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Design: Microservices Architecture with GraphQL APIs

Anjali Sharma answered on February 2, 2023 Popularity 7/10 Helpfulness 2/10

answer Design: Microservices Architecture with GraphQL APIs

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Design: Microservices Architecture with GraphQL APIs

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GraphQL API gateway, which stitched together the SpaceX GraphQL API, and a generated GraphQL API from a local MongoDB database, allowing us to create an app that records which launches we attended. This use case was a demonstration of how powerful GraphQL gateways can be for a client’s developer experience.

Without this gateway, the client would have needed to query two APIs separately. Instead, GraphQL Mesh helped us quickly generate basic CRUD operations we could perform on our Mongo Database, making our app have user-specific features.

const UserSchema = new Schema(
  {
    name: {
      type: String,
    },
  },
  {
    collection: "users",
  }
);
const User = model("User", UserSchema);
const LaunchesAttendedSchema = new Schema(
  {
    spacexLaunchID: {
      type: String,
    },
    userId: { type: "ObjectId", ref: "User" },
  },
  {
    collection: "launches_attended",
  }
);
const LaunchesAttended = model("LaunchesAttended", LaunchesAttendedSchema);
module.exports = {
  User,
  LaunchesAttended,
};

https://blog.logrocket.com/improve-microservice-architecture-graphql-api-gateways/

Popularity 7/10 Helpfulness 2/10 Language typescript

Source: Grepper

Tags: architecture graphql microservices typescript

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Contributed on Feb 02 2023

Anjali Sharma

0 Answers Avg Quality 2/10

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Evaluate: Microservice Architecture with GraphQL APIs

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Benefits

● Solving the over and under-fetching problem

● More flexible with schema and type system

● Quick response time

● Protocol agnostic

Drawbacks

● Increase complexity

● Caching problems

const mergedSchema = mergeSchemas({
  schemas: [
    chirpSchema,
    authorSchema,
    linkTypeDefs,
  ],
  resolvers: {
    User: {
      chirps: {
        fragment: `... on User { id }`,
        resolve(user, args, context, info) {
          return info.mergeInfo.delegateToSchema({
            schema: chirpSchema,
            operation: 'query',
            fieldName: 'chirpsByAuthorId',
            args: {
              authorId: user.id,
            },
            context,
            info,
          });
        },
      },
    },
  },
});

https://medium.com/@mena.meseha/practice-of-graphql-in-microservice-architecture-e8f2d698f93b

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Source: Grepper

Tags: architecture graphql typescript

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Contributed on Feb 02 2023

Anjali Sharma

0 Answers Avg Quality 2/10

Design: Microservices Architecture with GraphQL APIs

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