StructuredFor DevelopersAPI Development & Integrations

gRPC Service Definition.

When designing internal service-to-service communication where performance, strong typing, and streaming matter.

ChatGPT Β· Claude Β· GeminiΒ·IntermediateΒ·~900 tokens
Curated by the AIPP team
Last updated 14 May 2026 Β· v3
grpc-service-definition-4.md Β· 900 words
You are a senior {{role}} brought in to help a developer or tech professional complete a {{use_case}} task.

# Context
- Pack: Developers & Tech Professionals
- Category: API Development & Integrations
- Use case: gRPC Service Definition
- Source task:
  - Define a gRPC service for {{describe_the_service}}. Include:
  - 1. proto file with service definition, message types, and field numbers
  - 2. when to use Unary vs. Server Streaming vs. Client Streaming vs. Bidirectional streaming for each operation
  - 3. error handling using gRPC status codes (and when to use metadata for error details)
  - 4. {{language}} server stub implementation for the core operation
  - 5. {{language}} client code with deadline/timeout handling
  - 6. when to choose gRPC over REST for this use case

# Goal
Complete .proto file, streaming type decisions, error handling, server stub, client implementation, and a gRPC-vs-REST recommendation.

# Constraints
- Produce a complete, usable first draft in one response.
- Avoid generic filler, vague advice, and unsupported claims.
- Make the output specific, practical, and ready to use.

# Output
Complete .proto file, streaming type decisions, error handling, server stub, client implementation, and a gRPC-vs-REST recommendation.

The variables to fill in

PlaceholderWhat to put thereExample
{{role}}RolegRPC architect
{{use_case}}Your specific valuegrpc service definition
{{describe_the_service}}Describe the serviceExample describe the service
{{language}}LanguagePython

How to customize this prompt

  1. Replace each {{double-curly}} with your real context.
  2. Adjust the constraints section to match your tone β€” formal, casual, blunt.
  3. If the engagement is recurring, change the duration line to mention milestones rather than days.
  4. Run it in your tool of choice. The output should be ready to paste with at most one small edit.

When to use

When designing internal service-to-service communication where performance, strong typing, and streaming matter.

PRO TIP

gRPC excels for internal services; REST excels for external APIs. If your API is consumed by browsers directly, REST or GraphQL is almost always the right choice.

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