SerKnight

{
  "access_token":"xxxxxx.xxxxxx.xxxxxx-xxxxx-xxxxx-xxxxx",
  "refresh_token":"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "expires_in":"1800",
  "token_type":"Bearer",
  "xero_tenant_id":"xxxxxx-xxxx-xxxx-xxxx-xxxxxxxx"
}

SerKnight

require 'securerandom'

TOKEN = 'VALID_OAUTH_10A_ACCESS_TOKEN'
CONSUMER_KEY = 'YOUR_CONSUMER_KEY'
SCOPES = 'accounting.transactions offline_access'
OAUTH2_CLIENT_ID = 'YOUR_OAUTH20_CLIENT_ID'
OAUTH2_CLIENT_SECRET = 'YOUR_OAUTH20_CLIENT_SECRET'

SIGNATURE_METHOD = 'RSA-SHA1'
ENDPOINT = 'https://api.xero.com/oauth/migrate'

SerKnight

require 'uri'
require 'json'
require 'net/http'

uri = URI.parse(ENDPOINT)
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

headers = {'Content-Type' =>'application/json', 'Authorization': authorization_header}
request = Net::HTTP::Post.new(uri.request_uri, headers)

SerKnight

require 'uri'

signature_base_string = "POST&" + # Uppercase HTTP method
"#{URI.encode_www_form_component(ENDPOINT)}&" + # Base URI
URI.encode_www_form_component(base_params).to_s # OAuth parameter string

SerKnight

require 'uri'
require 'base64'
require 'openssl'
require 'digest/sha1'

signing_key = File.read('./privatekey.pem')
rsa_key = OpenSSL::PKey::RSA.new signing_key
digest = OpenSSL::Digest::SHA1.new
signature = rsa_key.sign(digest, signature_base_string)

SerKnight

base_params = "oauth_consumer_key=#{CONSUMER_KEY}" +
"&oauth_nonce=#{NONCE}" +
"&oauth_signature_method=#{SIGNATURE_METHOD}" +
"&oauth_timestamp=#{TIMESTAMP}" +
"&oauth_token=#{TOKEN}" +
"&oauth_version=1.0" +
"&tenantType=ORGANISATION"

SerKnight

params = {
  "scope": "offline_access accounting.transactions accounting.settings",
  "client_id": "YOUR_OAUTH2_CLIENT_ID",
  "client_secret": "YOUR_OAUTH2_CLIENT_SECRET"
}

SerKnight

authorization_headers = "OAuth oauth_consumer_key='#{CONSUMER_KEY}',
oauth_nonce='#{NONCE}',
oauth_signature_method='#{SIGNATURE_METHOD}',
oauth_timestamp='#{TIMESTAMP}',
oauth_token='#{TOKEN}',
oauth_version='1.0',
tenantType='ORGANISATION',
oauth_signature='#{oauth_signature}'".gsub("\n",' ')

=> "OAuth oauth_consumer_key='YOUR_CONSUMER_KEY', oauth_nonce='1cbf3d69-d478-4956-b574-a4c6c4a4b2c4', oauth_signature_method='RSA-SHA1', oauth_timestamp='1591214409', oauth_token='VALID_OAUTH_10A_ACCESS_TOKEN', oauth_version='1.0', tenantType='ORGANISATION', oauth_signature='dkkQVrBsTfWqCatt4AmInAtee3Aitmje5jtjjoWl0HZl%2BuriiCjY%2Fe%2FgM9M9XW75DeRXX1GYpeiJI6B0ogGylF9myRTv6KhDpEpiFe5tdaJ0b2LdcWbODHhLP98%f4LKCJVPaS9Y6atX8734qDx1z0hLhVREIDtNFEb%2BpyTpgejeI%3D'"

SerKnight

{ 
   "_type":"export",
   "__export_format":4,
   "__export_date":"2020-02-03T22:17:29.587Z",
   "__export_source":"insomnia.desktop.app:v7.0.6",
   "resources":[ 
      { 
         "_id":"req_1a56b9b120a94264b79018d1ecee95f3",
         "authentication":{ 
            "accessTokenUrl":"https://identity.xero.com/connect/token",

SerKnight

/* Can compare deploying a smart contract to tightly versioning an API.
   Once a smart contract is distrubted & added to ETH it can never be removed.
   Updates to a smart contract, require a re-deployment.
*/

pragma solidity ^ 0.4 .19; 
contract FaceBlock {
  
  // We declare high level variables & types used throughout contract
  mapping(address => uint256) private addressToIndex;