upload artifacts in slack channel

gistfile1.txt

    - export NOW=$(date "+%Y/%m/%d_%H:%M:%S")
    - ./gradlew AssembleRelease
    - cd app/build/outputs/apk/release/
    - |
      curl \
        -F token="${SLACK_TOKEN}" \
        -F channels="${SLACK_CHANNEL}" \
        -F initial_comment="Hey people! Here is the APK of app. Publish date ${NOW}" \
        -F "[email protected]" \
        -H "Authorization: Bearer ${SLACK_TOKEN}" \
        https://slack.com/api/files.upload