder) error {
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fmt.Printf("pipeline finished processing: %v\n", cmds)
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return nil
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}
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func Example_instrumentation() {
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rdb := redis.NewClient(&redis.Options{
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Addr: ":6379",
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})
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rdb.AddHook(redisHook{})
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rdb.Ping()
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// Output: starting processing: <ping: >
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// finished processing: <ping: PONG>
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}
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func ExamplePipeline_instrumentation() {
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rdb := redis.NewClient(&redis.Options{
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Addr: ":6379",
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})
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rdb.AddHook(redisHook{})
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rdb.Pipelined(func(pipe redis.Pipeliner) error {
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pipe.Ping()
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pipe.Ping()
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return nil
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})
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// Output: pipeline starting processing: [ping: ping: ]
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// pipeline finished processing: [ping: PONG ping: PONG]
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}
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