Slack Slash Command Example

This repo demonstrates 3 approaches to handling Form POSTs in a similar way to handling JSON POSTs in a Spring Boot app.

Check out (and please vote for) the Spring Boot Jira issue that would make all 3 of these approaches unnecessary.

For a deeper explanation, read the blog post about it.

You can also see a lively conversation that kicked all this off on r/java.

Build & Run

mvn clean install
java -jar slack-slash-command-example-0.0.1-SNAPSHOT.jar 

Exercise

The follow examples use HTTPie

In each case, you should get back the same parameters as a JSON object.

Automatic HttpMessageConverter approach

http -f POST localhost:8080/api/v1/slack3 \
  token=token team_id=team_id team_domain=team_domain channel_id=channel_id \
  channel_name=channel_name user_id=user_id user_name=user_name \
  command=command text=text response_url=response_url

HandlerMethodArgumentResolver approach

http -f POST localhost:8080/api/v1/slack2 \
  token=token team_id=team_id team_domain=team_domain channel_id=channel_id \
  channel_name=channel_name user_id=user_id user_name=user_name \
  command=command text=text response_url=response_url

HttpMessageConverter approach - custom

http -f POST localhost:8080/api/v1/slack \
  token=token team_id=team_id team_domain=team_domain channel_id=channel_id \
  channel_name=channel_name user_id=user_id user_name=user_name \
  command=command text=text response_url=response_url