Rest API GET call in JSON format in Dynamics 365 Finance and Operations | CloudFronts

Rest API GET call in JSON format in Dynamics 365 Finance and Operations


Introduction:
In this blog, we will see how to get response from Rest Api through GET call

Solution: 
Consisting of basic authentication, we will pass username and password in byteStr and for the endpoint we will put it in url in below code.
class CFSJSTestRestAPI
{
    public static void main(Args _args)
    {
        int                                find;
        str                                url,aosUri,activeDirectoryTenant;
        str                                activeDirectoryClientAppId;
        str                                activeDirectoryClientAppSecret;
        str                                postData,activeDirectoryResource;
        str                                aadClientAppSecret,oAuthHeader;
        str                                returnValue,jsonString,jsondszstr;
        System.Net.HttpWebRequest          request;
        System.Net.HttpWebResponse         response;
        System.Byte[]                      byteArray;
        System.IO.Stream                   dataStream;
        System.IO.StreamReader             streamRead;
        System.IO.StreamWriter             streamWrite;
        System.Net.ServicePoint            servicePoint;
        System.Net.ServicePointManager     servicePointmgr;
        System.Net.HttpVersion             version;
        CLRObject                          clrObj;
        Newtonsoft.Json.JsonReader         reader;
        System.Text.Encoding               utf8;
        Counter                            countCounter;
        Object                             obj;
        Map                                data;
        System.Byte[]                      byteArraynew;
        System.Net.WebHeaderCollection     headers = new System.Net.WebHeaderCollection();
     
        new InteropPermission(InteropKind::ClrInterop).assert();
  
        str  byteStr = strfmt('%1:%2', "USERNAME", "PASSWORD");
        
        headers  = new System.Net.WebHeaderCollection();
        url      = "http://dummy.restapiexample.com/api/v1/employees";
        clrObj   = System.Net.WebRequest::Create(url);
        request  = clrObj;
        request.set_Method("GET");
        request.set_KeepAlive(true);
        request.set_ContentType("application/json");
        utf8            = System.Text.Encoding::get_UTF8();
        byteArraynew    = utf8.GetBytes(byteStr);
        byteStr         = System.Convert::ToBase64String(byteArraynew);

        headers.Add("Authorization", 'Basic ' + byteStr);
        request.set_Headers(headers);

        servicePoint = request.get_ServicePoint();

        System.Net.ServicePointManager::set_Expect100Continue(false);
        System.Net.ServicePointManager::set_SecurityProtocol(System.Net.SecurityProtocolType::Tls12);

        response    = request.GetResponse();
        dataStream  = response.GetResponseStream();
        streamRead  = new System.IO.StreamReader(dataStream);
        jsonString  = streamRead.ReadToEnd();

        info(strFmt("RESPONSE: %1",jsonString));

        dataStream.Close();
        response.Close();
    }
}

Thanks for reading !!!

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