eve/dist/src/runtime/connections/openapi-client.js

Filesystem-first framework for durable backend AI agents that run anywhere.

import{tool}from"ai";import{isLoopbackHostname}from"#shared/network-address.js";import{createLogger}from"#internal/logging.js";import{isObject}from"#shared/guards.js";import{toInputSchema}from"#tools/schema.js";import{omitProvidedArgumentsFromSchema,resolveProvidedArguments}from"#runtime/connections/provided-arguments.js";import{passesToolFilter,resolveHeaders}from"#runtime/connections/mcp-client.js";import{HTTP_METHODS,operationDescription,operationName,uniqueName}from"#runtime/connections/openapi-operations.js";import{buildInputSchema,deref,derefSchema,isArray}from"#runtime/connections/openapi-schema.js";import{applySecurity,resolveSecurity}from"#runtime/connections/openapi-security.js";import{extractServerUrl,parseSpecDocument}from"#runtime/connections/openapi-spec.js";const log=createLogger(`runtime.connections.openapi-client`),SWAGGER_PARAMETER_SCHEMA_KEYS=[`default`,`enum`,`exclusiveMaximum`,`exclusiveMinimum`,`format`,`items`,`maximum`,`maxItems`,`maxLength`,`minimum`,`minItems`,`minLength`,`multipleOf`,`pattern`,`type`,`uniqueItems`];var OpenApiConnectionClient=class{#e;#t;#n;constructor(e){this.#n=e}async connect(){return this.#r()}async getToolMetadata(){return(await this.#r()).metadata}async getTools(){return(await this.#r()).tools}async executeTool(e,t,n){let r=await this.#r(),i=r.operations.get(e);if(i===void 0)throw Error(`Tool "${e}" not found in connection "${this.#n.connectionName}".`);return this.#f(i,r.baseUrl,isObject(t)?t:{},{abortSignal:n.abortSignal,callId:n.callId})}async close(){this.#e=void 0,this.#t=void 0}async#r(){if(this.#t!==void 0)return this.#t;if(this.#e!==void 0)return this.#e;this.#e=this.#i();try{return this.#t=await this.#e,this.#t}catch(e){throw this.#e=void 0,e}}async#i(){let e=await this.#o(),t=this.#a(e),n=this.#s(e),r=this.#n.tools,i=r===void 0?n:n.filter(e=>passesToolFilter(e.toolName,r)),a=[],o=new Map,s={},c=Object.keys(this.#n.toolCall?.providedArguments??{});for(let e of i){let n=omitProvidedArgumentsFromSchema(e.inputSchema,c),r;try{r=toInputSchema(n)}catch(t){log.warn(`omitting OpenAPI operation with an invalid input schema`,{connectionName:this.#n.connectionName,error:t,toolName:e.toolName});continue}o.set(e.toolName,e),a.push({description:e.description,inputSchema:n,name:e.toolName}),s[e.toolName]=tool({description:e.description,inputSchema:r,execute:async(n,r)=>this.#f(e,t,isObject(n)?n:{},{abortSignal:r?.abortSignal,callId:r.toolCallId})})}return{metadata:a,operations:o,tools:s,baseUrl:t}}#a(e){let t=this.#n.url,n=typeof t==`string`&&t.trim().length>0?t:extractServerUrl(e,this.#n.spec);if(n===void 0)throw Error(`OpenAPI connection "${this.#n.connectionName}" has no base URL: set "baseUrl" or ensure the document declares an absolute "servers" entry or Swagger "host".`);return assertSecureUrl(n,this.#n.connectionName,`base`),n}async#o(){let e=this.#n.spec;if(e===void 0)throw Error(`OpenAPI connection "${this.#n.connectionName}" is missing its "spec" source.`);if(typeof e!=`string`)return e;assertSecureUrl(e,this.#n.connectionName,`spec`);let t;try{t=await fetch(e,{headers:{accept:`application/json, application/yaml, text/yaml, */*`}})}catch(t){throw Error(`OpenAPI connection "${this.#n.connectionName}" failed to fetch its spec from "${e}": ${String(t)}`)}if(t.redirected&&assertSecureUrl(t.url,this.#n.connectionName,`spec`),!t.ok)throw Error(`OpenAPI connection "${this.#n.connectionName}" failed to fetch its spec from "${e}": HTTP ${t.status}.`);let n=await t.text(),r;try{r=parseSpecDocument(n)}catch(t){throw Error(`OpenAPI connection "${this.#n.connectionName}" spec at "${e}" could not be parsed as JSON or YAML: ${String(t)}`)}if(!isObject(r))throw Error(`OpenAPI connection "${this.#n.connectionName}" spec at "${e}" is not an OpenAPI document object.`);return r}#s(e){let t=e.paths;if(!isObject(t))return[];let n=[],r=new Set;for(let[i,a]of Object.entries(t)){if(!isObject(a))continue;let t=isArray(a.parameters)?a.parameters:[];for(let o of HTTP_METHODS){let s=a[o];if(!isObject(s))continue;let c=uniqueName(operationName(s,o,i),r),l=isArray(s.parameters)?s.parameters:[],u=[...t,...l],d=this.#c(e,u),f=this.#l(e,s.requestBody,u);n.push({toolName:c,method:o,pathTemplate:i,description:operationDescription(s),parameters:d,requestBody:f,inputSchema:buildInputSchema(d,f),security:resolveSecurity(e,s)})}}return n}#c(e,t){let n=[];for(let r of t){let t=isObject(r)?deref(e,r):r;if(!isObject(t))continue;let i=t.in;if(i!==`path`&&i!==`query`&&i!==`header`&&i!==`cookie`||typeof t.name!=`string`)continue;let a=this.#u(e,t);n.push({name:t.name,location:i,required:t.required===!0||i===`path`,schema:a,description:typeof t.description==`string`?t.description:void 0})}return n}#l(e,t,n=[]){if(isObject(t)){let n=deref(e,t);if(isObject(n)&&isObject(n.content)){let t=n.content,r=`application/json`in t?`application/json`:Object.keys(t)[0];if(r!==void 0){let i=t[r],a=isObject(i)&&isObject(i.schema)?derefSchema(e,i.schema):{};return{required:n.required===!0,contentType:r,schema:a}}}}return this.#d(e,n)}#u(e,t){if(isObject(t.schema))return derefSchema(e,t.schema);let n={};for(let e of SWAGGER_PARAMETER_SCHEMA_KEYS)t[e]!==void 0&&(n[e]=t[e]);return derefSchema(e,n)}#d(e,t){for(let n of t){let t=isObject(n)?deref(e,n):n;if(!isObject(t)||t.in!==`body`)continue;let r=isObject(t.schema)?derefSchema(e,t.schema):{};return{required:t.required===!0,contentType:`application/json`,schema:r}}}async#f(e,t,n,r){let i=await resolveProvidedArguments({args:n,callId:r.callId,connection:this.#n,toolName:e.toolName}),a=await resolveHeaders(this.#n),o=e.pathTemplate,s=new URLSearchParams,c=[];for(let t of e.parameters){let e=i[t.name];e!=null&&(t.location===`path`?o=o.replace(`{${t.name}}`,encodeURIComponent(String(e))):t.location===`query`?appendQuery(s,t.name,e):t.location===`cookie`?c.push(`${t.name}=${encodeURIComponent(String(e))}`):a[t.name]=String(e))}if(applySecurity(e.security,this.#n,a,s,c),c.length>0){let e=a.cookie??a.Cookie;delete a.Cookie,a.cookie=[e,...c].filter(e=>!!e).join(`; `)}let l=new URL(joinPath(t,o));l.search=s.toString();let u;e.requestBody!==void 0&&i.body!==void 0&&(u=JSON.stringify(i.body),a[`content-type`]=e.requestBody.contentType);let d=await fetch(l,{method:e.method.toUpperCase(),headers:a,body:u,signal:r?.abortSignal});return{status:d.status,statusText:d.statusText,body:await readResponseBody(d)}}};function appendQuery(e,t,n){if(isArray(n)){for(let r of n)e.append(t,String(r));return}e.append(t,String(n))}function joinPath(e,t){return`${e.endsWith(`/`)?e.slice(0,-1):e}${t.startsWith(`/`)?t:`/${t}`}`}function assertSecureUrl(e,t,n){let r;try{r=new URL(e)}catch{throw Error(`OpenAPI connection "${t}" has an invalid ${n} URL "${e}".`)}if(r.protocol!==`https:`&&!(r.protocol===`http:`&&isLoopbackHostname(r.hostname)))throw Error(`OpenAPI connection "${t}" must use https for its ${n} (got "${r.protocol}//${r.host}").`)}async function readResponseBody(e){let t=await e.text();if(t.length===0)return null;if((e.headers.get(`content-type`)??``).includes(`application/json`))try{return JSON.parse(t)}catch{return t}return t}export{OpenApiConnectionClient};