how-do-i-write-cobra-cli-command-output-to-a-json-file-in-golang.md

June 20, 2023 TIL - AI Prompt - Q&A: How Do I Write Cobra-Cli Command Output to a JSON File in Golang?

AI Prompt

Q&A

How Do I Write Cobra-Cli Command Output to a JSON File in Golang?

AI Response

To write cobra-cli command output to a JSON file in Golang, you can follow these steps:

1. Import the necessary packages:

import (
    "encoding/json"
    "io/ioutil"
)

2. Create a struct to represent the data you want to write to JSON. For example, if you have a command output with a single string field called "output", you can define a struct like this:

type OutputData struct {
    Output string `json:"output"`
}

3. After executing the cobra-cli command and obtaining the output, create an instance of the struct and assign the output value to it:

data := OutputData{
    Output: commandOutput,
}

4. Convert the struct to JSON format using json.Marshal():

jsonData, err := json.Marshal(data)
if err != nil {
    // Handle error
}

5. Write the JSON data to a file using ioutil.WriteFile():

err = ioutil.WriteFile("output.json", jsonData, 0644)
if err != nil {
    // Handle error
}

In this example, the JSON data will be written to a file named "output.json" with read and write permissions for the owner and read-only permissions for others.

That's it! After executing these steps, the cobra-cli command output will be written to the specified JSON file in Golang.

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