Historical Chain Constituents Searchに関して、APIの引数にStartとEndの定義がリファレンスで確認出来ないのでご教授頂いてもよろしいでしょうか。
また、このStartとEndで取れるRicのデータはその期間時点で存在していた取引になるのでしょうか。
つまりは、Start:2020-01-01 End:2023-01-01とした場合、2020年から2023年までの間で、満期日を迎えた取引も含め、全ての子Ricの情報が返ってくるで間違いないでしょうか。
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子Ricコード取得API引数の定義について
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Thank you for reaching out to us.
The request should look like this:
{
"Request": {
"ChainRics": [
"0#.DJI"
],
"Range": {
"Start": "2020-01-01T00:00:00.000Z",
"End": "2023-01-01T00:00:00.000Z"
}
}
}
You can refer to the REST API Tutorial 15: Historical Chain Constituents Search tutorial for more information.
For the questions regarding the returned RICs, please kindly contact the Refinitiv Tick History support team directly via MyRefinitiv.
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You can check the REST API Reference Tree regarding the descriptions of the Start and End parameters. This endpoint is used to resolve current and past chain constituents given a chain RIC. 
However, if this doesn't answer your questions, please kindly contact the Refinitiv Tick History support team directly via MyRefinitiv.
