Adjust countries continent filter

README.md

@@ -56,7 +56,7 @@ Check out [the playground](https://countries.trevorblades.com) to explore the sc
 
 The `countries`, `continents`, and `languages` top-level `Query` fields accept an optional `filter` argument that causes results to be filtered on one or more subfields. The `continents` and `languages` fields can be filtered by their `code`, while `countries` can be filtered by `code`, `currency`, or `continent`.
 
-> Note: The `continent` filter on the `Query.countries` field must be the continent code, i.e. "SA" for South America.
+> Note: The `continent` filter on the `Query.countries` field must be a child property called `code`, i.e. `{ continent: { code: { eq: "SA" } } }` for South America.
 
 The filtering logic is powered by [sift](https://github.com/crcn/sift.js) and this API supports the following operators: `eq`, `ne`, `in`, `nin`, and `regex`. To learn more about these operators and how they work, check out [the sift docs](https://github.com/crcn/sift.js#supported-operators).
 

src/graphql.test.ts

@@ -104,3 +104,25 @@ it('returns data about country subdivisions', async () => {
 
   expect(result.data?.country.subdivisions).toHaveLength(4)
 })
+
+it('filters countries by continent code', async () => {
+  const result = await executor({
+    document: ListFilteredCountriesQuery,
+    variables: {
+      filter: {
+        continent: {
+          code: {
+            eq: 'AF',
+          },
+        },
+      },
+    },
+  })
+
+  assertSingleValue(result)
+
+  const afCountries = Object.values(countries).filter(
+    (c) => c.continent === 'AF',
+  )
+  expect(result.data?.countries).toHaveLength(afCountries.length)
+})

src/locales.ts

@@ -1,27 +1,27 @@
-import { registerLocale } from "i18n-iso-countries";
-import de from "i18n-iso-countries/langs/de.json";
-import en from "i18n-iso-countries/langs/en.json";
-import es from "i18n-iso-countries/langs/es.json";
-import fa from "i18n-iso-countries/langs/fa.json";
-import fr from "i18n-iso-countries/langs/fr.json";
-import it from "i18n-iso-countries/langs/it.json";
-import ja from "i18n-iso-countries/langs/ja.json";
-import nl from "i18n-iso-countries/langs/nl.json";
-import pl from "i18n-iso-countries/langs/pl.json";
-import pt from "i18n-iso-countries/langs/pt.json";
-import ru from "i18n-iso-countries/langs/ru.json";
-import tr from "i18n-iso-countries/langs/tr.json";
-import vi from "i18n-iso-countries/langs/vi.json";
-import zh from "i18n-iso-countries/langs/zh.json";
+import { registerLocale } from 'i18n-iso-countries'
+import de from 'i18n-iso-countries/langs/de.json'
+import en from 'i18n-iso-countries/langs/en.json'
+import es from 'i18n-iso-countries/langs/es.json'
+import fa from 'i18n-iso-countries/langs/fa.json'
+import fr from 'i18n-iso-countries/langs/fr.json'
+import it from 'i18n-iso-countries/langs/it.json'
+import ja from 'i18n-iso-countries/langs/ja.json'
+import nl from 'i18n-iso-countries/langs/nl.json'
+import pl from 'i18n-iso-countries/langs/pl.json'
+import pt from 'i18n-iso-countries/langs/pt.json'
+import ru from 'i18n-iso-countries/langs/ru.json'
+import tr from 'i18n-iso-countries/langs/tr.json'
+import vi from 'i18n-iso-countries/langs/vi.json'
+import zh from 'i18n-iso-countries/langs/zh.json'
 
 /**
  * Languages with > 1% estimated usage on the internet
  *
  * @see {@link https://en.wikipedia.org/wiki/Languages_used_on_the_Internet#Content_languages_for_websites}
  */
 
-const locales = [en, ru, es, fr, de, ja, tr, pt, fa, it, zh, nl, pl, vi];
+const locales = [en, ru, es, fr, de, ja, tr, pt, fa, it, zh, nl, pl, vi]
 
 for (const locale of locales) {
-  registerLocale(locale);
+  registerLocale(locale)
 }