Resolve any JSON/YAML OpenAPI file and resolve common parameters (#132)

* Fix parsing of OpenAPI when content-type is unknown

* Resolve common parameters

* Format

packages/react-openapi/src/fetchOpenAPIOperation.ts

@@ -49,15 +49,30 @@ export async function fetchOpenAPIOperation<Markdown>(
 ): Promise<OpenAPIOperationData | null> {
     const fetcher = cacheFetcher(rawFetcher);
 
-    const operation = await resolveOpenAPI<OpenAPIV3.OperationObject>(
+    let operation = await resolveOpenAPI<OpenAPIV3.OperationObject>(
         input.url,
         ['paths', input.path, input.method],
         fetcher,
     );
+
     if (!operation) {
         return null;
     }
 
+    // Resolve common parameters
+    const commonParameters = await resolveOpenAPI<OpenAPIV3.ParameterObject[]>(
+        input.url,
+        ['paths', input.path, 'parameters'],
+        fetcher,
+    );
+    if (commonParameters) {
+        operation = {
+            ...operation,
+            parameters: [...commonParameters, ...(operation.parameters ?? [])],
+        };
+    }
+
+    // Resolve servers
     const servers = await resolveOpenAPI<OpenAPIV3.ServerObject[]>(input.url, ['servers'], fetcher);
 
     // Resolve securities

src/lib/openapi.ts

@@ -50,15 +50,19 @@ const fetcher: OpenAPIFetcher = {
         let data: unknown = null;
 
         if (response.ok) {
-            if (response.headers.get('content-type')?.includes('yaml')) {
+            const text = await response.text();
+
+            // Try with JSON
+            try {
+                data = JSON.parse(text);
+            } catch (error) {
+                //
+            }
+
+            // Try with YAML
+            if (!data) {
                 try {
-                    data = yaml.load(await response.text());
-                } catch (error) {
-                    //
-                }
-            } else if (response.headers.get('content-type')?.includes('json')) {
-                try {
-                    data = await response.json();
+                    data = yaml.load(text);
                 } catch (error) {
                     //
                 }