Typecast problem

[artem-kliuev]

Apollo version:
apollo-runtime version 0.4.4
apollo-android-support version 0.4.4
apollo-rx2-support 0.4.4

i have a problem with typecasting
LatestEventsQuery latestEvents = LatestEventsQuery.builder() .portal("23ffbb5d-d57c-40aa-ae7d-2415dd1f58e3") .start(new Date().getTime()) .end(new Date().getTime() + DateUtils.WEEK_IN_MILLIS * 8) .build();

okHttpRequest body:
{"query":"query latestEvents($portal: UUID!, $start: DateTime!, $end: DateTime!) { latestEvents(dateRange: {start: $start, end: $end, timezone: \"UTC\"}, portal: $portal) { __typename edges { __typename node { __typename uuid title lastUpdated featuredImage { __typename url(params: {width: 600, height: 400, method: CROP}) } dateRange { __typename start end } locationName } cursor } pageInfo { __typename endCursor hasNextPage } }}","variables":{"portal":"23ffbb5d-d57c-40aa-ae7d-2415dd1f58e3","start":"1519049720683","end":"1523888120683"}}

problem is variables.start is string instead of Long

[sav007]

I see that $start: DateTime! is a grahql custom scalar type. So it will be serialized as string. If you need it to be sent as Long then this graphql field must be declared as Int.

See com.apollographql.apollo.CustomTypeAdapter#encode it always returns String.

[sav007]

Ok, GraphQL spec was abstract to the encode format of custom scalar types, I guess this PR fixes this issue graphql/graphql-spec#326.

We need to allow user to define what Json supported type will be returned as result of com.apollographql.apollo.CustomTypeAdapter#encode