TRKD - Get Chain and Get Chain Components API call detail

ovx-wxu · August 2020

I'm trying to use to the the GetChain and GetChainComponents Operations, but the documentation is not available for these 2 calls.

Can someone provide me with the Endpoint, Body, and Headers for these calls? Thank you.

wasin.w · August 2020

Hello @ovx-wxu

The RetrieveItem_Request_3 operation has "ExpandChains" attribute that lets the API returns the data for all RICs included in this particular chain RIC (e.g. 0#.DJI) in one response. Is it match your requirement?

{
    "RetrieveItem_Request_3": {
        "ItemRequest": [{
            "Fields": "",
            "RequestKey": [{
                "Name": "0#.HSI",
                "NameType": "RIC"
            }],
            "ExpandChains": true,
            "Scope": "All"
        }]
    }
}

Regarding the Get Chain and Get Chain Components operations, they are available in SOAP WebService protocol only which returns data as XML message . You can find more detail about them in the RKD API Quote Chains page.

Gurpreet · August 2020

Hi @ovx-wxu,

1. The GetChain and GetChainComponents are only available as legacy SOAP API and are not provided as REST API endpoint. Do you still need the SOAP envelope?

2. I will raise the missing documentation issue with the development team.

ovx-wxu · August 2020

https://community.developers.refinitiv.com/discussion/comment/64229#Comment_64229

Hello @Gurpreet. , thank you for your reply again. Is there anything equivalent in JSON format? Where I can make a Chain call? As far as I see, GetSimpleData is the closest one.

If not, I would appreciate it if you can share the SOAP call with me. Thank you.

Gurpreet · August 2020

You can use RetrieveItem_Request_3 to get Chain data as well.

{
  "RetrieveItem_Request_3": {
    "TrimResponse": false,
    "ItemRequest": [{
        "Fields": "",
        "RequestKey ": [{
            "Name": "0#.DJI",
            "NameType": "RIC"
          }
        ],
        "Scope": "All"
      }
    ]
  }
}

See Section 16.6 for the Quote Chain documentation.

ovx-wxu · August 2020

https://community.developers.refinitiv.com/discussion/comment/64235#Comment_64235

I don't think RetrieveItem_Request_3 returns all the RICs within a Chain, is there another call that returns all the details of all the RICs in the Chain? Thanks again.

Gurpreet · August 2020

https://community.developers.refinitiv.com/discussion/comment/64239#Comment_64239

If you think this is an issue with returned chain data, I would recommend that you raise a content support ticket with my.refinitiv.com and talk to content expert. They would be able to advise you on alternate API calls to use here.

TRKD - Get Chain and Get Chain Components API call detail

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TRKD - Get Chain and Get Chain Components API call detail

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