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ApolloHooksMutation.re
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ApolloHooksMutation.re
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open ApolloHooksTypes;
type jsResult = {
.
"data": Js.Nullable.t(Js.Json.t),
"loading": bool,
"called": bool,
"error": Js.Nullable.t(apolloError),
};
type jsExecutionResult = {
.
"data": Js.Nullable.t(Js.Json.t),
"errors": Js.Nullable.t(array(graphqlError)),
};
type refetchQueries = jsExecutionResult => array(ApolloClient.queryObj);
/* The type that the promise returned by the mutate function resolves to */
type executionResult('a) = {
data: option('a),
errors: option(array(graphqlError)),
};
type executionVariantResult('a) =
| Data('a)
| Errors(array(graphqlError))
| NoData;
/* The type of the 'full' result returned by the hook */
type controlledResult('a) = {
loading: bool,
called: bool,
data: option('a),
error: option(apolloError),
};
/* The type of the 'simple' result returned by the hook */
type controlledVariantResult('a) =
| Loading
| NotCalled
| Data('a)
| Error(apolloError)
| NoData;
[@bs.module "graphql-tag"] external gql: ReasonApolloTypes.gql = "default";
type mutationResult('a) = {. "data": option('a)};
[@bs.deriving abstract]
type options('a) = {
[@bs.optional]
variables: Js.Json.t,
[@bs.optional]
mutation: option(ReasonApolloTypes.queryString),
[@bs.optional]
client: ApolloClient.generatedApolloClient,
[@bs.optional]
refetchQueries,
[@bs.optional]
awaitRefetchQueries: bool,
[@bs.optional]
update: (ApolloClient.generatedApolloClient, mutationResult('a)) => unit,
[@bs.optional]
optimisticResponse: Js.Json.t,
[@bs.optional]
errorPolicy: string,
[@bs.optional]
context: Context.t,
};
type jsMutate('a) = (. options('a)) => Js.Promise.t(jsExecutionResult);
type mutation('a) =
(
~variables: Js.Json.t=?,
~client: ApolloClient.generatedApolloClient=?,
~refetchQueries: refetchQueries=?,
~awaitRefetchQueries: bool=?,
~optimisticResponse: Js.Json.t=?,
unit
) =>
Js.Promise.t((executionVariantResult('a), executionResult('a)));
[@bs.module "@apollo/react-hooks"]
external useMutationJs:
(. ReasonApolloTypes.queryString, options('a)) => (jsMutate('a), jsResult) =
"useMutation";
exception Error(string);
let useMutation:
(
~client: ApolloClient.generatedApolloClient=?,
~variables: Js.Json.t=?,
~refetchQueries: refetchQueries=?,
~awaitRefetchQueries: bool=?,
~update: (ApolloClient.generatedApolloClient, mutationResult('data)) =>
unit
=?,
~optimisticResponse: Js.Json.t=?,
~errorPolicy: ApolloHooksTypes.errorPolicy=?,
~context: Context.t=?,
ApolloHooksTypes.graphqlDefinition('data, _, _)
) =>
(
mutation('data),
controlledVariantResult('data),
controlledResult('data),
) =
(
~client=?,
~variables=?,
~refetchQueries=?,
~awaitRefetchQueries=?,
~update=?,
~optimisticResponse=?,
~errorPolicy=?,
~context=?,
(parse, query, _),
) => {
let (jsMutate, jsResult) =
useMutationJs(.
gql(. query),
options(
~client?,
~variables?,
~refetchQueries?,
~awaitRefetchQueries?,
~update?,
~optimisticResponse?,
~errorPolicy=?
errorPolicy->Belt.Option.map(ApolloHooksTypes.errorPolicyToJs),
~context?,
(),
),
);
let mutate =
React.useMemo1(
(
(),
~variables=?,
~client=?,
~refetchQueries=?,
~awaitRefetchQueries=?,
~optimisticResponse=?,
(),
) =>
jsMutate(.
options(
~variables?,
~client?,
~refetchQueries?,
~awaitRefetchQueries?,
~optimisticResponse?,
(),
),
)
|> Js.Promise.then_(jsResult => {
let full = {
data:
Js.Nullable.toOption(jsResult##data)
->Belt.Option.map(parse),
errors:
switch (Js.Nullable.toOption(jsResult##errors)) {
| Some(errors) when Js.Array.length(errors) > 0 =>
Some(errors)
| _ => None
},
};
let simple =
switch (full) {
| {errors: Some(errors)} => (
Errors(errors): executionVariantResult('data)
)
| {data: Some(data)} => Data(data)
| {errors: None, data: None} => NoData
};
(simple, full) |> Js.Promise.resolve;
}),
[|variables|],
);
let full =
React.useMemo1(
() =>
{
loading: jsResult##loading,
called: jsResult##called,
data:
jsResult##data->Js.Nullable.toOption->Belt.Option.map(parse),
error: jsResult##error->Js.Nullable.toOption,
},
[|jsResult|],
);
let simple =
React.useMemo1(
() =>
switch (full) {
| {loading: true} => Loading
| {error: Some(error)} => Error(error)
| {data: Some(data)} => Data(data)
| {called: false} => NotCalled
| _ => NoData
},
[|full|],
);
(mutate, simple, full);
};