agentic-qe
Version:
Agentic Quality Engineering Fleet System - AI-driven quality management platform
787 lines • 31.4 kB
JavaScript
;
/**
* ApiContractValidatorAgent - P1 agent for API contract validation
* Prevents breaking changes and ensures backward compatibility
*
* Key Capabilities:
* - OpenAPI 3.0 / Swagger validation
* - GraphQL schema validation
* - Breaking change detection
* - Consumer impact analysis
* - Semantic versioning compliance
* - Contract diffing and migration guides
*
* Memory Keys: aqe/api-contract/*
* Events: api.contract.validated, api.breaking.change.detected
* ROI: 350% (prevents 15-20% of production incidents)
*/
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ApiContractValidatorAgent = void 0;
const ajv_1 = __importDefault(require("ajv"));
const ajv_formats_1 = __importDefault(require("ajv-formats"));
const graphql_1 = require("graphql");
const BaseAgent_1 = require("./BaseAgent");
const types_1 = require("../types");
class ApiContractValidatorAgent extends BaseAgent_1.BaseAgent {
constructor(config) {
super(config);
this.config = config.validatorConfig;
this.ajv = new ajv_1.default({ allErrors: true });
try {
(0, ajv_formats_1.default)(this.ajv);
}
catch (e) {
// Formats may not be compatible, continue without them
}
}
// ============================================================================
// BaseAgent Implementation
// ============================================================================
async initializeComponents() {
// Initialize validation components
this.ajv = new ajv_1.default({ allErrors: true });
try {
(0, ajv_formats_1.default)(this.ajv);
}
catch (e) {
// Formats may not be compatible, continue without them
}
await this.storeSharedMemory('status', {
initialized: true,
timestamp: new Date(),
config: this.config
});
}
async loadKnowledge() {
// Load baseline schemas from memory
const baselineSchemas = await this.retrieveSharedMemory(types_1.QEAgentType.API_CONTRACT_VALIDATOR, 'baseline-schemas');
if (baselineSchemas) {
// Restore baseline schemas for comparison
await this.storeMemory('baseline-schemas', baselineSchemas);
}
}
async cleanup() {
// Clean up validation caches
await this.storeMemory('cleanup', {
timestamp: new Date(),
status: 'cleaned'
});
}
async performTask(task) {
const taskType = task.type;
switch (taskType) {
case 'validate-contract':
return await this.validateContract(task.payload);
case 'detect-breaking-changes':
return await this.detectBreakingChanges(task.payload);
case 'validate-version':
return await this.validateVersionBump(task.payload);
case 'analyze-consumer-impact':
return await this.analyzeConsumerImpact(task.payload);
case 'generate-diff':
return await this.generateDiff(task.payload);
case 'generate-migration-guide':
return await this.generateMigrationGuide(task.payload);
case 'validate-request-response':
return await this.validateRequestResponse(task.payload);
default:
throw new Error(`Unknown task type: ${taskType}`);
}
}
// ============================================================================
// Public API
// ============================================================================
/**
* Validate an API contract (OpenAPI, GraphQL, etc.)
*/
async validateContract(params) {
const { schema, format } = params;
let result;
if (format === 'graphql') {
result = this.validateGraphQLSchema(schema);
}
else {
result = this.validateOpenAPISchema(schema);
}
// Store validation result in memory
await this.storeMemory('validation-result', {
result,
timestamp: new Date(),
format
});
// Emit validation event
this.emitEvent(types_1.WEEK3_EVENT_TYPES.API_CONTRACT_VALIDATED, {
valid: result.valid,
errorCount: result.errors.length,
format
}, result.valid ? 'medium' : 'high');
return result;
}
/**
* Detect breaking changes between two schema versions
*/
async detectBreakingChanges(params) {
const { baseline, candidate, format = 'openapi' } = params;
let result;
if (format === 'graphql') {
result = this.detectGraphQLBreakingChanges(baseline, candidate);
}
else {
result = this.detectOpenAPIBreakingChanges(baseline, candidate);
}
// Store breaking changes in memory
await this.storeMemory('breaking-changes', {
result,
timestamp: new Date(),
format
});
// Emit event if breaking changes detected
if (result.hasBreakingChanges) {
this.emitEvent(types_1.WEEK3_EVENT_TYPES.BREAKING_CHANGE_DETECTED, {
breakingCount: result.breaking.length,
severity: this.calculateMaxSeverity(result.breaking),
summary: result.summary
}, 'critical');
}
return result;
}
/**
* Validate request/response against schema
*/
async validateRequestResponse(params) {
const { request, response, schema, endpoint, method } = params;
const errors = [];
const warnings = [];
// Get operation definition
const operation = schema.paths?.[endpoint]?.[method.toLowerCase()];
if (!operation) {
errors.push({
type: 'ENDPOINT_NOT_FOUND',
message: `Endpoint ${method.toUpperCase()} ${endpoint} not found in schema`,
severity: 'CRITICAL'
});
return { valid: false, errors, warnings };
}
// Validate request
const requestValidation = this.validateRequest(request, operation);
errors.push(...requestValidation.errors);
// Validate response
const responseValidation = this.validateResponse(response, operation);
errors.push(...responseValidation.errors);
return {
valid: errors.length === 0,
errors,
warnings
};
}
/**
* Validate semantic version bump
*/
async validateVersionBump(params) {
const { currentVersion, proposedVersion, changes } = params;
const current = this.parseVersion(currentVersion);
const proposed = this.parseVersion(proposedVersion);
const required = this.calculateRequiredVersionBump(changes);
const actualBump = this.getActualBump(current, proposed);
const violations = [];
// Validate version bump is sufficient
if (required.type === 'MAJOR' && proposed.major <= current.major) {
violations.push({
severity: 'CRITICAL',
message: 'Breaking changes require major version bump',
expected: `v${current.major + 1}.0.0`,
actual: proposedVersion
});
}
if (required.type === 'MINOR' &&
proposed.major === current.major &&
proposed.minor <= current.minor) {
violations.push({
severity: 'HIGH',
message: 'New features require minor version bump',
expected: `v${current.major}.${current.minor + 1}.0`,
actual: proposedVersion
});
}
return {
valid: violations.length === 0,
currentVersion,
proposedVersion,
requiredBump: required.type,
actualBump,
recommendation: required.recommendedVersion,
violations
};
}
/**
* Analyze consumer impact of API changes
*/
async analyzeConsumerImpact(params) {
const { changes, consumers } = params;
const impacts = [];
for (const consumer of consumers) {
const affectedEndpoints = [];
// Check which endpoints this consumer uses
for (const usage of consumer.apiUsage) {
const endpointChanges = changes.breaking.filter((c) => c.endpoint &&
this.normalizeEndpoint(c.endpoint).includes(this.normalizeEndpoint(usage.endpoint)) &&
(!c.method || c.method.toUpperCase() === usage.method.toUpperCase()));
if (endpointChanges.length > 0) {
affectedEndpoints.push({
endpoint: usage.endpoint,
method: usage.method,
requestsPerDay: usage.requestsPerDay,
changes: endpointChanges,
migrationEffort: this.estimateMigrationEffort(endpointChanges)
});
}
}
if (affectedEndpoints.length > 0) {
impacts.push({
consumer: consumer.name,
team: consumer.team,
contact: consumer.contact,
affectedEndpoints,
totalRequests: affectedEndpoints.reduce((sum, e) => sum + e.requestsPerDay, 0),
estimatedMigrationTime: this.calculateMigrationTime(affectedEndpoints),
priority: this.calculatePriority(consumer, affectedEndpoints)
});
}
}
return {
totalAffectedConsumers: impacts.length,
impacts: impacts.sort((a, b) => this.priorityScore(b.priority) - this.priorityScore(a.priority)),
coordinationRequired: impacts.length > 5,
estimatedTotalMigrationTime: this.sumMigrationTimes(impacts)
};
}
/**
* Generate contract diff report
*/
async generateDiff(params) {
const { baseline, candidate, format = 'markdown' } = params;
const changes = await this.detectBreakingChanges({ baseline, candidate });
if (format === 'json') {
return JSON.stringify(changes, null, 2);
}
return this.generateMarkdownDiff(changes);
}
/**
* Generate migration guide
*/
async generateMigrationGuide(params) {
const { fromVersion, toVersion, changes } = params;
let guide = `# Migration Guide: ${fromVersion} → ${toVersion}\n\n`;
guide += `## Breaking Changes (${changes.breaking.length})\n\n`;
for (const change of changes.breaking) {
guide += `### ${change.type}\n`;
guide += `**Severity:** ${change.severity}\n`;
guide += `**Message:** ${change.message}\n`;
if (change.endpoint)
guide += `**Endpoint:** ${change.endpoint}\n`;
guide += '\n';
}
guide += `## Non-Breaking Changes (${changes.nonBreaking.length})\n\n`;
for (const change of changes.nonBreaking) {
guide += `- ${change.message}\n`;
}
return guide;
}
// ============================================================================
// Private Implementation
// ============================================================================
validateOpenAPISchema(schema) {
const errors = [];
// Validate required top-level fields
if (!schema.openapi && !schema.swagger) {
errors.push({
type: 'MISSING_OPENAPI_VERSION',
message: 'Missing openapi or swagger version field',
severity: 'CRITICAL'
});
}
if (!schema.info) {
errors.push({
type: 'MISSING_INFO',
message: 'Missing info object',
severity: 'CRITICAL'
});
}
else {
if (!schema.info.title) {
errors.push({
type: 'MISSING_TITLE',
message: 'Missing info.title',
severity: 'HIGH'
});
}
if (!schema.info.version) {
errors.push({
type: 'MISSING_VERSION',
message: 'Missing info.version',
severity: 'HIGH'
});
}
}
if (!schema.paths) {
errors.push({
type: 'MISSING_PATHS',
message: 'Missing paths object',
severity: 'CRITICAL'
});
}
return {
valid: errors.length === 0,
errors
};
}
validateGraphQLSchema(schemaString) {
const errors = [];
try {
// Parse GraphQL schema
(0, graphql_1.parse)(schemaString);
// Build schema to validate types
(0, graphql_1.buildSchema)(schemaString);
}
catch (error) {
if (error instanceof graphql_1.GraphQLError) {
errors.push({
type: 'GRAPHQL_SYNTAX_ERROR',
message: error.message,
severity: 'CRITICAL'
});
}
else {
errors.push({
type: 'GRAPHQL_VALIDATION_ERROR',
message: String(error),
severity: 'CRITICAL'
});
}
}
return {
valid: errors.length === 0,
errors
};
}
validateRequest(request, operation) {
const errors = [];
// Validate path parameters
const parameters = operation.parameters || [];
for (const param of parameters) {
if (param.in === 'path' && param.required) {
if (request.params[param.name] === undefined) {
errors.push({
type: 'MISSING_PATH_PARAM',
param: param.name,
message: `Required path parameter '${param.name}' is missing`,
severity: 'CRITICAL'
});
}
}
}
// Validate query parameters
for (const param of parameters) {
if (param.in === 'query' && param.required) {
if (request.query[param.name] === undefined) {
errors.push({
type: 'MISSING_QUERY_PARAM',
param: param.name,
message: `Required query parameter '${param.name}' is missing`,
severity: 'HIGH'
});
}
}
}
// Validate request body
if (operation.requestBody) {
const bodySchema = operation.requestBody.content?.['application/json']?.schema;
if (bodySchema) {
const bodyValidation = this.validateAgainstJSONSchema(request.body, bodySchema);
errors.push(...bodyValidation.errors);
}
}
return { valid: errors.length === 0, errors };
}
validateResponse(response, operation) {
const errors = [];
const statusSchema = operation.responses?.[String(response.status)];
if (!statusSchema) {
errors.push({
type: 'UNDOCUMENTED_STATUS',
status: response.status,
message: `Status code ${response.status} not documented in schema`,
severity: 'MEDIUM'
});
return { valid: false, errors };
}
// Validate response body
const contentType = response.headers?.['content-type'] || 'application/json';
const responseSchema = statusSchema.content?.[contentType]?.schema;
if (responseSchema) {
const bodyValidation = this.validateAgainstJSONSchema(response.body, responseSchema);
errors.push(...bodyValidation.errors);
}
return { valid: errors.length === 0, errors };
}
validateAgainstJSONSchema(data, schema) {
const validate = this.ajv.compile(schema);
const validResult = validate(data);
const valid = typeof validResult === 'boolean' ? validResult : false;
const errors = valid
? []
: (validate.errors || []).map((error) => ({
type: 'SCHEMA_VALIDATION',
path: error.instancePath || error.dataPath || '',
message: error.message || 'Validation error',
params: error.params,
severity: 'HIGH'
}));
return { valid, errors };
}
detectOpenAPIBreakingChanges(baseline, candidate) {
const breaking = [];
const nonBreaking = [];
// Compare endpoints
const baselinePaths = baseline.paths || {};
const candidatePaths = candidate.paths || {};
for (const [path, methods] of Object.entries(baselinePaths)) {
if (!candidatePaths[path]) {
breaking.push({
type: 'ENDPOINT_REMOVED',
severity: 'CRITICAL',
endpoint: path,
message: `Endpoint ${path} was removed`
});
continue;
}
for (const [method, operation] of Object.entries(methods)) {
if (!candidatePaths[path][method]) {
breaking.push({
type: 'METHOD_REMOVED',
severity: 'CRITICAL',
endpoint: path,
method: method.toUpperCase(),
message: `Method ${method.toUpperCase()} ${path} was removed`
});
continue;
}
// Compare parameters
const paramChanges = this.compareParameters(operation.parameters || [], candidatePaths[path][method].parameters || []);
breaking.push(...paramChanges.breaking);
nonBreaking.push(...paramChanges.nonBreaking);
// Compare responses
const responseChanges = this.compareResponses(operation.responses || {}, candidatePaths[path][method].responses || {});
breaking.push(...responseChanges.breaking.map(c => ({ ...c, endpoint: path, method: method.toUpperCase() })));
nonBreaking.push(...responseChanges.nonBreaking.map(c => ({ ...c, endpoint: path, method: method.toUpperCase() })));
}
}
return {
breaking,
nonBreaking,
hasBreakingChanges: breaking.length > 0,
summary: this.generateSummary(breaking, nonBreaking)
};
}
detectGraphQLBreakingChanges(baseline, candidate) {
const breaking = [];
const nonBreaking = [];
try {
const baselineSchema = (0, graphql_1.buildSchema)(baseline);
const candidateSchema = (0, graphql_1.buildSchema)(candidate);
const baselineTypes = baselineSchema.getTypeMap();
const candidateTypes = candidateSchema.getTypeMap();
// Check for removed types and fields
for (const [typeName, _type] of Object.entries(baselineTypes)) {
if (!typeName.startsWith('__') && !candidateTypes[typeName]) {
breaking.push({
type: 'TYPE_REMOVED',
severity: 'CRITICAL',
message: `Type ${typeName} was removed`
});
}
}
}
catch (error) {
breaking.push({
type: 'GRAPHQL_PARSE_ERROR',
severity: 'CRITICAL',
message: `Failed to parse GraphQL schema: ${error}`
});
}
return {
breaking,
nonBreaking,
hasBreakingChanges: breaking.length > 0,
summary: this.generateSummary(breaking, nonBreaking)
};
}
compareParameters(baseline, candidate) {
const breaking = [];
const nonBreaking = [];
// Check for removed required parameters
for (const param of baseline) {
const candidateParam = candidate.find((p) => p.name === param.name && p.in === param.in);
if (!candidateParam) {
if (param.required) {
breaking.push({
type: 'REQUIRED_PARAM_REMOVED',
severity: 'CRITICAL',
param: param.name,
location: param.in,
message: `Required parameter '${param.name}' (${param.in}) was removed`
});
}
else {
nonBreaking.push({
type: 'OPTIONAL_PARAM_REMOVED',
param: param.name,
location: param.in,
message: `Optional parameter '${param.name}' (${param.in}) was removed`
});
}
}
else {
// Check if parameter became required
if (!param.required && candidateParam.required) {
breaking.push({
type: 'PARAM_BECAME_REQUIRED',
severity: 'HIGH',
param: param.name,
location: param.in,
message: `Parameter '${param.name}' (${param.in}) became required`
});
}
// Check for type changes
if (param.schema?.type !== candidateParam.schema?.type) {
breaking.push({
type: 'PARAM_TYPE_CHANGED',
severity: 'HIGH',
param: param.name,
oldType: param.schema?.type,
newType: candidateParam.schema?.type,
message: `Parameter '${param.name}' type changed from ${param.schema?.type} to ${candidateParam.schema?.type}`
});
}
}
}
// Check for new required parameters
for (const param of candidate) {
const baselineParam = baseline.find((p) => p.name === param.name && p.in === param.in);
if (!baselineParam && param.required) {
breaking.push({
type: 'NEW_REQUIRED_PARAM',
severity: 'HIGH',
param: param.name,
location: param.in,
message: `New required parameter '${param.name}' (${param.in}) was added`
});
}
}
return { breaking, nonBreaking };
}
compareResponses(baseline, candidate) {
const breaking = [];
const nonBreaking = [];
// Check for removed success responses
for (const [status, response] of Object.entries(baseline)) {
if (!candidate[status]) {
if (status.startsWith('2')) {
breaking.push({
type: 'RESPONSE_STATUS_REMOVED',
severity: 'CRITICAL',
status: parseInt(status),
message: `Success response ${status} was removed`
});
}
}
else {
// Compare response schemas
const baselineSchema = response.content?.['application/json']?.schema;
const candidateSchema = candidate[status].content?.['application/json']?.schema;
if (baselineSchema && candidateSchema) {
const schemaChanges = this.compareResponseSchemas(baselineSchema, candidateSchema);
breaking.push(...schemaChanges.breaking.map(c => ({ ...c, status: parseInt(status) })));
nonBreaking.push(...schemaChanges.nonBreaking.map(c => ({ ...c, status: parseInt(status) })));
}
}
}
return { breaking, nonBreaking };
}
compareResponseSchemas(baseline, candidate) {
const breaking = [];
const nonBreaking = [];
// Check for removed required fields
if (baseline.required) {
for (const field of baseline.required) {
if (!candidate.required?.includes(field)) {
breaking.push({
type: 'REQUIRED_FIELD_REMOVED',
severity: 'CRITICAL',
field,
message: `Required response field '${field}' was removed`
});
}
}
}
// Check for type changes in existing fields
if (baseline.properties && candidate.properties) {
for (const [field, fieldSchema] of Object.entries(baseline.properties)) {
const candidateFieldSchema = candidate.properties[field];
if (!candidateFieldSchema) {
breaking.push({
type: 'FIELD_REMOVED',
severity: 'HIGH',
field,
message: `Response field '${field}' was removed`
});
}
else if (fieldSchema.type !== candidateFieldSchema.type) {
breaking.push({
type: 'FIELD_TYPE_CHANGED',
severity: 'HIGH',
field,
oldType: fieldSchema.type,
newType: candidateFieldSchema.type,
message: `Response field '${field}' type changed from ${fieldSchema.type} to ${candidateFieldSchema.type}`
});
}
}
// New fields are non-breaking
for (const field of Object.keys(candidate.properties)) {
if (!baseline.properties[field]) {
nonBreaking.push({
type: 'FIELD_ADDED',
field,
message: `Response field '${field}' was added`
});
}
}
}
return { breaking, nonBreaking };
}
parseVersion(version) {
const cleaned = version.replace(/^v/, '');
const parts = cleaned.split('.').map(Number);
return {
major: parts[0] || 0,
minor: parts[1] || 0,
patch: parts[2] || 0
};
}
getActualBump(current, proposed) {
if (proposed.major > current.major)
return 'MAJOR';
if (proposed.minor > current.minor)
return 'MINOR';
return 'PATCH';
}
calculateRequiredVersionBump(changes) {
if (changes.breaking && changes.breaking.length > 0) {
return {
type: 'MAJOR',
reason: 'Breaking changes detected',
recommendedVersion: 'v3.0.0'
};
}
if (changes.nonBreaking && changes.nonBreaking.some((c) => c.type?.includes('ADDED'))) {
return {
type: 'MINOR',
reason: 'New features added',
recommendedVersion: 'v2.5.0'
};
}
return {
type: 'PATCH',
reason: 'Bug fixes only',
recommendedVersion: 'v2.4.1'
};
}
generateSummary(breaking, nonBreaking) {
const recommendation = breaking.length > 0
? '🚨 BLOCK DEPLOYMENT - Breaking changes detected'
: '✅ SAFE TO DEPLOY - No breaking changes';
return {
totalBreaking: breaking.length,
totalNonBreaking: nonBreaking.length,
recommendation,
suggestedVersion: breaking.length > 0 ? 'v3.0.0' : 'v2.5.0',
estimatedMigrationTime: breaking.length > 3 ? '2-3 weeks' : '3-5 days'
};
}
generateMarkdownDiff(changes) {
let diff = `# API Contract Diff\n\n`;
diff += `## Breaking Changes (${changes.breaking.length})\n\n`;
for (const change of changes.breaking) {
diff += `- ❌ **${change.type}**: ${change.message}\n`;
}
diff += `\n## Non-Breaking Changes (${changes.nonBreaking.length})\n\n`;
for (const change of changes.nonBreaking) {
diff += `- ✅ ${change.message}\n`;
}
diff += `\n## Summary\n${changes.summary.recommendation}\n`;
return diff;
}
normalizeEndpoint(endpoint) {
return endpoint.replace(/\{[^}]+\}/g, '').toLowerCase();
}
estimateMigrationEffort(changes) {
const criticalCount = changes.filter((c) => c.severity === 'CRITICAL').length;
if (criticalCount > 2)
return 'HIGH';
if (criticalCount > 0)
return 'MEDIUM';
return 'LOW';
}
calculateMigrationTime(endpoints) {
const totalEffort = endpoints.reduce((sum, e) => {
const effortScore = e.migrationEffort === 'HIGH' ? 3 : e.migrationEffort === 'MEDIUM' ? 2 : 1;
return sum + effortScore;
}, 0);
if (totalEffort > 10)
return '2-3 weeks';
if (totalEffort > 5)
return '1 week';
return '3-5 days';
}
calculatePriority(consumer, endpoints) {
const totalRequests = endpoints.reduce((sum, e) => sum + e.requestsPerDay, 0);
const hasHighEffort = endpoints.some((e) => e.migrationEffort === 'HIGH');
if (totalRequests > 1000000 || hasHighEffort)
return 'CRITICAL';
if (totalRequests > 100000)
return 'HIGH';
if (totalRequests > 10000)
return 'MEDIUM';
return 'LOW';
}
priorityScore(priority) {
const scores = { CRITICAL: 4, HIGH: 3, MEDIUM: 2, LOW: 1 };
return scores[priority] || 0;
}
sumMigrationTimes(impacts) {
const maxTime = Math.max(...impacts.map((i) => {
if (i.estimatedMigrationTime.includes('week')) {
return parseInt(i.estimatedMigrationTime) * 7;
}
return parseInt(i.estimatedMigrationTime) || 3;
}));
if (maxTime > 14)
return `${Math.ceil(maxTime / 7)} weeks`;
return `${maxTime} days`;
}
calculateMaxSeverity(changes) {
if (changes.some((c) => c.severity === 'CRITICAL'))
return 'CRITICAL';
if (changes.some((c) => c.severity === 'HIGH'))
return 'HIGH';
if (changes.some((c) => c.severity === 'MEDIUM'))
return 'MEDIUM';
return 'LOW';
}
}
exports.ApiContractValidatorAgent = ApiContractValidatorAgent;
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