package main

import (
    "fmt"
    "strings"

    "github.com/json-iterator/go"
)

func main() {
    in := `{"a": 1}{"a":2}`

    reader := strings.NewReader(in)

    iter := jsoniter.ConfigFastest.BorrowIterator(nil)
    defer jsoniter.ConfigFastest.ReturnIterator(iter)

    iter.Reset(reader)

    for {
        if iter.WhatIsNext() == 0 {
            break
        }
        var out map[string]int

        iter.ReadVal(&out)

        fmt.Println(out)
    }
}