.net - How to deserialize comments from JIRA webhook correctly -

i deserializing webhook url jira having trouble deserializing comments part of issue in controller in mvc application.

currently in deserializing correctly except comments part of json payload.

this view of comments looks in json payload:

'comments':[ {'id':'71980','displayname':'ciaran','active':true},'created':'2015-06-10t09:30:07.983+0100','updated':'2015-06-10t09:30:07.983+0100'}, {'id':'72026','displayname':'ciaran ','active':true},'created':'2015-06-10t14:50:34.253+0100','updated':'2015-06-10t14:50:34.253+0100'}] 

using json2csharp , copying classes needed , comments looked this:

then classes this:

public class rootobject      public property expand string      public property id string      public property self string      public property key string      public property fields fields end class       public class fields      public property comment comment end class  public class comment      public property startat integer      public property maxresults integer      public property total integer      public property comments list(of comment2) end class  public class comment2      public property body string      public property created date      public property updated date end class 

i unsure how deserialize tried doing this:

dim reader system.io.streamreader = new system.io.streamreader(httpcontext.request.inputstream) dim rawsendgridjson string = reader.readtoend() dim issue rootobject = jsonconvert.deserializeobject(of rootobject)(rawsendgridjson) 

this works else apart comments , getting error message:

cannot deserialize current json array (e.g. [1,2,3]) type 'class.comment1' because type requires json object(e.g.) {"name":"value"}) deserialize correctly.

how should deserialize correctly?

the rootobject json looks :

"expand":"renderedfields,names,schema,transitions,operations,editmeta,changelog, "id": "41948", "self": "http://jira:8080/rest/api/latest/issue/41948", "key": "op-155", "fields": {         "comment": {         "startat": 0,         "maxresults": 9,         "total": 9,         "comments": []                    }            } 

i can id or key rootobject in "fields" section getting comments give me error. can information "fields" section e.g can display summary or created.

the problem number of comments e.g there 9 , way deserializing not correct handle this.

---

try this link problem comment, contains json paylaod verified

the json provided in commentary link not match classes in question. instance, rootobject class not match container @ all, instead issue class except "expand" property:

{ "timestamp": 1437140952183, "webhookevent": "jira:issue_updated", "user": {     ...   ,     "displayname": "ciaran",     "active": true,     "timezone": "europe/london" }, "issue": {...  }, "comment": {... }... 

based on jsfiddle json, root (which can renamed) should defined as:

public class ciaranobj     public property timestamp long     public property webhookevent string     public property user actor     public property issue issue     public property comment commentitem end class 

important note: jsfiddle sample provided may or may not complete. there number of undefined types in various classes. fields instance has several types nulls resulting in:

property customfield_10070 object 

object may not best type when data present. likewise, timetracking wholly undefined.

apparently, not interested in comments. if true, parse json. if @ formatted json in jsonlint.com, can see relationships. so, comments:

dim jstr =  ' whereever  ' extract comments reduce typing , typos dim comments = myj("issue")("fields")("comment") ' comment count dim commentcount = convert.toint32(comments("maxresults")) 'print them n int32 = 0 commentcount - 1     console.writeline("id: {0}, created: {1} upd author: {2}",                       comments("comments")(n)("id").tostring,                       comments("comments")(n)("created").tostring,                       comments("comments")(n)("author")("displayname").tostring) next 

output:

id: 72430, created: 6/16/2015 8:48:52 upd author: ciaran id: 72431, created: 6/16/2015 9:02:16 upd author: ciaran id: 72661, created: 6/18/2015 9:58:12 upd author: ciaran

as may have noticed in formatted jsonlint display, comments buried deeper root. perhaps there other processing similar above, isnt mentioned.

to deserialize object, need use classes. can drop properties not care about, cant migrate properties 1 class another. using of robots -- json2csharp, jsonutils.com¹ creates vb classes or visual studio 2012 or later (edit - paste special - paste json classes -- auto-create classes, may want take moment "normalize" classes.

• the user class repeats on , on user, assignee, creator etc. reduced 1 type (class) named actor.
• avatarurls repeats on , on avatarurls1 etc. need 1 type.
• there comment type in fields
• comment includes collection of comment items, renamed these commentitem
• commentitem used in root object, robots call comment2 show in first json snippet
• the comments property can defined array or list<t> shown

keep in mind, can remove property dont care (but cannot move or rename them). did:

public class ciaranobj     public property timestamp long     public property webhookevent string     public property user actor     public property issue issue     public property comment commentitem end class  public class actor     public property self string     public property name string     public property key string     public property emailaddress string     public property avatarurls avatarurls     public property displayname string     public property active boolean     public property timezone string end class  public class avatarurls     ' provide property mapping illgal names     <jsonproperty("48x48")>     public property _48x48 string     <jsonproperty("24x24")>     public property _24x24 string     <jsonproperty("16x16")>     public property _16x16 string     <jsonproperty("32x32")>     public property _32x32 string end class  public class issue     public property id string     public property self string     public property key string     public property fields fields end class  public class fields     'public property issuetype issuetype         ' not shown     ' ...     public property summary string     public property creator actor      public property reporter actor     public property progress progress        ' not shown     public property comment comment end class  public class comment     public property startat integer     public property maxresults integer     public property total integer     public property comments commentitem()     ' or:     'public property comments list(of commentitem) end class  public class commentitem     public property self string     public property id string     public property author actor     public property body string     public property updateauthor actor     public property created datetime     public property updated datetime end class 

whew! now, can deserialize ciaranobj object:

dim jstr =  ...from whereever dim complexj = jsonconvert.deserializeobject(of ciaranobj)(jstr)  ' reduce typing dim c comment = complexj.issue.fields.comment  n int32 = 0 c.maxresults - 1     console.writeline("id: {0}, created: {1} upd author: {2}",                       c.comments(n).id.tostring,                       c.comments(n).created.tostring,                       c.comments(n).author.displayname) next 

it prints same info.

again, works fine on jsfiddle provided in comments. has been sanitized , in course of that, other changes may have been wrought (the missing "expand" instance).

¹ jsonutils.com pretty cool in can create vb classes, runs out of steam on json: classes generated incomplete. apparently due size.