feat: add Mintlify API docs, OpenAPI spec, Postman collection, and local Docker Compose

[tinu-hareesswar]

Summary

• Mintlify API reference UI served at http://localhost:8080/api-reference — 15 endpoint pages with an interactive playground, Juspay logo, and navigation grouped by resource
• OpenAPI 3.1 spec (docs/openapi.json) with camelCase field names aligned to api-reference1.md; removes legacy /decision_gateway v1, /routing/hybrid, and Dynamo/gRPC docs
• Local Docker Compose (docker-compose.local.yaml) with nginx reverse proxy on port 8080 routing API traffic to the decision engine and /api-reference to Mintlify — avoids container_name conflicts with the upstream compose file
• Postman collection (decision-engine.postman_collection.json) with all 15 requests and baseUrl/merchantId variables for quick local testing
• Config fix: adds missing [routing_config.default] section to both config/docker-configuration.toml and helm-charts/config/development.toml (required by v1.2.1, causes startup failure without it)
• Helm dependency upgrades: postgresql 12.5.9 → 18.5.14, redis 17.11.8 → 25.3.9, mysql 13.0.0 → 13.0.4; adds helm-charts/values-local.yaml for local dev overrides

Running locally

docker compose -f docker-compose.local.yaml up -d
curl http://localhost:8080/health
# {"message":"Health is good"}
# API reference: http://localhost:8080/api-reference

Test plan

• docker compose -f docker-compose.local.yaml up -d starts all services cleanly
• curl http://localhost:8080/health returns {"message":"Health is good"}
• http://localhost:8080/api-reference renders Mintlify with Juspay logo and all 15 endpoints
• Clicking each endpoint page loads without 404
• Postman collection imports and hits all endpoints against http://localhost:8080

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR adds a local, self-serve API documentation and testing setup (Mintlify UI + OpenAPI + Postman) and updates local/dev deployment config (Docker Compose + Helm + TOML) to align with Decision Engine v1.2.1.

Changes:

• Add Mintlify docs site configuration/assets and a new OpenAPI 3.1 spec under docs/.
• Add a local docker-compose.local.yaml with an nginx reverse proxy routing /api-reference to Mintlify and other paths to the Decision Engine.
• Update Helm/TOML configs (and chart deps) to include required routing defaults and newer Bitnami dependency versions.

Reviewed changes

Copilot reviewed 29 out of 38 changed files in this pull request and generated 14 comments.

Show a summary per file

File	Description
nginx/nginx.conf	New nginx reverse-proxy config routing docs vs API traffic for local compose.
docker-compose.local.yaml	New local compose stack wiring DB/Redis/app/docs/nginx for one-port local dev.
Dockerfile.docs	Builds a Mintlify docs container for local development.
docs/mint.json	Mintlify site config (navigation, logo, OpenAPI reference).
docs/openapi.json	New OpenAPI 3.1 spec intended to drive Mintlify endpoint pages/playground.
docs/introduction.mdx	New Mintlify “Introduction” page with quickstart examples.
docs/logo/light.svg	Light-theme logo asset for the docs site.
docs/logo/dark.svg	Dark-theme logo asset for the docs site.
docs/api-reference/endpoint/healthCheck.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/decideGateway.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/updateGatewayScore.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/createMerchant.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/getMerchant.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/deleteMerchant.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/createRoutingRule.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/activateRoutingRule.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/listRoutingRules.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/getActiveRoutingRule.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/evaluateRoutingRule.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/createRuleConfig.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/getRuleConfig.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/updateRuleConfig.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
docs/api-reference/endpoint/deleteRuleConfig.mdx	Mintlify endpoint page stub pointing at OpenAPI operation.
decision-engine.postman_collection.json	New Postman collection for local/manual API testing.
config/docker-configuration.toml	Adds missing [routing_config.default] section required by newer engine versions.
helm-charts/config/development.toml	Adds missing [routing_config.default] (and other config adjustments) for dev.
helm-charts/values-local.yaml	New Helm values overrides for local dev (no PVCs, updated tags, etc.).
helm-charts/Chart.yaml	Updates chart dependency versions (Postgres/Redis) but MySQL version needs alignment.
helm-charts/Chart.lock	Updates locked dependency versions/digest.
docs/api-reference/success-rate.md	Removes legacy gRPC Success Rate contract docs.
docs/api-reference/elimination.md	Removes legacy gRPC Elimination contract docs.
docs/api-reference/contract.md	Removes legacy gRPC Contract routing docs.

---

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[Copilot]

/decide-gateway response example (and DecidedGateway schema) uses camelCase keys (e.g., decidedGateway, routingApproach), but the server actually serializes DecidedGateway with snake_case fields (e.g., decided_gateway, routing_approach). Please align the OpenAPI response schema/examples to the real JSON (or update the API serialization for consistency).

Suggested change

	"decidedGateway": "stripe",
	"routingApproach": "SR_SELECTION_V3_ROUTING",
	"gatewayPriorityMap": { "stripe": 0.94, "adyen": 0.87, "paypal": 0.72 },
	"routingDimension": "CARD_BRAND",
	"routingDimensionLevel": "visa",
	"resetApproach": "NoReset",
	"isScheduledOutage": false,
	"isRustBasedDecider": true,
	"decided_gateway": "stripe",
	"routing_approach": "SR_SELECTION_V3_ROUTING",
	"gateway_priority_map": { "stripe": 0.94, "adyen": 0.87, "paypal": 0.72 },
	"routing_dimension": "CARD_BRAND",
	"routing_dimension_level": "visa",
	"reset_approach": "NoReset",
	"is_scheduled_outage": false,
	"is_rust_based_decider": true,

[Copilot]

/update-gateway-score documents a response schema/example with { updatedMerchantId, updatedGateway }, but the API handler returns UpdateScoreResponse { message, merchant_id, gateway, payment_id } (snake_case). Update the OpenAPI UpdateScoreResponse schema and the example to match the actual response shape.

Suggested change

	"example": { "updatedMerchantId": "test_merchant", "updatedGateway": "stripe" }
	"example": { "message": "Score updated", "merchant_id": "test_merchant", "gateway": "stripe", "payment_id": "pay_001" }

[Copilot]

/merchant-account/create is documented with a camelCase request body (merchantId) and MerchantAccount response (createdAt), but the actual API uses snake_case (merchant_id, gateway_success_rate_based_decider_input) and returns a { message, merchant_id, gateway_success_rate_based_decider_input } payload. Please update request/response schemas and examples to match the implemented endpoint.

[Copilot]

/routing/list/active/{merchantId} is documented as a GET, but the server routes this as POST (/routing/list/active/:created_by). With the current spec, Mintlify will generate an incorrect request and the endpoint page may not resolve. Please change the method to POST (and consider renaming the path param to createdBy/created_by for consistency).

Suggested change

	"/routing/list/active/{merchantId}": {
	"get": {
	"operationId": "getActiveRoutingRule",
	"tags": ["Routing Rules"],
	"summary": "Get active routing rule",
	"description": "Retrieve the currently active routing rule for a merchant.",
	"parameters": [
	{
	"name": "merchantId",
	"/routing/list/active/{created_by}": {
	"post": {
	"operationId": "getActiveRoutingRule",
	"tags": ["Routing Rules"],
	"summary": "Get active routing rule",
	"description": "Retrieve the currently active routing rule for a merchant.",
	"parameters": [
	{
	"name": "created_by",

[Copilot]

The /routing/create request schema/examples use merchantId + simplified algorithm shapes, but the actual Euclid handler expects a RoutingRule with fields like created_by, algorithm_for, and connector objects inside algorithm.data. Please update this OpenAPI endpoint schema/examples to reflect the real payload, otherwise the generated docs/playground calls will fail.

[Copilot]

The /update-gateway-score request body uses snake_case keys (merchant_id, payment_id, gateway_reference_id, ...), but the API expects camelCase (merchantId, paymentId, gatewayReferenceId, ... via #[serde(rename_all = "camelCase")]). Please update this Postman request so it matches the actual endpoint contract.

Suggested change

	"raw": "{\n \"merchant_id\": \"{{merchantId}}\",\n \"gateway\": \"stripe\",\n \"payment_id\": \"pay_001\",\n \"status\": \"CHARGED\",\n \"gateway_reference_id\": \"stripe_ref_001\",\n \"enforce_dynamic_routing_failure\": false,\n \"txn_latency\": {\n \"gatewayLatency\": 120.5\n }\n}",
	"raw": "{\n \"merchantId\": \"{{merchantId}}\",\n \"gateway\": \"stripe\",\n \"paymentId\": \"pay_001\",\n \"status\": \"CHARGED\",\n \"gatewayReferenceId\": \"stripe_ref_001\",\n \"enforceDynamicRoutingFailure\": false,\n \"txnLatency\": {\n \"gatewayLatency\": 120.5\n }\n}",

[Copilot]

The Rule Configuration requests (/rule/create|get|update|delete) use fields like config / config_value and algorithm, but the server handlers expect types::routing_configuration::RoutingRule / FetchRoutingRule shapes (e.g., { merchant_id, config: { type, data } } and { merchant_id, algorithm }). As written, these Postman requests won’t match the API and will likely fail deserialization.

[Copilot]

The db-migrator loop masks migration failures: psql ... | grep ... || true will exit 0 even if psql fails (and the final echo also returns 0), so depends_on: condition: service_completed_successfully can be satisfied with an incomplete schema. Please fail the container on migration errors (e.g., enable set -euo pipefail and avoid || true / preserve psql exit status).

Suggested change

	bash -c "
	for f in $$(find /migrations -name 'up.sql' | sort); do
	echo \"Running $$f\";
	psql -h postgresql -U db_user -d decision_engine_db -f $$f 2>&1 | grep -v '^$$' || true;
	bash -e -u -o pipefail -c "
	for f in $$(find /migrations -name 'up.sql' | sort); do
	echo \"Running $$f\";
	psql -h postgresql -U db_user -d decision_engine_db -f $$f 2>&1 | sed '/^$$/d';

[Copilot]

postgres:latest (and postgres:latest for the migrator) makes local dev non-reproducible and can break unexpectedly when the upstream image updates. Please pin to a major/minor (or exact) Postgres version that matches what the app is tested against (and similarly consider pinning the groovy-runner tag instead of :main).

[Copilot]

Chart.yaml still pins the MySQL dependency to ~13.0.0, but Chart.lock (and the vendored chart tarball) are at 13.0.4. This mismatch can cause helm dependency build to fetch a different version than what’s committed. Update Chart.yaml to ~13.0.4 (or regenerate lock/charts to match).

[Copilot]

Pull request overview

Copilot reviewed 59 out of 72 changed files in this pull request and generated 16 comments.

---

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[Copilot]

The /decide-gateway v2 API expects camelCase JSON keys (e.g., merchantId, paymentInfo, eligibleGatewayList) per the backend serde(rename_all = "camelCase"). This page currently posts snake_case keys (merchant_id, payment_info, eligible_gateway_list, etc.), which will fail request parsing (400) on the server.

[Copilot]

apiFetch() builds a merged headers object, but then spreads ...options after it. If options.headers is provided, it will override the merged headers entirely and drop the default Content-Type/merged headers. Consider spreading ...options before headers, or explicitly merging headers without allowing an override.

[Copilot]

The comment says “All types use snake_case”, but this file defines a mix of snake_case (e.g., decided_gateway) and camelCase (e.g., defaultBucketSize, paymentInfo). This is misleading and will likely cause future request/response casing bugs; update the comment to reflect the actual API casing conventions used by each endpoint.

[Copilot]

Euclid advanced routing payload shape here (defaultSelection/connectorSelection plus {type,data}) does not match the backend’s Euclid Program/Output serde format (snake_case fields like default_selection, and Output encoded as externally-tagged enum variants like {"priority": [...]}, not {"type":"priority","data":...}). As-is, creating an "advanced" routing rule will likely fail validation/deserialization server-side.

[Copilot]

This builder converts numeric condition values with Number(c.value). If the input is left empty, Number('') becomes 0, which silently changes the meaning of the rule and may produce unexpected routing. Add validation to require a value for integer keys before submission (or treat empty as an error/null).

[Copilot]

RoutingHubPage uses React.ElementType in the RoutingCard type without importing React/type helpers. This can fail tsc with Cannot find name 'React' under jsx: react-jsx. Import the needed type(s) from 'react'.

[Copilot]

This file uses React.FormEvent in the handleSubmit signature but does not import React (or FormEvent). In TS modules this can fail type-checking (Cannot find name 'React'). Import the needed type from 'react' (e.g., import type { FormEvent } from 'react') and use it directly.

[Copilot]

PR description says this compose avoids container_name conflicts with the upstream docker-compose.yaml, but several services reuse the same container_name values (e.g., open-router-postgres, open-router-redis) that already exist in docker-compose.yaml. This will still conflict if both compose files are used on the same Docker host. Consider removing container_name entirely or renaming them to be unique (e.g., suffix -local).

[Copilot]

docs/mint.json sets "favicon": "/favicon.svg", but there is no favicon.svg in docs/ (or elsewhere in the repo), so the Mintlify site will likely 404 for the favicon. Either add the asset at the expected path or update/remove the favicon reference.

Suggested change

"favicon": "/favicon.svg",

[Copilot]

container_name: open-router-redis matches the upstream docker-compose.yaml container name, so running both compose stacks will still conflict. Either remove container_name or rename it to a compose-file-specific value.