Create entries in a LookupTable using Rest API

[Huddos]

Hi,

I'm trying to add entries to a project online lookuptable using REST. I'm able to create a project via similar commands, however I cannot get the body correct to "post" the additional entry(s) to the lookup table. 

The remote server returned an error: (400) Bad Request.

I think its the Value I cannot get correct, which may be related to SP.KeyValue.

REST Interface

Supported.

PS.LookupEntryCreationInformation

http://contoso.sharepoint.com/sites/pwa/api/ProjectServer/LookupTables('{tableid}')/Entries/Add

POST Example (not all fields may be required)

body = {
	'parameters': {
		'Description':'value', 
		'Id':'value', 
		'ParentId':'value', 
		'SortIndex':'value', 
		'Value':'value'		
	}
}

Thanks

[#2]

Update Any Ideas???, changed URL to
http://contoso.sharepoint.com/sites/pwa/api/ProjectServer/LookupTables('{tableid}')/Entries

{
"Description": "TEST REST DESC",
"Id": "b5379034-aa95-4a05-8dd4-cfed03614d99",
"SortIndex": "0",
"Value": {
"DurationValue": null,
"NumberValue": 0,
"TextValue": "TEST REST"
}
}

Content-Type - application/json;odata=verbose
An entry without a type name was found, but no expected type was specified. To allow entries without type information, the expected type must also be specified when the model is specified.

or

Content-Type - application/json

The property 'Value' does not exist on type 'PS.LookupEntry'. Make sure to only use property names that are defined by the type.

[#3 · Accepted solution]

Worked it out in end, started off very simple body, the journey took me down the long and frustrating path to complex body with content-type using application/json;odata=verbose. Nailed it today with the below simple body and content-type just application/json.

For anyone wanting to add an entry to lookup table within project online the below if the URL and body required ensuring the GUID is unique for each entry.

http://contoso.sharepoint.com/sites/pwa/api/ProjectServer/LookupTables('{tableid}')/Entries/Add

Powershell

$lookupguid = [Guid]::NewGuid()

$body = "{ 'parameters':
{'Description': 'TEST REST DESC',
'Id': '$lookupguid',
'SortIndex': '0',
'Value': {
'DurationValue': null,
'NumberValue': '0',
'TextValue': 'TEST REST'
}}
}"