It is clear on the d ocumentation: To enable collaboration on a type, you must configure a default query method and a primary key for that type to access its fields. We need to "join" the AddressAPI in order to get more detail about it for a specific user.Īnypoint DataGraph has a feature called "Enable Collaboration" that indicates that a specific Type from the schema can be used to enrich the query, providing information to another type. In our APIs, the relationship is made by an "foreign key" from user to address. On the GraphQL session, when we were modeling the schema, there was a relationship between User and Address object directly. Do I need to perform another request to Address API get it? The answer is NO and let's learn another feature. Worked like a charm! The request was sent to the single endpoint and the result was according to I expected from my query.īut wait! What if I need to query for the street name and number for this user? How can I do that? There is only the ID of the address in my User object. The same concept of external application to consume your APIs, when you configure it on the API Manager. On the first time you try to run a query, DataGraph will ask you to inform a client application or a Client ID + Secret to manage your access.
The result would be something like this: "data" : Run a Query" button. We interpret this as a query to retrieve the id, name, street and number from an User. Query type as the name suggest, is used to fetch information from the mapped services and the Mutation type is used to create or modify data. These are very similar to other object types, but they have a special function defining an entry point of every GraphQL query. The following types are defined by GraphQL: Query and Mutation TypesĮvery GraphQL server has a query and may or may not have a mutation type. The service will receive the Query and will orchestrate the calls among the mapped data sources (APIs, database, files and so on) that will return the queried information.Ī GraphQL service is created by defining types and fields on those types, then providing functions for each field on each type. GraphQL is not a programming language, it is a specification of a language used to query application servers that implements this.Ĭlients use the GraphQL query language to make requests to a GraphQL service.
#2715 METALAX DATAGRAPH CODE#
GraphQL isn't tied to any specific database or storage engine and is instead backed by your existing code and data." Definition by
"GraphQL is a query language for your API, and a server-side runtime for executing queries using a type system you define for your data.
That´s where Anypoint Datagraph comes to play.īut before we talk about Anypoint Datagraph, let's understand the concepts and technologies behind of it. We need to move from "some additional work" to "NO additional work" phase. This "additional work" can bring complexity and take time to be executed. We call the excess of information "over-fetching". Rest APIs are consumed one API at a time, so depending on the requirement, it is necessary to write multiple requests in order to retrieve the necessary information that is, your ProcessAPI will orchestrate some requests on SystemAPIs or even other ProcessAPIs in order to return the expected result to the consumers.Īnother "problem" is that for each request, you will get all the fields described on the API contract (raml, swagger.) and the consumer sometimes doesn´t need all of them, in this case, some additional transformations need to be created in order to remove unnecessary fields. It aims to reduce the delivery gap that exists from IT sectors because of the fast technology evolution.ĭespite that, when there is a new requirement where the current APIs in you Application Network does not meet, it is necessary some additional work in order to meet this. Everybody knows that Mulesoft with its several connectors, assets, templates, tools and so on, in combination with a good API modeling, basically following API-led principles, results in an impressive high performance when it is necessary to create a new API.
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