This page shows example usage of the VersionHistory web service API.

## Platform

List all platforms:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/
```

List all platform and channel combinations:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/all/channels
```

List all versions for all platform and channel combinations.

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/all/channels/all/versions
```

## Version

List all versions for Windows in the `stable` channel:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/win/channels/stable/versions
```

List all versions for Windows in the `stable` channel in ascending order by
version:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/win/channels/stable/versions?order_by=version%20asc
```

List all versions for Windows in `stable`, `beta`, and `dev` channels:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/win/channels/all/versions/?filter=channel<=dev
```

## Release

List all releases for Windows in the `stable` channel:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/win/channels/stable/versions/all/releases
```

List all releases for the version `85.0.4183.83`:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/all/channels/all/versions/85.0.4183.83/releases
```

List all releases for Windows that are currently being served:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/win/channels/all/versions/all/releases?filter=endtime=1970-01-01T00:00:00Z
```

List all releases for Windows in the `stable` channel that reached 100% rollout:

```console
GET https://versionhistory.googleapis.com/v1/chrome/platforms/win/channels/stable/versions/all/releases?filter=fraction=1
```