45 lines
1.0 KiB
Go
45 lines
1.0 KiB
Go
package main
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import (
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"github.com/ThreeDotsLabs/watermill"
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"github.com/ThreeDotsLabs/watermill-sqlite/wmsqlitezombiezen"
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"github.com/ThreeDotsLabs/watermill/message"
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"zombiezen.com/go/sqlite"
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"zombiezen.com/go/sqlite/sqlitex"
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)
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func publishWithInTransaction(connectionDSN string) {
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var err error
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// create a new connection for each transaction
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// unless you guard it with a sync.Mutex
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conn, err := sqlite.OpenConn(connectionDSN)
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if err != nil {
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panic(err)
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}
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defer conn.Close()
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closer := sqlitex.Transaction(conn)
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defer func() {
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if closer(&err); err != nil {
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panic(err)
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}
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}()
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publisher, err := wmsqlitezombiezen.NewPublisher(
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conn,
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wmsqlitezombiezen.PublisherOptions{
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// schema must be initialized elsewhere before using
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// the publisher within the transaction
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InitializeSchema: false,
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},
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)
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if err != nil {
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panic(err)
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}
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msg := message.NewMessage(watermill.NewUUID(), []byte(`{"message": "Hello, world!"}`))
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if err = publisher.Publish("example_topic", msg); err != nil {
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panic(err)
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}
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}
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