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Add table of contents and migration notesgi

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Trevor Blades
2020-03-26 23:39:50 -07:00
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@@ -18,6 +18,12 @@ A public GraphQL API for information about countries, continents, and languages.
2. The `country.continent` and `country.languages` are now objects and arrays of objects, respectively. 2. The `country.continent` and `country.languages` are now objects and arrays of objects, respectively.
3. Each `Country` has an array of `states` populated by their states/provinces, if any. 3. Each `Country` has an array of `states` populated by their states/provinces, if any.
- [Writing queries](#writing-queries)
- [Migration notes (pre-March 2020)](#migration-notes-pre-march-2020)
- [Docs](#docs)
- [Examples](#examples)
- [License](#license)
## Writing queries ## Writing queries
```graphql ```graphql
@@ -56,6 +62,20 @@ The above GraphQL query will produce the following JSON response:
} }
``` ```
### Migration notes (pre-March 2020)
In the first version of this API, `code` arguments were treated as `String`s. Now, they are enums of valid options only. To migrate, simply remove the double quotes from your existing code arguments:
```diff
{
- country(code: "CA") {
+ country(code: CA) {
name
emoji
}
}
```
## Docs ## Docs
Check out [the playground](https://countries.trevorblades.com) to explore the schema and test out some queries. Check out [the playground](https://countries.trevorblades.com) to explore the schema and test out some queries.