func Example() {
client := dynago.NewClient(executor)
// Create the person we want in the database.
person := Person{Id: 5, Name: "Bob", Age: 40, Address: "123 fake street"}
client.PutItem("Person", person.AsDocument()).Execute()
// Bob's address was fake, let's blank it out:
person.Address = ""
update := safeupdate.Build(personKeys, person.AsDocument())
// output: SET Age=:a, #b=:b REMOVE Address
fmt.Println(update.Expression)
// Okay, we proved our point, let's execute it:
update.Apply(client, "Person").Execute()
}
func Example() {
client := dynago.NewClient(executor)
writer := bulk.New(bulk.Config{
Client: client,
Table: "people",
})
// Start a goroutine to read results
go resultReader(writer.Results())
// Start putting 1000 records of bulk data
for i := 0; i < 1000; i++ {
writer.Write(dynago.Document{
"Id": i,
"Name": fmt.Sprintf("User%d", i),
})
}
writer.CloseWait()
}
func ExampleStreamer() {
client := dynago.NewClient(executor)
result, err := client.DescribeTable("mytable")
if err != nil {
return
}
config := streams.NewConfig().
WithExecutor(executor).
WithArn(result.Table.LatestStreamArn)
streamer := streams.NewStreamer(config)
// This is actually the mainloop of the application. It waits for newly
// discovered shards to investigate, and the channel will close if the
// streamer is ever shut down.
for shard := range streamer.ShardUpdater() {
log.Printf("Got shard with ID %s", shard.Id())
go worker(shard)
}
log.Printf("Streamer exiting.")
streamer.Close()
}