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A Slack Reporting tool built for Cypress but should work with any mocha based framework that is using mochawesome

  • Slack reporter with integration with CircleCI
    • Reports Github/BitBucket Triggering Commit Details
    • Reports CirleCI Build Logs / Status / Artefacts
    • Reports Test Status & Provides Report Links
  • Takes the output of Mochawesome JSON output to determine test result & corresponding slack message
  • Provides a URL link to the Test Artefacts (Mochawesome HTML Test Report / Cypress Video & Screenshots)
  • Programatically run Cypress via a script file with full report generation and Slack Reporting.

For users who are not using CircleCi, you can get a simple report

  • pass --ci-provider none provider flag to provide a simple slack message based on the mochawesome report status
  • Pass --custom-url along with --ci-provider custom to set custom report page url. that will be sent to slack.

For jenkins users

  • pass --ci-provider jenkins provider flag.

Reporting Features

It provides the following distinct message types

  • Build Failure / Cypress error
  • Test Failure
  • Test Success

It provides the following information

  • CircleCI Build Status
  • Test Stats (Total Tests / Passes / Failures)
  • Author with link to Github commit
  • Branch name
  • Pull Request number and link to PR (only if PR)

And the following build/test artefacts

  • CircleCI Build Log button
  • HTML Test report button (only on build success)
  • Videos of test runs (one link per test)
  • Screenshots of failed tests (one link per failing test)

Screenshots showing Slack Alert Format

Alert Samples


Note Please see the pre-requisites folder to current neccessary pre-requisites

  1. Install the app

    $ yarn add cypress-slack-reporter --dev


    $ npm install cypress-slack-reporter --save-dev

  2. Create a Slack app & create an incoming webhook

Set the following environment variables in your localhost or CI configuration.

  • SLACK_WEBHOOK_URL - The full URL you created in the last step

    eg. export SLACK_WEBHOOK_URL=yourWebhookUrlHere

You can optionally set one or more of the following env vars, to utilise a different slack webhook, dependent on the status of your build or test run.

  • SLACK_WEBHOOK_ERROR_URL - For failing CI runs
  • SLACK_WEBHOOK_FAILED_URL - For failing test runs
  • SLACK_WEBHOOK_PASSED_URL - For passing test runs

Any of the 4 env vars above with accept a comma seperated list of webhooks, if you wish to post your slack message to multiple webhooks (one webhook per channel in slack).

eg. export SLACK_WEBHOOK_URL=your1stWebhookUrlHere,your2ndWebhookUrlHere


$ npx cypress-slack-reporter --help

  Usage: index.ts [options]

    -v, --version            output the version number
    --vcs-provider [type]    VCS Provider [github|bitbucket|none] (default: "github")
    --ci-provider [type]     CI Provider [circleci|jenkins|bitbucket|none|custom] (default: "circleci")
    --custom-url [type]      On selected --ci-provider=custom this link will be set to Test Report (default: "")
    --report-dir [type]      mochawesome json & html test report directory, relative to your package.json (default: "mochareports")
    --screenshot-dir [type]  cypress screenshot directory, relative to your package.json (default: "cypress/screenshots")
    --video-dir [type]       cypress video directory, relative to your package.json (default: "cypress/videos")
    --verbose                show log output
    --only-failed            only send message for failed tests
    --custom-text [type]     add additional text to message, wrap message in quotes
    -h, --help               display help for command


Yarn installation Instructions

    yarn add mochawesome --dev
    yarn add mochawesome-merge --dev
    yarn add mochawesome-report-generator --dev
    yarn add cypress-multi-reporters --dev

NPM installation Instructions

    npm install mochawesome --save-dev
    npm install mochawesome-merge --save-dev
    npm install mochawesome-report-generator --save-dev
    npm install cypress-multi-reporters --save-dev
  • Add the following in the base of your project


  "reporter": "cypress-multi-reporters",
  "reporterOptions": {
    "configFile": "reporterOpts.json"


  "reporterEnabled": "mochawesome",
  "mochawesomeReporterOptions": {
    "reportDir": "cypress/reports/mocha",
    "quiet": true,
    "overwrite": false,
    "html": false,
    "json": true


This project is building in CircleCI and can be viewed at the following link

CircleCI Build

See the .circleci folder

  • config.yml - Contains the CircleCI build configuration

The following env vars are read for CircleCI users.

  • CIRCLE_SHA1 - The SHA1 hash of the last commit of the current build
  • CIRCLE_BRANCH - The name of the Git branch currently being built.
  • CIRCLE_USERNAME - The GitHub or Bitbucket username of the user who triggered the build.
  • CIRCLE_BUILD_URL - The URL for the current build.
  • CIRCLE_BUILD_NUM - The number of the CircleCI build.
  • CIRCLE_PULL_REQUEST - Comma-separated list of URLs of the current build’s associated pull requests.
  • CIRCLE_PROJECT_REPONAME - The name of the repository of the current project.
  • CIRCLE_PROJECT_USERNAME - The GitHub or Bitbucket username of the current project.
  • CI_URL="https://circleci.com/api/v1.1/project"
  • CIRCLE_PROJECT_ID - This project ID used in artefact URLS

If you wish to use another CI provider, you can pass any name other than circleci into the CLI flag --ci-provider, which will allow you to enter your own environment variables for CI.

  • CI_URL
  • CI_SHA1,

CircleCI Artifact Notes

CircleCI have recently changed the API for retrieving API's. A URL is generated for artifacts in the format


You can get the CIRCLE_PROJECT_ID by checking https://circleci.com/docs/api/#artifacts-of-a-build

For example. the ID for this project is 177880476, you can see it in the following URL


which will return

[ {
  "path" : "root/app/mochareports/.gitignore",
  "pretty_path" : "root/app/mochareports/.gitignore",
  "node_index" : 0,
  "url" : "https://1-177880476-gh.circle-artifacts.com/0/root/app/mochareports/.gitignore"

In order to correctly construct your artifact URL, you will need to manually retrieve this ID and set it as an env var titled CIRCLE_PROJECT_ID


in windows


or in your CircleCI project's environment page.

There is also another workaround by setting a destination option in store_artifacts job in config.yml (CircleCI).

- store_artifacts:
          path: ~/path/to/cypress/videos
          destination: cypress/videos

will allow you to access artifacts through https://${CI_BUILD_NUM}-${CI_PROJECT_ID}-gh.circle-artifacts.com/0/cypress/videos/some_test_result.mp4

This is what it says on CircleCI Documentation:

Currently, store_artifacts has two keys: path and destination.

path is a path to the file or directory to be uploaded as artifacts.
destination (Optional) is a prefix added to the artifact paths in the artifacts API. The directory of the file specified in path is used as the default.

Scripted Runner

An example script is here as cli/spec/ts

A example of how you can use this script in your project to:-

  • Run Cypress with Mochawesome & junit reporters
  • Merge mochawesome reports with mochawesome-merge
  • Construct a slack alert with the merged report, screenshots and videos

Either with the cli


Or with your own script

rm -rf ./cypress/reports/mocha && npx ts-node script.ts

It can be called with the following options

interface SlackRunnerOptions {
  ciProvider: string;
  vcsRoot: string;
  reportDir: string;
  videoDir: string;
  screenshotDir: string;
  customUrl?: string;
  onlyFailed?: boolean;

And will return a Slack IncomingWebhookResult.


  • [x] provide user ability to provide own CI artefact paths
  • [ ] typescript s3 uploader scripts and add to CLI
    • [x] tsified
    • [x] able to run in isolation
    • [x] mock aws-sdk s3 upload function
    • [x] tests
    • [x] retrieve s3 links for test report/artefacts and inject into the slack report
    • [x] uploading artefacts to s3
    • [ ] add to CLI
    • [ ] programatically run
    • [ ] Add into main slack-reporter script
    • [ ] provide CLI options to provide paths/credentials
  • [x] Programatically run
    • [x] provide ability to be programatically run via a script
    • [x] provide example
    • [x] add usage instructions to readme
    • [x] test example
    • [x] compile
  • [x] Migrate Slack mock to seperate module available at npm - slack-mock-typed
  • Additional CI providers
    • [x] Jenkins


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