express-zod-api/dist/index.js

A Typescript framework to help you get an API server up and running with I/O schema validation and custom middlewares in minutes.

import*as D from"ramda";import{z as Pe}from"zod";import*as U from"ramda";import{z as yr}from"zod";var k={json:"application/json",upload:"multipart/form-data",raw:"application/octet-stream",sse:"text/event-stream",form:"application/x-www-form-urlencoded"};var Oe=class extends Error{name="RoutingError"},B=class extends Error{name="DocumentationError";cause;constructor(t,{method:r,path:o,isResponse:n}){super(t),this.cause=`${n?"Response":"Input"} schema of an Endpoint assigned to ${r.toUpperCase()} method of ${o} path.`}},et=class extends Error{name="IOSchemaError"},ce=class extends et{constructor(r){super(de(r),{cause:r});this.cause=r}name="OutputValidationError"},ee=class extends et{constructor(r){super(de(r),{cause:r});this.cause=r}name="InputValidationError"},re=class extends Error{constructor(r,o){super(de(r),{cause:r});this.cause=r;this.handled=o}name="ResultHandlerError"},Ue=class extends Error{name="MissingPeerError";constructor(t){super(`Missing peer dependency: ${t}. Please install it to use the feature.`)}};var Ct=/:([A-Za-z0-9_]+)/g,tt=e=>e.match(Ct)?.map(t=>t.slice(1))||[],Uo=e=>{let r=(e.header("content-type")||"").toLowerCase().startsWith(k.upload);return"files"in e&&r},jt={get:["query","params"],post:["body","params","files"],put:["body","params"],patch:["body","params"],delete:["query","params"]},Do=["body","query","params"],Nt=e=>e.method.toLowerCase(),rt=(e,t={})=>{let r=Nt(e);return r==="options"?{}:(t[r]||jt[r]||Do).filter(o=>o==="files"?Uo(e):!0).reduce((o,n)=>Object.assign(o,e[n]),{})},oe=e=>e instanceof Error?e:new Error(String(e)),de=e=>e instanceof yr.ZodError?e.issues.map(({path:t,message:r})=>(t.length?[t.join("/")]:[]).concat(r).join(": ")).join("; "):e instanceof ce?`output${e.cause.issues[0]?.path.length>0?"/":": "}${e.message}`:e.message,Ho=e=>Object.entries(e.shape).reduce((t,[r,o])=>{let{_def:n}=o;return me(t,(n[g]?.examples||[]).map(U.objOf(r)),([s,a])=>({...s,...a}))},[]),ne=({schema:e,variant:t="original",validate:r=t==="parsed",pullProps:o=!1})=>{let n=e._def[g]?.examples||[];if(!n.length&&o&&e instanceof yr.ZodObject&&(n=Ho(e)),!r&&t==="original")return n;let s=[];for(let a of n){let c=e.safeParse(a);c.success&&s.push(t==="parsed"?c.data:a)}return s},me=(e,t,r)=>e.length&&t.length?U.xprod(e,t).map(r):e.concat(t),De=e=>"coerce"in e._def&&typeof e._def.coerce=="boolean"?e._def.coerce:!1,Lt=e=>e.charAt(0).toUpperCase()+e.slice(1).toLowerCase(),se=(...e)=>{let t=U.chain(o=>o.split(/[^A-Z0-9]/gi),e);return U.chain(o=>o.replaceAll(/[A-Z]+/g,n=>`/${n}`).split("/"),t).map(Lt).join("")},ot=U.tryCatch((e,t)=>typeof e.parse(t),U.always(void 0)),le=e=>typeof e=="object"&&e!==null,ue=U.memoizeWith(()=>"static",()=>process.env.NODE_ENV==="production");import*as nt from"ramda";var g=Symbol.for("express-zod-api"),He=e=>{let t=e.describe(e.description);return t._def[g]=nt.clone(t._def[g])||{examples:[]},t},gr=(e,t)=>{if(!(g in e._def))return t;let r=He(t);return r._def[g].examples=me(r._def[g].examples,e._def[g].examples,([o,n])=>typeof o=="object"&&typeof n=="object"?nt.mergeDeepRight({...o},{...n}):n),r};var Ko=function(e){let t=He(this);return t._def[g].examples.push(e),t},Fo=function(){let e=He(this);return e._def[g].isDeprecated=!0,e},qo=function(e){let t=He(this);return t._def[g].defaultLabel=e,t},Bo=function(e){return new Pe.ZodBranded({typeName:Pe.ZodFirstPartyTypeKind.ZodBranded,type:this,description:this._def.description,errorMap:this._def.errorMap,[g]:{examples:[],...D.clone(this._def[g]),brand:e}})},$o=function(e){let t=typeof e=="function"?e:D.pipe(D.toPairs,D.map(([n,s])=>D.pair(e[String(n)]||n,s)),D.fromPairs),r=t(D.clone(this.shape)),o=Pe.object(r)[this._def.unknownKeys]();return this.transform(t).pipe(o)};g in globalThis||(globalThis[g]=!0,Object.defineProperties(Pe.ZodType.prototype,{example:{get(){return Ko.bind(this)}},deprecated:{get(){return Fo.bind(this)}},brand:{set(){},get(){return Bo.bind(this)}}}),Object.defineProperty(Pe.ZodDefault.prototype,"label",{get(){return qo.bind(this)}}),Object.defineProperty(Pe.ZodObject.prototype,"remap",{get(){return $o.bind(this)}}));function _o(e){return e}import{z as Cr}from"zod";import{z as vr}from"zod";import{fail as L}from"node:assert/strict";import{z as Ke}from"zod";var st=e=>!isNaN(e.getTime());var fe=Symbol("DateIn"),hr=()=>Ke.union([Ke.string().date(),Ke.string().datetime(),Ke.string().datetime({local:!0})]).transform(t=>new Date(t)).pipe(Ke.date().refine(st)).brand(fe);import{z as Vo}from"zod";var ye=Symbol("DateOut"),br=()=>Vo.date().refine(st).transform(e=>e.toISOString()).brand(ye);import{z as it}from"zod";var G=Symbol("File"),xr=it.custom(e=>Buffer.isBuffer(e),{message:"Expected Buffer"}),Go={buffer:()=>xr.brand(G),string:()=>it.string().brand(G),binary:()=>xr.or(it.string()).brand(G),base64:()=>it.string().base64().brand(G)};function at(e){return Go[e||"string"]()}import{z as Sr}from"zod";var pt=Symbol("Form"),Rr=e=>(e instanceof Sr.ZodObject?e:Sr.object(e)).brand(pt);import{z as Jo}from"zod";var ie=Symbol("Raw"),Tr=Jo.object({raw:at("buffer")});function Or(e){return(e?Tr.extend(e):Tr).brand(ie)}import{z as Wo}from"zod";var we=Symbol("Upload"),Pr=()=>Wo.custom(e=>typeof e=="object"&&e!==null&&"name"in e&&"encoding"in e&&"mimetype"in e&&"data"in e&&"tempFilePath"in e&&"truncated"in e&&"size"in e&&"md5"in e&&"mv"in e&&typeof e.name=="string"&&typeof e.encoding=="string"&&typeof e.mimetype=="string"&&Buffer.isBuffer(e.data)&&typeof e.tempFilePath=="string"&&typeof e.truncated=="boolean"&&typeof e.size=="number"&&typeof e.md5=="string"&&typeof e.mv=="function",e=>({message:`Expected file upload, received ${typeof e}`})).brand(we);var wr=(e,{next:t})=>e.options.some(t),Yo=({_def:e},{next:t})=>[e.left,e.right].some(t),ct=(e,{next:t})=>t(e.unwrap()),dt={ZodObject:({shape:e},{next:t})=>Object.values(e).some(t),ZodUnion:wr,ZodDiscriminatedUnion:wr,ZodIntersection:Yo,ZodEffects:(e,{next:t})=>t(e.innerType()),ZodOptional:ct,ZodNullable:ct,ZodRecord:({valueSchema:e},{next:t})=>t(e),ZodArray:({element:e},{next:t})=>t(e),ZodDefault:({_def:e},{next:t})=>t(e.innerType)},Fe=(e,{condition:t,rules:r=dt,depth:o=1,maxDepth:n=Number.POSITIVE_INFINITY})=>{if(t?.(e))return!0;let s=o<n?r[e._def[g]?.brand]||"typeName"in e._def&&r[e._def.typeName]:void 0;return s?s(e,{next:a=>Fe(a,{condition:t,rules:r,maxDepth:n,depth:o+1})}):!1},Ar=e=>Fe(e,{condition:t=>t._def[g]?.brand===we,rules:{...dt,[pt]:(t,{next:r})=>Object.values(t.unwrap().shape).some(r)}}),mt=e=>Fe(e,{condition:t=>t._def[g]?.brand===ie,maxDepth:3}),Er=e=>Fe(e,{condition:t=>t._def[g]?.brand===pt,maxDepth:3}),zr=(e,t)=>{let r=new WeakSet;return Fe(e,{maxDepth:300,rules:{...dt,ZodBranded:ct,ZodReadonly:ct,ZodCatch:({_def:{innerType:o}},{next:n})=>n(o),ZodPipeline:({_def:o},{next:n})=>n(o[t]),ZodLazy:(o,{next:n})=>r.has(o)?!1:r.add(o)&&n(o.schema),ZodTuple:({items:o,_def:{rest:n}},{next:s})=>[...o].concat(n??[]).some(s),ZodEffects:{out:void 0,in:dt.ZodEffects}[t],ZodNaN:()=>L("z.nan()"),ZodSymbol:()=>L("z.symbol()"),ZodFunction:()=>L("z.function()"),ZodMap:()=>L("z.map()"),ZodSet:()=>L("z.set()"),ZodBigInt:()=>L("z.bigint()"),ZodVoid:()=>L("z.void()"),ZodPromise:()=>L("z.promise()"),ZodNever:()=>L("z.never()"),ZodDate:()=>t==="in"&&L("z.date()"),[ye]:()=>t==="in"&&L("ez.dateOut()"),[fe]:()=>t==="out"&&L("ez.dateIn()"),[ie]:()=>t==="out"&&L("ez.raw()"),[we]:()=>t==="out"&&L("ez.upload()"),[G]:()=>!1}})};import en,{isHttpError as tn}from"http-errors";import Ir,{isHttpError as Qo}from"http-errors";import{z as Xo}from"zod";var Mt=(e,{variant:t,args:r,...o})=>{if(typeof e=="function"&&(e=e(...r)),e instanceof Xo.ZodType)return[{schema:e,...o}];if(Array.isArray(e)&&!e.length){let n=new Error(`At least one ${t} response schema required.`);throw new re(n)}return(Array.isArray(e)?e:[e]).map(({schema:n,statusCode:s,mimeType:a})=>({schema:n,statusCodes:typeof s=="number"?[s]:s||o.statusCodes,mimeTypes:typeof a=="string"?[a]:a===void 0?o.mimeTypes:a}))},qe=(e,t,{url:r},o)=>!e.expose&&t.error("Server side error",{error:e,url:r,payload:o}),Ae=e=>Qo(e)?e:Ir(e instanceof ee?400:500,de(e),{cause:e.cause||e}),ge=e=>ue()&&!e.expose?Ir(e.statusCode).message:e.message;var lt=({error:e,logger:t,response:r})=>{t.error("Result handler failure",e);let o=ge(en(500,`An error occurred while serving the result: ${e.message}.`+(e.handled?`
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Accumulated options:",o);break}}async#n({input:t,...r}){let o;try{o=await this.#e.inputSchema.parseAsync(t)}catch(n){throw n instanceof vr.ZodError?new ee(n):n}return this.#e.handler({...r,input:o})}async#s({error:t,...r}){try{await this.#e.resultHandler.execute({...r,error:t})}catch(o){lt({...r,error:new re(oe(o),t||void 0)})}}async execute({request:t,response:r,logger:o,config:n}){let s=Nt(t),a={},c=null,m=null,p=rt(t,n.inputSources);try{if(await this.#o({method:s,input:p,request:t,response:r,logger:o,options:a}),r.writableEnded)return;if(s==="options")return void r.status(200).end();c=await this.#r(await this.#n({input:p,logger:o,options:a}))}catch(l){m=oe(l)}await this.#s({input:p,output:c,request:t,response:r,error:m,logger:o,options:a})}};import{z as he}from"zod";var kr=(e,t)=>{let r=e.map(n=>n.getSchema()).concat(t),o=r.reduce((n,s)=>n.and(s));return r.reduce((n,s)=>gr(s,n),o)},$=e=>e instanceof he.ZodObject?e:e instanceof he.ZodBranded?$(e.unwrap()):e instanceof he.ZodUnion||e instanceof he.ZodDiscriminatedUnion?e.options.map(t=>$(t)).reduce((t,r)=>t.merge(r.partial()),he.object({})):e instanceof he.ZodEffects?$(e._def.schema):e instanceof he.ZodPipeline?$(e._def.in):$(e._def.left).merge($(e._def.right));import{z as W}from"zod";var Ie={positive:200,negative:400},Ze=Object.keys(Ie);var Dt=class{#e;constructor(t){this.#e=t}execute(...t){return this.#e(...t)}},be=class extends Dt{#e;#t;constructor(t){super(t.handler),this.#e=t.positive,this.#t=t.negative}getPositiveResponse(t){return Mt(this.#e,{variant:"positive",args:[t],statusCodes:[Ie.positive],mimeTypes:[k.json]})}getNegativeResponse(){return Mt(this.#t,{variant:"negative",args:[],statusCodes:[Ie.negative],mimeTypes:[k.json]})}},$e=new be({positive:e=>{let t=ne({schema:e,pullProps:!0}),r=W.object({status:W.literal("success"),data:e});return t.reduce((o,n)=>o.example({status:"success",data:n}),r)},negative:W.object({status:W.literal("error"),error:W.object({message:W.string()})}).example({status:"error",error:{message:"Sample error message"}}),handler:({error:e,input:t,output:r,request:o,response:n,logger:s})=>{if(e){let a=Ae(e);return qe(a,s,o,t),void n.status(a.statusCode).set(a.headers).json({status:"error",error:{message:ge(a)}})}n.status(Ie.positive).json({status:"success",data:r})}}),Ht=new be({positive:e=>{let t=ne({schema:e}),r="shape"in e&&"items"in e.shape&&e.shape.items instanceof W.ZodArray?e.shape.items:W.array(W.any());return t.reduce((o,n)=>le(n)&&"items"in n&&Array.isArray(n.items)?o.example(n.items):o,r)},negative:W.string().example("Sample error message"),handler:({response:e,output:t,error:r,logger:o,request:n,input:s})=>{if(r){let a=Ae(r);return qe(a,o,n,s),void e.status(a.statusCode).type("text/plain").send(ge(a))}if(t&&"items"in t&&Array.isArray(t.items))return void e.status(Ie.positive).json(t.items);throw new Error("Property 'items' is missing in the endpoint output")}});var xe=class e{constructor(t){this.resultHandler=t}middlewares=[];static#e(t,r){let o=new e(r);return o.middlewares=t,o}addMiddleware(t){return e.#e(this.middlewares.concat(t instanceof J?t:new J(t)),this.resultHandler)}use=this.addExpressMiddleware;addExpressMiddleware(...t){return e.#e(this.middlewares.concat(new Ee(...t)),this.resultHandler)}addOptions(t){return e.#e(this.middlewares.concat(new J({handler:t})),this.resultHandler)}build({input:t=Cr.object({}),output:r,operationId:o,scope:n,tag:s,method:a,...c}){let{middlewares:m,resultHandler:p}=this,l=typeof a=="string"?[a]:a,b=typeof o=="function"?o:()=>o,h=typeof n=="string"?[n]:n||[],x=typeof s=="string"?[s]:s||[];return new ut({...c,middlewares:m,outputSchema:r,resultHandler:p,scopes:h,tags:x,methods:l,getOperationId:b,inputSchema:kr(m,t)})}buildVoid({handler:t,...r}){return this.build({...r,output:Cr.object({}),handler:async o=>(await t(o),{})})}},rn=new xe($e),on=new xe(Ht);import mn from"ansis";import{inspect as ln}from"node:util";import{performance as Dr}from"node:perf_hooks";import{blue as nn,green as sn,hex as an,red as pn,cyanBright as cn}from"ansis";import*as jr from"ramda";var Kt={debug:nn,info:sn,warn:an("#FFA500"),error:pn,ctx:cn},ft={debug:10,info:20,warn:30,error:40},Nr=e=>le(e)&&Object.keys(ft).some(t=>t in e),Lr=e=>e in ft,Mr=(e,t)=>ft[e]<ft[t],dn=(e,t=0)=>Intl.NumberFormat(void 0,{useGrouping:!1,minimumFractionDigits:0,maximumFractionDigits:t,style:"unit",unitDisplay:"long",unit:e}),ve=jr.memoizeWith((e,t)=>`${e}${t}`,dn),Ur=e=>e<1e-6?ve("nanosecond",3).format(e/1e-6):e<.001?ve("nanosecond").format(e/1e-6):e<1?ve("microsecond").format(e/.001):e<1e3?ve("millisecond").format(e):e<6e4?ve("second",2).format(e/1e3):ve("minute",2).format(e/6e4);var _e=class e{config;constructor({color:t=mn.isSupported(),level:r=ue()?"warn":"debug",depth:o=2,ctx:n={}}={}){this.config={color:t,level:r,depth:o,ctx:n}}format(t){let{depth:r,color:o,level:n}=this.config;return ln(t,{depth:r,colors:o,breakLength:n==="debug"?80:1/0,compact:n==="debug"?3:!0})}print(t,r,o){let{level:n,ctx:{requestId:s,...a},color:c}=this.config;if(n==="silent"||Mr(t,n))return;let m=[new Date().toISOString()];s&&m.push(c?Kt.ctx(s):s),m.push(c?`${Kt[t](t)}:`:`${t}:`,r),o!==void 0&&m.push(this.format(o)),Object.keys(a).length>0&&m.push(this.format(a)),console.log(m.join(" "))}debug(t,r){this.print("debug",t,r)}info(t,r){this.print("info",t,r)}warn(t,r){this.print("warn",t,r)}error(t,r){this.print("error",t,r)}child(t){return new e({...this.config,ctx:t})}get ctx(){return this.config.ctx}profile(t){let r=Dr.now();return()=>{let o=Dr.now()-r,{message:n,severity:s="debug",formatter:a=Ur}=typeof t=="object"?t:{message:t};this.print(typeof s=="function"?s(o):s,n,a(o))}}};import*as ke from"ramda";var Ve=class e extends ze{#e;constructor(t){super(),this.#e=t}get entries(){let t=[],r=ke.keys(this.#e);for(let o of r){let n=this.#e[o];n&&t.push([o,n,ke.reject(ke.equals(o),r)])}return Object.freeze(t)}deprecated(){let t=Object.entries(this.#e).reduce((r,[o,n])=>Object.assign(r,{[o]:n.deprecated()}),{});return new e(t)}};import un from"express";var Ge=class{params;constructor(...t){this.params=t}apply(t,r){return r(t,un.static(...this.params))}};import ht from"express";import Tn from"node:http";import On from"node:https";var Ce=async(e,t="default")=>{try{return(await import(e))[t]}catch{}throw new Ue(e)};import fn from"http-errors";import*as Hr from"ramda";var yt=class{constructor(t){this.logger=t}#e=Hr.tryCatch(zr);#t=new WeakSet;#r=new WeakMap;checkJsonCompat(t,r){if(!this.#t.has(t)){t.getRequestType()==="json"&&this.#e(o=>this.logger.warn("The final input schema of the endpoint contains an unsupported JSON payload 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