Tcl

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.

Tcl

load ./chilkat.dll

set success 0

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

set json [new_CkJsonObject]

# 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"
CkJsonObject_UpdateString $json "keyId" "api-key"
CkJsonObject_UpdateString $json "hmacKey" "api-secret"
CkJsonObject_UpdateString $json "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.
CkJsonObject_UpdateString $json "headers[0]" "(request-target)"
CkJsonObject_UpdateString $json "headers[1]" "host"
CkJsonObject_UpdateString $json "headers[2]" "date"

set http [new_CkHttp]

# 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="..."
CkHttp_put_AuthSignature $http [CkJsonObject_emit $json]

CkHttp_SetRequestHeader $http "Cache-Control" "no-cache"

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

set responseJson [CkHttp_quickGetStr $http "https://api-worldcheck.refinitiv.com/v2/groups"]
if {[CkHttp_get_LastMethodSuccess $http] == 0} then {
    puts [CkHttp_lastErrorText $http]
    delete_CkJsonObject $json
    delete_CkHttp $http
    exit
}

puts "$responseJson"
puts "----"
# A 200 status code indicates success.
puts "Status code = [CkHttp_get_LastStatus $http]"

# 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

set jarr [new_CkJsonArray]

set success [CkJsonArray_Load $jarr $responseJson]

# jsonObj is a CkJsonObject

set i 0
set count_i [CkJsonArray_get_Size $jarr]
while {$i < $count_i} {
    set jsonObj [CkJsonArray_ObjectAt $jarr $i]
    set id [CkJsonObject_stringOf $jsonObj "id"]
    set name [CkJsonObject_stringOf $jsonObj "name"]
    set parentId [CkJsonObject_stringOf $jsonObj "parentId"]
    set hasChildren [CkJsonObject_BoolOf $jsonObj "hasChildren"]
    set status [CkJsonObject_stringOf $jsonObj "status"]
    set j 0
    set count_j [CkJsonObject_SizeOfArray $jsonObj "children"]
    while {$j < $count_j} {
        CkJsonObject_put_J $jsonObj $j
        set j [expr $j + 1]
    }
    delete_CkJsonObject $jsonObj

    set i [expr $i + 1]
}

delete_CkJsonObject $json
delete_CkHttp $http
delete_CkJsonArray $jarr