Update Ariadne example, add ariadne-codegen to clients (graphql#1373)

Author: rafalp

src/content/code/language-support/python/client/ariadne-codegen.md

@@ -0,0 +1,55 @@
+---
+name: Ariadne Codegen
+description: Generate fully typed Python GraphQL client from any schema and queries.
+url: https://github.com/mirumee/ariadne-codegen
+github: mirumee/ariadne-codegen
+---
+
+Install Ariadne Codegen:
+
+```
+$ pip install ariadne-codegen
+```
+
+Create `queries.graphql` file:
+
+```graphql
+mutation CreateToken($username: String!, $password: String!) {
+    createToken(username: $username, password: $password) {
+        token
+        errors {
+            field
+            message
+        }
+    }
+}
+```
+
+Add `[ariadne-codegen]` section to your `pyproject.toml`:
+
+```
+[ariadne-codegen]
+queries_path = "queries.graphql"
+remote_schema_url = "http://example.com/graphql/"
+```
+
+Generate client:
+
+```
+$ ariadne-codegen
+```
+
+And use it in your Python projects:
+
+```python
+from graphql_client import Client
+
+with Client("http://example.com/graphql/") as client:
+    result = client.create_token(username="Admin", password="Example123)
+
+    if result.errors:
+        error = result.errors[0]
+        raise ValidationError({error.field: error.message})
+
+    auth_token = result.token
+```

src/content/code/language-support/python/server/ariadne.md

@@ -8,36 +8,37 @@ github: mirumee/ariadne
 Ariadne can be installed with pip:
 
 ```bash
-pip install ariadne
+$ pip install ariadne
 ```
 
-It ships with many GraphQL server implementations, enabling easy experimentation:
+Minimal "Hello world" server example:
 
 ```python
-from ariadne import ObjectType, QueryType, gql, make_executable_schema
+from ariadne import ObjectType, gql, make_executable_schema
 from ariadne.asgi import GraphQL
-# Define types using Schema Definition Language (https://graphql.org/learn/schema/)
-# Wrapping string in gql function provides validation and better error traceback
-type_defs = gql("""
+
+type_defs = gql(
+    """
     type Query {
         hello: String!
     }
-""")
-# Bind resolver functions to Query's fields using QueryType
-query_type = QueryType()
-# Resolvers are simple python functions
+    """
+)
+
+query_type = ObjectType("Query")
+
 @query_type.field("hello")
 def resolve_hello(*_):
     return "Hello world!"
-# Create executable GraphQL schema
+
 schema = make_executable_schema(type_defs, query_type)
-# Create an ASGI app using the schema, running in debug mode
+
 app = GraphQL(schema, debug=True)
 ```
 
-Above server can be ran with uvicorn:
+Run the server with uvicorn:
 
 ```
-pip install uvicorn
-uvicorn example:app
+$ pip install uvicorn
+$ uvicorn example:app
 ```