Add to your .travis.yml file.

language: node_js
scripts:
  - npm install codecov -g
after_success:
  - codecov

nyc report --reporter=json > coverage/coverage.json

Repository tokens are required for (a) all private repos, (b) public repos not using Travis-CI, CircleCI or AppVeyor. Find your repository token at Codecov and provide via codecov --token=:token or export CODECOV_TOKEN=":token"

• Q: Why no coverage reports showing up?
  A:Make sure you have enabled source mapping. tsc -p . --sourcemap

Or in your tsconfig.json

{
  "compilerOptions": {
    "sourceMap": true,
  }
}

• Q: Is there a Node.js example?
  A: Yes, codecov/example-node That didn't work? Sorry, looks like you need to use SitePen/remap-istanbul.

1. More documentation at https://docs.codecov.io
2. Configure codecov through the codecov.yml https://docs.codecov.io/docs/codecov-yaml

We are happy to help if you have any questions. Please contact email our Support at [email protected]