Hands-On Full Stack Development with Go

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The method that we'll create in this section, handles a POST request; here, we expect to receive a JSON document from the client that we need to decode before we can process the request. Let's assume that our client sends a JSON document that represents the customer. The code to decode the JSON object will look like the following code block:

func (h *Handler) SignIn(c *gin.Context) {  if h.db == nil {    return  }  var customer models.Customer  err := c.ShouldBindJSON(&customer)}

The c.ShouldBindJSON(...) method is provided to us by the *gin.Context type. Its main purpose is to extract JSON documents from our HTTP request body, and then parse it to the provided argument. In our case, the provided argument was a ...