@microsoft/microsoft-graph-client

What is @microsoft/microsoft-graph-client?

@microsoft/microsoft-graph-client is an npm package that provides a client library for accessing Microsoft Graph, which is a unified API endpoint for accessing data across Microsoft 365 services. This package allows developers to interact with various Microsoft services such as Outlook, OneDrive, and Azure Active Directory, among others.

What are @microsoft/microsoft-graph-client's main functionalities?

Accessing User Information

This feature allows you to access information about the authenticated user. The code sample demonstrates how to initialize the client and make a request to the '/me' endpoint to retrieve user information.

const { Client } = require('@microsoft/microsoft-graph-client');
const client = Client.init({
  authProvider: (done) => {
    done(null, 'YOUR_ACCESS_TOKEN');
  }
});
client.api('/me').get().then((user) => {
  console.log(user);
}).catch((error) => {
  console.error(error);
});

Sending an Email

This feature allows you to send an email using the Microsoft Graph API. The code sample demonstrates how to create an email message and send it using the '/me/sendMail' endpoint.

const { Client } = require('@microsoft/microsoft-graph-client');
const client = Client.init({
  authProvider: (done) => {
    done(null, 'YOUR_ACCESS_TOKEN');
  }
});
const mail = {
  message: {
    subject: 'Hello from Microsoft Graph API',
    body: {
      contentType: 'Text',
      content: 'This is a test email sent using Microsoft Graph API.'
    },
    toRecipients: [
      {
        emailAddress: {
          address: '[e-mail]'
        }
      }
    ]
  }
};
client.api('/me/sendMail').post({ message: mail }).then(() => {
  console.log('Email sent successfully');
}).catch((error) => {
  console.error(error);
});

Accessing OneDrive Files

This feature allows you to access files stored in OneDrive. The code sample demonstrates how to list the files in the root directory of the authenticated user's OneDrive using the '/me/drive/root/children' endpoint.

const { Client } = require('@microsoft/microsoft-graph-client');
const client = Client.init({
  authProvider: (done) => {
    done(null, 'YOUR_ACCESS_TOKEN');
  }
});
client.api('/me/drive/root/children').get().then((files) => {
  console.log(files);
}).catch((error) => {
  console.error(error);
});

Other packages similar to @microsoft/microsoft-graph-client

msal

The 'msal' (Microsoft Authentication Library) package focuses on authentication and acquiring tokens for Microsoft services. While it does not provide direct access to Microsoft Graph endpoints, it is often used in conjunction with @microsoft/microsoft-graph-client to handle authentication.

node-outlook

The 'node-outlook' package is designed specifically for interacting with Outlook services. It provides functionalities for accessing mail, calendar, and contacts, similar to what @microsoft/microsoft-graph-client offers but is more focused on Outlook.

README

Microsoft Graph JavaScript Client Library

The Microsoft Graph JavaScript client library is a lightweight wrapper around the Microsoft Graph API that supports both Node and the browser. See the samples folder for code examples. You can also use our TypeScript graph types with this library.

This client library is currently in preview and we would love to hear your feedback! You can file an issue in this repository or write on our uservoice page. We're also trying to add more intellisense support beyond the current typings so we're also especially interested in feedback on the Microsoft Graph TypeScript Typings.

Installation

Node

You can find installation instructions at the Node.js website.

npm install @microsoft/microsoft-graph-client

Include the library in your JavaScript file with const MicrosoftGraph = require("@microsoft/microsoft-graph-client");

Browser

Include lib/graph-js-sdk-web.js in your page.

<script type="text/javascript" src="graph-js-sdk-web.js"></script>

Changelog

0.3.1

• Support for Node.js versions 4 and 5

0.3.0

• Migrated away from typings in client library core and TypeScript sample

0.2.2

• Updated SuperAgent to version 3.3.0

0.2.0

• Breaking change for existing apps - Initialize the client library with MicrosoftGraph.Client.init({...}). See the updated usage section below for code samples.
• Added response handling tests to simulate Graph calls
• Added type declarations file for core client library, which adds intellisense for chained methods.

Usage

Initialize client with access token provider

This client library only handles authentication in the most basic way possible. The application is responsible for refreshing tokens and returning an immediately valid access token in the authentication provider.

var client = MicrosoftGraph.Client.init({
    authProvider: (done) => {
        done(null, "PassInAccessTokenHere"); //first parameter takes an error if you can't get an access token
    }
});

Calling pattern

All calls to Microsoft Graph are chained together starting with client.api(path). Path supports the following formats:

• me
• /me
• https://graph.microsoft.com/v1.0/me
• https://graph.microsoft.com/beta/me
• me/events?$filter=startswith(subject, 'ship')

For more examples of accepted paths, see the test cases.

// Example calling /me with no parameters
client
    .api('/me')
    .get((err, res) => {
        console.log(res); // prints info about authenticated user
    });

Calls should start with .api(), then chain query parameters and end with an action.

// get the names of my top 5 contacts on the beta endpoint
client
    .api('me/people')
    .version("beta") //optional, but recommeded to have before query params
    .top(5)
    .select("displayName")
    .get((err, res) => {
        const topContacts = res.value.map((u) => {return u.displayName});    
        console.log("Your top contacts are", topContacts.join(", "));
    });

The actions(.get(), .put(), etc.) accept a callback or don't pass in a function to get back a Promise.

client
    .api('/me')
    .select("displayName")
    .get()
    .then((res) => {
        console.log(res);
    }).catch((err) => {
        console.log(err);
    });

Actions

.post() and .patch()

The first parameter of .post() and .patch() takes an object that will be sent as the content of the request.

// construct the email object
const mail = {
    subject: "Microsoft Graph JavaScript Sample",
    toRecipients: [{
        emailAddress: {
            address: "[e-mail]"
        }
    }],
    body: {
        content: "<h1>MicrosoftGraph JavaScript Sample</h1>Check out https://github.com/microsoftgraph/msgraph-sdk-javascript",
        contentType: "html"
    }
}

client
    .api('/users/me/sendMail')
    .post({message: mail}, (err, res) => {
        console.log(res)
    })

.del() and .delete()

// delete a OneDrive item
client
    .api(`/me/drive/items/${ONE_DRIVE_FILE_ID_TO_DELETE}`)
    .delete((err, res) => {
        if (err) {
            console.log(err)
            return;
        }
        console.log(res)
    })

.put() and .putStream()

You can upload files to the graph using .put(). For example, this can be used to update a profile picture from an HTML input form. See the browser sample for complete code.

var file = document.querySelector('input[type=file]').files[0];

client
    .api('/me/photo/$value')
    .put(file, (err, res) => {
        if (err) {
            console.log(err);
            return;
        }
        console.log("We've updated your picture!");
    });

Use .putStream() to upload files to Microsoft Graph with Node.js streams.

// Upload a file to OneDrive
let fs = require('fs'); // requires filesystem module
let stream = fs.createReadStream('./logo.png'); //path to local file
client
    .api('/me/drive/root/children/logo.png/content') // path to the destination in OneDrive
    .put(stream, (err) => {
        console.log(err);
    });

.getStream()

Use .getStream() to stream a download from Microsoft Graph.

const fs = require('fs'); // requires filesystem module
client
    .api('/me/drive/root/children/Book.xlsx/content') // path of  source file in OneDrive
    .getStream((err, downloadStream) => {
        let writeStream = fs.createWriteStream('Book.xlsx'); // path to save file to
        downloadStream.pipe(writeStream).on('error', console.log);
    });

Query Parameters

$select, $expand and $orderby

These methods can take a string property, an array of strings or you can pass in each value as a separate argument.

.select("birthday")
.select("department")
// same as
.select("birthday", "department")
// same as
.select(["birthday", "department"])

client
    .api('/me/people')
    .select(["displayName", "department", "title"])
    .get((err, res) => {
        console.log(res)
    })

$top and $skip

These parameters only take a number. Calling them multiple times is not supported.

.top(5)
.skip(10)

$count

Set .count() to true to also return the number of objects in the collection.

.count(true)

$filter

Pass a filter string to .filter() for filtering result collections. Calling filter multiple times will override previous filter strings.

client
    .api("/users")
    .filter("startswith(displayName, 'david')")
    .get((err, res) => {
        console.log(res)
    })

Other API methods

Iterating results

We provide a helper method for iterating through results so you don't have to handle paging with skip tokens. Instead of calling .get(), use .getResultIterator(). Call .next() on the iterator to get the next value and fetch the next page if necessary.

Note: This feature requires ES6 generators, so it is not available on all platforms yet. Check this compatibility info table for details.

let iter = client
    .api('/me/messages')
    .getResultIterator();

// Example function that prints the subject of your messages
function getNextMessage() {
    iter.next().value((err, res) => {
        console.log(res.subject);
        getNextMessage();
    })
}

getNextMessage();

.version()

Passing in a version through .version() has the highest priority. It overrides the Microsoft Graph client default version from .init() and the global library default (currently v1.0).

.query()

You can pass in any URL query parameters as a dictionary or string.

.query({"$select":"displayName"})
// same as 
.query("$select=displayName")
// same as
.select("displayName")

.header() and .headers()

You can pass in additional request headers, either individually or in a dictionary.

.header("someHeaderName", "someHeaderValue")
// or
.headers({"someHeaderName":"someHeaderValue"})

.responseType()

To set a custom response type, use the .responseType(string) method. To see an example, check the browser sample that downloads an image and displays it in an <img> element.

Additional information

Options in MicrosoftGraph.Client.init()

The following are optional parameters to pass to MicrosoftGraph.Client.init(), except for the authProvider:

• defaultVersion - When .version() isn't called, this version is used. (defaults to v1.0)
• debugLogging - Set to true to see the URL of the request printed.
• authProvider - See the usage section for info.
• baseUrl - If you need to call a different URL instead of graph.microsoft.io, specify it as a string here.

Full service response

The full response containing the headers, status code, and body can be obtained by passing a third parameter to the callback.

client
    .api('/me')
    .select("displayName")
    .get((err, res, rawResponse) => {
        console.log(rawResponse.statusCode);
        console.log(rawResponse.header);
    });

Native date objects can be passed in as parameters

var date = new Date();
date.setDate(date.getDate()-365); // ~ 1 year ago

client
    .api('/me')
    .body({"birthday": date})
    .update((err, res) => {
        console.log("Updated my birthday")
    })

Development

These steps are not required to use this library.

npm install installs development dependencies (TypeScript, Mocha, etc.).

Note: If you want to run tsc from the command line, install TypeScript globally with npm install -g typescript or reference ./node_modules/.bin/tsc

npm run build generates lib/ files for node and browser versions.

npm pack bundles the npm module.

npm test runs tests.

To build only browser version:

node node-browserify.js > lib/graph-js-sdk-web.js

Questions and comments

We'd love to get your feedback about the Microsoft Graph JavaScript client library. You can send your questions and suggestions to us in the Issues section of this repository.

Contributing

Please see the contributing guidelines.

Additional resources

• Microsoft Graph website
• Microsoft Graph TypeScript types
• Angular.js sample using the JavaScript client library
• Node.js sample using the JavaScript client library
• Office Dev Center

Copyright

Copyright (c) 2016 Microsoft. All rights reserved.