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Comments on How do I properly format a String for parsing with a com.google.gson.JsonParser

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How do I properly format a String for parsing with a com.google.gson.JsonParser

+2
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I am trying to check a JSON array for a certain element. However, when I try to instantiate a JsonElement to search the list for:

JsonElement builderElement = JsonParser.parseString(
    "{\"discordId\":" + event.getAuthor().getIdLong() +
    ",\"discordTag\":" + event.getAuthor().getAsTag() + 
    ",\"role\":\"builder\"}");

The resulting error is

java.io.EOFException: End of input at line 1 column 77 path $.discordTag

event.getAuthor().getIdLong() is retrieving the discord message authors ID and event.getAuthor().getAsTag() is retrieving the discord message author in the form of username#0000.

A snippet of the JSON array I am searching is as follows:

{"discordId":"255499044925865984","discordTag":"Joker#2234","role":"builder"},
{"discordId":"219899183966978048","discordTag":"Dippy#7607","role":"builder"},
{"discordId":"261959402012147712","discordTag":"TrueMags#0618","role":"builder"},
{"discordId":"399011983845883914","discordTag":"DealySon#0584","role":"builder"},
{"discordId":"97867804463599616","discordTag":"EpicMisterB#1337","role":"co-leader"},

As far as I can tell, it is an issue with formatting of the string I am parsing in builderElement.

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1 comment thread

If you add a line to print out the string you are passing to `JsonParser.parseString`, I believe the ... (2 comments)
If you add a line to print out the string you are passing to `JsonParser.parseString`, I believe the ...
Derek Elkins‭ wrote over 2 years ago

If you add a line to print out the string you are passing to JsonParser.parseString, I believe the problem will become clear. That said, at a higher level it seems round-about to produce a string of JSON only to parse it back into an object again. There's surely a way to build a JsonElement directly and avoid this parsing.

cuzzo‭ wrote over 2 years ago

Doh! I was trying to print out builderEmelent.toString() but it didn't print because it couldn't be instantiated! Thinking about it, it may be better to iterate through the list, grab the 'discordId' field and compare it to the authors ID. Thank you for the comment.