Structuring consecutive error handling as part of json parser | Discord Gophers | Page 1

mental hull Apr 11, 2024, 1:47 PM

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Hi everyone, I am trying to manually parse a json object..The problem is : with every function call to parse one field I receive a possible error as a return value.
Since I am parsing about 10 fields, I receive about 10 errors.
Is there a proper way to deal with this?

    jsonparser.ArrayEach(results, func(b []byte, dataType, jsonparser.ValueType, offset int, err error) {
        listName, err := jsonparser.GetString(b, "list_name")
        displayName, err := jsonparser.GetString(b, "display_name")
        listNameEncoded, err := jsonparser.GetString(b, "list_name_encoded")
        // other fields getting parsed
    })

ashen rover Apr 11, 2024, 1:52 PM

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if errors are fatal for the function, then if err != nil them

mental hull Apr 11, 2024, 1:53 PM

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ashen rover if errors are fatal for the function, then `if err != nil` them

Yes, but do I have to check for the error with every field parse inside this closure? doesn't that make it ugly?

ashen rover Apr 11, 2024, 1:55 PM

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you may try to use this: https://pkg.go.dev/errors#example-Join

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but i would write lots of if err != nil

#Structuring consecutive error handling as part of json parser