[feature request] allow post with empty body

[gunzip]

Expected Behavior

Mutations (PUT, POST) with empty body should be sent to the rest endpoint

Actual Behavior

Actually the client refuses to POST a request with an empty body

[fbartho]

We noticed in the beginning of apollo-link-rest that because it's a bit complicated to configure the body payload, people often accidentally sent bodies with empty payloads.

Do you have any advice, @gunzip, on how we could change this library to better support this feature, while still being safe for newbies? Maybe a magic value? or a new attribute on @rest(…) -- Note: I'd very much prefer not to add a new attribute unless we can't think of a better way to do it.

[gunzip]

something like variables: { body: "" } would suffice. actually I have to setup a custom serializer to do that:

const restLink = new RestLink({
  uri: GATSBY_BACKEND_ENDPOINT,
  bodySerializers: {
    Json: (data: any, headers: Headers) => {
      return {
        body: data,
        headers: { ...headers, "Content-Type": "application/json" }
      };
    },
}

[fbartho]

Oh! That sounds like a great way to do it! Do you think it’s good enough? If so, we could document this as a recipe?

[gunzip]

Well, if I can do this without a custom serializer (ie. body = "" supported directly into the client) I think that would be a nice addition to apolographql

[fbartho]

If somebody wants to implement this, we can take a look.

[fbartho]

Duplicates #198, closing.