16
32%
BSD-2-Clause
neglectedBuckleScript interface to create GraphQL Custom Scalar types
bs-graphql-scalar
BuckleScript utilities for creating new GraphQL scalar types.
Getting Started
To create a new scalar using the graphql JavaScript libary, you need three functions:
serialize- Used when serializing results to send back to the client.parseValue- Used to parse input that was provided as variables by the client.parseLiteral- Used to parse input that was provided inline in the query.
Example
- RE
- ML
let serializeDateTime = (value) =>
value |> Js.Date.getTime |> Js.Float.toString |> Js.Nullable.return;
let parseDateTimeValue = (str) =>
str |> Js.Date.fromString |> Js.Nullable.return;
let parseDateTimeLiteral = (ast) => {
open Language;
let kind = getAstKind(ast);
if (kind === intKind) {
ast |> getAstValue |> TextUtils.parseInt_(10) |> Js.Nullable.return
} else {
Js.Nullable.null
}
};
let resolvers = {
"DateTime":
makeScalar({
"name": "DateTime",
"description": "DateTime custom scalar Type",
"serialize": serializeDateTime,
"parseValue": parseDateTimeValue,
"parseLiteral": parseDateTimeLiteral
}),
};let serializeDateTime value =
((value |> Js.Date.getTime) |> Js.Float.toString) |> Js.Nullable.return
let parseDateTimeValue str =
(str |> Js.Date.fromString) |> Js.Nullable.return
let parseDateTimeLiteral ast =
let open Language in
let kind = getAstKind ast in
if kind == intKind
then
((ast |> getAstValue) |> (TextUtils.parseInt_ 10)) |>
Js.Nullable.return
else Js.Nullable.null
let resolvers =
[%bs.obj
{
DateTime =
(makeScalar
([%bs.obj
{
name = "DateTime";
description = "DateTime custom scalar Type";
serialize = serializeDateTime;
parseValue = parseDateTimeValue;
parseLiteral = parseDateTimeLiteral
}]))
}]