---
Title: Publish to npm
---

# Create a new library

New library can be created using standard `ng` command

e.g. if we would like to create `aca-new-lib` we need to run the following:

```
ng generate @schematics/angular:library aca-new-lib
```

# Publish library

## Build library
In order to publish new library, we need to build it first. You need to add build of your library to `build-libs` command in `package.json`

```
"build-libs": "ng build aca-shared && ng build aca-new-lib",
```

## Update publish script
If we would like to publish the new library we need to update `scripts/ci/npm/publish-libs.sh`

The only thing that need to be done is to update `PROJECTS` variable by adding your library name i.e.

```
PROJECTS=(
    'aca-shared',
    'aca-new-lib'
);
```
# Caveats
- The versions of libraries are updated automatically by the script (should not be done manually)
- In travis setting you can find `PUBLISH_PROJECTS` variable, which can be used for enabling dry mode when running the publish command