Technical Project for Salad Technologies

Original problem description is found here: https://saladtech.notion.site/Salad-s-Technical-Interview-2e7e8c19c4284c61975fd3d4eba3bfbe

Configuration

Configuration is managed with the following environment variables

SALAD_MESSAGEROUTER_URL

  The URL for the message router.

  Example: data.salad.com:5000

  Default:

  Required: Yes

SALAD_MESSAGEROUTER_TCPTIMEOUT

  Timeout control for open TCP connections. If set to 0, no timeout is set

  Example: 30s

  Default: 1m

  Required: No

SALAD_MESSAGEROUTER_MAXRETRY

  Maximum number of times to try opening a connection to the server before exiting.   -1 means there's no maximum.

  Example: 10

  Default: 5

  Required: No

SALAD_MESSAGEROUTER_RETRYSLEEP

  The starting duration to wait between retrying TCP connections. This value will increase exponentially for each retry.

  Example: 3s

  Default: 1s

  Required: No

SALAD_LOG_LEVEL

  Level for the logger   Available log level values are as follows:

• Debug: 0
• Info: 1
• Warn: 2
• Error: 3
• Fatal: 4
• Panic: 5

  Example: 2

  Default: 1

  Required: No

Execute Unit Tests

go test ./...

Build

go build ./cmd/processor/main.go

Run

go run ./cmd/processor/main.go

Get Started

For just checking out the functionality first start up the server:

go run ./cmd/server/main.go

Then set your server URL and run the processor:

# linux
SALAD_MESSAGEROUTER_URL=127.0.0.1:5000 go run ./cmd/processor/main.go

# powershell
$env:SALAD_MESSAGEROUTER_URL="127.0.0.1:5000"; go run ./cmd/processor/main.go

Notes

1. The problem says the float64 fields have a size of 4 bytes. This obviously doesn't work, but the example does contain enough bytes.
2. I made a simple TCP server which just gives a valid response. It can be run using: go run ./cmd/server/main.go. Then set the SALAD_MESSAGEROUTER_URL environment variable to 127.0.0.1:5000.