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Temporal Nexus Playground

This is a playground for experimenting with Temporal Nexus.

See handler/service.go for some sample Nexus Operations.

Getting started

git clone https://github.com/prasek/nexus-playground
cd nexus-playground

Get latest CLIs

brew install temporalio/brew/tcld
brew install temporal

Choose local dev or Temporal Cloud:

  1. Temporal Cloud Environment
  2. Local Dev Environment

Setup Temporal Cloud Environment

Generate certs if you don't have them

mkdir -p $HOME/nexus-demo/certs
tcld gen ca --org temporal -d 1y --ca-cert $HOME/nexus-demo/certs/ca.pem --ca-key $HOME/nexus-demo/certs/ca.key

Set envrionment config

edit setEnv.sh and set the following to match your config:

export TEMPORAL_ACCOUNT="12345"

# Certs path for namespace creation and workers
export TEMPORAL_TLS_CERT="$HOME/nexus-demo/certs/ca.pem"
export TEMPORAL_TLS_KEY="$HOME/nexus-demo/certs/ca.key"

# Namespace without account suffix
export TEMPORAL_NAMESPACE_CALLER_BASE="my-caller-namespace"
export TEMPORAL_NAMESPACE_HANDLER_BASE="my-target-namespace"
export TEMPORAL_NAMESPACE_REGION="us-east-1"

# Nexus endpoint name that will be used
export NEXUS_ENDPOINT="my-nexus-endpoint"

Create caller and handler namespaces

./cloud-namespaces.sh

Create Nexus endpoint

./cloud-init.sh

Run caller and handler workers

Handler worker:

./cloud-run.sh handler

Caller

./cloud-run.sh caller

Browse to your Nexus Endpoint for instructions to get started

https://cloud.temporal.io/nexus

Done.

Alternate: Local Dev Server Environment

Alternatively, create a local environment with the instructions below.

Local dev server

./local-dev-server.sh

In the output, find the UI address, for example:

+ temporal server start-dev --dynamic-config-value system.enableNexus=true --http-port 7243
CLI 1.1.0 (Server 1.25.0, UI 2.30.3)

Server:  localhost:7233
UI:      http://localhost:8233
Metrics: http://localhost:60411/metrics

Alternate: Use docker-compose

cd docker
docker-compose up

The UI address for this docker-compose.yml is: http://localhost:8080

Note: when shutting down use the --volumes flag to get clean state:

docker-compose down --volumes

Init

Create namespaces and a Nexus endpoint:

./local-init.sh

Run caller and handler workers

Handler worker:

./local-run.sh handler

Caller worker:

./local-run.sh caller

See additional instructions to get started

See getting started and follow the instructions there.

Done.