Update standard server example (#870)

* Update standard server example

* Unify curl

Author: spawnia

examples/00-hello-world/README.md

@@ -1,6 +1,7 @@
 # Hello world
+
 Clean and simple single-file example of main GraphQL concepts originally proposed and 
-implemented by [Leo Cavalcante](https://github.com/leocavalcante)
+implemented by [Leo Cavalcante](https://github.com/leocavalcante).
 
 ### Run locally
 ```
@@ -9,10 +10,10 @@ php -S localhost:8080 ./graphql.php
 
 ### Try query
 ```
-curl http://localhost:8080 -d '{"query": "query { echo(message: \"Hello World\") }" }'
+curl -d '{"query": "query { echo(message: \"Hello World\") }" }' -H "Content-Type: application/json" http://localhost:8080
 ```
 
 ### Try mutation
 ```
-curl http://localhost:8080 -d '{"query": "mutation { sum(x: 2, y: 2) }" }'
+curl -d '{"query": "mutation { sum(x: 2, y: 2) }" }' -H "Content-Type: application/json" http://localhost:8080
 ```

examples/00-hello-world/graphql.php

@@ -2,10 +2,13 @@
 
 declare(strict_types=1);
 
-// Test this using following command
-// php -S localhost:8080 ./graphql.php &
+// Test this using the following command:
+// php -S localhost:8080 graphql.php
+
+// Try the following example queries:
 // curl http://localhost:8080 -d '{"query": "query { echo(message: \"Hello World\") }" }'
 // curl http://localhost:8080 -d '{"query": "mutation { sum(x: 2, y: 2) }" }'
+
 require_once __DIR__ . '/../../vendor/autoload.php';
 
 use GraphQL\GraphQL;

examples/02-schema-definition-language/README.md

@@ -10,10 +10,10 @@ php -S localhost:8080 ./graphql.php
 
 ### Try query
 ```
-curl http://localhost:8080 -d '{"query": "query { echo(message: \"Hello World\") }" }'
+curl -d '{"query": "query { echo(message: \"Hello World\") }" }' -H "Content-Type: application/json" http://localhost:8080
 ```
 
 ### Try mutation
 ```
-curl http://localhost:8080 -d '{"query": "mutation { sum(x: 2, y: 2) }" }'
+curl -d '{"query": "mutation { sum(x: 2, y: 2) }" }' -H "Content-Type: application/json" http://localhost:8080
 ```

examples/03-server/README.md renamed to examples/03-standard-server/README.md

@@ -1,7 +1,7 @@
 # Hello world
-Same example as 00-hello-world, but uses 
-[Standard Http Server](https://webonyx.github.io/graphql-php/executing-queries/#using-server)
-instead of manual parsing of incoming data.
+
+Same as the Hello World example, but uses the [Standard Http Server](https://webonyx.github.io/graphql-php/executing-queries/#using-server)
+instead of manually parsing the incoming data.
 
 ### Run locally
 ```

examples/03-server/graphql.php renamed to examples/03-standard-server/graphql.php

@@ -1,14 +1,20 @@
 <?php
-// Test this using following command
-// php -S localhost:8080 ./graphql.php &
+
+declare(strict_types=1);
+
+// Test this using the following command:
+// php -S localhost:8080 graphql.php
+
+// Try the following example queries:
 // curl http://localhost:8080 -d '{"query": "query { echo(message: \"Hello World\") }" }'
 // curl http://localhost:8080 -d '{"query": "mutation { sum(x: 2, y: 2) }" }'
+
 require_once __DIR__ . '/../../vendor/autoload.php';
 
+use GraphQL\Server\StandardServer;
 use GraphQL\Type\Definition\ObjectType;
 use GraphQL\Type\Definition\Type;
 use GraphQL\Type\Schema;
-use GraphQL\Server\StandardServer;
 
 try {
     $queryType = new ObjectType([
@@ -19,9 +25,9 @@
                 'args' => [
                     'message' => ['type' => Type::string()],
                 ],
-                'resolve' => function ($rootValue, $args) {
+                'resolve' => static function ($rootValue, array $args): string {
                     return $rootValue['prefix'] . $args['message'];
-                }
+                },
             ],
         ],
     ]);
@@ -35,7 +41,7 @@
                     'x' => ['type' => Type::int()],
                     'y' => ['type' => Type::int()],
                 ],
-                'resolve' => function ($calc, $args) {
+                'resolve' => static function ($calc, array $args): int {
                     return $args['x'] + $args['y'];
                 },
             ],
@@ -51,11 +57,9 @@
 
     // See docs on server options:
     // https://webonyx.github.io/graphql-php/executing-queries/#server-configuration-options
-    $server = new StandardServer([
-        'schema' => $schema
-    ]);
+    $server = new StandardServer(['schema' => $schema]);
 
     $server->handleRequest();
-} catch (\Exception $e) {
+} catch (Throwable $e) {
     StandardServer::send500Error($e);
 }

phpcs.xml.dist

@@ -10,9 +10,7 @@
     <arg value="nps" />
 
     <file>benchmarks</file>
-    <file>examples/00-hello-world</file>
-    <file>examples/01-blog</file>
-    <file>examples/02-schema-definition-language</file>
+    <file>examples</file>
     <file>src</file>
     <file>tests</file>
 

phpstan.neon.dist

@@ -5,9 +5,7 @@ parameters:
 
     paths:
         - %currentWorkingDirectory%/benchmarks
-        - %currentWorkingDirectory%/examples/00-hello-world
-        - %currentWorkingDirectory%/examples/01-blog
-        - %currentWorkingDirectory%/examples/02-schema-definition-language
+        - %currentWorkingDirectory%/examples
         - %currentWorkingDirectory%/src
         - %currentWorkingDirectory%/tests