Google drive API

The use case shows the process of creating "i2rest.doc" file on "i2restexample" user Google Drive using I2Rest Client request with Oauth2 Authorization code flow. Lets walk step by step through our example with creating "i2rest.doc" file on "i2restexample" user Google Drive

Preparations

a)At the very beginning your application should be registered as a client (obtaining Device ID and Device Password) on Google (see details).

b) Create *SYSTEM Certificate Store and add Google.com SSL CA .

i2Rest Client command composing

Composing i2Rest Client we need:

to set request method and API endpoint to values that are specified in the API method description;

I2REST COMMAND(*POST)                                       
       URL('https://www.googleapis.com/drive/v3/files') 

to specify properly configured on Preparations step (b) Certificate_Store to be able to work with SSL secured resource;

       DCMCLIENT(<DCM client name>)  

to specify obtained on Preparations step (a) requisites;

       AUTHID('Device ID')                   
       AUTHPW('Device password)                       
       AUTHURL('https://accounts.google.com/o/oauth2/v2/auth  
               ')                                             
       TOKENURL('https://oauth2.googleapis.com/token')        
       SCOPE('https://www.googleapis.com/auth/drive.file')  

All the necessary parameters are specified, it's time to execute the complete command.

I2REST COMMAND(*POST)                                       
       URL('https://www.googleapis.com/drive/v3/files')     
       BODY(*N '{"name":"i2rest.doc"}' 
            'application/json' *YES 1208)
       OUTPUT(*BOTH)  
       AUTHMETHOD(*OAUTH2D)                                      
       DCMCLIENT(MYCLIENT)
       RECVLOG('/home/USRX/recieved.log')                           
       SENTLOG('/home/USRX/sent.log')                                                             
       TOKENS('/tokens/tokens.usrspc')
       AUTHID('<Device ID>')                 
       AUTHPW('<Device password>')                   
       AUTHURL('https://oauth2.googleapis.com/device/code') 
       TOKENURL('https://oauth2.googleapis.com/token')      
       SCOPE('https://www.googleapis.com/auth/drive.file')  

Device flow

After the command was executed, I2Rest Client starts performing Oauth2 Authorization code flow. Steps (A), (B) of the flow are taken behind the scene. Step (C) will be displayed on your green screen. Follow provided link.

Find yourself on device connection page. Proceed with "Next" button, and this is step (D).

Grant access to requested scope.

Here we are!

Steps (E), (F) of the flow does not envolve end user.

Checking the result!

We didn't make a screenshot with i2rest.doc on our example Google Drive, but you can check your own file right now. Also take a look on the result of the authorized request to Google Drive APi in joblog.

Approved scopes https://www.googleapis.com/auth/drive.file     
Token type Bearer                                              
Token expires in 3599                                          
Server response (status 200, shown 128 bytes of 128):          
{                                                              
 "kind": "drive#file",                                         
 "id": "1qH1yvlK1WF-C8oi9v3Nf8miUTuz_1Tvr",                    
 "name": "i2rest.doc",                                         
 "mimeType": "application/msword"                              
}