Ruby

Dropbox Refresh OAuth2 Access Token

See more Dropbox Examples

Demonstrates how to mint a new access token using the refresh token obtained when originally getting the OAuth2 access token. Ruby

require 'chilkat'

success = false

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

http = Chilkat::CkHttp.new()

# Implements the following CURL command:

# curl -X GET https://api.dropbox.com/oauth2/token \
#     -d grant_type=refresh_token \
#     -d refresh_token=<YOUR_REFRESH_TOKEN> \
#     -u <YOUR_APP_KEY>:<YOUR_APP_SECRET>

# Use the following online tool to generate HTTP code from a CURL command
# Convert a cURL Command to HTTP Source Code

http.put_Login("DROPBOX_APP_KEY")
http.put_Password("DROPBOX_APP_SECRET")

# Get the refresh token from the JSON we saved when originally getting the access token.
# (See Get Dropbox OAuth2 Access Token w/ Refresh Token
json = Chilkat::CkJsonObject.new()
success = json.LoadFile("qa_data/tokens/dropbox.json")
if (success == false)
    print json.lastErrorText() + "\n";
    exit
end

req = Chilkat::CkHttpRequest.new()
req.AddParam("grant_type","refresh_token")
req.AddParam("refresh_token",json.stringOf("refresh_token"))

req.put_HttpVerb("POST")
req.put_ContentType("application/x-www-form-urlencoded")

resp = Chilkat::CkHttpResponse.new()
success = http.HttpReq("https://api.dropbox.com/oauth2/token",req,resp)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

sbResponseBody = Chilkat::CkStringBuilder.new()
resp.GetBodySb(sbResponseBody)

jResp = Chilkat::CkJsonObject.new()
jResp.LoadSb(sbResponseBody)
jResp.put_EmitCompact(false)

print "Response Body:" + "\n";
print jResp.emit() + "\n";

respStatusCode = resp.get_StatusCode()
print "Response Status Code = " + respStatusCode.to_s() + "\n";
if (respStatusCode >= 400)
    print "Response Header:" + "\n";
    print resp.header() + "\n";
    print "Failed." + "\n";
    exit
end

# Sample JSON response:
# (Sample code for parsing the JSON response is shown below)

# {
#   "access_token": "sl.AC75WPYRqOi0mxcRqlimbV9FKHu04biz5qHwatG3MTgzFK7kLrGVlM9EgP4603tE7bWw0s1rMbTKiHsf37TUshPYvq-3r0qeBr_PrZIAibN8XOQicvboiOnqx6JrDekq-w8D-tE",
#   "token_type": "bearer",
#   "expires_in": 14400
# }

access_token = jResp.stringOf("access_token")
print "New Access Token: " + access_token + "\n";

# Perhaps update our Dropbox JSON file with the new access token.
# (The existing refresh token does not change, and can be used over and over to mint new access tokens.)
json.UpdateString("access_token",access_token)

json.WriteFile("qa_data/tokens/dropbox.json")