Golang的Gin框架在发布请求中传递了一系列json对象时出现问题

Question

import "github.com/gin-gonic/gin"

func Receive(c *gin.Context) {
  // Gets JSON ecnoded data
  rawData, err := c.GetRawData()
  if err != nil {
      return nil, err
  }

  logger.Info("Raw data received - ", rawData)
}

This code snippet works when I pass a Json object {"key":"value"} but gives an error - "unexpected end of JSON input" when I pass an array like - [{"key":"val"},{"key": "val"}] as the input.

Any help on this would be appreciated.

Answer 1

All GetRawData() does is return stream data, so that shouldn't cause your error:

// GetRawData return stream data.
func (c *Context) GetRawData() ([]byte, error) {
    return ioutil.ReadAll(c.Request.Body)
}

However, try using BindJSON and deserialise into a struct. See for example this question.

type List struct {
    Messages []string `key:"required"`
}

func Receive(c *gin.Context) {
    data := new(List)
    err := c.BindJSON(data)
    if err != nil {
        return nil, err
    }
}