title: PowerShell and ServiceNow REST API Dot-Walking Not Working
body: <p>I can specify a value in the body (ex: "sys_updated_by"="JSmith") and successfully return that specific record</p>
  
  <pre><code>$URL = "https://domain.service-now.com/api/now/v1/table/sc_item_option_mtom" 
  $headers = @{"AUTHORIZATION"="Basic 12345678900987654321"} 
  $Body = @{ 
  "sysparm_limit"="1" 
  "sys_updated_by"="JSmith" 
  } 
  (Invoke-RestMethod -Headers $headers -Method Get -Uri $URL -Body $Body).result
  
  request_item   : @{link=https://domain.service-now.com/api/now/v1/table/sc_req_item/cc6f59d4c0779100925cad13165a7325; value=cc6f59d4c0779100925cad13165a7325}
  sc_item_option : @{link=https://domain.service-now.com/api/now/v1/table/sc_item_option/d37c591cc0779100925cad13165a7397; value=d37c591cc0779100925cad13165a7397}
  sys_updated_by : JSmith
  sys_tags       : 
  sys_updated_on : 2014-03-27 16:26:24
  sys_id         : 006f555cc0779100925cad13165a7377
  sys_mod_count  : 0
  sys_created_on : 2014-03-27 16:26:24
  sys_created_by : JSmith
  </code></pre>
  
  <p>I cannot return the correct record when I dot-walk with request_item.value (or request_item.link, I haven't found anything that works). I used the value returned from above (cc6f59d4c0779100925cad13165a7325), but the query seems to ignore the whole line "request_item.value"="cc6f59d4c0779100925cad13165a7325" and returns the first record in the table instead</p>
  
  <pre><code>$URL = "https://domain.service-now.com/api/now/v1/table/sc_item_option_mtom"
  $headers = @{"AUTHORIZATION"="Basic 12345678900987654321"} 
  $Body = @{ 
  "sysparm_limit"="1"     
  "request_item.value"="cc6f59d4c0779100925cad13165a7325" 
  } 
  (Invoke-RestMethod -Headers $headers -Method Get -Uri $URL -Body $Body).result
  
  request_item   : @{link=https://domain.service-now.com/api/now/v1/table/sc_req_item/00020bbc6892d900925cda2e3d5bf84a; value=00020bbc6892d900925cda2e3d5bf84a}
  sc_item_option : @{link=https://domain.service-now.com/api/now/v1/table/sc_item_option/f2f14bbc6892d900925cda2e3d5bf8d1; value=f2f14bbc6892d900925cda2e3d5bf8d1}
  sys_updated_by : CHOLMES
  sys_tags       : 
  sys_updated_on : 2014-01-13 23:20:06
  sys_id         : 00020bbc6892d900925cda2e3d5bf84c
  sys_mod_count  : 0
  sys_created_on : 2014-01-13 23:20:06
  sys_created_by : CHOLMES
  </code></pre>