Rally API create ConversationPost - api

Question

with the following code I'm trying to create new conversation post for Capability. But it says
Cannot parse input stream due to I/O error as JSON document: Parse error: expected '{' but saw '￿' [ chars read = >>>￿<<< ]
function createPost(objId, post) {
objId = "313878829904";
post = "<p>MindMap:Hello from GAS.</p>"
var url = "https://rally1.rallydev.com/slm/webservice/v2.0/conversationpost/create";
var payload = {
"ConversationPost": {
"Artifact": "/portfolioitem/capability/" + objId,
"Text": post
}
}
var method = "POST";
var options = optionsPost_(method, payload);
var response = UrlFetchApp.fetch(url, optionsPost_(method, options));
var content = JSON.parse(response.getContentText());
content.CreateResult.Errors.forEach(error => Logger.log(error));
}
function optionsPost_(method, payload) {
var rallyApiKey = "";
if (rallyApiKey != "") {
PropertiesService.getScriptProperties().setProperty("RallyApiKey", rallyApiKey);
} else {
rallyApiKey = PropertiesService.getScriptProperties().getProperty("RallyApiKey");
}
if (rallyApiKey == null) return null;
return {
headers: { "ZSESSIONID": rallyApiKey },
payload: payload,
method: method
};
}
I can't spot any problem.
Could you please help?
Thank you!
Petr

Answer 1

I thought that from your error message, the payload might be required to be sent as JSON data. If my guessing is correct, how about the following modification?
Modified script:
From:
return {
headers: { "ZSESSIONID": rallyApiKey },
payload: payload,
method: method
};
To:
return {
headers: { "ZSESSIONID": rallyApiKey },
payload: JSON.stringify(payload),
method: method,
contentType: "application/json"
};
Note:
In this modification, it supposes that the values of payload and rallyApiKey are valid values for using the API. Please be careful this.
When above modification was not the dierct solution of your issue, can you provide the official document of API you want to use? By this, I would like to confirm it.
Reference:
fetch(url, params) of Class UrlFetchApp

Answer 2

Thanks for the fast response.
With the following
var payload = {"ConversationPost":{"Artifact": "/portfolioitem/capability/"+objId,"Text": post}};
var method = "POST";
var options = optionsPost_(method, payload);
and
var options={
headers: { "ZSESSIONID": rallyApiKey },
payload: payload,
method: method,
contentType:"application/json"
};
It gives me
Cannot parse input stream due to I/O error as JSON document: Parse error: expected '{' but saw 'h' [ chars read = >>>h<<< ]
If I change it to
var options={
headers: { "ZSESSIONID": rallyApiKey },
payload: JSON.stringify(payload),
method: method,
contentType:"application/json"
};
It gives me
Cannot parse input stream due to I/O error as JSON document: Parse error: expected '}' but saw ',' [ chars read = >>>{"headers":{"ZSESSIONID":"_ycHaCSd2QZSf8kbkQ0R1yhjohUvSzUYas0caApHt2A"},<<< ]
Only documentation I use is this:
https://rally1.rallydev.com/slm/doc/webservice/objectModel.sp#ConversationPost

Answer 3

I can't find any difference but this actually started working.
I believe the problem was caused by combination of mistakes. I removed one problem but perhaps add another one.
Here is a code which works.
function createPost(objId, post) {
objId = '313878829908';
post = "<p>MindMap:Hello from GAS.</p>"
var url = "https://rally1.rallydev.com/slm/webservice/v2.0/conversationpost/create";
var payload = {'ConversationPost':{'Artifact': '/portfolioitem/capability/'+objId,'Text': post}};
var method = 'POST';
//var options = optionsPost_(method, payload);
var response = UrlFetchApp.fetch(url, optionsPost_(method, payload));
var content = JSON.parse(response.getContentText());
content.CreateResult.Errors.forEach(error => Logger.log(error));
}
function optionsPost_(method, payload) {
var rallyApiKey = "";
if (rallyApiKey != "") {
PropertiesService.getScriptProperties().setProperty("RallyApiKey", rallyApiKey);
} else {
rallyApiKey = PropertiesService.getScriptProperties().getProperty("RallyApiKey");
}
if (rallyApiKey == null) return null;
var options={
'headers': {'ZSESSIONID': rallyApiKey },
'payload': JSON.stringify(payload),
'method': method,
'contentType':'application/json'
};
return options;
}
Thanks Tanaike for your help. I really appreciate it.