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Data query - Translate Eikon Excel functions into DDS API Calls

I need to convert an Excel file using Eikon to an application using the DDS API.

My problem currently is figuring out what instrument/identifier types to use to get for example moody ratings for Australia ten-year bonds.

The following is an example of the current Excel function:
TR(“AU10YT=RR”,"TR.FiIssuerMoodysRating","RatingScope=DMS")

I looked at the documentation but it seems to be more around the technical side of building up the query and the fields available. (https://developers.thomsonreuters.com/datascope-select-dss/datascope-select-rest-api/docs?content=6072&type=documentation_item)

My question is more data related - where do I find this data within DDS?

eikondss-rest-apidatascope-selectdssexcel
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Hi @coenraad

Thank you for your participation in the forum.

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Thanks,

AHS

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Thanks,

AHS

1 Answer

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Refer to Data Item Browser, TR.FiIssuerMoodysRating is Issuer Moodys Long Rating.

You can get Moodys Issuer Long Rating from DSS by using the Composite report template. The endpoint is Extractions/Extract. The request is:

{
    "ExtractionRequest": {
        "@odata.type": "#ThomsonReuters.Dss.Api.Extractions.ExtractionRequests.CompositeExtractionRequest",
        "ContentFieldNames": [
          "Instrument ID",
          "Moodys Issuer Long Rating"
        ],
        "IdentifierList": {
            "@odata.type": "#ThomsonReuters.Dss.Api.Extractions.ExtractionRequests.InstrumentIdentifierList",
            "ValidationOptions":{  
            "UseExchangeCodeInsteadOfLipper":true
         
         },
            "InstrumentIdentifiers": [
                {
                    "Identifier": "AU10YT=RR",
                    "IdentifierType": "Ric"
                }
            ]
        }
    }
}

The response is:

{
    "@odata.context": "https://hosted.datascopeapi.reuters.com/RestApi/v1/$metadata#Collection(ThomsonReuters.Dss.Api.Extractions.ExtractionRequests.ExtractionRow)",
    "value": [
        {
            "IdentifierType": "Ric",
            "Identifier": "AU10YT=RR",
            "Instrument ID": "AU10YT=RR",
            "Moodys Issuer Long Rating": "Aaa"
        }
    ]
}

For more information regarding On Demand composite extraction, please refer to REST API Tutorial 8: On Demand composite extraction.

You can also find a list of all available fields in DSS from Data Content Guide for DataScope Select.


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