https://github.com/neutonfoo/go-pubsub

Simple demo for Google Cloud Pub/Sub in Go
https://github.com/neutonfoo/go-pubsub

Last synced: 7 months ago
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Simple demo for Google Cloud Pub/Sub in Go

README

# Go Pubsub

Basic implementation of Google Cloud's Pub/Sub in Go. Subscriber consumes 5 messages before exiting.

Based on https://cloud.google.com/pubsub/docs/quickstart-client-libraries

## Set Up

Create Project and enable Pub/Sub API for the project.

Install the Google Cloud SDK `https://cloud.google.com/sdk/docs/quickstart-macos`.

Install the Google Cloud Go Libraries `go get -u cloud.google.com/go/pubsub`.

Create Server Account under Project with roles: "Pub/Sub Publisher" and "Pub/Sub Subscriber". Generate key and save into `keys` folder.

Create topic and subscriber

```sh
# Create topic
gcloud pubsub topics create my-topic

# Create subscriber and subscribe to topic
gcloud pubsub subscriptions create my-sub --topic my-topic
```

## Executing

Open two Terminal windows and export `GOOGLE_APPLICATION_CREDENTIALS` and `PROJECT`.

```sh
cd go-pubsub
export GOOGLE_APPLICATION_CREDENTIALS=$(pwd)/keys/keys.json
export PROJECT=`gcloud config get-value project`
```

First execute subscriber

```sh
go run subscriber/sub.go
```

Then execute publisher

```sh
go run publisher/pub.go
```