Features:
Competitive pricing
No set-up Charges
Over 99.99% Availability
Free Trial Software
Free Technical Support
Try before you buy
Local or Internet Data
Reseller Opportunities
    Postcode finder using data supplied by royal mail
Updated Daily

Postcode Programming API  Get Full Address from JSON Web Service:


Full Address Search functionality:

  • Postcode is entered by user
  • Software presents a list of addresses at postcode entered
  • Address is selected by user.
  • Full address returned and thus filled in form in software/web page

To get a full address from our JSON Web Service we do the following:

Step 1 Sign up for 30 day free trial

Simply use the "Sign Up for Trial" link at top right of this page to open a trial account.   We will then send you a data key, which is used to identify your account, when using the following service.

 Step 2 Call JSONService/JSONSearchForAddress.aspx for list of address at Postcode

Returns a series of lines, from which the user can select full royal mail address information (Royal mail PAF Database). JSONGetAddressRecord.aspx (Step 2) is then called with the selected address id, to get full address information.

Parameters

Parameter name Description
DataKey Datakey, which is available when account has been created, under the “DataKey” tab of the online account administrator page.
Username Only needed if for internal postcode address use
version Set 1, this allows to change JSON structure without effecting you software
ip IP Address of client. This is optional. We monitor address queries and have had cases where client’s web sites have been used repeatly by one person. Specifying the IP address of each client allows to monitor and block such queries.
Postcode Postcode to find
To retrieve residential property only. To do this simply append “[” to the end of the Postcode.
To retrieve commercial property only. To do this simply append “]” to the end of the Postcode.

Returns

Name Description
errormessage Contains a message if error occurred when searching for Address by Postcode
accountadminpage URL for page to buy more Postcode Address licenses
credits_display_text Status of Postcode Address licenses. This shows the number of users/credit lookups available
found Equals “1” if data has been returned, thus process records below
recordcount Count of records returned
records A series of records, for selection by user.
Each has a unique Identifier

Element : “records”:

Name Description
id ID of address line to later call for compete address (step 3)
l Address line to display for selection, used in next part of search

Example:

Call JSON web service with your data key, which is e-mailed to you when you open an account.  The data key identifies your account and licenses within our system.

www.simplylookupadmin.co.uk/JSONservice/JSONSearchForAddress.aspx?datakey=Your Data Key
&postcode=pe132ql

   Returns

{
   "found":"1",
   "credits_display_text":"Evaluation till 3 Apr 2011",
   "accountadminpage":"https://www.simplylookupadmin.co.uk/WebAccountLogin.aspx?
                              doid=1&coid=3333305462&Pay=yes",
   "errormessage":"",
   "maxresults":"0",
   "recordcount":"7",
   "records":[
       {"l":"Victoria Lodge 18 Victoria Road Wisbech", "id":"31597197_2535693S_F"},
       {"l":"1 Victoria Road Wisbech", "id":"11570811_0S_F"},
       {"l":"2 Victoria Road Wisbech", "id":"34692202_0S_F"},
       {"l":"3 Victoria Road Wisbech", "id":"11570828_0S_F"},
       {"l":"5 Victoria Road Wisbech", "id":"11570842_0S_F"},
       {"l":"46 Victoria Road Wisbech", "id":"34692229_0S_F"},
       {"l":"48 Victoria Road Wisbech", "id":"11570841_0S_F"}
   ]
}

If address returned then <found>=1, else <found>=0,error in <errormessage>

<errormessage> should be displayed if populated

  Please note: Section 3.5 of the terms and conditions state: "The Customer, when using the Postcode Lookup service via Web Service, must make sure each user is identified by a unique Computer name, in each call to the Web Service if used internally”. In simple language this means that each user must be identified by a unique computer name, in username, if used by a company employee

Step 3 Call JSONService/JSONGetAddressRecord.aspx Get Address Record

Gets the full address information given the Address ID listed in previous step.  Now call to get the full address record information for the address line selected by user.

A second version of this call, JSONGetAddressRecordV2.aspx, is provided which returns the ‘unique’ and ‘spare’ field in addition to the normal address fields. See Data Returned below.

Parameters

Parameter name Description
DataKey Datakey, which is available when account has been created, under the “DataKey” tab of the online account administrator page.
version Set 2, this allows us to change XML structure without effecting you software
Username Only needed if for internal postcode address use
ip IP Address of client. This is optional. We monitor address queries and have had cases where client’s web sites have been used repeatly by one person. Specifying the IP address of each client allows to monitor and block such queries.
id Record ID, to identify the Royal mail address record. Royal mail PAF File

Returns

Parameter name Description
data Data regarding the status of the account.  Documented in Step 2 above.
record Full Address information, see "Data returned" section below

Example:

Call JSON web service with your data key.

www.simplylookupadmin.co.uk/JSONservice/JSONGetAddressRecord.aspx?datakey=Your Data Key&id=11570838_0S_F

   Returns

{
   "found":"1",
   "credits_display_text":"Evaluation expires 3 Apr 2011",
   "accountadminpage":"https://www.simplylookupadmin.co.uk/WebAccountLogin.aspx?
                              doid=1&amp;coid=3333305462&amp;Pay=yes",
   "errormessage":"",
   "id":"31567757_2957290S_F",
   "organisation":"Tesco",
   "line1":"Barford Road",
   "line2":"",
   "line3":"",
   "town":"St. Neots",
   "county":"Cambridgeshire",
   "postcode":"PE19 2SA",
   "country":"England",
   "rawpostcode":"PE192SA",
   "deliverypointsuffix":"1N",
   "nohouseholds":"1",
   "smallorg":"Y",
   "pobox":"",
   "mailsortcode":"66140",
   "udprn":"50394326"
}

If address returned then <found>=1, else <found>=0,error in <errormessage>

<errormessage> should be displayed if populated

If used by employee of company (classed as "Internal use")

It is a requirement of the royal mail that if postcode lookup software is used by an employee of a company, then the user must be uniquely identified so we can apply a user count.

Therefore the URL must contain a User ID:

www.simplylookupadmin.co.uk/JSONservice/JSONSearchForAddress.aspx?datakey=Your Data Key
&postcode=pe132ql&username=UserID

and

www.simplylookupadmin.co.uk/JSONservice/JSONGetAddressRecord.aspx?datakey=Your Data Key&id=11570838_0S_F&username=UserID

This will be the datakey beginning with "I"

Section 3.5 of the Terms and Conditions state: "The Customer, when using the Postcode Lookup service via Web Service, must make sure each user is identified by a unique Computer name, in each call to the Web Service if used internally”. In simple language this means that each user must be identified by a unique computer name, in username parameter, if used by a company employee.

Step 4 Testing

Final step is to test, to enable easy testing please use our special test postcodes.


Data Returned:


This type of license returns: (see example below)

  • id  
  • organisation (Company Name)
  • line1
  • line2
  • line3
  • town
  • county
  • postcode
  • country "England","Wales","Northern Ireland","Isle of Man","Channel Islands","Scotland"
  • mailsortcode
  • rawpostcode 
  • unique   (JSONGetAddressRecordV2.aspx)
  • spare   (JSONGetAddressRecordV2.aspx)
  • deliverypointsuffix  
  • nohouseholds 
  • udprn    (Royal mail unique id for each address)

   see Additional Data Returned by Postcode Finder API for more information