@causalfoundry/js-sdk/docs/01_targets.md

Causal Foundry WEB SDK (JS/TS)

# Targets

After executing `npm run build`, several targets will be created:

| File          | Environment  | How to load     | Use dynamic loader |
|---------------|--------------|-----------------|------------------- |
| lib.js        | web          | package manager | No                 |
| init.js       | web          | cdn             | No                 |
| lib.loader.js | web          | package manager | Yes                |
| lib.node.js   | nodejs       | package manager | No                 | 

To deploy the library in third party apps, the preferred mechanism is to use `lib.loader.js`. It provides a thin layer that exposes the public javascript API to the application and, internally, it tries to download the latest version of the library (`init.js`) compatible at patch level (according to semantic versioning definition). In case it fails, is will use the fallback version, `lib.js`, which is packaged together. 

CDN url may be customized at configuration level:

```
options = {
    ...
    cdnUrl=<cdn url>
    ...
}

new CfLog(<key, options>)

```

By default, it is `https://cdn.causalfoundry.ai`


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