How to pass method parameter into msg.payload

[{"id":"8b4876ad871c51f5","type":"http in","z":"e97abacb4c80db24","name":"","url":"/myview","method":"get","upload":false,"swaggerDoc":"","x":250,"y":140,"wires":[["cb80d322be19fc9c"]]},{"id":"cb80d322be19fc9c","type":"template","z":"e97abacb4c80db24","name":"input form","field":"form","fieldType":"msg","format":"handlebars","syntax":"mustache","template":"<bc-section title=\"Customise my view\" id=\"home-section\" has_grid=\"false\">\n \n<form>\n<div class=\"form-group\">\n     <div class=\"column--xs-12 column--md-3\" style=\"display: table;\">\n          <bc-input type=\"text\" label=\"Enter the menu items\" v-model=\"form.title\" placeholder=\"\" >\n          </bc-input>\n          <div class=\"input-group-btn\">\n            <div class=\"btn-toolbar\" v-if=\"!formiphelp\">\n              <bc-button @click=\"addEntry()\" icon=\"plus\" action=\"success\" v-model=\"form.addentry\" :is_enabled=\"formiphelp=null\"></bc-button>\n            </div>\n          </div>\n      </div>\n</div>\n\n<div class=\"table-responsive scrollbars\" v-if=\"form.items.length>0\">\n          <table class=\"table table-hover\">\n            <thead>\n              <tr>\n                <th>Entries</th>\n                <th>Delete</th>\n              </tr>\n            </thead>\n            <tbody>\n              <tr v-for=\"entry in form.items\">\n                <td>\n                  {%entry%}\n                </td>\n                <td>\n                  <bc-button @click=\"deleteEntry(entry)\" icon=\"minus\" action=\"success\"></bc-button>\n                </td>\n                \n              </tr>\n            </tbody>\n          </table>\n        </div>\n <div class=\"btn-link-toolbar\" v-if=\"form.items.length>0\">\n      <bc-button id=\"button\" @click=\"updateMyView()\" action=\"primary\" label=\"Submit\"\n        ></bc-button>\n      \n   </div>\n</form>\n\n</bc-section>\n\n        \n\n\n","output":"str","x":420,"y":140,"wires":[["bd97c05ea70ad3ec"]],"icon":"node-red/file.svg"},{"id":"bd97c05ea70ad3ec","type":"template","z":"e97abacb4c80db24","name":"javascript - vue.js","field":"vue","fieldType":"msg","format":"javascript","syntax":"mustache","template":"\nvar app = new Vue({\n\n    el: '#app',\n    delimiters: ['{%', '%}'],\n    data: {\n        user: \"{{{req.headers.x-insight-username}}}\",\n     \n        form: {\n            items:[],\n            title:[]\n           \n        },\n    },\n\n    mounted() {\n\n    },\n\n    created() {\n\n    },\n    watch: {\n       \n\n    },\n    filters: {\n     \n        \n        \n    },\n    computed: {\n\n       \n    },\n\n    methods: {\n        addEntry(){\n            this.form.items.push(this.form.title)\n            console.log(\"add entry\", this.form);\n             this.form.title=\"\"\n        },\n        deleteEntry(entry) {\n            console.log(\"delete address\", entry);\n            this.form.items = this.form.items.filter(e => e !== entry)\n            console.log(\"remaining entries\", this.form.items);\n\n        },\n        updateMyView(){\n            var obj = { \n                payload:{\n                   \"menuitem\":this.form.items\n                }\n               \n            };\n            console.log(\"updateMyView\", obj);\n        }\n    }\n\n});","x":510,"y":200,"wires":[["0b8b22b2f12c1c4e"]],"icon":"node-red/parser-json.svg"},{"id":"0b8b22b2f12c1c4e","type":"change","z":"e97abacb4c80db24","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"vue","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":680,"y":280,"wires":[["9a77e5bed91f61fe"]]},{"id":"9a77e5bed91f61fe","type":"debug","z":"e97abacb4c80db24","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":1010,"y":280,"wires":[]}]

Is there any way i could access highlighted variables in msg.payload.

(It may be easier if you actually pasted the message here.)

Don't forget to format it correctly. (3 x tilde key presses, then enter. Paste the message. Enter and lastly 3 x tilde key presses.)

When you do it you will see it look something like this:

your
message
here

(Ignore the blue your. Don't know why that happened)

Your image does not reflect your flow. It looks like you have changed the debug node in the flow you provided.

Given that, sure you can access the text by accessing msg.payload or after the change node, you can use msg.payload.

However in each case it is a string that you will have to parse to get to it.

Note: it is not code that is being executed

What is your goal?