Get Value by Name of Nested Json Array

I wonder how it’s possible to get a value out of a nested JSON Array.

On first level, it’s actually working like this for me:

name := ((JSONValue as TJSONArray).Items[i] as TJSonObject).Get('meta_data').JSONValue.Value;

I tried different versions of .Get like:

.Get('meta_data.94.key').JSONValue.Value

or

.Get(['meta_data'],['94'],['key']).JSONValue.Value

I have no idea how it should work, as I am absolute beginner.

This is one item of the array, otherwise it’s too long to post here.

[{"id":1457,"name":"#1919 Schlu00fcsselanhu00e4nger Nassau","slug":"1919-schluesselanhaenger-nassau","permalink":"https://www.xxxxxx.biz/produkt/1919-schluesselanhaenger-nassau/","date_created":"2019-04-10T15:07:08","date_created_gmt":"2019-04-10T13:07:08","date_modified":"2024-01-03T07:56:00","date_modified_gmt":"2024-01-03T06:56:00","type":"simple","status":"publish","featured":false,"catalog_visibility":"visible","description":"<p>Pfiffiger Schlu00fcsselanhu00e4nger mit Heizungs-Entlu00fcftungs-Schlu00fcssel und schu00f6nem, breiten Flachring.<br />nDie grou00dfe Werbeflu00e4che bietet viel Platz fu00fcr Ihr Logo als Lasergravur, Druck oder Pru00e4gung.</p>n<h3 id="bulk-price-table"></h3>n","short_description":"<p>Schlu00fcsselanhu00e4nger Nassau</p>n","sku":"1919","price":"","regular_price":0,"sale_price":"","date_on_sale_from":null,"date_on_sale_from_gmt":null,"date_on_sale_to":null,"date_on_sale_to_gmt":null,"on_sale":false,"purchasable":false,"total_sales":0,"virtual":false,"downloadable":false,"downloads":[],"download_limit":-1,"download_expiry":-1,"external_url":"","button_text":"","tax_status":"taxable","tax_class":"","manage_stock":false,"stock_quantity":null,"backorders":"no","backorders_allowed":false,"backordered":false,"low_stock_amount":null,"sold_individually":false,"weight":"28","dimensions":{"length":"","width":"","height":""},"shipping_required":true,"shipping_taxable":true,"shipping_class":"","shipping_class_id":0,"reviews_allowed":false,"average_rating":"0.00","rating_count":0,"upsell_ids":[],"cross_sell_ids":[],"parent_id":0,"purchase_note":"","categories":[{"id":101,"name":"Schlu00fcsselanhu00e4nger Heizungsentlu00fcftung","slug":"schluesselanhaenger-heizungsentlueftung"}],"tags":[{"id":51,"name":"Schlu00fcsselanhu00e4nger","slug":"schluesselanhaenger"}],"images":[{"id":899,"date_created":"2019-04-01T01:04:00","date_created_gmt":"2019-03-31T21:04:00","date_modified":"2021-03-31T12:28:16","date_modified_gmt":"2021-03-31T08:28:16","src":"https://www.xxxxxx.biz/wp-content/uploads/2019/03/1919.jpg","name":"1919","alt":"1919"}],"attributes":[{"id":2,"name":"Zolltarifnummer","slug":"pa_zolltarifnummer","position":0,"visible":true,"variation":false,"options":["79070000000"]},{"id":3,"name":"Werbeanbringung","slug":"pa_werbeanbringung","position":1,"visible":true,"variation":false,"options":["Druck","Gravur"]},{"id":4,"name":"Werbeflu00e4che","slug":"pa_werbeflaeche","position":3,"visible":true,"variation":false,"options":["27 x 15 mm"]},{"id":5,"name":"Abmessungen","slug":"pa_abmessungen","position":4,"visible":true,"variation":false,"options":["88 x 22 x 10 mm"]},{"id":6,"name":"Material","slug":"pa_material","position":5,"visible":true,"variation":false,"options":["Metall"]}],"default_attributes":[],"variations":[],"grouped_products":[],"menu_order":0,"price_html":"","related_ids":[1452,1469,1461,1466,1451],"meta_data":[{"id":42499,"key":"_woosea_brand","value":""},{"id":42500,"key":"_woosea_mpn","value":""},{"id":42501,"key":"_woosea_upc","value":""},{"id":42502,"key":"_woosea_ean","value":""},{"id":42503,"key":"_woosea_gtin","value":""},{"id":42504,"key":"_woosea_optimized_title","value":""},{"id":42505,"key":"_woosea_unit_pricing_measure","value":""},{"id":42506,"key":"_woosea_unit_pricing_base_measure","value":""},{"id":42507,"key":"_woosea_condition","value":""},{"id":42508,"key":"_woosea_age_group","value":""},{"id":42509,"key":"_woosea_installment_months","value":""},{"id":42510,"key":"_woosea_installment_amount","value":""},{"id":42511,"key":"_woosea_exclude_product","value":"no"},{"id":42512,"key":"_woosea_cost_of_good_sold","value":""},{"id":42513,"key":"_woosea_multipack","value":""},{"id":42514,"key":"_woosea_is_bundle","value":""},{"id":42515,"key":"_woosea_energy_efficiency_class","value":""},{"id":42516,"key":"_woosea_min_energy_efficiency_class","value":""},{"id":42517,"key":"_woosea_max_energy_efficiency_class","value":""},{"id":42518,"key":"_et_pb_post_hide_nav","value":"default"},{"id":42519,"key":"_et_pb_page_layout","value":"et_right_sidebar"},{"id":42520,"key":"_et_pb_side_nav","value":"off"},{"id":42521,"key":"_et_pb_use_builder","value":""},{"id":42522,"key":"_et_builder_version","value":"BB|Divi|3.22.7"},{"id":42523,"key":"_et_pb_first_image","value":""},{"id":42524,"key":"_et_pb_truncate_post","value":""},{"id":42525,"key":"_et_pb_ab_stats_refresh_interval","value":"hourly"},{"id":42526,"key":"_et_pb_old_content","value":""},{"id":42527,"key":"_et_pb_enable_shortcode_tracking","value":""},{"id":42528,"key":"_et_pb_custom_css","value":""},{"id":47624,"key":"_product_url","value":""},{"id":47625,"key":"_button_text","value":""},{"id":47626,"key":"_max_variation_sale_price","value":""},{"id":47627,"key":"_min_variation_sale_price","value":""},{"id":47628,"key":"_max_variation_regular_price","value":""},{"id":47629,"key":"_min_variation_regular_price","value":""},{"id":47630,"key":"_max_variation_price","value":""},{"id":47631,"key":"_min_variation_price","value":""},{"id":52885,"key":"_wcj_product_images_meta_custom_on_single","value":""},{"id":52886,"key":"_wcj_product_images_meta_custom_on_archives","value":""},{"id":52887,"key":"_wcj_product_images_hide_image_on_single","value":"no"},{"id":52888,"key":"_wcj_product_images_hide_thumb_on_single","value":"no"},{"id":52889,"key":"_wcj_product_images_hide_image_on_archives","value":"no"},{"id":52890,"key":"_woosea_is_promotion","value":""},{"id":52891,"key":"_woosea_custom_field_0","value":""},{"id":52892,"key":"_woosea_custom_field_1","value":""},{"id":52893,"key":"_woosea_custom_field_2","value":""},{"id":52894,"key":"_woosea_custom_field_3","value":""},{"id":52895,"key":"_woosea_custom_field_4","value":""},{"id":52896,"key":"_unit_base","value":""},{"id":52897,"key":"_unit_product","value":""},{"id":52898,"key":"_unit_price_auto","value":"no"},{"id":52899,"key":"_unit_price_regular","value":""},{"id":52900,"key":"_unit_price","value":""},{"id":52901,"key":"_unit_price_sale","value":""},{"id":52902,"key":"_mini_desc","value":""},{"id":52904,"key":"_free_shipping","value":"no"},{"id":52905,"key":"_service","value":"no"},{"id":52906,"key":"_differential_taxation","value":"no"},{"id":52907,"key":"_ts_gtin","value":""},{"id":52908,"key":"_ts_mpn","value":""},{"id":58759,"key":"_metaseo_metadesc","value":"#1919 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Pfiffiger Schlu00fcsselanhu00e4nger mit Heizungs-Entlu00fcftungs-Schlu00fcssel und schu00f6nem, breiten 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Is it somehow possible to search for bm_psi_bulk_prices for example and then get the positions below this key? In this case, there are three price-ranges, but this can change.

1

You have to index the desired item in the array, cast the item to TJSONObject, and then call Get()/GetValue() on it for the desired field. That part you have down. You just have to repeat that for any nested objects/arrays as needed. For example:

var
  jsonValue: TJSONValue;
  jsonArr: TJSONArray;
  jsonObj: TJSONObject;
  key: string;
  i, j: Integer;
begin
  ...  
  jsonValue := ...;
  i := ...;
  jsonArr := jsonValue as TJSONArray;
  jsonObj := arr.Items[i] as TJSONObject;
  jsonArr := jsonObj.GetValue('meta_data') as TJSONArray;
  for j := 0 to jsonArr.Count-1 do
  begin
    jsonObj := jsonArr.Items[j] as TJSONObject;
    key := jsonObj.GetValue('key').Value;
    if key = 'bm_psi_bulk_prices' then
    begin
      jsonObj := jsonObj.GetValue('value') as TJSONObject;
      // use jsonObj.GetValue('1') and jsonObj.GetValue('2') as needed...
      Break;
    end;
  end;
  ...
end;

Trang chủ Giới thiệu Sinh nhật bé trai Sinh nhật bé gái Tổ chức sự kiện Biểu diễn giải trí Dịch vụ khác Trang trí tiệc cưới Tổ chức khai trương Tư vấn dịch vụ Thư viện ảnh Tin tức - sự kiện Liên hệ Chú hề sinh nhật Trang trí YEAR END PARTY công ty Trang trí tất niên cuối năm Trang trí tất niên xu hướng mới nhất Trang trí sinh nhật bé trai Hải Đăng Trang trí sinh nhật bé Khánh Vân Trang trí sinh nhật Bích Ngân Trang trí sinh nhật bé Thanh Trang Thuê ông già Noel phát quà Biểu diễn xiếc khỉ Xiếc quay đĩa Dịch vụ tổ chức sự kiện 5 sao Thông tin về chúng tôi Dịch vụ sinh nhật bé trai Dịch vụ sinh nhật bé gái Sự kiện trọn gói Các tiết mục giải trí Dịch vụ bổ trợ Tiệc cưới sang trọng Dịch vụ khai trương Tư vấn tổ chức sự kiện Hình ảnh sự kiện Cập nhật tin tức Liên hệ ngay Thuê chú hề chuyên nghiệp Tiệc tất niên cho công ty Trang trí tiệc cuối năm Tiệc tất niên độc đáo Sinh nhật bé Hải Đăng Sinh nhật đáng yêu bé Khánh Vân Sinh nhật sang trọng Bích Ngân Tiệc sinh nhật bé Thanh Trang Dịch vụ ông già Noel Xiếc thú vui nhộn Biểu diễn xiếc quay đĩa Dịch vụ tổ chức tiệc uy tín Khám phá dịch vụ của chúng tôi Tiệc sinh nhật cho bé trai Trang trí tiệc cho bé gái Gói sự kiện chuyên nghiệp Chương trình giải trí hấp dẫn Dịch vụ hỗ trợ sự kiện Trang trí tiệc cưới đẹp Khởi đầu thành công với khai trương Chuyên gia tư vấn sự kiện Xem ảnh các sự kiện đẹp Tin mới về sự kiện Kết nối với đội ngũ chuyên gia Chú hề vui nhộn cho tiệc sinh nhật Ý tưởng tiệc cuối năm Tất niên độc đáo Trang trí tiệc hiện đại Tổ chức sinh nhật cho Hải Đăng Sinh nhật độc quyền Khánh Vân Phong cách tiệc Bích Ngân Trang trí tiệc bé Thanh Trang Thuê dịch vụ ông già Noel chuyên nghiệp Xem xiếc khỉ đặc sắc Xiếc quay đĩa thú vị
Trang chủ Giới thiệu Sinh nhật bé trai Sinh nhật bé gái Tổ chức sự kiện Biểu diễn giải trí Dịch vụ khác Trang trí tiệc cưới Tổ chức khai trương Tư vấn dịch vụ Thư viện ảnh Tin tức - sự kiện Liên hệ Chú hề sinh nhật Trang trí YEAR END PARTY công ty Trang trí tất niên cuối năm Trang trí tất niên xu hướng mới nhất Trang trí sinh nhật bé trai Hải Đăng Trang trí sinh nhật bé Khánh Vân Trang trí sinh nhật Bích Ngân Trang trí sinh nhật bé Thanh Trang Thuê ông già Noel phát quà Biểu diễn xiếc khỉ Xiếc quay đĩa
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