API/Read: Difference between revisions

From Open Food Facts wiki
VisualWikitext
(Created page with "== READ API Documentation == === Downloading static data === It is recommended to use the live API to get fresh data about products, the minute they are uploaded to the databa...")
Ā 
Line 835: Line 835:
</pre>
</pre>


=== Linked Data (coming soon) ===
=== Linked Data ===
==== Link to Wikipedia and Wikidata ====
==== Link to Wikipedia and Wikidata ====
Whenever possible, Open Food Facts entities are linked to Wikidata, and in turn to Wikipedia. What this means is that you get access to a trove of additional encyclopedic knowledge about food. You can for instance get: Wikipedia articles about Camembert, the translation of salt in many languages, the molecular structure of a cosmetic ingredientā€¦<br>
Whenever possible, Open Food Facts entities are linked to Wikidata, and in turn to Wikipedia. What this means is that you get access to a trove of additional encyclopedic knowledge about food. You can for instance get: Wikipedia articles about Camembert, the translation of salt in many languages, the molecular structure of a cosmetic ingredientā€¦<br>

Revision as of 15:35, 30 March 2018

READ API Documentation

Downloading static data

It is recommended to use the live API to get fresh data about products, the minute they are uploaded to the database. However, in some cases, you may need a snapshot. They are available at:

CSV API

The character that separates fields is <tab> (tabulation).

Encoding

The file encoding is Unicode UTF-8.

MongoDB dump

Field reference

The fields used in the api. https://world.openfoodfacts.org/data/data-fields.txt

JSON interface

Pagination of results

If you're looking for all products within a facet (eg: https://fr-en.openfoodfacts.org/category/pizzas.json), you'll only have the 1st page. To move from page to page: 

https://fr-en.openfoodfacts.org/category/pizzas/1.json
https://fr-en.openfoodfacts.org/category/pizzas/2.json

Countries and Language of the Response

You can either use the global (https://world.openfoodfacts.org, https://ssl-api.openfoodfacts.org) or local (https://fr.openfoodfacts.org,https://en.openfoodfacts.orgā€¦) domains for your API queries

A few things to note

Country code (cc) and Language of the interface (lc)

By default, the country code (cc) and language of the interface (lc) are set through the subdomain.

Examples
  1. https://world.openfoodfacts.org --> cc = world, lc = en (default language for the "country")
  2. https://fr.openfoodfacts.org --> cc = fr (France), lc = fr (French)
  3. https://jp.openfoodfacts.org --> cc = jp (Japan), lc = ja (Japanese)
  4. https://ch.openfoodfacts.org --> cc = ch (Switzerland), lc = de (German, set as main language for Switzerland)
  5. https://ch-fr.openfoodfacts.org --> cc = ch, lc = fr (French)

Over-riding Country code (cc) and Language of the interface (lc) using cc and lc parameters

If you pass ?cc=us and/or &lc=it, it will set the country to US and the language to Italian -> if you just pass cc, the lc will be the one set in the subdomain. e.g. world.openfoodfacts.org + cc = fr --> cc = fr, lc = en (default language of world)

The cc affects which results are returned. cc = fr -> you get only products with France listed in the countries where sold field.

The lc affects the language in which results will come back.

If the results include links to products, those links will use a new subdomain that corresponds to the overrides.

Reading a product

The requested subdomain will be the locale fetched. (fr.openfoodfacts will fetch FR, world.openfoodfacts EN, world-fr FR products from the whole world)

Structure of the call

The final number must be a valid barcode.

Status codes

If a product is not found
{  
   "status_verbose":"product not found",
   "code":"32421",
   "status":0
}
If the product is found properly

See a full example: API/Full JSON example

Fields within a product

Name

  • product_name : name of the product : Coca Cola
  • generic_name : name that shouldn't contain brands : Cola soda
  • generic_name_LANG_CODE : name that shouldn't contain brands:
    • generic_name_fr:soda au cola
    • generic_name_en:cola soda

Barcodes

  • code : barcode of the product (can be EAN-13 or internal codes for some food stores), for products without a barcode, Open Food Facts assigns a number starting with the 200 reserved prefix
List of List of barcodes beginning with a given number
List of barcodes beginning with 3596710

Quantity and unit

  • quantity : quantity and unit

URL of the product page

  • url : url of the product page on Open Food Facts

Brands

  • brands
  • brands_tags
List of Brands
Individual Brand

Product images

  • Images ensure the reliability of Open Food Facts data. It provides a primary source and proof of all the structured data. You may therefore want to display it along the structured information.
  • We encourage you to let your users upload images for products that don't exist yet, and for existing products as well (packaging and information changes over time).
  • We have different scales of images. Use them wisely to save bandwidth, both for your users and Open Food Facts.
Raw images
  • image_small_url
  • image_thumb_url
  • image_url
Front image
  • "image_front_url"
  • "image_front_small_url"
  • "image_front_thumb_url"
Ingredients image
  • "image_ingredients_url"
  • "image_ingredients_small_url"
  • "image_ingredients_thumb_url"
Nutrition image
  • "image_nutrition_url"
  • "image_nutrition_small_url"
  • "image_nutrition_thumb_url"

Languages

Languages on the packaging of the product.

List of languages present on packaging
List of products with given language on packaging
List of products in Italian and Chinese
List of multilingual products
List of products by language count
Getting suggestions for languages


Labels

Labels
  • labels
  • labels_fr
Label tags
  • labels_tags
  • labels_debug_tags
  • labels_prev_tags
  • labels_next_tags
Label hierarchy
  • labels_hierarchy
  • labels_prev_hierarchy
  • labels,labels_next_hierarchy


For a list of all taxonomized values in all supported languages, please refer to the Global labels taxonomy

List of labels
Individual label
Label images

No format API is currently available. However, they are predictable: 

https://static.openfoodfacts.org/images/lang/en/labels/eu-organic.135x90.svg

A full list is available at: 

https://github.com/openfoodfacts/openfoodfacts-server/tree/master/html/images/lang/fr/labels
https://github.com/openfoodfacts/openfoodfacts-server/tree/master/html/images/lang/en/labels
https://github.com/openfoodfacts/openfoodfacts-server/tree/master/html/images/lang/de/labels
Getting suggestions for labels

Categories

For a list of all possible values in all supported languages, please refer to the Global categories taxonomy

  • categories
  • categories_tags
  • categories_fr
  • main_category
  • main_category_fr
Hierarchy

The categories_hierarchy is sorted by the "level" of each category. Level 0 means the category has no children, level 1 means it has children that do not have other children, level 2 is when it has children that have children that do not have children etc.

List of categories
Individual category
Getting suggestions for categories

Location of a product (from country to store)

Origins of ingredients
  • origins : origins of ingredients
  • origins_tags
Manufacturing Places
  • manufacturing_places : places where manufactured or transformed
  • manufacturing_places_tags
Cities
  • cities
  • cities_tags
Country of products
  • countries : list of countries where the product is sold
  • countries_tags
  • countries_fr
List of Countries
Individual Country
Getting suggestions for Countries
Purchase place of products
  • purchase_places
List of purchase places
Individual purchase place
Store of products
  • stores
List of Stores
Individual Store

Composition of a product : ingredients, detected ingredients, traces, allergens

Ingredients
Do not make the assumption that the ingredient is or is not present based on this. Parsing errors happen.
List of ingredients on a specific product
  • On a product ingredients_text contains the text of the ingredients.
    • ingredients_text_fr, ingredients_text_nlā€¦ (the package of a product may be multilingual)
    • ingredients_text_with_allergens_fr (same with HTML markup around allergens)
  • This list is parsed and we construct an ingredients and ingredients_tags list, but those will contain synonyms etc. We do not have a full taxonomy for ingredients yet. It's a work in progress.
    • ingredients
      • percent: possible detected percentage (still unreliable)
      • rank: the order of the ingredient in the ingredient list
      • id: a slug version of the detected ingredient
      • text: the raw text of the detected ingredient
    • ingredients_tags
  • The ingredients are not yet taxonomized on Open Food Facts. They are taxonomized on Open Beauty Facts
  • The taxonomies of ingredients need expansion: Global ingredients taxonomy (OFF), Global ingredients taxonomy Open Beauty Facts
List of detected ingredients
List of products where a specific ingredient has been detected
Getting suggestions for ingredients (ONLY FOR OBF at the moment)


Vitamins and minerals detection
Vitamins
"vitamins_tags":["en:vitamin-a","en:cholecalciferol","en:vitamin-e","en:vitamin-c","en:thiamin","en:riboflavin","en:niacin","en:vitamin-b6","en:folic-acid","en:vitamin-b12","en:biotin","en:phylloquinone"]
Minerals
"minerals_tags":["en:calcium-citrate","en:potassium-citrate","en:sodium-citrate","en:magnesium-chloride","en:calcium-phosphate","en:potassium-phosphate","en:ferrous-sulphate","en:zinc-sulphate","en:cupric-sulphate","en:manganese-sulphate","en:sodium-carbonate","en:potassium-iodide"]
Amino acids
"amino_acids_tags":["en:l-tryptophan"]
= Other nutritional substances
"other_nutritional_substances_tags":["en:taurine","en:inositol","en:choline-citrate","en:taurine","en:inositol","en:choline-citrate","en:taurine","en:inositol","en:choline-citrate"]<pre>

===== Palm Oil Detection ===== 
* ingredients_from_palm_oil_n
* ingredients_from_palm_oil
* ingredients_from_palm_oil_tags
* ingredients_that_may_be_from_palm_oil_n
* ingredients_that_may_be_from_palm_oil
* ingredients_that_may_be_from_palm_oil_tags
====== Ingredients from palm oil ======
======= List of ingredients from palm oil =======
* https://world.openfoodfacts.org/ingredients-from-palm-oil.json
* https://world.openfoodfacts.org/ingredients-from-palm-oil.xml
======= List of products where a specific ingredient from palm oil has been detected =======
* https://world.openfoodfacts.org/ingredients-from-palm-oil/huile-de-palme.json
* https://world.openfoodfacts.org/ingredients-from-palm-oil/huile-de-palme.xml

====== Ingredients that may be from palm oil ======
======= List of ingredients that may be from palm oil =======
* https://world.openfoodfacts.org/ingredients-that-may-be-from-palm-oil.json
* https://world.openfoodfacts.org/ingredients-that-may-be-from-palm-oil.xml

======= List of products where a specific ingredient that may be from palm oil has been detected =======
* https://world.openfoodfacts.org/ingredients-that-may-be-from-palm-oil/e470b-stearate-de-magnesium.json
* https://world.openfoodfacts.org/ingredients-that-may-be-from-palm-oil/e470b-stearate-de-magnesium.xml

=====Trace of products=====
* traces
* traces_tags
======List of Traces ======
* https://world.openfoodfacts.org/traces.json
* https://world.openfoodfacts.org/traces.xml
======Individual Trace ======
* https://world.openfoodfacts.org/trace/eggs.json
* https://world.openfoodfacts.org/trace/eggs.xml

======Getting suggestions for traces ======
* https://world.openfoodfacts.org/cgi/suggest.pl?lc=fr&tagtype=traces&string=m

===== Food (or cosmetic) additives =====
* additives_n : number of food additives
* additives
* additives_tags
For a list of all taxonomized values in all supported languages, please refer to the [[Global additives taxonomy]]
====== List of Additives ======
* https://world.openfoodfacts.org/additives.json
* https://world.openfoodfacts.org/additives.xml
====== Individual Additive ======
* https://world.openfoodfacts.org/additive/e301-sodium-ascorbate.json
* https://world.openfoodfacts.org/additive/e301-sodium-ascorbate.xml
====== Getting suggestions for additives ======
* https://world.openfoodfacts.org/cgi/suggest.pl?lc=fr&tagtype=additives&string=e

=====Allergens of products=====
======List of allergens======
* https://world.openfoodfacts.org/allergens.json
* https://world.openfoodfacts.org/allergens.xml
======Individual allergen======
* https://world.openfoodfacts.org/allergen/fish.json
* https://world.openfoodfacts.org/allergen/fish.xml

======Getting suggestions for allergens ======
* https://world.openfoodfacts.org/cgi/suggest.pl?lc=fr&tagtype=allergens&string=a

==== Nutrition values ====
===== Nutrition data =====
====== General structure ======
The nutrition facts are presented by multiple fields per nutrition fact. Each nutrition fact is presented by a key, i.e. "salt", "fat", etc. The fields can also be found in the taxonomy translation file.

The fields can have the following structure:
* key (string) - the value for the nutrition fact key (eg in json: "fiber":"0.5");
* key_serving (string) -  the value of a serving for type key (eg: in json "carbohydrates_serving":"5.82"). The size of the servig is found in the serving field;
* key_value (string)  - the standardized value of a serving of 100g (100ml) for type key (eg in json: "salt_100g":"0.19");
* key_100g (string) - the standardized value of a serving of 100g (100ml) for type key (eg in json: "salt_100g":"0.19");
* key_unit (string) - the units used in the other fields (eg in json: "carbohydrates_unit":"g"). Possible values are "kg", "g", "mg, "Āµg", "l", "ml", "%" or "";
* key_label (string) - a more user friendly text explaining the 

Only the nutrition facts that are actually found on the packaging are present in the interface.

====== List of nutrition keys ======
The following nutrition keys are supported:
* energy
* proteins
* casein
* serum-proteins
* nucleotides
* carbohydrates
* sugars
* sucrose
* glucose
* fructose
* lactose
* maltose
* maltodextrins
* starch
* polyols
* fat
* saturated-fat
* butyric-acid
* caproic-acid
* caprylic-acid
* capric-acid
* lauric-acid
* myristic-acid
* palmitic-acid
* stearic-acid
* arachidic-acid
* behenic-acid
* lignoceric-acid
* cerotic-acid
* montanic-acid
* melissic-acid
* monounsaturated-fat
* polyunsaturated-fat
* omega-3-fat
* alpha-linolenic-acid
* eicosapentaenoic-acid
* docosahexaenoic-acid
* omega-6-fat
* linoleic-acid
* arachidonic-acid
* gamma-linolenic-acid
* dihomo-gamma-linolenic-acid
* omega-9-fat
* oleic-acid
* elaidic-acid
* gondoic-acid
* mead-acid
* erucic-acid
* nervonic-acid
* trans-fat
* cholesterol
* fiber
* sodium
* alcohol: % vol of alcohol
* vitamin-a
* vitamin-d
* vitamin-e
* vitamin-k
* vitamin-c
* vitamin-b1
* vitamin-b2
* vitamin-pp
* vitamin-b6
* vitamin-b9
* vitamin-b12
* biotin
* pantothenic-acid
* silica
* bicarbonate
* potassium
* chloride
* calcium
* phosphorus
* iron
* magnesium
* zinc
* copper
* manganese
* fluoride
* selenium
* chromium
* molybdenum
* iodine
* caffeine
* taurine

====== Specific nutrition keys ====== 
* carbon-footprint_100g : carbon footprint (indicated on some products) 
* ph_100g : pH (no unit)
* cocoa - minimal cacao content of the product in %. Note the TYPO.
* fruits-vegetables-nuts_100g : % of fruits, vegetables and nuts (excluding potatoes, yams, manioc)
* fruits_vegetables_nuts_estimate_100g : estimate by manually looking at the list of ingredients


* nutrition-score-fr_100g : experimental nutrition score derived from the UK FSA score and adapted for the French market (formula defined by the team of Professor Hercberg)
* nutrition-score-uk_100g : nutrition score defined by the UK Food Standards Administration (FSA)

===== Nutrition grades (Nutriscore, UK grades) =====
* For more details, see [https://fr.openfoodfacts.org/score-nutritionnel-experimental-france the page explaining the grade computation]
* nutrition_score_debug: lets you see the calculations made
<pre>"nutrition_score_debug":" -- energy 3 + sat-fat 6 + fr-sat-fat-for-fats 6 + sugars 0 + sodium 6 - fruits 0% 0 - fiber 0 - proteins 5 -- fsa 15 -- fr 15"
  • Nutrition Grade Value
"nutrition_grades":"d"
"nutrition_grades_tags":["d"]
"nutrition_grade_fr":"d"
Nutrition Grade Images

No formal API is available, but you can use: 

https://static.openfoodfacts.org/images/misc/nutriscore-a.svg
https://static.openfoodfacts.org/images/misc/nutriscore-b.svg
https://static.openfoodfacts.org/images/misc/nutriscore-c.svg
https://static.openfoodfacts.org/images/misc/nutriscore-d.svg
https://static.openfoodfacts.org/images/misc/nutriscore-e.svg
List of all nutrition grades
List of products with a given nutrition grade (from A to E, including unknown)
Nutrients levels
List of all nutrition levels
List of products with fat in low quantity
Unknown Nutrients

They might be unknown for a good reasonā€¦

List of Unknown Nutrients
Individual Unknown Nutrients

Packaging

  • packaging : shape, material
  • packaging_tags
  • Packaging are not taxonomized yet.
List of Packagings
Individual Packaging
Packaging images

No API is currently available. As a workaround, you can use the images from the server, or those folders. 

https://github.com/openfoodfacts/openfoodfacts-server/tree/master/html/images/lang/jp/packaging
https://github.com/openfoodfacts/openfoodfacts-server/tree/master/html/images/lang/de/packaging
Packager codes
  • emb_codes
  • emb_codes_tags
  • first_packaging_code_geo : coordinates corresponding to the first packaging code indicated
List of Packager codes
List of products with given Packager code
EMB (France specific)
=EU Codes (Europe-wide) =
= Note =

Other codes might be present, but we don't have specific support yet

List of Packaging cities
List of products with given Packaging city


Contributors

Contributors
Photographers
Informers

Product status & modification history

  • creator : contributor who first added the product
  • created_t : date that the product was added (UNIX timestamp format)
  • created_datetime : date that the product was added (iso8601 format: yyyy-mm-ddThh:mn:ssZ)
  • last_modified_t : date that the product page was last modified
  • last_modified_datetime
Status of products

For all possible values, please refer to the Global states taxonomy

List of States
Individual Status
Getting suggestions for states
Last Edit Dates
List of Last Edit Dates
List of products with a given last edit date
Entry dates
List of entry dates
List of products with a given entry date

Searching for products

Generic Search
Core principle: Combine tags to get custom results

Combining tags is really powerful, letting you create thousands of custom APIs for your use case.


Advanced Search
Query examples
https://world.openfoodfacts.org/cgi/search.pl?search_terms=coke&search_simple=1&jqm=1
https://world.openfoodfacts.org/cgi/search.pl?search_terms=banania&search_simple=1&action=process&json=1
https://world.openfoodfacts.org/cgi/search.pl?search_terms=banania&search_simple=1&action=process&xml=1
https://world.openfoodfacts.org/cgi/search.pl?search_terms=banania&search_simple=1&action=process&rss=1
Parameters

You can basically use all the parameters you'd use in a graphical advanced search on the site

search_url = "https://world.openfoodfacts.org/cgi/search.pl"
search_terms2 # search terms

# FIRST CRITERIA (TAG0)

tagtype_0
search_tag # choose a criterion...

# CRITERION
brands # brands
categories # categories
packaging # packaging
labels # labels
origins # origins of ingredients
manufacturing_places # manufacturing or processing places
emb_codes # packager codes
purchase_places # purchase places
stores # stores
countries # countries
additives # additives
allergens # allergens
traces # traces
nutrition_grades # Nutrition grades
states # states
	
# Contains or Not
tag_contains_0
contains
does_not_contain

# Value of Tag (free text)
tag_0

#additives 
additives 
without # without_additives
with # with_additives
indifferent # indifferent_additives

# Ingredients from palm oil
ingredients_from_palm_oil 
without
with
indifferent	

# Ingredients that may be from palm oil
ingredients_that_may_be_from_palm_oil
without
with
indifferent

#ingredients_from_or_that_may_be_from_palm_oi
ingredients_from_or_that_may_be_from_palm_oil
without
with
indifferent


# Nutrients

nutriment_0

search_nutriment # choose a nutriment...

energy # Energy
energy-from-fat # Energy from fat
fat # Fat
saturated-fat # Saturated fat
butyric-acid # Butyric acid (4:0)
caproic-acid # Caproic acid (6:0)
caprylic-acid # Caprylic acid (8:0)
capric-acid # Capric acid (10:0)
lauric-acid # Lauric acid (12:0)
myristic-acid # Myristic acid (14:0)
palmitic-acid # Palmitic acid (16:0)
stearic-acid # Stearic acid (18:0)
arachidic-acid # Arachidic acid (20:0)
behenic-acid # Behenic acid (22:0)
lignoceric-acid # Lignoceric acid (24:0)
cerotic-acid # Cerotic acid (26:0)
montanic-acid # Montanic acid (28:0)
melissic-acid # Melissic acid (30:0)
monounsaturated-fat # Monounsaturated fat
polyunsaturated-fat # Polyunsaturated fat
omega-3-fat # Omega 3 fatty acids
alpha-linolenic-acid # Alpha-linolenic acid / ALA (18:3 n-3)
eicosapentaenoic-acid # Eicosapentaenoic acid / EPA (20:5 n-3)
docosahexaenoic-acid # Docosahexaenoic acid / DHA (22:6 n-3)
omega-6-fat # Omega 6 fatty acids
linoleic-acid # Linoleic acid / LA (18:2 n-6)
arachidonic-acid # Arachidonic acid / AA / ARA (20:4 n-6)
gamma-linolenic-acid # Gamma-linolenic acid / GLA (18:3 n-6)
dihomo-gamma-linolenic-acid # Dihomo-gamma-linolenic acid / DGLA (20:3 n-6)
omega-9-fat # Omega 9 fatty acids
oleic-acid # Oleic acid (18:1 n-9)
elaidic-acid # Elaidic acid (18:1 n-9)
gondoic-acid # Gondoic acid (20:1 n-9)
mead-acid # Mead acid (20:3 n-9)
erucic-acid # Erucic acid (22:1 n-9)
nervonic-acid # Nervonic acid (24:1 n-9)
trans-fat # Trans fat
cholesterol # Cholesterol
carbohydrates # Carbohydrate
sugars # Sugars
sucrose # Sucrose
glucose # Glucose
fructose # Fructose
lactose # Lactose
maltose # Maltose
maltodextrins # Maltodextrins
starch # Starch
polyols # Sugar alcohols (Polyols)
fiber # Dietary fiber
proteins # Proteins
casein # casein
serum-proteins # Serum proteins
nucleotides # Nucleotides
salt # Salt
sodium # Sodium
alcohol # Alcohol
vitamin-a # Vitamin A
beta-carotene # Beta carotene
vitamin-d # Vitamin D
vitamin-e # Vitamin E
vitamin-k # Vitamin K
vitamin-c # Vitamin C (ascorbic acid)
vitamin-b1 # Vitamin B1 (Thiamin)
vitamin-b2 # Vitamin B2 (Riboflavin)
vitamin-pp # Vitamin B3 / Vitamin PP (Niacin)
vitamin-b6 # Vitamin B6 (Pyridoxin)
vitamin-b9 # Vitamin B9 (Folic acid / Folates)
vitamin-b12 # Vitamin B12 (cobalamin)
biotin # Biotin
pantothenic-acid # Pantothenic acid / Pantothenate (Vitamin B5)
silica # Silica
bicarbonate # Bicarbonate
potassium # Potassium
chloride # Chloride
calcium # Calcium
phosphorus # Phosphorus
iron # Iron
magnesium # Magnesium
zinc # Zinc
copper # Copper
manganese # Manganese
fluoride # Fluoride
selenium # Selenium
chromium # Chromium
molybdenum # Molybdenum
iodine # Iodine
caffeine # Caffeine
taurine # Taurine
ph # pH
fruits-vegetables-nuts # Fruits, vegetables and nuts (minimum)
collagen-meat-protein-ratio # Collagen/Meat protein ratio (maximum)
cocoa # Cocoa (minimum)
chlorophyl # Chlorophyl
carbon-footprint # Carbon footprint / CO2 emissions
nutrition-score-fr # Experimental nutrition score
nutrition-score-uk # Nutrition score - UK

# Comparison of nutrients
# Nutriment to compare
nutriment_compare_0

# Operator
lt # less than
lte # less than or equal
gt # greater than
gte # greater than or equal
eq # equal to
		
# Value to compare the nutrients to
nutriment_value_0

# Output
sort_by # sort_by
unique_scans_n # Popularity
product_name # Product name
created_t # Add date
last_modified_t # Edit date


# Results per page	
page_size # page_size
20 # 20
50 # 50
100 # 100
250 # 250
500 # 500
1000 # 1000

#Pagination
page=1

#Format
json=1
xml=1
#to search results pages on the web site to get results in a jQuery Mobile format.
jqm=1

Linked Data

Link to Wikipedia and Wikidata

Whenever possible, Open Food Facts entities are linked to Wikidata, and in turn to Wikipedia. What this means is that you get access to a trove of additional encyclopedic knowledge about food. You can for instance get: Wikipedia articles about Camembert, the translation of salt in many languages, the molecular structure of a cosmetic ingredientā€¦
We provide the Wikidata QID, which is an unambiguous, stable and reliable identifier for a concept that will be useful to actually retrieve info from Wikipedia and Wikidata.

Example

https://world.openfoodfacts.net/categories.json 

{"linkeddata":{"wikidata:en":"Q40050"},"url":"https://world.openfoodfacts.net/category/beverages","name":"Beverages","id":"en:beverages","products":14196}

Beverages >> https://world.openfoodfacts.org/category/beverages >> Q40050 >> https://www.wikidata.org/wiki/Q40050
As you see, you'll get a beautiful image, information about the Quality labelā€¦ As Wikidata is a Wiki, the knowledge you'll be able to retrieve will increase over time.

Retrieving info from Wikipedia and Wikidata

You can use the Wikipedia and Wikidata APIs to get the information you want

Examples of things you can do

  • Provide more context and more information about a specific Product, a Category of products, a Quality label, a Geography, a Brand, a Packaging material, an ingredientā€¦
  • Perform checks or computations by mixing Wikidata information and Open Food Facts information (and possibly other APIs)
Retrieved from "https://test-wiki.openfoodfacts.org/index.php?title=API/Read&oldid=7076"