[DMP 2024]: Specification Based Microservice Generation

[techsavvyash]

Spec Based Microservice Generation

Description

Stencil is build keeping developer workflows and developer experience in mind, with the goal of reducing redundant efforts in setting up tooling and commonly used functionality which are used across services.
The ultimate (atleast for now) step towards it could be to just pass in a specification/config file to a parser and get the code for the entire service setup back to you. With stencil is this possible, the main aim is to consolidate all the features stencil presently has into a single compiler step which parses through a configuration file conforming to a particular specification and generates the code for your service which you can hack around to make perfect. The next part of this would be to train a LLM to generate that service for us given some prompt.

Goals

1. Specification for the stencil parser configuration.
2. Parser for the configuration file.
3. Compiler to compile the instructions from the config and generate code
4. Fine tuned LLM model which can generate the configuration file given specific prompts.
5. A system connecting all of these end to end.

Product Name

Stencil

Organisation Name

SamagraX

Tech Skills Needed

Must Haves - TypeScript, NestJS, Backend Development
Good to have - Prisma, Testing, Prompt Engineering, Basic understanding of how to use LLMs

Mentors

@techsavvyash

Complexity

Hard

Implementation Details

Stencil is a framework (collection of components) build on top of the NestJS framework.

Domain

Open Source Library

Category

Backend

Sub Category

Frameworks, Tools

[J0SAL]

Hey @techsavvyash, I am interested in working on the project. Can you provide a sample input (config file) and the expected output (code file), which is expected by the parser?

[AbhimanyuSamagra]

Do not ask process related questions about how to apply and who to contact in the above ticket. The only questions allowed are about technical aspects of the project itself. If you want help with the process, you can refer instructions listed on Unstop and any further queries can be taken up on our Discord channel titled DMP queries. Here's a Video Tutorial on how to submit a proposal for a project.

[Jugrajsinghbali]

Dear @techsavvyash,

I'm Jugraj Singh, a developer enthusiastic about improving developer workflows. Stencil's goal of simplifying service setup by parsing a config file to generate code has caught my attention.

I'm eager to contribute to Stencil by consolidating its features into a single compiler step. I'm excited to explore how I can contribute effectively to Stencil's innovative approach.

Looking forward to potentially collaborating with you all.

[AYSTRONGIRP]

Respected sir ,
I am Umang Jaiswal , a pre-final student at IIIT kota .
My tech- stack is MERN , with Nestjs and Prisma .
I have contributed in my internship for the backend on Nestjs using Postgres with Prisma .

I am interested in contributing to this project .

Name - Umang Jaiswal
email - umang.jaiswal2003@gmail.com
linkedin - https://www.linkedin.com/in/umang-jaiswal-b96b542a2/

[AYSTRONGIRP]

please provide any slack or discord for this specific project .

[techsavvyash]

Weekly Goals

Week 1:

• Plan out what needs to be done
• Get accustomed to Stencil and it's core repos

Week 2:

• Define the stencil spec
• Perfect the basic compiler for the spec

Week 3:

• Implement docker command

Week 4:

• Implement --path flag under docker command
• Update Response Format Interceptor

Week 5:

• Implement crud command
• Update ResponseTime Interceptor

Week 6:

• Implement swagger command

Week 7:

• Finish existing pdf generation service

[Savio629]

Weekly Learnings & Updates

Week 1

• Learned the important concepts of Nest.
• Got to know how stencil cli and schematics communicate with each other
• Fixed and resolved some issues and bugs

Week 2

• Created a draft pr for stencil spec [93] feat: first iteration of spec stencil-cli#31
• Understood how to create commands under stencil cli and invoke it's corresponding action to act as required or generate files from stencil/schematics

Week 3

• Implemented Docker command to support Tooling specific setup and À la Carte setup
• Updated CLI Docs feat: updated cli docs with cli commands stencil-docs#21
• Completm
• Learning about generation of grafana dashboard via api

Week 4

• Implemented path in docker command [93] New Docker command to generate DockerFiles of specified services stencil-cli#34
• Working on integrating spec and docker command
• Worked on response format interceptor [93] Updated response formatting interceptor  #142
• Updated and added test for minio file upload [93] Fix Minio and multiple file upload #159

Week 5

• Updated the stencil spec command with test suites and documentation
• Learning about nestjs/swagger
• Implemented basic flow of generation of crud api
• stencil crud * | stencil crud model1 model2
• [93] feat: New command to generate crud api stencil-cli#38

Week 6

• Fixed the response time interceptor [93] fix: Connected Grafana Api to the response-time-interceptor  #150
• Implemented swagger decorators
  • stencil add swagger --init <controllerPath>
    where init flag is to initialize swagger config files inside main.ts

Week 7

• Updated all the commands with documentation and test suites.
• Researched regarding the next milestone.
• Working on pdf service

Week 8

• Fixed existing issues
• Updated open pr on based on reviews and feedback
• Updated Geoip interceptor with support of list of countries along with list of cities, coordinates and geofences fix: GeoIP Interceptor + Test Cases  #137

Week 9

Took a break this week for a college trip.

Week 10

Took a break for mid-sem exams

Week 11

• Updated GeoIP Interceptor and removed unwanted files: [93] - Integration of GeoIP Interceptor #183
• Updated PDF service with output path and image loading

Week 12

• Integrated coveralls: [93] - Integrated Coveralls #184
• Generation of swaggers for controller and dto: [93] feat: New command to generate crud api stencil-cli#38
• LLM prompt generation: https://github.com/Savio629/spec-actor.git