DataFlex

Refinitiv World-Check One - Get Top Level Groups

See more Refinitiv Examples

Sends a signed GET request to get the top level groups.

Note: This example requires Chilkat v9.5.0.89 or later.

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoJson
    Handle hoHttp
    String sResponseJson
    Handle hoJarr
    Variant vJsonObj
    Handle hoJsonObj
    String sId
    String sName
    String sParentId
    Boolean iHasChildren
    String sStatus
    Integer j
    Integer iCount_j
    Integer i
    Integer iCount_i
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

    Move False To iSuccess

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End

    // Create the following JSON:
    // 
    // {
    //   "keyId": "aaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
    //   "hmacKey": "xxxxzI3vi58xxxCBxxx1+P/d8tGxx7KuLqN/KMPNxxxxekhj8/bx83+1YQSUxxxxYyv939ceY06GvhYRKmxxxx==",
    //   "algorithm": "hmac-sha256",
    //   "headers": [
    //     "(request-target)",
    //     "host",
    //     "date"
    //   ]
    // }

    // Substitute your actual API key and API secret in place of "api-key" and "api-secret"
    Get ComUpdateString Of hoJson "keyId" "api-key" To iSuccess
    Get ComUpdateString Of hoJson "hmacKey" "api-secret" To iSuccess
    Get ComUpdateString Of hoJson "algorithm" "hmac-sha256" To iSuccess
    // Indicate the names of the headers to be included in the signature.
    // "(request-target)" is not actually a header name, but is a special name for HTTP signatures.
    // Copy the following three lines of code exactly as-is.  
    // Do not replace "host", "date", or "(request-target)" with values.
    Get ComUpdateString Of hoJson "headers[0]" "(request-target)" To iSuccess
    Get ComUpdateString Of hoJson "headers[1]" "host" To iSuccess
    Get ComUpdateString Of hoJson "headers[2]" "date" To iSuccess

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    // Setting the AuthSignature property causes the following header to be computed and added:
    // Authorization: Signature keyId="...", algorithm="hmac-sha256", headers="(request-target) host date", signature="..."
    Get ComEmit Of hoJson To sTemp1
    Set ComAuthSignature Of hoHttp To sTemp1

    Send ComSetRequestHeader To hoHttp "Cache-Control" "no-cache"

    // Chilkat will auto-add the Date header because it's needed by the HTTP Signature.

    Get ComQuickGetStr Of hoHttp "https://api-worldcheck.refinitiv.com/v2/groups" To sResponseJson
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln sResponseJson
    Showln "----"
    // A 200 status code indicates success.
    Get ComLastStatus Of hoHttp To iTemp1
    Showln "Status code = " iTemp1

    // Successful JSON looks like this:
    // [ 
    //   {
    //   "id": "...",
    //   "name": "Company Name",
    //   "parentId": null,
    //   "hasChildren": false,
    //   "status": "ACTIVE",
    //   "children": []
    //   }
    // ]

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    Get Create (RefClass(cComChilkatJsonArray)) To hoJarr
    If (Not(IsComObjectCreated(hoJarr))) Begin
        Send CreateComObject of hoJarr
    End

    Get ComLoad Of hoJarr sResponseJson To iSuccess

    Move 0 To i
    Get ComSize Of hoJarr To iCount_i
    While (i < iCount_i)
        Get ComObjectAt Of hoJarr i To vJsonObj
        If (IsComObject(vJsonObj)) Begin
            Get Create (RefClass(cComChilkatJsonObject)) To hoJsonObj
            Set pvComObject Of hoJsonObj To vJsonObj
        End
        Get ComStringOf Of hoJsonObj "id" To sId
        Get ComStringOf Of hoJsonObj "name" To sName
        Get ComStringOf Of hoJsonObj "parentId" To sParentId
        Get ComBoolOf Of hoJsonObj "hasChildren" To iHasChildren
        Get ComStringOf Of hoJsonObj "status" To sStatus
        Move 0 To j
        Get ComSizeOfArray Of hoJsonObj "children" To iCount_j
        While (j < iCount_j)
            Set ComJ Of hoJsonObj To j
            Move (j + 1) To j
        Loop

        Send Destroy of hoJsonObj
        Move (i + 1) To i
    Loop



End_Procedure