Why Am I Getting a \'Too Many Arguments\' Compiler Error for DataResponse Despite Providing All Necessary Parameters?

Compiler Error: Too Many Arguments for DataResponse Despite Providing All Required Parameters

In the code provided, an error arises when attempting to create an instance of the DataResponse struct and pass it as a parameter to the JSON function. The compiler reports that too many arguments were given, even though the necessary arguments have been provided.

The DataResponse struct is defined as:

<code class="go">type DataResponse struct {
    Status int         `json:"status"`
    Data   interface{} `json:"data"`
}</code>

It takes two parameters: Status of type int and Data of type interface{}.

In the GetUser function, an instance of DataResponse is created as follows:

<code class="go">resp := DataResponse(200, user)</code>

However, this syntax is incorrect. The correct way to initialize a struct using the curly brace syntax is:

<code class="go">resp := DataResponse{200, user}</code>

The curly braces indicate that we are constructing a new struct, and the values provided after each field name are assigned to the corresponding fields.

Once the resp variable is correctly initialized, it can be passed as a parameter to the JSON function:

<code class="go">JSON(rw, resp)</code>

This resolved the issue of too many arguments being provided to the DataResponse struct, allowing the program to properly construct and use the struct for JSON serialization.

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