(Tcl) Moody's REST API - Get OAuth2 Token

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Demonstrates how to get an OAuth2 access token for the Moody's REST API.

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load ./chilkat.dll

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

set http [new_CkHttp]

set req [new_CkHttpRequest]

CkHttpRequest_AddParam $req "grant_type" "password"
CkHttpRequest_AddParam $req "scope" "api/ratings api/addin rest"
CkHttpRequest_AddParam $req "username" "my_username"
CkHttpRequest_AddParam $req "password" "my_password"
# I have no idea of where to get the client_id or client_secret.
# When you create a Moody's App, it only provides an "API Key".
CkHttpRequest_AddParam $req "client_id" "my_client_id"
CkHttpRequest_AddParam $req "client_secret" "my_client_secret"

# resp is a CkHttpResponse
set resp [CkHttp_PostUrlEncoded $http "https://api.moodys.com/OAuth/Token" $req]
if {[CkHttp_get_LastMethodSuccess $http] != 1} then {
    puts [CkHttp_lastErrorText $http]
    delete_CkHttp $http
    delete_CkHttpRequest $req
    exit
}

puts "status code = [CkHttpResponse_get_StatusCode $resp]"
set responseBody [CkHttpResponse_bodyStr $resp]
puts "$responseBody"

# Save the JSON to a file for future requests.
if {[CkHttpResponse_get_StatusCode $resp] == 200} then {
    set fac [new_CkFileAccess]

    CkFileAccess_WriteEntireTextFile $fac "qa_data/tokens/moodys.json" [CkHttpResponse_bodyStr $resp] "utf-8" 0
}

delete_CkHttpResponse $resp


delete_CkHttp $http
delete_CkHttpRequest $req
delete_CkFileAccess $fac