cooco119 / example-bazel-nestjs-local-package-dependency

example bazel setup with nestjs + local package import

Important points

Should install all package.jsons in WORKSPACE file

# WORKSPACE
yarn_install(
    # Name this npm so that Bazel Label references look like @npm//package
    name = "npm_shared",
    package_json = "//shared:package.json",
    yarn_lock = "//shared:yarn.lock",
)

# customize yarn_install names for each package
yarn_install(
    # Name this npm so that Bazel Label references look like @npm//package
    name = "npm_server_api",
    package_json = "//server/api:package.json",
    yarn_lock = "//server/api:yarn.lock",
)

Imported package should use ts_library function, not ts_project

• There might be a way using ts_project, but it seems that it needs package.json containing all dependencies of packages in root directory (See https://github.com/dataform-co/dataform).

• So this example used ts_library as imported package.

• IMPORTANT You should write package_name attribute with the same package name in package.json, as package_name = "shared" in this example.

• See shared/BUILD.bazel

Importing package should add imported package as {workspace_name}/{package_name} in package.json dependency

In this example, server/api package imported shared as below in package.json

"dependency": {
    ...,
    "bazel_nestjs_with_shared/shared": "file:../../shared",
    ...
}

Importing package should use ts_project and import bazel package properly

See server/api/src/BUILD.bazel.

You can import in both ways as //shared or //shared:shared.

Should sync Incremental and SourceMap option in tsconfig.json and ts_project in BUILD.bazel

Should use ts_config function in BUILD.bazel to use NestJS's tsconfig extending feature - tsconfig.build.json -> tsconfig.json

• See ts_config and import as :tsconfig