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title: Labs layout: default toc: true nav: rule

Bazel nodejs Labs

This package contains experimental code which isn't at the same quality or stability standard as our main packages.

By using code in Labs, we trust that you understand:

• It might be deleted at any time
• We offer no support guarantees for using it
• Breaking changes can happen in any release
• We could release with bugs or other brokenness
• Documentation is sparse

protobufjs_ts_library

USAGE

Wraps https://github.com/dcodeIO/protobuf.js for use in Bazel.

ts_proto_library has identical outputs to ts_library, so it can be used anywhere a ts_library can appear, such as in the deps[] of another ts_library.

Example:

load("@npm//@bazel/typescript:index.bzl", "ts_library", "ts_proto_library")

proto_library(
    name = "car_proto",
    srcs = ["car.proto"],
)

ts_proto_library(
    name = "car",
    deps = [":car_proto"],
)

ts_library(
    name = "test_lib",
    testonly = True,
    srcs = ["car.spec.ts"],
    deps = [":car"],
)

Note in this example we named the ts_proto_library rule car so that the result will be car.d.ts. This means our TypeScript code can just import {symbols} from './car'. Use the output_name attribute if you want to name the rule differently from the output file.

The JavaScript produced by protobuf.js has a runtime dependency on a support library. Under devmode (e.g. ts_devserver, karma_web_test_suite) you'll need to include these scripts in the bootstrap phase (before Require.js loads). You can use the label @npm//@bazel/labs/protobufjs:bootstrap_scripts to reference these scripts in the bootstrap attribute of karma_web_test_suite or ts_devserver.

To complete the example above, you could write a karma_web_test_suite:

load("@npm//@bazel/karma:index.bzl", "karma_web_test_suite")

karma_web_test_suite(
    name = "test",
    deps = ["test_lib"],
    bootstrap = ["@npm//@bazel/labs/protobufjs:bootstrap_scripts"],
    browsers = [
        "@io_bazel_rules_webtesting//browsers:chromium-local",
        "@io_bazel_rules_webtesting//browsers:firefox-local",
    ],
)

ATTRIBUTES

(Name, mandatory): A unique name for this target.

(List of labels): proto_library targets

Defaults to []

(String): Name of the resulting module, which you will import from. If not specified, the name will match the target's name.

Defaults to ""

ts_proto_library

USAGE

ATTRIBUTES

(Name, mandatory): A unique name for this target.

(Label, mandatory) The dependencies of this attribute must provide: ProtoInfo