(Ruby) Hotmail Refresh Access Token (also for Live.com, Outlook.com)

See more OAuth2 Examples

An OAuth2 access token is typically valid for 1 hour. Interaction with the Hotmail account owner via a browser is only needed for getting the initial access token. Once you have it, it can be continually refreshed without user interaction for a long time.

See: How Long can an OAuth2 Access Token be Refreshed?

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# It is assumed we previously obtained an OAuth2 access token.

# Note: Refreshing an access token does not require user-interaction.  
# Only the act of getting the initial access token requires interactive authorization from the Hotmail account owner 
# (i.e. a browser is displayed and the Hotmail account owner authorizes access by the app).

# Once you have the initial access token, it can be refreshed for a long time.
# A typical strategy is to write your application to automatically refresh the access token 
# when authentication fails, and then retry the operation with the new access token.

jsonToken = Chilkat::CkJsonObject.new()
success = jsonToken.LoadFile("qa_data/tokens/hotmail.json")
if (success != true)
    print "Failed to load office365.json" + "\n";
    exit
end

# The access token JSON looks like this:

# {
#   "token_type": "Bearer",
#   "scope": "https://outlook.office.com/SMTP.Send https://outlook.office.com/IMAP.AccessAsUser.All https://outlook.office.com/POP.AccessAsUser.All",
#   "expires_in": 3600,
#   "ext_expires_in": 3600,
#   "access_token": "EwBoA+ ... 7pOYcWr5pFwQgI=",
#   "refresh_token": "M.C546_BL2.0.U.-CkW ... g5CKSlDBQ$$",
#   "id_token": "eyJ0e ... 2iiu5iqBK9n7s3A"
# }

oauth2 = Chilkat::CkOAuth2.new()

# See Microsoft OAuth2 Authorization Endpoint
oauth2.put_TokenEndpoint("https://login.microsoftonline.com/common/oauth2/v2.0/token")

# Replace this with your actual App Registration's Application (client) ID.
oauth2.put_ClientId("CLIENT_ID")

# Get the "refresh_token"
oauth2.put_RefreshToken(jsonToken.stringOf("refresh_token"))

# Send the HTTP POST to refresh the access token..
success = oauth2.RefreshAccessToken()
if (success != true)
    print oauth2.lastErrorText() + "\n";
    exit
end

print oauth2.lastErrorText() + "\n";

print "New access token: " + oauth2.accessToken() + "\n";
print "New refresh token: " + oauth2.refreshToken() + "\n";

# Update the JSON with the new tokens.
jsonToken.UpdateString("access_token",oauth2.accessToken())
jsonToken.UpdateString("refresh_token",oauth2.refreshToken())

# Save the new JSON access token response to a file.
sbJson = Chilkat::CkStringBuilder.new()
jsonToken.put_EmitCompact(false)
jsonToken.EmitSb(sbJson)
sbJson.WriteFile("qa_data/tokens/hotmail.json","utf-8",false)

print "OAuth2 authorization granted!" + "\n";
print "New Access Token = " + oauth2.accessToken() + "\n";