Redesigned register_output_renderer plugin hook, closes #581

tests/plugins/register_output_renderer.py

@@ -0,0 +1,42 @@
+from datasette import hookimpl
+import json
+
+
+def render_test_all_parameters(
+    datasette, columns, rows, sql, query_name, database, table, request, view_name, data
+):
+    headers = {}
+    for custom_header in request.args.getlist("header") or []:
+        key, value = custom_header.split(":")
+        headers[key] = value
+    return {
+        "body": json.dumps(
+            {
+                "datasette": datasette,
+                "columns": columns,
+                "rows": rows,
+                "sql": sql,
+                "query_name": query_name,
+                "database": database,
+                "table": table,
+                "request": request,
+                "view_name": view_name,
+            },
+            default=repr,
+        ),
+        "content_type": request.args.get("content_type", "text/plain"),
+        "status_code": int(request.args.get("status_code", 200)),
+        "headers": headers,
+    }
+
+
+def render_test_no_parameters():
+    return {"body": "Hello"}
+
+
+@hookimpl
+def register_output_renderer(datasette):
+    return [
+        {"extension": "testall", "render": render_test_all_parameters},
+        {"extension": "testnone", "callback": render_test_no_parameters},
+    ]