# GMPay Daily Report System

## Business Goal:
At a specific timimg everyday, we hope to see yesterday system status/statistics in a skype channl.
**The specific timing, report details, skype channel should be configable.** i.e. if we want to add/remove/update the daily report, all we need is updating config file, such as report config file. No need to update the code base.

For example, We would like to see GMPay daily report:
- yesterday total 5xx
- source: CloudWatch/Prometheus
- yesterday highest rps
- source: CloudWatch Insght
- yesterday total request
- source: CloudWatch/Prometheus
- yesterday total OA
- source: RepDB
- yesterday total EA
- source: RepDB

**Example of Skype msg:**

**PS. This daily report application not only could support to GMPay but also to the other mdaq system, such as payment or AH. It would help us to management the daily report of different mdaq system easily and we fully control it.**

## Components
1. Notification channel part. Support:
- Skype webhook
- Slack webhook
2. Resource part. Support:
- DB query
- CloudWatch metric
- CloudWatch Insight
- Prometheus
3. Report generator part, Support
- Report template
- scheduling
- input needed value from different resource
- output to different notification channel

## Configs
### Report config files (yaml)

- reportName: gmpay-daily-report
- invokeTimestamp: ' * * * 10 *'
- input:
  - fieldName: highestRPS 
    sourceId: Prod-GMPay-LogInsight
    params:
      script: stats count(*) as rps ...
  - fieldName: 5xxCount
    sourceId: Prod-CloudWatch
    params:
      scope: xxx
  - fieldName: OACount
    sourceId: Prod-Repdb
    params:
      script: select count(*) from ...
      scriptFilePath: /path/to/sql/script.sql
- output:
    - channelId: Log-Alert
    - messageFormat: |-
        GMPay Daily Report:
          Highest RPS: ${highestRPS}
          5xx Count: ${5xxCount}
          OA Count: ${OACount}

### Source Config (yaml)

- sourceId: Prod-Repdb
  type: postgreSQL
  url:
  user:
  password:
  database:
- sourceId: Prod-GMPay-LogInsight
  type: CloudWatchInsight
  logGroups:
  - group_1
  - group_2
- sourceId: Prod-GMPay-Prometheus
  type: Prometheus
- sourceId: Prod-CloudWatch
  type: CloudWatchMetrics
  

### Notification Channel Config (yaml)

- channelId: Log-Alert
  type: skype
  webhook: https://webhook.to/log-alert-channel
- channelId: Support-Alert
  type: slack
  webhook: https://webhook.to/support-alert-channel