WTO: Write categories in JSON repo

Child of #2 (closed)

Story

• As an economist,
• I want to navigate in the categories tree of WTO,
• In order to find a dataset from this provider.

Acceptance criteria

provider.json

• At the root of the JSON repository of the provider, provider.json MUST exist.
• provider.json MUST contain a categories property.
• The categories property of provider.json MUST have a value which is a list of strings each being the name of a directory at the same level of provider.json.
• Each category MUST have a name in accordance with the data tree section of the fetcher description (see below).

category.json

• In each category directory, category.json MUST exist
• category.json MUST contain a categories property IF the current category has child categories.
• category.json MUST contain a name property which value is the current directory name.
• category.json MUST contain a category_code property which value is given in the data tree section of the fetcher description (see below).

Resources

Fetcher description.

Data tree

• category: code: annual, name: Annual trade data
  • dataset: code: a1, name: WTO-UNCTAD-ITC annual trade in services dataset
  • dataset: code: a2, name: WTO merchandise trade values annual dataset
  • dataset: code: a3, name: WTO merchandise trade indices annual dataset
• category: code: quater, name: Quaterly trade data
  • dataset: code: q1, name: Quarterly merchandise trade value
  • dataset: code: q2, name: Quarterly, name: merchandise trade volume
  • dataset: code: q3: name: Quarterly trade in commercial services value
• category: code: month, name: Monthly trade data
  • dataset: code: m1, name: Monthly merchandise trade value
  • dataset: code: m2, name: Monthly trade in commercial services value
  • dataset: code: m3, name: Monthly changes in export and import price of manufactured goods