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Echo At Time

Tom Grossman

Running with docker-compose

  1. clone repo https://github.com/tomgrossman/echo_at_time.git
  2. cd into the folder
  3. run docker-compose up -d --build

Sending messages

  • You can use any REST application (like postman, curl, etc...).
  • The server is listening on port 3000
  • Example for curl POST message:
curl -X POST \
  http://localhost:3000/echoAtTime \
  -H 'Content-Type: application/json' \
  -d '{
	"time": 1577836800000,
	"message": "this is a test message"
}'

This message will be printed at "2020-01-01"

Reading messages

  • The server is printing the messages to the console
  • In order to read the console, use:
docker logs echo-node -f

Additional Information

  • In order to test the persistence:
    1. POST message
    2. Stop node server with docker rm -f echo-node
    3. Run the node after the time of the message has passed with docker-compose up -d
    4. The app will print all messages that should have been printed while the app was down