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const {Fragment: _Fragment, jsx: _jsx, jsxs: _jsxs} = arguments[0];
function _createMdxContent(props) {
  const _components = Object.assign({
    p: "p",
    h2: "h2",
    a: "a",
    pre: "pre",
    code: "code",
    span: "span",
    ul: "ul",
    li: "li",
    em: "em"
  }, props.components), {Link} = _components;
  if (!Link) _missingMdxReference("Link", true);
  return _jsxs(_Fragment, {
    children: [_jsx(_components.p, {
      children: "Vert.x 4.1 comes with plenty of new ex­cit­ing fea­tures."
    }), "\n", _jsx(_components.p, {
      children: "Here is an overview of the most im­por­tant fea­tures sup­ported in Vert.x 4.1."
    }), "\n", _jsxs(_components.h2, {
      id: "reactive-microsoft-sql-server-client",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#reactive-microsoft-sql-server-client"
      }), "Reactive Microsoft SQL Server Client"]
    }), "\n", _jsxs(_components.p, {
      children: ["The ", _jsx(Link, {
        href: "/docs/4.1.0/vertx-mssql-client/java/",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "Re­ac­tive Mi­crosoft SQL Server Client"
        })
      }), " joins the ", _jsx(Link, {
        href: "/docs/#databases",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "data­base clients"
        })
      }), " fam­ily!"]
    }), "\n", _jsx(_components.p, {
      children: "In this first re­lease, sev­eral com­mon data types are sup­ported, as well as pre­pared state­ments and trans­ac­tions."
    }), "\n", _jsxs(_components.h2, {
      id: "vertx-http-proxy",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#vertx-http-proxy"
      }), "Vert.x HTTP Proxy"]
    }), "\n", _jsxs(_components.p, {
      children: ["It is very easy to write an HTTP proxy with Vert.x, yet there are a lot of things that ", _jsx(_components.a, {
        href: "https://www.mnot.net/blog/2011/07/11/what_proxies_must_do",
        children: "prox­ies must do"
      }), "."]
    }), "\n", _jsxs(_components.p, {
      children: [_jsx(Link, {
        href: "/docs/4.1.0/vertx-http-proxy/java/",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "Vert.x HTTP Proxy"
        })
      }), " is a new com­po­nent of the stack that aims to make it easy to write prox­ies."]
    }), "\n", _jsx(_components.p, {
      children: "You can cre­ate a proxy as fol­lows:"
    }), "\n", _jsx(_components.pre, {
      children: _jsxs(_components.code, {
        className: "hljs language-java",
        children: ["proxyServer.requestHandler(\n       HttpProxy.reverseProxy(vertx.createHttpClient())\n       .origin(", _jsx(_components.span, {
          className: "hljs-number",
          children: "7070"
        }), ", ", _jsx(_components.span, {
          className: "hljs-string",
          children: "\"localhost\""
        }), "))\n   .listen(", _jsx(_components.span, {
          className: "hljs-number",
          children: "8080"
        }), ");\n"]
      })
    }), "\n", _jsx(_components.p, {
      children: "The proxy can also dy­nam­i­cally re­solve the ori­gin (i.e the prox­ied server):"
    }), "\n", _jsx(_components.pre, {
      children: _jsxs(_components.code, {
        className: "hljs language-java",
        children: [_jsx(_components.span, {
          className: "hljs-type",
          children: "HttpProxy"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "proxy"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " HttpProxy.reverseProxy(proxyClient).originSelector(\n  address -> resolveOrigin(address)\n);\n"]
      })
    }), "\n", _jsxs(_components.p, {
      children: [_jsx(Link, {
        href: "/docs/4.1.0/vertx-web-proxy/java/",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "Vert.x Web Proxy"
        })
      }), " in­te­grates the proxy with Vert.x Web."]
    }), "\n", _jsx(_components.p, {
      children: "This com­po­nent is in tech pre­view and will re­ceive more fea­tures over time."
    }), "\n", _jsxs(_components.h2, {
      id: "rxjava-3",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#rxjava-3"
      }), "RxJava 3"]
    }), "\n", _jsxs(_components.p, {
      children: ["Vert.x has been sup­port­ing Rx­Java for many years, the ", _jsx(Link, {
        href: "/docs/4.1.0/vertx-rx/java3/",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "Rx­Java 3 sup­port"
        })
      }), " has landed in 4.1"]
    }), "\n", _jsx(_components.p, {
      children: "The rx­i­fied API works like pre­vi­ous ver­sions, how­ever reg­u­lar meth­ods are ex­posed with Rx­Java types\nin­stead of call­backs since Vert.x 4 async model is based on fu­tures."
    }), "\n", _jsx(_components.pre, {
      children: _jsxs(_components.code, {
        className: "hljs language-java",
        children: ["server.requestHandler(req -> {\n  ", _jsx(_components.span, {
          className: "hljs-type",
          children: "HttpServerResponse"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "resp"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " req.respone();\n  resp.setChunked(", _jsx(_components.span, {
          className: "hljs-literal",
          children: "true"
        }), ");\n\n  ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// No need to subscribe to the completable"
        }), "\n  ", _jsx(_components.span, {
          className: "hljs-type",
          children: "Completable"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "c1"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " resp.write(", _jsx(_components.span, {
          className: "hljs-string",
          children: "\"1\""
        }), ");\n\n  ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// Write result is cached, this will send"
        }), "\n  ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// 1"
        }), "\n  c1.subscribe();\n  c1.subscribe();\n\n  ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// The Rxified API however requires subscription to trigger the call"
        }), "\n  ", _jsx(_components.span, {
          className: "hljs-type",
          children: "Completable"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "c2"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " resp.rxWrite(", _jsx(_components.span, {
          className: "hljs-string",
          children: "\"2\""
        }), ");\n\n  ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// Write is subscription based, this will send"
        }), "\n  ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// 2"
        }), "\n  ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// 2"
        }), "\n  c2.subscribe();\n  c2.subscribe();\n});\n"]
      })
    }), "\n", _jsxs(_components.h2, {
      id: "open-telemetry-support",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#open-telemetry-support"
      }), "Open Telemetry support"]
    }), "\n", _jsxs(_components.p, {
      children: [_jsx(Link, {
        href: "/docs/4.1.0/vertx-opentelemetry/java/",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "Open Teleme­try"
        })
      }), " trac­ing is a new and no­tice­able trac­ing in­te­gra­tion avail­able in 4.1."]
    }), "\n", _jsxs(_components.h2, {
      id: "service-proxy-with-futures",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#service-proxy-with-futures"
      }), "Service proxy with futures"]
    }), "\n", _jsx(_components.p, {
      children: "Vert.x 4 pro­vides a future-​first API. How­ever, ser­vice prox­ies can only be de­clared with call­backs."
    }), "\n", _jsx(_components.p, {
      children: "We ad­dressed this issue in Vert.x 4.1 and you can now write ser­vice prox­ies with fu­tures. The only change you\nneed is to de­clare the fu­ture usage in the Code­gen mod­ule de­c­la­ra­tion."
    }), "\n", _jsxs(_components.h2, {
      id: "vertx-web",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#vertx-web"
      }), "Vertx-Web"]
    }), "\n", _jsx(_components.p, {
      children: "In this re­lease, we im­proved the log­ging han­dler to en­able cus­tom log­ging for­mats."
    }), "\n", _jsx(_components.p, {
      children: "The OAuth2 han­dler now fol­lows the OIDC stan­dard by val­i­dat­ing the re­quested scopes are present in the OAuth2 re­sponse. A new APIKEY han­dler was added to sup­port more se­cu­rity use cases, and it is now pos­si­ble to write cus­tom authn han­dlers with­out re­quir­ing in­ter­nal classes."
    }), "\n", _jsxs(_components.p, {
      children: ["The API ", _jsx(_components.code, {
        children: "ctx.json()"
      }), " now fol­lows the IANA con­tent type stan­dard."]
    }), "\n", _jsxs(_components.h2, {
      id: "vertx-web-openapi",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#vertx-web-openapi"
      }), "Vertx-Web OpenAPI"]
    }), "\n", _jsx(_components.p, {
      children: "A lot of com­mu­nity dis­cus­sions and work has been done to im­prove the se­cu­rity han­dling of Ope­nAPI in Vert.x. We now sup­port all kinds of se­cu­rity de­scribed in Ope­nAPI 3.0, OpenId, OAuth2, API-​Key, HTTP."
    }), "\n", _jsx(_components.p, {
      children: "The new API also al­lows for fetch­ing the se­cu­rity con­fig­u­ra­tion from the doc­u­ment it­self, rather than hav­ing it double-​configured in the doc­u­ment and in the code."
    }), "\n", _jsxs(_components.h2, {
      id: "vertx-auth",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#vertx-auth"
      }), "Vertx-Auth"]
    }), "\n", _jsxs(_components.p, {
      children: ["In the Vert.x auth mod­ule, sup­port for ", _jsx(_components.code, {
        children: "EdDSA"
      }), " was added to the JOSE/COSE code. This means that we can now use those al­go­rithms in JWT/OAuth2/OIDC/FIDO2. The sup­port re­lies only on the pro­vided JDK which means that users will need to use JDK 15 or above to be able to use those al­go­rithms."]
    }), "\n", _jsxs(_components.p, {
      children: ["In the JOSE code, im­prove­ments were made to cor­rectly fol­low the ", _jsx(_components.code, {
        children: "use"
      }), " value of a JWK and more tests were added to ver­ify that we in­terop prop­erly with to­kens gen­er­ated by other li­braries."]
    }), "\n", _jsxs(_components.p, {
      children: ["Fi­nally, in ", _jsx(_components.code, {
        children: "FIDO2/Webauthn"
      }), " we fol­low the rec­om­men­da­tion of stor­ing the at­tes­ta­tion cer­tifi­cates, which al­lows of­fline val­i­da­tion of de­vices. This is a util­ity that al­lows you to check if to­kens have been com­pro­mised and dis­able their fu­ture use at the RP."]
    }), "\n", _jsxs(_components.h2, {
      id: "kotlin-15-support",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#kotlin-15-support"
      }), "Kotlin 1.5 support"]
    }), "\n", _jsx(_components.p, {
      children: "Vert.x 4.1 sup­ports Kotlin 1.5"
    }), "\n", _jsxs(_components.h2, {
      id: "general-pool-improvements",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#general-pool-improvements"
      }), "General pool improvements"]
    }), "\n", _jsx(_components.p, {
      children: "Vert.x in­ter­nal pool has been im­proved to gain more flex­i­bil­ity with new fea­tures such as"
    }), "\n", _jsxs(_components.ul, {
      children: ["\n", _jsx(_components.li, {
        children: "mul­ti­ple event loops per pool"
      }), "\n", _jsx(_components.li, {
        children: "waiter can­cel­la­tion"
      }), "\n", _jsx(_components.li, {
        children: "lock free im­ple­men­ta­tion"
      }), "\n", _jsx(_components.li, {
        children: "con­nec­tion se­lec­tion strat­egy"
      }), "\n"]
    }), "\n", _jsx(_components.p, {
      children: "In ad­di­tion, the in­ter­nal pool is now used by the Vert.x SQL Client and Vert.x Mail Clients."
    }), "\n", _jsxs(_components.h2, {
      id: "web-session-storage-with-infinispan",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#web-session-storage-with-infinispan"
      }), "Web Session Storage with Infinispan"]
    }), "\n", _jsxs(_components.p, {
      children: ["Vert.x Web ", _jsx(Link, {
        href: "/docs/4.1.0/vertx-web/java/#_session_stores",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "ses­sion stor­age"
        })
      }), " is plug­gable.\nIn this ver­sion, a new ses­sion store with ", _jsx(_components.a, {
        href: "https://infinispan.org/",
        children: "In­fin­is­pan"
      }), " in-​memory data grid is avail­able."]
    }), "\n", _jsx(_components.p, {
      children: "It is im­ple­mented on top of the In­fin­is­pan client so it can be used with ei­ther stand­alone or clus­tered Vert.x ap­pli­ca­tions."
    }), "\n", _jsxs(_components.p, {
      children: ["If you want to get started, don’t miss the ", _jsxs(_components.a, {
        href: "https://how-to.vertx.io/web-session-infinispan-howto/",
        children: [_jsx(_components.em, {
          children: "Web Ses­sion Stor­age with In­fin­is­pan Client"
        }), " how-​to"]
      }), "."]
    })]
  });
}
function MDXContent(props = {}) {
  const {wrapper: MDXLayout} = props.components || ({});
  return MDXLayout ? _jsx(MDXLayout, Object.assign({}, props, {
    children: _jsx(_createMdxContent, props)
  })) : _createMdxContent(props);
}
return {
  default: MDXContent
};
function _missingMdxReference(id, component) {
  throw new Error("Expected " + (component ? "component" : "object") + " `" + id + "` to be defined: you likely forgot to import, pass, or provide it.");
}


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What's new in Vert.x 4.1

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What's new in Vert.x 4.1

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