How to get Access Token and Access Token Secret from Magento 1.7 REST API

I've registered my application on my magento admin.

already got the Consumer Key and Consumer Secret.

but i have no luck to get the access token and access token secret.

it said

oauth_problem=parameter_absent&oauth_parameters_absent=oauth_consumer_key

i'm testing based on this link

http://www.magentocommerce.com/api/rest/testing_rest_resources.html

What i need to know the answer is

1. What must i fill to Header & Data textfield?
2. How to get the Access Token and Access Secret Token (on Mozilla)?
3. Is there any tutorial step by step to test any REST API?

0) Install https://chrome.google.com/webstore/detail/advanced-rest-client/hgmloofddffdnphfgcellkdfbfbjeloo to your chrome

1) Get an oAuth client tool with command :

sudo gem install oauth

2) Set up the Magento server

3) Get the oAuth tokens

oauth \
  --verbose \
   --query-string \
   --consumer-key v484mnii2jyswedm6uo2cfcjay7uy49snws \
   --consumer-secret koay6845che7giy5lr17gnrhckkbhf8h5 \
   --access-token-url http://www.yourstore.com/magento/oauth/token \
   --authorize-url http://www.yourstore.com/magento/oauth/authorize \
   --request-token-url http://www.yourstore.com/magento/oauth/initiate \
   authorize

RESPOND :

Server appears to support OAuth 1.0a; enabling support.
Please visit this url to authorize:
http://www.yourstore.com/magento/oauth/authorize?oauth_token=ey6fokp0pbzwr1016eb528y5xw1ak5ji

Please enter the verification code provided by the SP (oauth_verifier):
YOUR_CODE_HERE

Response:
  oauth_token_secret: g9kyz8c7zv868d58eav1muih3gxvq763
  oauth_token: aqvlfv9tuexn0mqiydgkaff4ixxg8743c

4) Make the API call

oauth \
    --consumer-key v484mnii2jyswedm6uo2cfcjay7uy49snws \
    --consumer-secret koay6845che7giy5lr17gnrhckkbhf8h5 \ 
    --token aqvlfv9tuexn0mqiydgkaff4ixxg8743c \
    --secret g9kyz8c7zv868d58eav1muih3gxvq763 \ 
    --uri http://www.yourstore.com/magento/api/rest/products \
    debug

try http://www.yourstore.com/magento/api/rest/products

---

Found it the solution

http://www.aschroder.com/2012/04/introduction-to-the-magento-rest-apis-with-oauth-in-version-1-7/

for php

https://gist.github.com/2469319