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1272 lines (1235 loc) · 34.8 KB
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openapi: "3.0.3"
info:
title: StableRoute Backend
version: "1.0.0"
description: |
StableRoute API gateway — routing engine and pricing service for Stellar-based
stablecoin payments. Provides pair registration, quote generation, webhook
management, API-key lifecycle, and operational endpoints (health, metrics,
audit log).
servers:
- url: http://localhost:3001
description: Local development
components:
securitySchemes:
ApiKeyBearer:
type: http
scheme: bearer
bearerFormat: srk_<uuid-hex>
description: |
Bearer token issued by POST /api/v1/api-keys. Pass as
`Authorization: Bearer srk_...`. Required for write operations.
AdminBearer:
type: http
scheme: bearer
bearerFormat: srk_<uuid-hex>
description: |
Bearer token that carries the `keys:admin` scope. Required for
admin-level operations such as key rotation and scope management.
schemas:
ErrorEnvelope:
type: object
required: [error, message, requestId]
properties:
error:
type: string
enum:
- not_found
- invalid_request
- invalid_json
- unauthorized
- forbidden
- rate_limited
- service_paused
- internal_error
- not_acceptable
- payload_too_large
- conflict
- method_not_allowed
- read_only_mode
message:
type: string
requestId:
type: string
AssetCode:
type: string
pattern: "^[A-Z0-9]{1,12}$"
example: USDC
PairMeta:
type: object
properties:
liquidity:
type: string
description: Non-negative integer string representing available liquidity.
example: "1000000"
minAmount:
type: string
description: Minimum swap amount (integer string, 0 = unset).
example: "100"
maxAmount:
type: string
description: Maximum swap amount (positive integer string).
example: "1000000"
feeBps:
type: integer
minimum: 0
maximum: 1000
description: Fee in basis points (0–1000).
example: 30
ApiKeyRecord:
type: object
required: [prefix, label, createdAt]
properties:
prefix:
type: string
description: First 8 characters of the raw key (safe to expose).
label:
type: string
createdAt:
type: integer
description: Unix epoch ms.
rotatedAt:
type: integer
description: Unix epoch ms when the key was rotated (only on predecessor records).
WebhookRecord:
type: object
required: [id, url, events, createdAt]
properties:
id:
type: string
example: wh_a1b2c3d4e5f6g7h8
url:
type: string
format: uri
events:
type: array
items:
type: string
example: ["pair.registered", "pair.unregistered"]
createdAt:
type: integer
description: Unix epoch ms.
paths:
/health:
get:
summary: Shallow health
description: Liveness probe. Returns 200 while the process is alive.
operationId: getHealth
responses:
"200":
description: Service is alive.
content:
application/json:
schema:
type: object
required: [status, service]
properties:
status:
type: string
example: ok
service:
type: string
example: stableroute-backend
/api/v1/health/deep:
get:
summary: Deep health
description: Readiness probe that runs storage and clock checks.
operationId: getHealthDeep
responses:
"200":
description: All checks passed.
content:
application/json:
schema:
type: object
required: [status, checks]
properties:
status:
type: string
enum: [ok, degraded, paused]
uptimeSeconds:
type: integer
memory:
type: object
properties:
rssMb:
type: integer
heapUsedMb:
type: integer
pid:
type: integer
node:
type: string
checks:
type: array
items:
type: object
required: [name, status, durationMs]
properties:
name:
type: string
status:
type: string
enum: [ok, fail]
durationMs:
type: integer
"503":
description: One or more checks degraded.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/version:
get:
summary: Build / version metadata
operationId: getVersion
responses:
"200":
description: Build identity (no secrets or internal paths).
content:
application/json:
schema:
type: object
required: [name, version, commit, buildTime, node]
properties:
name:
type: string
version:
type: string
commit:
type: string
buildTime:
type: string
node:
type: string
/api/v1/openapi.json:
get:
summary: This OpenAPI spec (JSON)
operationId: getOpenApiSpec
responses:
"200":
description: OpenAPI 3.0 document as JSON.
/api/v1/metrics:
get:
summary: Prometheus metrics
description: Returns Prometheus text-exposition metrics (text/plain).
operationId: getMetrics
responses:
"200":
description: Prometheus scrape payload.
content:
text/plain:
schema:
type: string
/api/v1/stats:
get:
summary: Aggregate snapshot
operationId: getStats
responses:
"200":
description: Aggregate counts across all stores.
content:
application/json:
schema:
type: object
required:
- totalPairs
- paused
- totalApiKeys
- totalWebhooks
- totalEvents
- pairsWithFee
- distinctAssets
properties:
totalPairs:
type: integer
paused:
type: boolean
totalApiKeys:
type: integer
totalWebhooks:
type: integer
totalEvents:
type: integer
pairsWithFee:
type: integer
distinctAssets:
type: integer
/api/v1/events:
get:
summary: Audit log
operationId: getEvents
parameters:
- name: since
in: query
description: Return only events with ts >= since (Unix epoch ms).
schema:
type: integer
minimum: 0
default: 0
- name: limit
in: query
description: Maximum number of events to return (clamped to log cap).
schema:
type: integer
minimum: 1
default: 100
- name: type
in: query
description: Filter by event type.
schema:
type: string
responses:
"200":
description: Filtered event list.
content:
application/json:
schema:
type: object
required: [items]
properties:
items:
type: array
items:
type: object
required: [ts, type]
properties:
ts:
type: integer
type:
type: string
"400":
description: Invalid query parameters.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/config:
get:
summary: Read config
operationId: getConfig
responses:
"200":
description: Current runtime configuration.
content:
application/json:
schema:
type: object
required: [config]
properties:
config:
type: object
patch:
summary: Update config
operationId: patchConfig
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
rateLimitPerWindow:
type: integer
minimum: 1
rateLimitWindowMs:
type: integer
minimum: 1
bulkMaxItems:
type: integer
minimum: 1
eventLogCap:
type: integer
minimum: 1
responses:
"200":
description: Updated configuration.
content:
application/json:
schema:
type: object
required: [config]
properties:
config:
type: object
"400":
description: Invalid field value.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/pairs:
get:
summary: List pairs
operationId: listPairs
responses:
"200":
description: All registered pairs.
headers:
ETag:
schema:
type: string
content:
application/json:
schema:
type: object
required: [pairs]
properties:
pairs:
type: array
items:
type: object
required: [source, destination]
properties:
source:
$ref: "#/components/schemas/AssetCode"
destination:
$ref: "#/components/schemas/AssetCode"
"304":
description: Not modified (ETag matched).
head:
summary: Pairs list ETag (no body)
operationId: headPairs
responses:
"200":
description: Headers only (ETag + Content-Length).
"304":
description: Not modified.
post:
summary: Register pair
operationId: registerPair
security:
- ApiKeyBearer: [pairs:write]
requestBody:
required: true
content:
application/json:
schema:
type: object
required: [source, destination]
properties:
source:
$ref: "#/components/schemas/AssetCode"
destination:
$ref: "#/components/schemas/AssetCode"
responses:
"201":
description: Pair registered (new).
content:
application/json:
schema:
type: object
"200":
description: Pair already existed (idempotent re-register).
content:
application/json:
schema:
type: object
"400":
description: Invalid asset codes or same-asset pair.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/pairs/bulk:
post:
summary: Bulk register pairs
operationId: bulkRegisterPairs
security:
- ApiKeyBearer: [pairs:write]
requestBody:
required: true
content:
application/json:
schema:
type: object
required: [pairs]
properties:
pairs:
type: array
items:
type: object
required: [source, destination]
properties:
source:
$ref: "#/components/schemas/AssetCode"
destination:
$ref: "#/components/schemas/AssetCode"
responses:
"200":
description: Per-item results.
content:
application/json:
schema:
type: object
required: [results]
properties:
results:
type: array
items:
type: object
"400":
description: Batch too large or empty.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/pairs/{source}/{destination}:
parameters:
- name: source
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: destination
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
get:
summary: Read pair
operationId: getPair
responses:
"200":
description: Pair found.
content:
application/json:
schema:
type: object
"404":
description: Pair not found.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
delete:
summary: Unregister pair
operationId: deletePair
security:
- ApiKeyBearer: [pairs:write]
responses:
"204":
description: Pair deleted.
"404":
description: Pair not found.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/pairs/{source}/{destination}/info:
parameters:
- name: source
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: destination
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
get:
summary: Pair aggregate
operationId: getPairInfo
responses:
"200":
description: Pair metadata aggregate.
content:
application/json:
schema:
allOf:
- $ref: "#/components/schemas/PairMeta"
- type: object
required: [source, destination, registered]
properties:
source:
$ref: "#/components/schemas/AssetCode"
destination:
$ref: "#/components/schemas/AssetCode"
registered:
type: boolean
/api/v1/pairs/{source}/{destination}/fee_bps:
parameters:
- name: source
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: destination
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
patch:
summary: Set fee
operationId: patchPairFee
security:
- ApiKeyBearer: [pairs:write]
requestBody:
required: true
content:
application/json:
schema:
type: object
required: [feeBps]
properties:
feeBps:
type: integer
minimum: 0
maximum: 1000
responses:
"200":
description: Updated pair metadata.
content:
application/json:
schema:
type: object
"400":
description: Invalid feeBps value.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/pairs/{source}/{destination}/min:
parameters:
- name: source
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: destination
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
patch:
summary: Set min amount
operationId: patchPairMin
security:
- ApiKeyBearer: [pairs:write]
requestBody:
required: true
content:
application/json:
schema:
type: object
required: [minAmount]
properties:
minAmount:
type: string
pattern: "^[0-9]{1,39}$"
responses:
"200":
description: Updated pair metadata.
content:
application/json:
schema:
type: object
"400":
description: Invalid minAmount.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/pairs/{source}/{destination}/max:
parameters:
- name: source
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: destination
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
patch:
summary: Set max amount
operationId: patchPairMax
security:
- ApiKeyBearer: [pairs:write]
requestBody:
required: true
content:
application/json:
schema:
type: object
required: [maxAmount]
properties:
maxAmount:
type: string
pattern: "^[1-9][0-9]{0,38}$"
responses:
"200":
description: Updated pair metadata.
content:
application/json:
schema:
type: object
"400":
description: Invalid maxAmount.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/pairs/{source}/{destination}/liquidity:
parameters:
- name: source
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: destination
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
patch:
summary: Set liquidity
operationId: patchPairLiquidity
security:
- ApiKeyBearer: [pairs:write]
requestBody:
required: true
content:
application/json:
schema:
type: object
required: [liquidity]
properties:
liquidity:
type: string
pattern: "^[0-9]{1,39}$"
responses:
"200":
description: Updated pair metadata.
content:
application/json:
schema:
type: object
"400":
description: Invalid liquidity value.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/pairs/{source}/{destination}/reset:
parameters:
- name: source
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: destination
in: path
required: true
schema:
$ref: "#/components/schemas/AssetCode"
post:
summary: Reset pair metadata to defaults
operationId: resetPairMeta
security:
- ApiKeyBearer: [pairs:write]
responses:
"200":
description: Pair metadata reset to factory defaults.
content:
application/json:
schema:
type: object
"404":
description: Pair not found.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/quote:
get:
summary: Get a route quote
operationId: getQuote
parameters:
- name: source_asset
in: query
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: dest_asset
in: query
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: amount
in: query
required: true
description: Gross amount in base units (positive integer string).
schema:
type: string
pattern: "^[1-9][0-9]{0,38}$"
responses:
"200":
description: Quote with fee breakdown.
content:
application/json:
schema:
type: object
required:
- source_asset
- dest_asset
- amount
- estimated_rate
- route
- feeBps
- feeAmount
- netAmount
properties:
source_asset:
$ref: "#/components/schemas/AssetCode"
dest_asset:
$ref: "#/components/schemas/AssetCode"
amount:
type: string
estimated_rate:
type: string
route:
type: array
items:
type: string
feeBps:
type: integer
feeAmount:
type: string
netAmount:
type: string
"400":
description: Missing or invalid query params.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/quote/reverse:
get:
summary: "Reverse quote: solve required input for a target output"
operationId: getReverseQuote
parameters:
- name: source_asset
in: query
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: dest_asset
in: query
required: true
schema:
$ref: "#/components/schemas/AssetCode"
- name: target_amount
in: query
required: true
description: Target delivered amount in base units (positive integer string).
schema:
type: string
pattern: "^[1-9][0-9]{0,38}$"
responses:
"200":
description: Required gross input to deliver the requested output.
content:
application/json:
schema:
type: object
required:
- source_asset
- dest_asset
- target_amount
- required_input
- estimated_rate
- route
properties:
source_asset:
$ref: "#/components/schemas/AssetCode"
dest_asset:
$ref: "#/components/schemas/AssetCode"
target_amount:
type: string
required_input:
type: string
estimated_rate:
type: string
route:
type: array
items:
type: string
"400":
description: Missing or invalid query params.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/quote/bulk:
post:
summary: Bulk quote
operationId: bulkQuote
requestBody:
required: true
content:
application/json:
schema:
type: object
required: [items]
properties:
items:
type: array
items:
type: object
required: [source_asset, dest_asset, amount]
properties:
source_asset:
$ref: "#/components/schemas/AssetCode"
dest_asset:
$ref: "#/components/schemas/AssetCode"
amount:
type: string
responses:
"200":
description: Per-item quote results.
content:
application/json:
schema:
type: object
required: [results]
properties:
results:
type: array
items:
type: object
"400":
description: Batch size out of range.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/api-keys:
get:
summary: List API keys
operationId: listApiKeys
security:
- ApiKeyBearer: [keys:admin]
responses:
"200":
description: All stored API key records (prefix + label only).
content:
application/json:
schema:
type: object
required: [items]
properties:
items:
type: array
items:
$ref: "#/components/schemas/ApiKeyRecord"
post:
summary: Create API key
operationId: createApiKey
security:
- ApiKeyBearer: [keys:admin]
requestBody:
required: true
content:
application/json:
schema:
type: object
required: [label]
properties:
label:
type: string
minLength: 1
maxLength: 64
scopes:
type: array
items:
type: string
enum: [pairs:write, webhooks:write, keys:admin]
responses:
"201":
description: Newly created key (raw value shown exactly once).
content:
application/json:
schema:
type: object
required: [key, label]
properties:
key:
type: string
label:
type: string
"400":
description: Invalid label or unknown scopes.
content:
application/json:
schema:
$ref: "#/components/schemas/ErrorEnvelope"
/api/v1/api-keys/{prefix}:
parameters:
- name: prefix