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function _createMdxContent(props) {
  const _components = Object.assign({
    p: "p",
    h2: "h2",
    a: "a",
    pre: "pre",
    code: "code",
    span: "span",
    ul: "ul",
    li: "li"
  }, props.components), {Link} = _components;
  if (!Link) _missingMdxReference("Link", true);
  return _jsxs(_Fragment, {
    children: [_jsx(_components.p, {
      children: "Vert.x 4.4 comes with few new ex­cit­ing fea­tures."
    }), "\n", _jsx(_components.p, {
      children: "Here is an overview of the most im­por­tant fea­tures in Vert.x 4.4."
    }), "\n", _jsxs(_components.h2, {
      id: "new-openapi-implementation",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#new-openapi-implementation"
      }), "New OpenAPI implementation"]
    }), "\n", _jsx(_components.p, {
      children: "A new im­ple­men­ta­tion of Ope­nAPI using the lat­est Json­Schema API is avail­able as tech pre­view. This new im­ple­men­ta­tion al­lows both Ope­nAPI 3.0 and Ope­nAPI 3.1 doc­u­ments to be used as a foun­da­tion for a router."
    }), "\n", _jsx(_components.pre, {
      children: _jsxs(_components.code, {
        className: "hljs language-java",
        children: [_jsx(_components.span, {
          className: "hljs-comment",
          children: "// the api contract yaml or json"
        }), "\n", _jsx(_components.span, {
          className: "hljs-type",
          children: "OpenAPIContract"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "contract"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " getContract();\n", _jsx(_components.span, {
          className: "hljs-type",
          children: "RouterBuilder"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "routerBuilder"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " RouterBuilder.create(vertx, contract);\n", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// the ready to mount router that matches the provided contract"
        }), "\n", _jsx(_components.span, {
          className: "hljs-type",
          children: "Router"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "router"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " routerBuilder.createRouter();\n"]
      })
    }), "\n", _jsx(_components.p, {
      children: "As well as it al­lows both input val­i­da­tion, and (as a to­tally new fea­ture) out­put val­i­da­tion."
    }), "\n", _jsx(_components.pre, {
      children: _jsxs(_components.code, {
        className: "hljs language-java",
        children: [_jsx(_components.span, {
          className: "hljs-type",
          children: "RequestValidator"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "validator"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " RequestValidator.create(vertx, contract);\n\n", _jsx(_components.span, {
          className: "hljs-type",
          children: "ValidatableRequest"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "request"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " getValidatableRequest();\nvalidator.validate(request, ", _jsx(_components.span, {
          className: "hljs-string",
          children: "\"yourOperationId\""
        }), ")\n  .onSuccess(validatedRequest -> {\n    validatedRequest.getBody(); ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// returns the body"
        }), "\n    validatedRequest.getHeaders(); ", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// returns the header"
        }), "\n...\n"]
      })
    }), "\n", _jsx(_components.p, {
      children: "And:"
    }), "\n", _jsx(_components.pre, {
      children: _jsxs(_components.code, {
        className: "hljs language-java",
        children: [_jsx(_components.span, {
          className: "hljs-type",
          children: "ResponseValidator"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "validator"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " ResponseValidator.create(vertx, contract);\n\n", _jsx(_components.span, {
          className: "hljs-type",
          children: "JsonObject"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "cat"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " ", _jsx(_components.span, {
          className: "hljs-keyword",
          children: "new"
        }), " ", _jsx(_components.span, {
          className: "hljs-title class_",
          children: "JsonObject"
        }), "().put(", _jsx(_components.span, {
          className: "hljs-string",
          children: "\"name\""
        }), ", ", _jsx(_components.span, {
          className: "hljs-string",
          children: "\"foo\""
        }), ");\n", _jsx(_components.span, {
          className: "hljs-type",
          children: "ValidatableResponse"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "response"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), "\n      ValidatableResponse.create(", _jsx(_components.span, {
          className: "hljs-number",
          children: "200"
        }), ", cat.toBuffer(), APPLICATION_JSON.toString());\n...\n", _jsx(_components.span, {
          className: "hljs-comment",
          children: "// send back the validated response"
        }), "\nvalidatedResponse.send(httpServerRequest.response());\n"]
      })
    }), "\n", _jsxs(_components.h2, {
      id: "vertx-io_uring-transport",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#vertx-io_uring-transport"
      }), "Vert.x io_uring transport"]
    }), "\n", _jsx(_components.p, {
      children: "Vert.x io_uring is a trans­port using the io_uring in­ter­face of the Linux ker­nel, pro­vid­ing a high I/O per­for­mance scal­able in­ter­face\nfor fully asyn­chro­nous Linux syscalls."
    }), "\n", _jsx(_components.p, {
      children: "Some Vert.x com­po­nents will lever­age this trans­port:"
    }), "\n", _jsxs(_components.ul, {
      children: ["\n", _jsx(_components.li, {
        children: "Vert.x Core TCP, HTTP, data­gram servers/clients"
      }), "\n", _jsx(_components.li, {
        children: "Post­greSQL, MySQL, MSSQL and DB2 re­ac­tive clients"
      }), "\n", _jsx(_components.li, {
        children: "Vert.x gRPC"
      }), "\n", _jsx(_components.li, {
        children: "…"
      }), "\n"]
    }), "\n", _jsxs(_components.p, {
      children: ["You can read the the full list ", _jsx(Link, {
        href: "/docs/vertx-io_uring-incubator/java/",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "here"
        })
      })]
    }), "\n", _jsxs(_components.h2, {
      id: "ssl",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#ssl"
      }), "SSL"]
    }), "\n", _jsx(_components.p, {
      children: "Vert.x now dis­ables TLS 1.0/1.1 and en­ables TLS 1.3 by de­fault."
    }), "\n", _jsx(_components.p, {
      children: "You can now up­date Vert.x HTTP server/client cer­tifi­cates on the fly:"
    }), "\n", _jsx(_components.pre, {
      children: _jsxs(_components.code, {
        className: "hljs language-java",
        children: ["vertx.setPeriodic(REFRESH_PERIOD, id -> {\n  ", _jsx(_components.span, {
          className: "hljs-type",
          children: "SSLOptions"
        }), " ", _jsx(_components.span, {
          className: "hljs-variable",
          children: "options"
        }), " ", _jsx(_components.span, {
          className: "hljs-operator",
          children: "="
        }), " peekUpdatedConfiguration();\n  server.updateSSLOptions(options);\n});\n"]
      })
    }), "\n", _jsxs(_components.h2, {
      id: "improvements-to-the-graphql-java-integration",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#improvements-to-the-graphql-java-integration"
      }), "Improvements to the GraphQL-Java integration"]
    }), "\n", _jsxs(_components.p, {
      children: ["Vert.x 4.4 ships sev­eral im­prove­ments to the ", _jsx(Link, {
        href: "/docs/vertx-web-graphql/java/",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "GraphQL-​Java in­te­gra­tion with Vert.x Web"
        })
      }), "."]
    }), "\n", _jsxs(_components.p, {
      children: ["In ", _jsx(Link, {
        href: "/blog/vertx-web-graphql-java-improvements/",
        passHref: true,
        children: _jsx(_components.a, {
          href: "",
          children: "a follow-​up ar­ti­cle"
        })
      }), ", we go through the most im­por­tant of them:"]
    }), "\n", _jsxs(_components.ul, {
      children: ["\n", _jsx(_components.li, {
        children: "GraphiQL IDE up­grade (slick UI and sub­scrip­tions sup­port),"
      }), "\n", _jsx(_components.li, {
        children: "sim­pli­fied data fetcher de­f­i­n­i­tions (using in­stru­men­ta­tion),"
      }), "\n", _jsx(_components.li, {
        children: "sup­port of Apollo’s Au­to­matic Per­sisted Queries (APQ)."
      }), "\n"]
    }), "\n", _jsxs(_components.h2, {
      id: "various-improvements",
      children: [_jsx(_components.a, {
        "aria-hidden": true,
        tabIndex: "-1",
        className: "heading-anchor",
        href: "#various-improvements"
      }), "Various improvements"]
    }), "\n", _jsxs(_components.ul, {
      children: ["\n", _jsx(_components.li, {
        children: _jsx(_components.a, {
          href: "https://github.com/eclipse-vertx/vertx-sql-client/pull/1231",
          children: "SQL client Cre­ate prop­a­gat­able con­nec­tion, add Trans­ac­tion ac­ces­sor"
        })
      }), "\n", _jsx(_components.li, {
        children: _jsx(_components.a, {
          href: "https://github.com/vert-x3/vertx-web/issues/2329",
          children: "vertx-​rx In­stru­men­ta­tion for re­ac­tive data fetch­ers"
        })
      }), "\n", _jsx(_components.li, {
        children: _jsx(_components.a, {
          href: "https://github.com/vert-x3/vertx-mqtt/pull/224",
          children: "MQTT Fea­ture/un­sub­scribe from mul­ti­ple top­ics"
        })
      }), "\n", _jsx(_components.li, {
        children: _jsx(_components.a, {
          href: "https://github.com/vert-x3/vertx-mqtt/pull/235",
          children: "MQTT man­ual ack"
        })
      }), "\n", _jsx(_components.li, {
        children: _jsx(_components.a, {
          href: "https://github.com/vert-x3/vertx-mail-client/issues/172",
          children: "mail [Issue-​172] Sup­port en­hanced sta­tus code"
        })
      }), "\n", _jsx(_components.li, {
        children: _jsx(_components.a, {
          href: "https://github.com/eclipse-vertx/vertx-json-schema/issues/43",
          children: "json schema 2020-12 Sup­port"
        })
      }), "\n", _jsx(_components.li, {
        children: _jsx(_components.a, {
          href: "https://github.com/eclipse-vertx/vertx-grpc/issues/21",
          children: "gRPC con­text stor­age based on Vert.x con­text"
        })
      }), "\n", _jsx(_components.li, {
        children: _jsx(_components.a, {
          href: "https://github.com/vert-x3/vertx-rabbitmq-client/pull/179",
          children: "Rab­bitMQ  add met­rics col­lec­tor con­fig­u­ra­tion sup­port"
        })
      }), "\n"]
    })]
  });
}
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.");
}


Blog

What's new in Vert.x 4.4

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Migrate from Vert.x 3 to Vert.x 4

Blog

What's new in Vert.x 4.4

Previous post

Migrate from Vert.x 3 to Vert.x 4

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