# TypeScript typings for API Discovery Service v1

Provides information about other Google APIs, such as what APIs are available, the resource, and method details for each API.
For detailed description please check [documentation](https://developers.google.com/discovery/).

## Installing

Install typings for API Discovery Service:

```
npm install @types/gapi.client.discovery-v1 --save-dev
```

## Usage

You need to initialize Google API client in your code:

```typescript
gapi.load('client', () => {
  // now we can use gapi.client
  // ...
});
```

Then load api client wrapper:

```typescript
gapi.client.load('https://discovery.googleapis.com/$discovery/rest?version=v1', () => {
  // now we can use:
  // gapi.client.discovery
});
```

```typescript
// Deprecated, use discovery document URL, see https://github.com/google/google-api-javascript-client/blob/master/docs/reference.md#----gapiclientloadname----version----callback--
gapi.client.load('discovery', 'v1', () => {
  // now we can use:
  // gapi.client.discovery
});
```



After that you can use API Discovery Service resources: <!-- TODO: make this work for multiple namespaces -->

```typescript

/*
Retrieve the description of a particular version of an api.
*/
await gapi.client.discovery.apis.getRest({ api: "api", version: "version",  });

/*
Retrieve the list of APIs supported at this endpoint.
*/
await gapi.client.discovery.apis.list({  });
```