<eclipse-item v-for="i in 5" :key="i" ><button @click="myMethod(i)">Что-то там</button></eclipse-item>
<div class="element" @dblclick="sendPost"></div>
methods: {
async sendPost() {
const response = await fetch('url',{
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify({'Тело запроса'})
})
}
}