How to see if email is in contact list

[ElanD]

Is there an API call to see whether or not an email address is in a particular contact list? For now I'm calling /members on a list and then checking for the email address in the XML. But this won't scale nicely for lists with a large number of members. 

Thanks,

~Elan

[Ryan_D · Accepted solution]

Hey Elan,

You can always do a search for the contact and do get on that particular contact and check to see if the list ID is inside of a ContactList inside of that contact. 

[JeffryP]

Pre apologies, I'm not looking at the xml right now, but some clarity and perhaps I'll need a new thread to clarify this & similar newbi Q's.

Does the contact xml contain a "contactlist" that contains list ID's?

I would have assumed that the contact contains a <lists> tag containing mailing list numbers 3,6,12,42...

TIA

[Ryan_D]

Hey,

By doing a get to a specific contact you will get information back such as:

<?xml version='1.0' encoding='UTF-8'?>
<entry xmlns="http://www.w3.org/2005/Atom">
  <link href="/ws/customers/joesflowers/contacts/22199" rel="edit" />
  <id>http://api.constantcontact.com/ws/customers/joesflowers/contacts/22199</id>
  <title type="text">Contact: joe@example.com</title>
  <updated>2009-11-20T20:41:19.243Z</updated>
  <author>
    <name>Constant Contact</name>
  </author>
  <content type="application/vnd.ctct+xml">
    <Contact xmlns="http://ws.constantcontact.com/ns/1.0/" id="http://api.constantcontact.
    com/ws/customers/joesflowers/contacts/22199">
      <Status>Active</Status>
      <EmailAddress>joe@example.com</EmailAddress>
      <EmailType>HTML</EmailType>
      <Name>Customer Joe</Name>
      <FirstName>Joe</FirstName>
      <MiddleName></MiddleName>
      <LastName>Smith</LastName>
      <JobTitle></JobTitle>
      <CompanyName></CompanyName>
      <HomePhone></HomePhone>
      <WorkPhone></WorkPhone>
      <Addr1></Addr1>
      <Addr2></Addr2>
      <Addr3></Addr3>
      <City></City>
      <StateCode>MA</StateCode>
      <StateName>Massachusetts</StateName>
      <CountryCode>us</CountryCode>
      <CountryName>United States</CountryName>
      <PostalCode>02154</PostalCode>
      <SubPostalCode>1781</SubPostalCode>
      <Note></Note>
      <CustomField1></CustomField1>
      <CustomField2></CustomField2>
      <CustomField3></CustomField3>
      <CustomField4></CustomField4>
      <CustomField5></CustomField5>
      <CustomField6></CustomField6>
      <CustomField7></CustomField7>
      <CustomField8></CustomField8>
      <CustomField9></CustomField9>
      <CustomField10></CustomField10>
      <CustomField11></CustomField11>
      <CustomField12></CustomField12>
      <CustomField13></CustomField13>
      <CustomField14></CustomField14>
      <CustomField15></CustomField15>
      <ContactLists>
        <ContactList id="http://api.constantcontact.com/ws/customers/joesflowers/lists/3">
          <link xmlns="http://www.w3.org/2005/Atom" href="/ws/customers/joesflowers/lists/3" rel="self" />
          <OptInSource>ACTION_BY_CONTACT</OptInSource>
          <OptInTime>2009-11-20T20:41:06.595Z</OptInTime>
        </ContactList>
      </ContactLists>
      <Confirmed>false</Confirmed>
      <InsertTime>2009-11-20T20:41:06.593Z</InsertTime>
      <LastUpdateTime>2009-11-20T20:41:19.243Z</LastUpdateTime>
    </Contact>
  </content>
  <source>
    <id>http://api.constantcontact.com/ws/customers/joesflowers/contacts</id>
    <title type="text">Contacts for Customer: joesflowers</title>
    <link href="contacts" />
    <link href="contacts" rel="self" />
    <author>
      <name>joesflowers</name>
    </author>
    <updated>2009-11-20T20:45:44.199Z</updated>
  </source>
</entry>

 Which you would fine a ContactLists node which is an array of ContactList. 

You can read more about it here.