Typescript typings for Google API

Google API Typescript definitions

Installing

First you need to install typings:

npm install typings --save 

Then install typings for Google API client:

typings install gapi.client --save 

And finally install typings for selected Google API:

typings install gapi.client.<api_name> --save 

Usage

You need to initialize Google API client in your code:

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

Then load api client wrapper:

gapi.client.load('<api_name>', '<api_version>', () => {
    // now we can use gapi.client.adexchangebuyer
    // ... 
});

Don't forget to authenticate your client before sending any request to resources:

// declare client_id registered in Google Developers Console
var client_id = '',
    scope = [     
        // <api_scope>
    ],
    immediate = true;
// ...

gapi.auth.authorize({ client_id: client_id, scope: scope, immediate: immediate }, authResult => {
    if (authResult && !authResult.error) {
        /* handle succesfull authorization */
    } else {
        /* handle authorization error */
    }
});            

After that you can use Ad Exchange Buyer API resources:

gapi.client.<api_name>.<api_resource>.<method name>({ /* method parameters */ })
    .then(response => { /* handling response */ });