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Pascal (Lazarus/Delphi)

Faire - Update Inventory Levels

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Update the inventory levels for multiple product options in one request.

Chilkat Pascal (Lazarus/Delphi) Downloads

Pascal (Lazarus/Delphi)
program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.StringBuilder,
  Chilkat.HttpResponse,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  http: THttp;
  json: TJsonObject;
  sbRequestBody: TStringBuilder;
  resp: THttpResponse;
  sbResponseBody: TStringBuilder;
  jResp: TJsonObject;
  respStatusCode: Integer;
  id: string;
  product_id: string;
  active: Boolean;
  deleted: Boolean;
  name: string;
  sku: string;
  available_quantity: Integer;
  created_at: string;
  updated_at: string;
  retail_price_cents: Integer;
  wholesale_price_cents: Integer;
  backordered_until: string;
  j: Integer;
  count_j: Integer;
  value: string;
  i: Integer;
  count_i: Integer;

begin
  success := False;

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

  http := THttp.Create;

  //  Implements the following CURL command:

  //  curl -X PATCH 
  //      -H "Content-Type: application/json" 
  //      -H "X-FAIRE-ACCESS-TOKEN: <access_token>"
  //      -d '{
  //    "inventories": [
  //      {
  //        "sku": "vanilla-candle",
  //        "current_quantity": 24,
  //        "discontinued": false,
  //        "backordered_until": null
  //      },
  //      {
  //        "sku": "cinnamon-candle",
  //        "current_quantity": 0,
  //        "discontinued": false,
  //        "backordered_until": "20190314T000915.000Z"
  //      },
  //      {
  //        "sku": "fall-candle",
  //        "current_quantity": 0,
  //        "discontinued": true,
  //        "backordered_until": null
  //      },
  //      {
  //        "sku": "fall-candle",
  //        "current_quantity": null,
  //        "discontinued": false,
  //        "backordered_until": null
  //      }
  //    ]
  //  }' https://www.faire.com/api/v1/products/options/inventory-levels

  //  Use the following online tool to generate HTTP code from a CURL command
  //  Convert a cURL Command to HTTP Source Code

  //  Use this online tool to generate code from sample JSON:
  //  Generate Code to Create JSON

  //  The following JSON is sent in the request body.

  //  {
  //    "inventories": [
  //      {
  //        "sku": "vanilla-candle",
  //        "current_quantity": 24,
  //        "discontinued": false,
  //        "backordered_until": null
  //      },
  //      {
  //        "sku": "cinnamon-candle",
  //        "current_quantity": 0,
  //        "discontinued": false,
  //        "backordered_until": "20190314T000915.000Z"
  //      },
  //      {
  //        "sku": "fall-candle",
  //        "current_quantity": 0,
  //        "discontinued": true,
  //        "backordered_until": null
  //      },
  //      {
  //        "sku": "fall-candle",
  //        "current_quantity": null,
  //        "discontinued": false,
  //        "backordered_until": null
  //      }
  //    ]
  //  }

  json := TJsonObject.Create;
  json.UpdateString('inventories[0].sku','vanilla-candle');
  json.UpdateInt('inventories[0].current_quantity',24);
  json.UpdateBool('inventories[0].discontinued',False);
  json.UpdateNull('inventories[0].backordered_until');
  json.UpdateString('inventories[1].sku','cinnamon-candle');
  json.UpdateInt('inventories[1].current_quantity',0);
  json.UpdateBool('inventories[1].discontinued',False);
  json.UpdateString('inventories[1].backordered_until','20190314T000915.000Z');
  json.UpdateString('inventories[2].sku','fall-candle');
  json.UpdateInt('inventories[2].current_quantity',0);
  json.UpdateBool('inventories[2].discontinued',True);
  json.UpdateNull('inventories[2].backordered_until');
  json.UpdateString('inventories[3].sku','fall-candle');
  json.UpdateNull('inventories[3].current_quantity');
  json.UpdateBool('inventories[3].discontinued',False);
  json.UpdateNull('inventories[3].backordered_until');

  http.SetRequestHeader('Content-Type','application/json');
  http.SetRequestHeader('X-FAIRE-ACCESS-TOKEN','<access_token>');

  sbRequestBody := TStringBuilder.Create;
  json.EmitSb(sbRequestBody);

  resp := THttpResponse.Create;
  success := http.HttpSb('PATCH','https://www.faire.com/api/v1/products/options/inventory-levels',sbRequestBody,'utf-8','application/json',resp);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  sbResponseBody := TStringBuilder.Create;
  resp.GetBodySb(sbResponseBody);

  jResp := TJsonObject.Create;
  jResp.LoadSb(sbResponseBody);
  jResp.EmitCompact := False;

  WriteLn('Response Body:');
  WriteLn(jResp.Emit());

  respStatusCode := resp.StatusCode;
  WriteLn('Response Status Code = ' + respStatusCode);
  if (respStatusCode >= 400) then
    begin
      WriteLn('Response Header:');
      WriteLn(resp.Header);
      WriteLn('Failed.');
      Exit;
    end;

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

  //  {
  //    "options": [
  //      {
  //        "id": "po_012",
  //        "product_id": "p_ghi",
  //        "active": false,
  //        "deleted": false,
  //        "name": "Fall Scent",
  //        "sku": "fall-candle",
  //        "available_quantity": 0,
  //        "created_at": "20190313T000915.000Z",
  //        "updated_at": "20190315T000915.000Z",
  //        "variations": [
  //          {
  //            "name": "Scent",
  //            "value": "Fall"
  //          }
  //        ],
  //        "retail_price_cents": 599,
  //        "wholesale_price_cents": 300
  //      },
  //      {
  //        "id": "po_789",
  //        "product_id": "p_def",
  //        "active": false,
  //        "deleted": false,
  //        "name": "Cinnamon Scent",
  //        "sku": "cinnamon-candle",
  //        "available_quantity": 0,
  //        "created_at": "20190312T000915.000Z",
  //        "updated_at": "20190315T000915.000Z",
  //        "backordered_until": "20190314T000915.000Z",
  //        "variations": [
  //          {
  //            "name": "Scent",
  //            "value": "Cinnamon"
  //          }
  //        ],
  //        "retail_price_cents": 599,
  //        "wholesale_price_cents": 300
  //      },
  //      {
  //        "id": "po_456",
  //        "product_id": "p_abc",
  //        "active": true,
  //        "deleted": false,
  //        "name": "Vanilla Scent",
  //        "sku": "vanilla-candle",
  //        "available_quantity": 24,
  //        "created_at": "20190314T000915.000Z",
  //        "updated_at": "20190315T000915.000Z",
  //        "variations": [
  //          {
  //            "name": "Scent",
  //            "value": "Vanilla"
  //          }
  //        ],
  //        "retail_price_cents": 599,
  //        "wholesale_price_cents": 300
  //      }
  //    ]
  //  }

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

  i := 0;
  count_i := jResp.SizeOfArray('options');
  while i < count_i do
    begin
      jResp.I := i;
      id := jResp.StringOf('options[i].id');
      product_id := jResp.StringOf('options[i].product_id');
      active := jResp.BoolOf('options[i].active');
      deleted := jResp.BoolOf('options[i].deleted');
      name := jResp.StringOf('options[i].name');
      sku := jResp.StringOf('options[i].sku');
      available_quantity := jResp.IntOf('options[i].available_quantity');
      created_at := jResp.StringOf('options[i].created_at');
      updated_at := jResp.StringOf('options[i].updated_at');
      retail_price_cents := jResp.IntOf('options[i].retail_price_cents');
      wholesale_price_cents := jResp.IntOf('options[i].wholesale_price_cents');
      backordered_until := jResp.StringOf('options[i].backordered_until');
      j := 0;
      count_j := jResp.SizeOfArray('options[i].variations');
      while j < count_j do
        begin
          jResp.J := j;
          name := jResp.StringOf('options[i].variations[j].name');
          value := jResp.StringOf('options[i].variations[j].value');
          j := j + 1;
        end;

      i := i + 1;
    end;



  http.Free;
  json.Free;
  sbRequestBody.Free;
  resp.Free;
  sbResponseBody.Free;
  jResp.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.