hnysqlx

package
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 Go to latest Published: Apr 17, 2019 License: Apache-2.0 Imports: 10 Imported by: 0

README

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Documentation

Overview

Package hnysqlx wraps `jmoiron/sqlx` to emit one Honeycomb event per DB call.

After opening a DB connection, replace the *sqlx.DB object with a *hnysqlx.DB object. The *hnysqlx.DB struct implements all the same functions as the normal *sqlx.DB struct, and emits an event to Honeycomb with details about the SQL event made.

If you're using transactions, named statements, and so on, there will be a similar swap of `*sqlx` to `*hnysqlx` for each of the additional types you're using.

Additionally, if hnysqlx is used in conjunction with one of the Honeycomb HTTP wrappers *and* you're using the context-aware versions of the SQL calls, the trace ID picked up in the HTTP event will appear in the SQL event. This will ensure you can track any SQL call back to the HTTP event that triggered it.

It is strongly suggested that you use the context-aware version of all calls whenever possible; doing so not only lets you cancel your database calls, but dramatically increases the value of the SQL isntrumentation by letting you tie it back to individual HTTP requests.

If you need to differentiate multiple DB connections, there is a *libhoney.Builder associated with the *hnysqlx.DB (as well as with transactions and statements). Adding fields to this builder will add those fields to all events generated from that DB connection.

Example 
// Initialize beeline. The only required field is WriteKey.
beeline.Init(beeline.Config{
	WriteKey: "abcabc123123",
	Dataset:  "sqlx",
	// for demonstration, send the event to STDOUT intead of Honeycomb.
	// Remove the STDOUT setting when filling in a real write key.
	STDOUT: true,
})
// and make sure we close to force flushing all pending events before shutdown
defer beeline.Close()

// open a regular sqlx connection
odb, err := sqlx.Open("mysql", "root:@tcp(127.0.0.1)/donut")
if err != nil {
	fmt.Println("connection err")
}

// replace it with a wrapped hnysqlx.DB
db := hnysqlx.WrapDB(odb)
// and start up a trace for these statements to join
ctx, span := beeline.StartSpan(context.Background(), "start")
defer span.Send()

db.MustExecContext(ctx, "insert into flavors (flavor) values ('rose')")
fv := "rose"
rows, err := db.QueryxContext(ctx, "SELECT id FROM flavors WHERE flavor=?", fv)
if err != nil {
	log.Fatal(err)
}
defer rows.Close()
for rows.Next() {
	var id int
	if err := rows.Scan(&id); err != nil {
		log.Fatal(err)
	}
	fmt.Printf("%d is %s\n", id, fv)
}
if err := rows.Err(); err != nil {
	log.Fatal(err)
}

Output:

Index

Examples

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type DB 

type DB struct {

	// Builder is available in case you wish to add fields to every SQL event
	// that will be created.
	Builder *libhoney.Builder

	Mapper *reflectx.Mapper
	// contains filtered or unexported fields
}

func WrapDB 

func WrapDB(s *sqlx.DB) *DB

func (*DB) BeginTxx 

func (db *DB) BeginTxx(ctx context.Context, opts *sql.TxOptions) (*Tx, error)

func (*DB) Beginx 

func (db *DB) Beginx() (*Tx, error)

func (*DB) Close 

func (db *DB) Close() error

not implemented in the wrapper - should just fall through to the superclass

func (*DB) Driver 

func (db *DB) Driver() driver.Driver

func (*DB) Exec 

func (db *DB) Exec(query string, args ...interface{}) (sql.Result, error)

func (*DB) ExecContext 

func (db *DB) ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)

func (*DB) Get 

func (db *DB) Get(dest interface{}, query string, args ...interface{}) error

func (*DB) GetContext 

func (db *DB) GetContext(ctx context.Context, dest interface{}, query string, args ...interface{}) error

func (*DB) MapperFunc 

func (db *DB) MapperFunc(mf func(string) string)

func (*DB) MustBegin 

func (db *DB) MustBegin() *Tx

func (*DB) MustBeginTx 

func (db *DB) MustBeginTx(ctx context.Context, opts *sql.TxOptions) *Tx

func (*DB) MustExec 

func (db *DB) MustExec(query string, args ...interface{}) sql.Result

func (*DB) MustExecContext 

func (db *DB) MustExecContext(ctx context.Context, query string, args ...interface{}) sql.Result

func (*DB) NamedExec 

func (db *DB) NamedExec(query string, arg interface{}) (sql.Result, error)

func (*DB) NamedExecContext 

func (db *DB) NamedExecContext(ctx context.Context, query string, arg interface{}) (sql.Result, error)

func (*DB) NamedQuery 

func (db *DB) NamedQuery(query string, arg interface{}) (*sqlx.Rows, error)

func (*DB) NamedQueryContext 

func (db *DB) NamedQueryContext(ctx context.Context, query string, arg interface{}) (*sqlx.Rows, error)

func (*DB) Ping 

func (db *DB) Ping() error

func (*DB) PingContext 

func (db *DB) PingContext(ctx context.Context) error

func (*DB) PrepareNamed 

func (db *DB) PrepareNamed(query string) (*NamedStmt, error)

func (*DB) PrepareNamedContext 

func (db *DB) PrepareNamedContext(ctx context.Context, query string) (*NamedStmt, error)

func (*DB) Preparex 

func (db *DB) Preparex(query string) (*Stmt, error)

func (*DB) PreparexContext 

func (db *DB) PreparexContext(ctx context.Context, query string) (*Stmt, error)

func (*DB) Query 

func (db *DB) Query(query string, args ...interface{}) (*sql.Rows, error)

func (*DB) QueryContext 

func (db *DB) QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)

func (*DB) QueryRow 

func (db *DB) QueryRow(query string, args ...interface{}) *sql.Row

func (*DB) QueryRowContext 

func (db *DB) QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row

func (*DB) QueryRowx 

func (db *DB) QueryRowx(query string, args ...interface{}) *sqlx.Row

func (*DB) QueryRowxContext 

func (db *DB) QueryRowxContext(ctx context.Context, query string, args ...interface{}) *sqlx.Row

func (*DB) Queryx 

func (db *DB) Queryx(query string, args ...interface{}) (*sqlx.Rows, error)

func (*DB) QueryxContext 

func (db *DB) QueryxContext(ctx context.Context, query string, args ...interface{}) (*sqlx.Rows, error)

func (*DB) Rebind 

func (db *DB) Rebind(query string) string

func (*DB) Select 

func (db *DB) Select(dest interface{}, query string, args ...interface{}) error

func (*DB) SelectContext 

func (db *DB) SelectContext(ctx context.Context, dest interface{}, query string, args ...interface{}) error

func (*DB) SetConnMaxLifetime 

func (db *DB) SetConnMaxLifetime(d time.Duration)

func (*DB) SetMaxIdleConns 

func (db *DB) SetMaxIdleConns(n int)

func (*DB) SetMaxOpenConns 

func (db *DB) SetMaxOpenConns(n int)

func (*DB) Stats 

func (db *DB) Stats() sql.DBStats

type NamedStmt 

type NamedStmt struct {
	Builder *libhoney.Builder
	// contains filtered or unexported fields
}

func (*NamedStmt) Close 

func (n *NamedStmt) Close() error

func (*NamedStmt) Exec 

func (n *NamedStmt) Exec(arg interface{}) (sql.Result, error)

func (*NamedStmt) ExecContext 

func (n *NamedStmt) ExecContext(ctx context.Context, arg interface{}) (sql.Result, error)

func (*NamedStmt) Get 

func (n *NamedStmt) Get(dest interface{}, arg interface{}) error

func (*NamedStmt) GetContext 

func (n *NamedStmt) GetContext(ctx context.Context, dest interface{}, arg interface{}) error

func (*NamedStmt) GetWrappedNamedStmt added in v0.2.0 

func (n *NamedStmt) GetWrappedNamedStmt() *sqlx.NamedStmt

func (*NamedStmt) MustExec 

func (n *NamedStmt) MustExec(arg interface{}) sql.Result

func (*NamedStmt) MustExecContext 

func (n *NamedStmt) MustExecContext(ctx context.Context, arg interface{}) sql.Result

func (*NamedStmt) Query 

func (n *NamedStmt) Query(arg interface{}) (*sql.Rows, error)

func (*NamedStmt) QueryContext 

func (n *NamedStmt) QueryContext(ctx context.Context, arg interface{}) (*sql.Rows, error)

func (*NamedStmt) QueryRow 

func (n *NamedStmt) QueryRow(arg interface{}) *sqlx.Row

func (*NamedStmt) QueryRowContext 

func (n *NamedStmt) QueryRowContext(ctx context.Context, arg interface{}) *sqlx.Row

func (*NamedStmt) QueryRowx 

func (n *NamedStmt) QueryRowx(arg interface{}) *sqlx.Row

func (*NamedStmt) QueryRowxContext 

func (n *NamedStmt) QueryRowxContext(ctx context.Context, arg interface{}) *sqlx.Row

func (*NamedStmt) Queryx 

func (n *NamedStmt) Queryx(arg interface{}) (*sqlx.Rows, error)

func (*NamedStmt) QueryxContext 

func (n *NamedStmt) QueryxContext(ctx context.Context, arg interface{}) (*sqlx.Rows, error)

func (*NamedStmt) Select 

func (n *NamedStmt) Select(dest interface{}, arg interface{}) error

func (*NamedStmt) SelectContext 

func (n *NamedStmt) SelectContext(ctx context.Context, dest interface{}, arg interface{}) error

func (*NamedStmt) Unsafe 

func (n *NamedStmt) Unsafe() *NamedStmt

type Stmt 

type Stmt struct {
	Builder *libhoney.Builder
	Mapper  *reflectx.Mapper
	// contains filtered or unexported fields
}

func (*Stmt) Get 

func (s *Stmt) Get(dest interface{}, args ...interface{}) error

func (*Stmt) GetContext 

func (s *Stmt) GetContext(ctx context.Context, dest interface{}, args ...interface{}) error

func (*Stmt) MustExec 

func (s *Stmt) MustExec(args ...interface{}) sql.Result

func (*Stmt) MustExecContext 

func (s *Stmt) MustExecContext(ctx context.Context, args ...interface{}) sql.Result

func (*Stmt) QueryRowx 

func (s *Stmt) QueryRowx(args ...interface{}) *sqlx.Row

func (*Stmt) QueryRowxContext 

func (s *Stmt) QueryRowxContext(ctx context.Context, args ...interface{}) *sqlx.Row

func (*Stmt) Queryx 

func (s *Stmt) Queryx(args ...interface{}) (*sqlx.Rows, error)

func (*Stmt) QueryxContext 

func (s *Stmt) QueryxContext(ctx context.Context, args ...interface{}) (*sqlx.Rows, error)

func (*Stmt) Select 

func (s *Stmt) Select(dest interface{}, args ...interface{}) error

func (*Stmt) SelectContext 

func (s *Stmt) SelectContext(ctx context.Context, dest interface{}, args ...interface{}) error

func (*Stmt) Unsafe 

func (s *Stmt) Unsafe() *Stmt

type Tx 

type Tx struct {
	Builder *libhoney.Builder
	Mapper  *reflectx.Mapper
	// contains filtered or unexported fields
}

func (*Tx) BindNamed 

func (tx *Tx) BindNamed(query string, arg interface{}) (string, []interface{}, error)

func (*Tx) Commit 

func (tx *Tx) Commit() error

func (*Tx) CommitContext added in v0.1.2 

func (tx *Tx) CommitContext(ctx context.Context) error

CommitContext is the same as `Commit`, but is passed a context to ensure that commits show up as part of a parent trace

func (*Tx) DriverName 

func (tx *Tx) DriverName() string

func (*Tx) Exec 

func (tx *Tx) Exec(query string, args ...interface{}) (sql.Result, error)

func (*Tx) ExecContext 

func (tx *Tx) ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)

func (*Tx) Get 

func (tx *Tx) Get(dest interface{}, query string, args ...interface{}) error

func (*Tx) GetContext 

func (tx *Tx) GetContext(ctx context.Context, dest interface{}, query string, args ...interface{}) error

func (*Tx) GetWrappedTx added in v0.2.0 

func (tx *Tx) GetWrappedTx() *sqlx.Tx

func (*Tx) MustExec 

func (tx *Tx) MustExec(query string, args ...interface{}) sql.Result

func (*Tx) MustExecContext 

func (tx *Tx) MustExecContext(ctx context.Context, query string, args ...interface{}) sql.Result

func (*Tx) NamedExec 

func (tx *Tx) NamedExec(query string, arg interface{}) (sql.Result, error)

func (*Tx) NamedExecContext 

func (tx *Tx) NamedExecContext(ctx context.Context, query string, arg interface{}) (sql.Result, error)

func (*Tx) NamedQuery 

func (tx *Tx) NamedQuery(query string, arg interface{}) (*sqlx.Rows, error)

func (*Tx) NamedQueryContext added in v0.2.0 

func (tx *Tx) NamedQueryContext(ctx context.Context, query string, arg interface{}) (*sqlx.Rows, error)

func (*Tx) NamedStmt 

func (tx *Tx) NamedStmt(stmt *NamedStmt) *NamedStmt

func (*Tx) NamedStmtContext 

func (tx *Tx) NamedStmtContext(ctx context.Context, stmt *NamedStmt) *NamedStmt

func (*Tx) PrepareNamed 

func (tx *Tx) PrepareNamed(query string) (*NamedStmt, error)

func (*Tx) PrepareNamedContext 

func (tx *Tx) PrepareNamedContext(ctx context.Context, query string) (*NamedStmt, error)

func (*Tx) Preparex 

func (tx *Tx) Preparex(query string) (*Stmt, error)

func (*Tx) PreparexContext 

func (tx *Tx) PreparexContext(ctx context.Context, query string) (*Stmt, error)

func (*Tx) Query 

func (tx *Tx) Query(query string, args ...interface{}) (*sql.Rows, error)

func (*Tx) QueryContext 

func (tx *Tx) QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)

func (*Tx) QueryRow 

func (tx *Tx) QueryRow(query string, args ...interface{}) *sql.Row

func (*Tx) QueryRowContext 

func (tx *Tx) QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row

func (*Tx) QueryRowx 

func (tx *Tx) QueryRowx(query string, args ...interface{}) *sqlx.Row

func (*Tx) QueryRowxContext 

func (tx *Tx) QueryRowxContext(ctx context.Context, query string, args ...interface{}) *sqlx.Row

func (*Tx) Queryx 

func (tx *Tx) Queryx(query string, args ...interface{}) (*sqlx.Rows, error)

func (*Tx) QueryxContext 

func (tx *Tx) QueryxContext(ctx context.Context, query string, args ...interface{}) (*sqlx.Rows, error)

func (*Tx) Rebind 

func (tx *Tx) Rebind(query string) string

func (*Tx) Rollback 

func (tx *Tx) Rollback() error

func (*Tx) RollbackContext added in v0.1.2 

func (tx *Tx) RollbackContext(ctx context.Context) error

func (*Tx) Select 

func (tx *Tx) Select(dest interface{}, query string, args ...interface{}) error

func (*Tx) SelectContext 

func (tx *Tx) SelectContext(ctx context.Context, dest interface{}, query string, args ...interface{}) error

func (*Tx) Stmtx 

func (tx *Tx) Stmtx(stmt *Stmt) *Stmt

func (*Tx) StmtxContext 

func (tx *Tx) StmtxContext(ctx context.Context, stmt *Stmt) *Stmt

func (*Tx) Unsafe 

func (tx *Tx) Unsafe() *Tx

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