/
main.go
86 lines (76 loc) · 1.73 KB
/
main.go
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// Copied from the github.com/mattn/go-sqlite3 example
package main
import (
"context"
"fmt"
"log"
"os"
sqlite "github.com/mattn/go-sqlite3" // Setup application to use Sqlite
sqltrace "gopkg.in/DataDog/dd-trace-go.v1/contrib/database/sql"
"gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer"
)
func main() {
tracer.Start(tracer.WithDebugMode(true), tracer.WithServiceName("sqlite-example"))
defer tracer.Stop()
sqltrace.Register(
"sqlite",
&sqlite.SQLiteDriver{},
sqltrace.WithServiceName("sqlite-example"))
os.Remove("./foo.db")
db, err := sqltrace.Open("sqlite", "./foo.db")
if err != nil {
log.Fatal(err)
}
defer db.Close()
// Create a root span, giving name, server and resource.
span, ctx := tracer.StartSpanFromContext(
context.Background(),
"my-query",
tracer.SpanType("db"),
tracer.ResourceName("initial-access"),
)
defer span.Finish()
sqlStmt := `
create table foo (id integer not null primary key, name text);
delete from foo;
`
_, err = db.ExecContext(ctx, sqlStmt)
if err != nil {
log.Printf("%q: %s\n", err, sqlStmt)
return
}
tx, err := db.BeginTx(ctx, nil)
if err != nil {
log.Fatal(err)
}
stmt, err := tx.PrepareContext(ctx, "insert into foo(id, name) values(?, ?)")
if err != nil {
log.Fatal(err)
}
defer stmt.Close()
for i := 0; i < 100; i++ {
_, err = stmt.ExecContext(ctx, i, fmt.Sprintf("Number: %03d", i))
if err != nil {
log.Fatal(err)
}
}
tx.Commit()
rows, err := db.QueryContext(ctx, "select id, name from foo")
if err != nil {
log.Fatal(err)
}
defer rows.Close()
for rows.Next() {
var id int
var name string
err = rows.Scan(&id, &name)
if err != nil {
log.Fatal(err)
}
fmt.Println(id, name)
}
err = rows.Err()
if err != nil {
log.Fatal(err)
}
}