(Go) curl with OAuth2 Client Credentials

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This example shows how to run a simple CURL command with an OAuth2 access token for authorization. We use CURL to retrieve a SharePoint site ID, and Chilkat automatically fetches the OAuth2 access token using the provided credentials.

Note: This example requires Chilkat v11.5.0 or greater.

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    success := false

    // This example will run the following curl command

    // curl -X GET "https://graph.microsoft.com/v1.0/sites/{{sharepoint_hostname}}:/sites/{{site_name}}" \
    //   -H "Authorization: Bearer ACCESS_TOKEN" \
    //   -H "Accept: application/json"

    sb := chilkat.NewStringBuilder()
    sb.AppendLn("curl -X GET \"https://graph.microsoft.com/v1.0/sites/{{sharepoint_hostname}}:/sites/{{site_name}}\" \\")
    sb.AppendLn("  -H \"Authorization: Bearer ACCESS_TOKEN\" \\")
    sb.AppendLn("  -H \"Accept: application/json\"")

    // Build the JSON that provides information for getting the OAuth2 access token using the OAuth2 client credentials flow.
    jsonOAuth2 := chilkat.NewJsonObject()

    jsonOAuth2.UpdateString("oauth2.client_id","CLIENT_ID")
    jsonOAuth2.UpdateString("oauth2.client_secret","CLIENT_SECRET")
    jsonOAuth2.UpdateString("oauth2.scope","https://graph.microsoft.com/.default")
    jsonOAuth2.UpdateString("oauth2.token_endpoint","https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token")

    httpCurl := chilkat.NewHttpCurl()

    // Provide the information for getting the OAuth2 access token from the token endpoint
    // Note: The Authorization header specified in the curl command will be ignored and replaced using the OAuth2 access token obtained at runtime from the token endpoint.
    httpCurl.SetAuth(jsonOAuth2)

    // The placeholders {{sharepoint_hostname}} and {{site_name}} represent variables that must be defined before execution.
    // When DoYourThing runs the curl command, it automatically substitutes these placeholders with their corresponding values.
    // Below are the values assigned to these variables:
    httpCurl.SetVar("sharepoint_hostname","example.sharepoint.com")
    httpCurl.SetVar("site_name","test")

    // Run the curl command.
    success = httpCurl.DoYourThing(*sb.GetAsString())
    if success == false {
        fmt.Println(httpCurl.LastErrorText())
        sb.DisposeStringBuilder()
        jsonOAuth2.DisposeJsonObject()
        httpCurl.DisposeHttpCurl()
        return
    }

    responseJson := chilkat.NewJsonObject()
    responseJson.SetEmitCompact(false)

    httpCurl.GetResponseJson(responseJson)

    statusCode := httpCurl.StatusCode()
    fmt.Println("response status code: ", statusCode)

    fmt.Println(*responseJson.Emit())

    sb.DisposeStringBuilder()
    jsonOAuth2.DisposeJsonObject()
    httpCurl.DisposeHttpCurl()
    responseJson.DisposeJsonObject()