[libeufin] branch master updated: respond 400 on invalid JSON (was 500)

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ms pushed a commit to branch master
in repository libeufin.

The following commit(s) were added to refs/heads/master by this push:
     new 5e17e49  respond 400 on invalid JSON (was 500)
5e17e49 is described below

commit 5e17e49c054d783775e6b7c24e75f9bfc84fabbe
Author: MS <ms@taler.net>
AuthorDate: Wed Jan 27 15:19:52 2021 +0100

    respond 400 on invalid JSON (was 500)
---
 nexus/src/main/kotlin/tech/libeufin/nexus/server/NexusServer.kt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/nexus/src/main/kotlin/tech/libeufin/nexus/server/NexusServer.kt 
b/nexus/src/main/kotlin/tech/libeufin/nexus/server/NexusServer.kt
index ef10f00..d8da5fb 100644
--- a/nexus/src/main/kotlin/tech/libeufin/nexus/server/NexusServer.kt
+++ b/nexus/src/main/kotlin/tech/libeufin/nexus/server/NexusServer.kt
@@ -22,6 +22,7 @@ package tech.libeufin.nexus.server
 import com.fasterxml.jackson.core.util.DefaultIndenter
 import com.fasterxml.jackson.core.util.DefaultPrettyPrinter
 import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.core.JsonParseException
 import com.fasterxml.jackson.databind.SerializationFeature
 import com.fasterxml.jackson.databind.exc.MismatchedInputException
 import com.fasterxml.jackson.module.kotlin.KotlinModule
@@ -137,7 +138,10 @@ suspend inline fun <reified T : Any> 
ApplicationCall.receiveJson(): T {
     } catch (e: MissingKotlinParameterException) {
         throw NexusError(HttpStatusCode.BadRequest, "Missing value for 
${e.pathReference}")
     } catch (e: MismatchedInputException) {
-        throw NexusError(HttpStatusCode.BadRequest, "Invalid value for 
${e.pathReference}")
+        // Note: POSTing "[]" gets here but e.pathReference is blank.
+        throw NexusError(HttpStatusCode.BadRequest, "Invalid value for 
'${e.pathReference}'")
+    } catch (e: JsonParseException) {
+        throw NexusError(HttpStatusCode.BadRequest, "Invalid JSON")
     }
 }
 

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