Pretty print graphql query?

[clement911]

Is it possible to use this package to pretty print a graphql query? By pretty-print, I mean that it should format it with indentation, similar to how GraphiQL can prettify the query.

[Shane32]

Yes; see the example in the readme here.

[clement911]

The example you pointed out seems to output in a format that is not graphql. My goal is to output the same query passed as input, except with indentation.

[Shane32]

Try the code sample; it will work. The sample output immediately above doesn’t correspond with the code sample.

[Shane32]

(The sample output is of StructurePrinter but you want the SDLPrinter which is what the code sample uses.)

[Shane32]

Feel free to post a PR that clarifies the readme file. It should probably have a section discussing the SDLPrinter with sample input and output, and a list of available options.

[clement911]

You're right it works. The sample is correct except I had to remove the using (GraphQLDocument doesn't implement IDisposable).

Thank you @Shane32

[clement911]

If anyone else is looking, the following code is simpler:

public static string Prettify(string query)
{
    var document = Parser.Parse(query);
    return new SDLPrinter().Print(document);
}

[clement911]

I'm reopening this issue and it seems we've found a potential bug. When prettifying a mutation, the mutation keyword is removed from the output.

string query = Prettify("mutation { bulkOperationCancel { bulkOperation { id } } }");

Result:

{
  bulkOperationCancel {
    bulkOperation {
      id
    }
  }
}

[Shane32]

Opened new issue. Pretty significant bug. Should be a quick fix though.