OrchardCMS/OrchardCore · error · InvalidOperationException

Unable to create a graphqlrequest from this request

Error message

Unable to create a graphqlrequest from this request

What it means

GraphQLMiddleware.ExecuteAsync builds a GraphQLNamedQueryRequest from the POST body or GET query string. If no request could be constructed (deserialize returned null, unsupported content type, or non-GET/POST method), it throws this InvalidOperationException, which is written back to the client as a GraphQL error "An error occurred while processing the GraphQL query".

Solutions

1. Send a POST with Content-Type application/json and a body like {"query":"{ ... }"}.
2. Verify the Content-Type header matches the body (application/json or application/graphql).
3. For GET requests, include ?query=<graphql> in the URL.
4. For form/urlencoded POSTs, pass the query in the ?query= query string parameter.

Example fix

// before
fetch('/api/graphql', { method: 'POST' }) // no content-type, no body
// after
fetch('/api/graphql', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ query: '{ me { id } }' }) })

// client-side check before calling the API
if (!body || typeof body !== 'object' || typeof body.query !== 'string') {
    throw new Error('POST body must be JSON with a "query" string');
}

function isGraphQlRequest(body) {
    return typeof body === 'object' && body !== null && typeof body.query === 'string' && body.query.trim().length > 0;
}

const res = await fetch('/api/graphql', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body });
const result = await res.json();
if (result.errors?.some(e => e.message.includes('processing the GraphQL query'))) {
    // request never executed: fix body/content-type before retry
}

When it happens

Trigger: POST with a JSON content-type whose body deserializes to null for GraphQLNamedQueryRequest; POST with an unsupported content type that also lacks a 'query' query string parameter (CreateRequestFromQueryString returns null); or a non-POST/GET request to the GraphQL path.

Common situations: Clients sending empty bodies or malformed JSON to /api/graphql, missing or wrong Content-Type header (e.g. text/plain or form-urlencoded without ?query=), tools defaulting to PUT.

Understand the failure class

Background: "missing required argument" and "the following required arguments were not provided": what required-argument errors mean and how to fix them — this error's family across 20 libraries.

Related errors

• Unknown token type
• Deserializing a is not supported.
• Unexpected token type
• Unexpected token parsing TimeSpan. Expected a string, got
• Unable to convert ' ' to TimeSpan.

AI-assisted analysis of OrchardCMS/OrchardCore@4306c0717f (2026-09-13). Data as JSON: /api/errors/b1bda076cfc5eee7. Report an issue: GitHub.

Appendix: source

Thrown at src/OrchardCore.Modules/OrchardCore.Apis.GraphQL/GraphQLMiddleware.cs:127

                    }
                    else
                    {
                        request = _graphQLTextSerializer.Deserialize<GraphQLNamedQueryRequest>(await sr.ReadToEndAsync());
                    }
                }
                else
                {
                    request = CreateRequestFromQueryString(context);
                }
            }
            else if (HttpMethods.IsGet(context.Request.Method))
            {
                request = CreateRequestFromQueryString(context, true);
            }

            if (request == null)
            {
                throw new InvalidOperationException("Unable to create a graphqlrequest from this request");
            }
        }
        catch (Exception e)
        {
            await _serializer.WriteErrorAsync(context, "An error occurred while processing the GraphQL query", e);
            _logger.LogError(e, "An error occurred while processing the GraphQL query.");

            return;
        }

        var queryToExecute = request.Query;

        if (!string.IsNullOrEmpty(request.NamedQuery))
        {
            var namedQueries = context.RequestServices.GetServices<INamedQueryProvider>();

            var queries = namedQueries
                .SelectMany(dict => dict.Resolve())

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