Techdozo

gRPC / Microservices

gRPC for microservices communication

Microservices inter-process communication using gRPC

A microservices-based software system requires applications to talk to each other using an inter-process communication mechanism. gRPC is a modern inter-process communication system that is scalable and more efficient than the traditional RESTful services.

Pankaj
August 29, 2021

Microservices

Distributed Transactions in Microservices: implementing Saga with Temporal

Distributed transaction in microservices using Saga

An important design principle of microservices architecture is database per service pattern i.e. domain data is encapsulated within a service and if other services need data then they do so by calling the APIs. This design principle brings one interesting challenge - coordinating writes to more than one service as a single business transaction.

Pankaj
November 8, 2022

Microservices

Workflow Orchestration with Temporal and Spring Boot

Temporal is an open-source, workflow-as-code workflow orchestration platform. In Temporal, you define workflow steps (called Activities) in code using constructs of language-specific client SDK.

Pankaj
October 29, 2022

GraphQL

GraphQL Directive

A GraphQL directive is a way to add an extra behavior by annotating parts of the GraphQL schema. We can define a directive starting with @ character followed by the name, argument (optional), and execution location

Pankaj
September 29, 2022

GraphQL

Spring for GraphQL: Mutation

In GraphQL, a mutation is used to insert, update or delete data. The mutation API is defined with the type Mutation rather than the Query. In Spring for Graphql, a mutation can be implemented using @SchemaMapping or @MutationMapping.

Pankaj
August 14, 2022

GraphQL

Spring for GraphQL: How to solve the N+1 Problem?

GraphQL is susceptible to one issue, commonly known as N + 1 problem. If the GraphQL service is not implemented correctly, it can cause significant latency in the API calls.

Pankaj
August 7, 2022

GraphQL

Spring for GraphQL : @SchemaMapping and @QueryMapping

Spring GraphQL with @Controller, @SchemaMapping and @QueryMapping

In the last article Getting started with Spring Boot GraphQL service, we discussed features of GraphQL and its implementation in Spring for GraphQL using low-level APIs of GraphQL Java. While low-level GraphQL Java implementation is fine for understanding the concept,…