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From golang-boost
Constructs portable pub/sub topics and subscriptions via gocloud.dev/pubsub, enabling provider swapping (GCP, Kafka, AWS SNS, in-memory) through URL config without code changes.
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/golang-boost:boost-factory-gocloud-pubsubThis skill is limited to the following tools:
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**REQUIRED BACKGROUND:** `boost-start`, `boost-wrapper-config`.
Constructs a Google Cloud Pub/Sub client using the boost factory wrapper, covering NewClient, lifecycle (defer Close), and sharing the client between publisher and subscriber adapters.
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REQUIRED BACKGROUND: boost-start, boost-wrapper-config.
factory/contrib/gocloud.dev/pubsub/v0/examples/pubsub/main.goimport gcppubsub "github.com/xgodev/boost/factory/contrib/gocloud.dev/pubsub/v0"
topic, err := gcppubsub.NewTopic(ctx)
if err != nil { log.Fatalf("topic: %v", err) }
defer topic.Shutdown(ctx)
sub, err := gcppubsub.NewSubscription(ctx)
defer sub.Shutdown(ctx)
Configure topic/subscription URLs (gcppubsub://..., kafka://..., awssns:///..., mempubsub://...) under boost.factory.gocloud.pubsub.* (override BOOST_FACTORY_GOCLOUD_PUBSUB_*).
| Reach for gocloud.dev | Reach for native (boost-factory-pubsub, boost-factory-kafka, ...) |
|---|---|
| Want to swap providers via URL config without code change | Committed to one provider; want full feature surface |
Tests use mempubsub:// for in-process fakes | Production-only path; tests run against real broker |
The native factories expose more provider-specific knobs. gocloud.dev exposes the lowest-common-denominator API.
| Red flag | Fix |
|---|---|
pubsub.OpenTopic(ctx, url) directly | gcppubsub.NewTopic(ctx) |
URL via os.Getenv | BOOST_FACTORY_GOCLOUD_PUBSUB_* |
Forgetting defer topic.Shutdown(ctx) | Add it |