gRPC is an open-source framework for fast communication between services. Strongly typed contracts are defined in Protocol Buffers and data travels in compact binary form over HTTP/2.
Microservices is an architectural style in which an application is built as a set of small, independently deployable services. Each owns a specific business capability and its own data, and talks to the others over the network.
A REST API is a web interface that exposes resources at URLs and uses standard HTTP methods to read and change them. GET, POST, PUT and DELETE map to reading, creating, replacing and removing data.
A service mesh is an infrastructure layer that manages communication between services. It handles encryption, retries, traffic routing and telemetry consistently, without changes to application code.
A Golang developer builds software in Go, a compiled language designed for simple, fast and concurrent programs. Most work is on backend services, cloud infrastructure and networking tools, and teams often hire one when services must be lean and easy to operate.
REST lets the server shape each response across many fixed endpoints; with GraphQL, the client requests exactly the fields it wants from one endpoint. REST caches more easily, and GraphQL reduces over-fetching for complex front ends.
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