Develop gRPC client connector tool for MI

[lnash94]

Problem

Develop a lightweight gRPC client connector for MI to ensure efficient, low-latency communication with services. By defining contracts with Protocol Buffers and managing connections, load balancing, and serialization, the connector simplifies your codebase, boosts reliability, and supports seamless scaling.

Proposed Solution

1. Provide JSON input and bind it into proto structures.

2. Generate Java client according to the proto data structure and map it with synapse.

Meeting Notes can be found here: https://docs.google.com/document/d/1pqfmk7oa8Grm3eo_r_rV0eCJ_zdfJwzxaarNY6QKLwQ/edit?tab=t.0#heading=h.tzw6a6ceqb75

Alternatives

No response

Version

No response

[lnash94]

Discussed Approach:

Approached 02: Generate a Java client by using protoc file and use it to call gPRC server then integrate it with the MI

[lnash94]

Manual POC testing for code generation

Implementation details:

• 1. Do a manual code generation for the proto file to java client, using protoc CLI
• 2. Manually write the UI schemas, synapse input and other relevant class mediators
• 3. Do feasibility: Integrate all the flow to check the gRPC connector can support via the MI without changing MI Runtime Server
• 4. Implement a Ballerina grpc server for testing the flow