GQL | Practicas realizadas utilizando graphql | GraphQL library

It sounds like you want to create a single executable artifact which requires no server-side configuration or setup to run.

There are a few options for this. You're probably looking for a Javascript bundler, like Rollup, Parcel or Webpack. Webpack is the most widely used, but also generally the most difficult to configure.

Install Parcel with npm i -g parcel, then, add this to your package.json:

This is basically a duplicate of Apollo Client what are active queries?

The main concept is that Active Queries represents the queries that are running inside of mounted components in your React application. It doesn't mean that the data is cached twice, it means that there are two places in your application that rely on the results of this query.

If the results of the query in cache are updated both places will automatically get the data updates.

No it does not break the spec. The spec forces absolutely nothing in regards caching.

From the end of the overview section

Because of these principles [... one] can quickly become productive without reading extensive documentation and with little or no formal training. To enable that experience, there must be those that build those servers and tools.

The following formal specification serves as a reference for those builders. It describes the language and its grammar, the type system and the introspection system used to query it, and the execution and validation engines with the algorithms to power them. The goal of this specification is to provide a foundation and framework for an ecosystem of GraphQL tools, client libraries, and server implementations -- spanning both organizations and platforms -- that has yet to be built. We look forward to working with the community in order to do that.

As we just saw the spec says nothing about caching or implementation details, that's left out to the community. The rest of the paper proceeds to give details on how the type-system, the language, requests and responses should be handled.

Also note that the document does not mention which underlying protocol is being used (although commonly it's HTTP). You could effectively run GraphQL communication over a USB device or over infra-red light.

We hosted an interesting talk at our tech conferences which you might find interesting. Here's a link:

GraphQL Anywhere - Our Journey With GraphQL Mesh & Schema Stitching • Uri Goldshtein • GOTO 2021

If we "Ctrl+F" ourselves to look for things as "Cache" or "ID" we can find the following section which I think would help get to a conclusion here:

ID The ID scalar type represents a unique identifier, often used to refetch an object or as the key for a cache. The ID type is serialized in the same way as a String; however, it is not intended to be human‐readable. While it is often numeric, it should always serialize as a String.

Result Coercion

GraphQL is agnostic to ID format, and serializes to string to ensure consistency across many formats ID could represent, from small auto‐increment numbers, to large 128‐bit random numbers, to base64 encoded values, or string values of a format like GUID.

GraphQL servers should coerce as appropriate given the ID formats they expect. When coercion is not possible they must raise a field error.

Input Coercion

When expected as an input type, any string (such as "4") or integer (such as 4) input value should be coerced to ID as appropriate for the ID formats a given GraphQL server expects. Any other input value, including float input values (such as 4.0), must raise a query error indicating an incorrect type.

It mentions that such field it is commonly used as a cache key (and that's the default cache key for the Apollo collection of GraphQL implementations) but it doesn't tell us anything about "consistency of the returned data".

Here's the link for the full specification document for GraphQL

Of course all I am about to say has nothing to do with the GraphQL specification

Sometimes an ID is not enough of a piece of information to decide whether to cache something. Let's think about user searches:

If I have a FavouriteSearch entity that has an ID on my database and a field called textSearch. I'd commonly like to expose a property results: [Result!]! on my GraphQL specification referencing all the results that this specific text search yielded.

These results are very likely to be different from the moment I make the search or five minutes later when I revisit my favourite search. (Thinking about a text-search on a platform such as TikTok where users may massively upload content).

So based on this definition of the entity FavouriteSearch it makes sense that the caching behavior is rather unexpected.

If we think of the problem from a different angle we might want a SearchResults entity which could have an ID and a timestamp and have a join-table where we reference all those posts that were related to the initial text-search and in that case it would make sense to return a consistent content for the property results on our GraphQL schema.

Thing is that it depends on how we define our entities and it's ultimately not related to the GraphQL spec

You can specify how Apollo generates the key for later use as key on the cache as @Matt already pointed in the comments. You may want to tap into that and override that behavior for those entitites that have a __type equal to your masterVariant property type and return NO_KEY for all of them (or similar) in order to avoid caching from your ApolloClient on those specific fields.

I hope this was helpful!

While I was unable to make this work using just JSDoc, I had a good success using the same @graphql-codegen/cli utility and generating .d.ts file instead. After that, I was able to provide correct type hints using the following code:

The error is from the client instead of the mutation so your try-catch cannot catch it. To handle this you can add the error handling to the client, for example:

Instead of using custom directive I used graphql-middleware lib to create middleware that is triggered only when updateOrders mutation is being used.

TL;DR You are missing some resolvers. Your query resolvers are trying to do the job of the missing resolvers. Your resolvers must return data in the right shape.

In other words, your problems are with configuring Apollo Server's resolvers. Nothing Lambda-specific, as far as I can tell.

GraphQL doesn't know how to "resolve" an author's books, for instance. Add a Author {books(parent)} entry to Apollo Server's resolver map. The corresponding resolver function should return a list of book objects (i.e. [Books]), as your schema requires. Apollo's docs have a similar example you can adapt.

Here's a refactored author query, commented with the resolvers that will be called:

You are trying to destructure a property that doesnt exist on the type.
This should work:

I was receiving the same errors. After debugging step by step, the answer is that @nestjs/graphql@9.1.1 is not compatible with GraphQL@16.

Specifically, GraphQL@16 changed the gqaphql function, as called from within graphqlImpl, to only support args without a schema: