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Better error handling in server

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This commit is contained in:
Felix Krause 2016-02-18 22:01:13 +01:00
parent 7eca93f988
commit b2707f99d7
1 changed files with 20 additions and 31 deletions
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51
server/server.nim
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@ -20,42 +20,31 @@ routes:
headers["Pragma"] = "no-cache" headers["Pragma"] = "no-cache"
headers["Cache-Control"] = "no-cache" headers["Cache-Control"] = "no-cache"
headers["Expires"] = "0" headers["Expires"] = "0"
case @"style" try:
of "minimal": style = psMinimal case @"style"
of "canonical": style = psCanonical of "minimal": style = psMinimal
of "default": style = psDefault of "canonical": style = psCanonical
of "json": style = psJson of "default": style = psDefault
of "block": style = psBlockOnly of "json": style = psJson
of "tokens": of "block": style = psBlockOnly
var of "tokens":
output = "" var
parser = newYamlParser() output = ""
events = parser.parse(newStringStream(@"input")) parser = newYamlParser()
try: events = parser.parse(newStringStream(@"input"))
for event in events: for event in events:
output.add($event & "\n") output.add($event & "\n")
resultNode["code"] = %0 resultNode["code"] = %0
resultNode["output"] = %output resultNode["output"] = %output
resp resultNode.pretty, "application/json" resp resultNode.pretty, "application/json"
tokens = true tokens = true
except YamlParserError: if not tokens:
let e = (ref YamlParserError)(getCurrentException()) var output = newStringStream()
resultNode["code"] = %1 transform(newStringStream(@"input"), output, style)
resultNode["line"] = %e.line resultNode["code"] = %0
resultNode["column"] = %e.column resultNode["output"] = %output.data
resultNode["message"] = %e.msg
resultNode["detail"] = %e.lineContent
resp resultNode.pretty, "application/json" resp resultNode.pretty, "application/json"
if not tokens: except YamlParserError:
echo "outputting YAML"
var
output = newStringStream()
try:
transform(newStringStream(@"input"), output, style)
resultNode["code"] = %0
resultNode["output"] = %output.data
resp resultNode.pretty, "application/json"
except YamlParserError:
let e = (ref YamlParserError)(getCurrentException()) let e = (ref YamlParserError)(getCurrentException())
resultNode["code"] = %1 resultNode["code"] = %1
resultNode["line"] = %e.line resultNode["line"] = %e.line
@ -63,13 +52,13 @@ routes:
resultNode["message"] = %e.msg resultNode["message"] = %e.msg
resultNode["detail"] = %e.lineContent resultNode["detail"] = %e.lineContent
resp resultNode.pretty, "application/json" resp resultNode.pretty, "application/json"
except YamlPresenterJsonError: except YamlPresenterJsonError:
let e = getCurrentException() let e = getCurrentException()
resultNode["code"] = %2 resultNode["code"] = %2
resultNode["message"] = %e.msg resultNode["message"] = %e.msg
headers["Content-Type"] = "application/json" headers["Content-Type"] = "application/json"
resp resultNode.pretty, "application/json" resp resultNode.pretty, "application/json"
except: except:
let e = getCurrentException() let e = getCurrentException()
let msg = "Name: " & $e.name & "\nMessage: " & e.msg & let msg = "Name: " & $e.name & "\nMessage: " & e.msg &
"\nTrace:\n" & e.getStackTrace "\nTrace:\n" & e.getStackTrace