Fix #1044

Author: martinnj

meilisearch/_httprequests.py

@@ -60,7 +60,12 @@ def send_request(
                     data=body,
                 )
             else:
-                data = json.dumps(body, cls=serializer) if body else "" if body == "" else "null"
+                serialize_body = isinstance(body, dict) or body
+                data = (
+                    json.dumps(body, cls=serializer)
+                    if serialize_body
+                    else "" if body == "" else "null"
+                )
 
                 request = http_method(
                     request_path, timeout=self.config.timeout, headers=self.headers, data=data

meilisearch/index.py

@@ -397,17 +397,8 @@ def get_documents(
         MeilisearchApiError
             An error containing details about why Meilisearch can't process your request. Meilisearch error codes are described here: https://www.meilisearch.com/docs/reference/errors/error_codes#meilisearch-errors
         """
-        if parameters is None or parameters.get("filter") is None:
-            if parameters is None:
-                parameters = {}
-            elif "fields" in parameters and isinstance(parameters["fields"], list):
-                parameters["fields"] = ",".join(parameters["fields"])
-
-            response = self.http.get(
-                f"{self.config.paths.index}/{self.uid}/{self.config.paths.document}?{parse.urlencode(parameters)}"
-            )
-            return DocumentsResults(response)
-
+        if parameters is None:
+            parameters = {}
         response = self.http.post(
             f"{self.config.paths.index}/{self.uid}/{self.config.paths.document}/fetch",
             body=parameters,