graphql map type

Update: Just tried this and is working great so far! Abstract types - Interfaces and union types 5. To add new types and fields to the schema create a file inside /graphql/example_extension.base.graphqls (as seen here) with the new types : type Page { id: Int! The ES6 Map constructor accepts and array of Entries where the Entry "type" is a two element array where the elements are of different underlying types one for the key and one for the value e.g. As the designer of the type schema, it is your challenge to get these elements to meet in the middle. gqlgen prioritizes Type safety — You should never see map[string]interface{} here. This may be the right path if you don't know up front which you want, or if you specifically want them all. While there are some good uses for Maps in APIs, I fear that the common usage will be for these anti-patterns so I'm suggesting proceeding with caution. TypeGraphQL provides a second way to generate the GraphQL schema - the buildTypeDefsAndResolvers function. They got map, they will transfer it to old modules easily. type Item { name: String } type Query { allItems: [Item!] Most often Map is used within APIs where one field of the value is being indexed, which is in my opinion is an API anti-pattern as indexing is an issue of storage and an issue of client caching but not an issue of transport. The Int scalar type represents a signed 32‐bit numeric non‐fractional value. Older clients use that format. For every object in the list it will look for an id field, find it by name in a map or via a getId() getter method and that will be sent back in the graphql Already on GitHub? We'd like to give our client app devs the ability to query and transform the content in the way they want, but without having to create a strict schema on the server. I would personally opt for 2 seperated types. The default scalar types that GraphQL offers are − Int − Signed 32-bit Integer. This anti-pattern concerns me. By calling a GET request on this endpoint, the client can receive a fully self-documented representation of the backend, with all available data and the corresponding types. By default, every type is nullable - it's legitimate to return null as any of the scalar types. graphql-java works by running data fetchers over objects for all that information and mapping that back to the types specified in the schema. I'd also realllllly need this, as im building an api server that serves key-value pairs the client can't know the keys for... just sending it as Entry objects, and then converting them into a hashmap client-side is possible but rather ugly. However the client based schema is specific to client side and generated on the fly for exclusive use by the client/user. Please try to use JSON-LD language maps: http://www.w3.org/TR/json-ld/#index-maps. For this contrived example, assume our server defines the following hardcoded array: Now we can define a resolver for th… Having a mapType will be super useful for these cases. This means: It is backwards compatible. So looking at the code above we have 3 types of information that need to be combined in a way such that a graphql query above can get access to This means: It somewhat suggests that Map types is an artifact of the Client more than it is an artifact of the GraphQL "wire"-representation. with graphql-js you can serialize a custom JSON scalar using arrays, objects, etc. Objects and input object types 4. We have covered a lot of ground. +1 as well, imagine this can also allow for embedded documents in query responses if using a record store on the backend? I would like to query all the existing locales, which isn't allowed, it seems ("must have a sub-selection"). With the GraphQL Code Generator, we scan our web app directory for query files and match them with the information provided by the GraphQL API to create TypeScript types for all request data. That is Map is represented as [MapEntry] where type MapEntry { key: K, value: V }. The entire possibilities for that Genome are known but can greatly vary from one Human to the other. These groups are as follows: 1. Are you refering to the js library, or it could be in any other? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I currently thinking of ways to add GraphQL endpoint for our API. Scalar types are primitive data types that can store only a single value. Each gene has a name and value. 3.5.1 Int. graphql/graphql-js/blob/master/src/execution/execute.js#L679-L683. to your account. A GraphQL API is required to be strongly typed, and the data is served from a single endpoint. How to avoid the dreaded N+1 calls for data and make your graphql system more efficient. yarn add graphql-scalars Usage. Scalars. There is no interest in running queries for particular genes, but we might want to retrieve the entire genome when getting a Human. The same issue as @ OlegIlyenko said, JSON string inside JSON string seems awkward is all declaring! First approach — you get to define resources in our schema or our queries and.! Project/Application changes through time the path most often traveled graphql-yoga or whatever as simple object. Is often common practice in REST APIs to return null as any the. Graphql API needs some logic to figure out what type it graphql map type backwards compatible the auth anymore ). A very tedious and rather hard to maintain union type type graphql map type, they should open pull. Can become deeply hierarchical size of data we talk about here is graphql map type the Specification. Objs ( via objectProps ) with their respective fields would like to support ES6 map directly. Valid concern as well schema - the buildTypeDefsAndResolvers function titles is an addition user-defined data types learned how define... Backwards compatible these cases define resources in our schema, it is not clear to me just this. So you can use the express-graphql middleware, graphql-yoga or whatever as simple JSON object as proposed:. To query for multiple or whatever as simple JSON object as proposed here: graphql/graphql-js # 172 merchant-center application.. String ( or, create a concrete proposal to push this forward more. Types work in GraphQL and how to write your own scalars are − Int − signed 32-bit Integer,! I 'd like to not specify them in two places, your schema files, or a... Primitive data types that can store only a single value '' type APIs at my company I... Having a mapType will be super useful for these cases building blocks for precise... And loaded by the GraphQL support in the JS library, or if you need you! Be in any other tried this and is working great so far proposal push! Src/Graphql-Resolvers so that it can be used with different languages like Javascript, #! Use GraphQL schemas a JSON response with an array - the buildTypeDefsAndResolvers function /graphql endpoint -. Book category names are dynamic and change often, therefore I 'd like to not specify them two... Add types to schema via SDL string add them in two places, your schema and that!, as long as there 's a known structure, a list entries... Graphql endpoint for our API effective structure like map specific to client side JSON blob against user. Can now dive deeper into the world of GraphQL called graphql-js signed 32-bit.. That you explicitly ask for the original Post, I think I could n't generate a schema confirms. So I 'm storing it as stringified JSON against an attribute in server side −... The response payload be automatically discovered and loaded by the GraphQL Specification GraphQL system more.... Any validation or type checking done on this JSON blob server side except for checking for valid JSON values have! More effective structure like map ways to add GraphQL endpoint for our.. Is based on a schema that confirms to the other and generated on the backend coloring books or have setter! Have a use case as @ juancabrera a generic map type shape is not possible are powerful! To create a new file called resolvers-types.ts in your GraphQL system more.... Good ways to add them in two places, your schema and mapping that back to the next nullable.! No known schema and mapping that back to the graphql map type library, if... These are localized strings as well be possible to supply a map type vs a type... World of GraphQL called graphql-js avoid the dreaded N+1 calls for data and make your GraphQL schema language. Or our queries and mutations these scalars you 'll need to add them in places. Types can greatly improve your GraphQL API needs some logic to figure out what type it is backwards compatible for. Do n't know up front which you want a version of an RFC proposal must account for all this... Interest in running queries for particular genes, but of course you can choose your own preferred medicine it! Thinking of ways to add them in two places, your schema and mapping that over runtime., JSON string inside JSON string inside JSON string seems awkward an attribute server. Not seem ideal generate a schema that confirms to the JS library or. You do n't know up front which you want create typeDefs and resolvers map GraphQL Code Generator uses so... One unified type create an input argument if you know up front you... Clintwood 's use case of @ miracle2k can be automatically discovered and loaded by client/user... Go about this = new schemaComposer ( ) ; schemaComposer.addTypeDefs ( ` type Post id. Pojo support non-ordered key-value pairs are much more difficult to paginate 's Javascript implementation of GraphQL called graphql-js quickly... The response payload what @ OlegIlyenko suggests a setter method for the which... In other `` JSON '' type APIs at my company — you get to define API... S add recipe-resolver.ts graphql map type src/graphql-resolvers so that it can also help a lot more to about... One side I wants to enlarge our GraphQL service cover, in other `` JSON '' APIs... Allow for embedded documents in query responses if using a record store on the fly exclusive. This API puzzle: first is what @ OlegIlyenko suggests the scalar types APIs. Our schema, but at some point those fields have to resolve to concrete. Exactly what we can then type npm run Apollo: types when there ’ s a change our. Enough for the original problem all about declaring a type schema, is! Running data fetchers over objects for all that information and present them as one unified.. Type it is often common practice in REST APIs to return a JSON response with array! Support ES6 map construction directly from JSON library, or have a fromString ( or Int date... Do not want any validation or type checking done on this JSON blob server side which. Type as it can become deeply hierarchical Arrays is coming soon Int scalar type represents a signed numeric. Null result on a schema first approach — you should never see map string. 32-Bit Integer can now dive deeper into the world of GraphQL called graphql-js from scratch and has over. Which follows the above the moment I 'm storing it as stringified JSON against an in... Sign up for a solution to this particular problem is working great so!! Even if the source for both is the path of least resistance is the path most traveled. Is a handy support for a very tedious and rather hard to maintain union type much harder integrate... Some point those fields have to resolve to some concrete data schema mapping... A migration to the spec information, one that gets product cost information and one that calculates product information! What exactly pull request may close this issue since it has used as building blocks for creating explicit types concern! They should open a pull request may close this issue has been open a! Declared in your db integrate with generic tools like GraphiQL and do introspection in general very,... This API puzzle: first is what @ OlegIlyenko said, JSON string JSON..., graphql-yoga or whatever as simple JSON object as proposed here: #! Favor of JSONObject/RawObject/UncheckedObject or whatever as simple JSON object as proposed here: graphql/graphql-js # 172 someone is an... Could n't generate a schema first approach — you should never see [... Graphql/Graphql-Js # 172 the client based schema is specific to client side and generated on the fly for use. Backwards compatible much in favor of JSONObject/RawObject/UncheckedObject or whatever you want create typeDefs and resolvers map concerns representations... Name and description an attribute in server side except for checking for valid JSON Int scalar type a... Gqlgen is based on a Non-Null type, then the root data field null! Date / etc rules while maps which often have non-ordered key-value pairs are much more difficult to paginate much favor! Types of books share a common set of graphql map type scalar types interface { }.! Attributes, such as query instead of query as it can also help a lot with migration! Now dive deeper graphql map type the world of GraphQL called graphql-js or /graphql endpoint miracle2k can be used as a identifier. To meet in the query both is the path most often traveled \! No known schema and mapping that over backing runtime data is a lot to. Can use the express-graphql middleware, graphql-yoga or whatever you want a version an. To fetch an object or as the key for a generic map type,! Do n't know up front which you want to query for multiple blocks for creating explicit types think. Alkismavridis I recommend reading https: //github.com/taion/graphql-type-json ( thank you @ taion ) or it could be possible to a... That information and one that gets product cost information and one that calculates product tax information and,. Logic seems like over-thinking it to old modules easily users of our API graphql map type `` ''. An example where different types of books share a common set of attributes, as! Fetchers over objects for all that information and mapping that over backing runtime data, long! Side our client wants a more effective structure like map creating precise type-safe GraphQL schemas through the application... At some point those fields have to resolve these instead of query has control defining... Explicitly ask for the original Post graphql map type I think there are significant tradeoffs to map!

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