RESO Web API Overview
The documentation we provide does not fully document the RESO Web API itself; rather, it's meant to get you up and running on our implementation of the standard.
- Making Requests
- Response Description
The RESO Web API endpoint is at:
Because our RESO Web API shares the same authentication and authorization infrastructure as the Spark API, you can use the same API keys provided for the Spark API to access the RESO Web API endpoints.
The method for obtaining authorization from end users and making authenticated requests is identical to accessing the Spark API directly. See our authentication documentation for more information.
3. Making Requests
Our RESO Web API provides the following distinct endpoints:
Metadata is accessible at:
Using the Property resource as our example, all properties can be retrieved at:
An individual property can be retrieved at:
For example, if a listing's
20100000000000000000000000, your request should be:
Property Media, Rooms and other related resource records, FBS recommends utilizing the $expand parameter. All allowed expansions are listed in the
NavigationProperty entities in your feed metadata (see above).
If desired, these related resource records can instead be accessed as a subresource of each
Property record. Here are a couple examples:
Each service supports some or all of the request parameters documented on our RESO request parameters page.
This OData service only responds to JSON format except for the
$metadata endpoint, which returns XML.
OData specifications that the RESO Web API is built upon dictate that certain data attributes and values can't contain spaces, non-alpha-numeric characters, etc. When they do, the values need to be encoded. For this reason some custom field names are encoded, and the corresponding human-readable names can be looked up in the metadata. The
EntityType Name="CustomFields" section of the metadata will list all custom field names and their human readable translations. Here's an example of a metadata entry that connects an encoded name and a display name:
<Property Name="Documents_co_Exclusive_sp_Right_sp_to_sp_Sell_sp__lbracket_private_rbracket_" Type="Edm.Boolean"> <Annotation Term="MLS.OData.Metadata.LocalName" String="Documents Exclusive Right to Sell [private]"/> </Property>