B4X

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.

B4X

Dim success As Boolean = False

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

Dim json As ChilkatJsonObject
json.Initialize

'  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"
json.UpdateString("keyId", "api-key")
json.UpdateString("hmacKey", "api-secret")
json.UpdateString("algorithm", "hmac-sha256")
'  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.
json.UpdateString("headers[0]", "(request-target)")
json.UpdateString("headers[1]", "host")
json.UpdateString("headers[2]", "date")

Dim http As ChilkatHttp
http.Initialize("http")

'  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="..."
http.AuthSignature = json.Emit

http.SetRequestHeader("Cache-Control", "no-cache")

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

Dim responseJson As String = http.QuickGetStr("https://api-worldcheck.refinitiv.com/v2/groups")
If http.LastMethodSuccess = False Then
    Log(http.LastErrorText)
    Return
End If


Log(responseJson)
Log("----")
'  A 200 status code indicates success.
Log("Status code = " & http.LastStatus)

'  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

Dim jarr As ChilkatJsonArray
jarr.Initialize

success = jarr.Load(responseJson)

Dim jsonObj As ChilkatJsonObject
Dim id As String
Dim name As String
Dim parentId As String
Dim hasChildren As Boolean
Dim status As String
Dim j As Int
Dim count_j As Int

Dim i As Int = 0
Dim count_i As Int = jarr.Size
Do While i < count_i
    jsonObj = jarr.ObjectAt(i)
    id = jsonObj.StringOf("id")
    name = jsonObj.StringOf("name")
    parentId = jsonObj.StringOf("parentId")
    hasChildren = jsonObj.BoolOf("hasChildren")
    status = jsonObj.StringOf("status")
    j = 0
    count_j = jsonObj.SizeOfArray("children")
    Do While j < count_j
        jsonObj.J = j
        j = j + 1
    Loop

    i = i + 1
Loop