PHP code example of x-graphql / schema-transformer

1. Go to this page and download the library: Download x-graphql/schema-transformer library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

x-graphql / schema-transformer example snippets


use GraphQL\GraphQL;
use GraphQL\Utils\SchemaPrinter;
use XGraphQL\HttpSchema\HttpDelegator;
use XGraphQL\HttpSchema\HttpSchemaFactory;
use XGraphQL\SchemaTransformer\AST\PrefixRootFieldsNameTransformer;
use XGraphQL\SchemaTransformer\SchemaTransformer;

$delegator = new HttpDelegator('https://countries.trevorblades.com/');
$schema = HttpSchemaFactory::createFromIntrospectionQuery($delegator);
$transformedSchema = SchemaTransformer::transform(
  $schema,
  [
     new PrefixRootFieldsNameTransformer('XGraphQL_'),
  ],
);

$query = <<<'GQL'
query getCountries {
  XGraphQL_countries {
    name
  }
}
GQL;

var_dump(SchemaPrinter::doPrint($transformedSchema));

$result = GraphQL::executeQuery($transformedSchema, $query);

var_dump($result->data);