publisher

This service is apart of my pub-sub services, which connects to my other app, the subscriber service. Pub/Sub allows services to communicate asynchronously, with latencies on the order of 100 milliseconds. When I push data from this service, my subscriber recieves the data, puts in in mongoDB and returns a message.

Get started

• Install/update dependencies go get -u
• Run make proto, this will also send the proto definitions to https://buf.build as a commit.
• Run the application: make run, this will run on port 8081
• Make sure the subscriber service is also running, this should be visibil on port 8082

Dapr

Install and configure the dapr CLI:

brew install dapr/tap/dapr-cli
dapr init

Buf

Add Buf API key to .netrc file

machine buf.build password <your Buf API key>
machine go.buf.build login <your Buf username> password <your Buf API key>

Postman Setup

• Go to New, select gRPC Request
• Call localhost:8080
• Select the proto definitions file to put into the methods input
• Make sure server reflection is enabled in methods
• You can generate example JSON Messages (this is particularly useful when using the CREATE method, make sure the ID field isn't present as this is being filled in automatically when an entry is created)