Delphi DLL

Shopify GraphQL Simple Query (Get Shop Object)

See more Shopify Examples

Demonstrates a simple Shopify GraphQL query to get specific fields of the Shop object. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, StringBuilder, HttpResponse, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
http: HCkHttp;
query: PWideChar;
url: PWideChar;
resp: HCkHttpResponse;
sbResponseBody: HCkStringBuilder;
jResp: HCkJsonObject;
respStatusCode: Integer;
shopId: PWideChar;
shopName: PWideChar;
shopDescription: PWideChar;
shopEmail: PWideChar;
costRequestedQueryCost: Integer;
costActualQueryCost: Integer;
costThrottleStatusMaximumAvailable: PWideChar;
costThrottleStatusCurrentlyAvailable: Integer;
costThrottleStatusRestoreRate: PWideChar;

begin
success := False;

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

http := CkHttp_Create();

// This example will use private authentication (which is HTTP Basic authentication)
// See the other Chilkat Shopify examples for OAuth2 authentication.
// To use HTTP Basic Authentication with any HTTP request, we simply set the Login, Password, and BasicAuth properties.
// Important: All HTTP requests using Basic authentication must be over SSL/TLS.
CkHttp_putLogin(http,'SHOPIFY_PRIVATE_API_KEY');
CkHttp_putPassword(http,'SHOPIFY_PRIVATE_API_SECRET_KEY');
CkHttp_putBasicAuth(http,True);

// We're going to do a POST  https://{shop}.myshopify.com/admin/api/2021-04/graphql.json
// Make sure to replace "chilkat" with your store name.

// The body of the request will be:
//    {
//        shop {
//            id
//            name
//            description
//            email
//         }
//     }

// The above query is not JSON.  It looks like JSON, but it's actually not.
// We'll just make it one line:

query := '{ shop { id name description email } }';

// My store name is "chilkat".  Use your store name here instead.
url := 'https://chilkat.myshopify.com/admin/api/2021-04/graphql.json';

resp := CkHttpResponse_Create();
success := CkHttp_HttpStr(http,'POST',url,query,'utf-8','application/graphql',resp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

// Examine the response code.
if (CkHttpResponse_getStatusCode(resp) <> 200) then
  begin
    Memo1.Lines.Add('Received error response code: ' + IntToStr(CkHttpResponse_getStatusCode(resp)));
    Memo1.Lines.Add('Response body:');
    Memo1.Lines.Add(CkHttpResponse__bodyStr(resp));
    Exit;
  end;

sbResponseBody := CkStringBuilder_Create();
CkHttpResponse_GetBodySb(resp,sbResponseBody);
jResp := CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);
CkJsonObject_putEmitCompact(jResp,False);

Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(CkJsonObject__emit(jResp));

respStatusCode := CkHttpResponse_getStatusCode(resp);
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(CkHttpResponse__header(resp));
    Memo1.Lines.Add('Failed.');
    Exit;
  end;

// Sample JSON response:
// (Sample code for parsing the JSON response is shown below)

// {
//   "data": {
//     "shop": {
//       "id": "gid:\/\/shopify\/Shop\/24198053",
//       "name": "chilkat",
//       "description": null,
//       "email": "admin@chilkatsoft.com"
//     }
//   },
//   "extensions": {
//     "cost": {
//       "requestedQueryCost": 1,
//       "actualQueryCost": 1,
//       "throttleStatus": {
//         "maximumAvailable": 1000.0,
//         "currentlyAvailable": 999,
//         "restoreRate": 50.0
//       }
//     }
//   }
// }

// Sample code for parsing the JSON response...
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON

shopId := CkJsonObject__stringOf(jResp,'data.shop.id');
shopName := CkJsonObject__stringOf(jResp,'data.shop.name');
shopDescription := CkJsonObject__stringOf(jResp,'data.shop.description');
shopEmail := CkJsonObject__stringOf(jResp,'data.shop.email');
costRequestedQueryCost := CkJsonObject_IntOf(jResp,'extensions.cost.requestedQueryCost');
costActualQueryCost := CkJsonObject_IntOf(jResp,'extensions.cost.actualQueryCost');
costThrottleStatusMaximumAvailable := CkJsonObject__stringOf(jResp,'extensions.cost.throttleStatus.maximumAvailable');
costThrottleStatusCurrentlyAvailable := CkJsonObject_IntOf(jResp,'extensions.cost.throttleStatus.currentlyAvailable');
costThrottleStatusRestoreRate := CkJsonObject__stringOf(jResp,'extensions.cost.throttleStatus.restoreRate');

Memo1.Lines.Add('Shop name: ' + shopName);
// ...

CkHttp_Dispose(http);
CkHttpResponse_Dispose(resp);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);

end;