Question & Answer
Question
Why does a REST POST call made to the STOP workflow Node returns with "system#invalidfetch" error and statusCode 400?
Steps followed to get this error are as follows:
STEPS TO REPRODUCE:
(A) Pre-reqs: Prepare a workflow, then validate, enable, and activate it.
-Process Name: SR_WFLOW12; Object: SR; Save; Notice, 1 Start and 1 Stop node is already present
-Drag 1 Condition node; 1 Stop Node; 2 Task Nodes; 2 Input Nodes; 2 Interaction Nodes to the workflow designer canvas
-Process Name: SR_WFLOW12; Object: SR; Save; Notice, 1 Start and 1 Stop node is already present
-Drag 1 Condition node; 1 Stop Node; 2 Task Nodes; 2 Input Nodes; 2 Interaction Nodes to the workflow designer canvas
-Perform following actions on each node:
1) START NODE
-Positive Line to a Condition
-Positive Line to a Condition
2) Condition Node
-Title-> REPORTED BY PRIORITY =4; Description-> REPORTED BY PRIORITY =4
-Expression-> :reportedpriority=4
-Positive Line to Task->TASK 5
-Negative Line to STOP1
-Title-> REPORTED BY PRIORITY =4; Description-> REPORTED BY PRIORITY =4
-Expression-> :reportedpriority=4
-Positive Line to Task->TASK 5
-Negative Line to STOP1
3) STOPNODE
-Title->STOP1
-Title->STOP1
4) Task Node
-Title-> TASK 5; Description-> TASK 5
-Application-> SR
-Under Assignments-> RoleID-> ORIGINATOR
-Perform Accept Action-> When any assignment is accepted
-Positive Line to Task->INPUT 7
-Negative Line to INTERACTION 9
-Title-> TASK 5; Description-> TASK 5
-Application-> SR
-Under Assignments-> RoleID-> ORIGINATOR
-Perform Accept Action-> When any assignment is accepted
-Positive Line to Task->INPUT 7
-Negative Line to INTERACTION 9
5) Input Node
-Title-> INPUT 7; Description-> INPUT 7
-Positive Line to INPUT 8
-Positive Line to INTERACTION 9
-Title-> INPUT 7; Description-> INPUT 7
-Positive Line to INPUT 8
-Positive Line to INTERACTION 9
6) Interaction Node
-Title-> INTERACTION 9
-Directions Title-> Primary interaction; Directions Body: Primary interaction
-Positive Line to INTERACTION 10
7) Interaction Node
-Title-> INTERACTION 10
-Directions Title-> Secondary interaction; Directions Body: Secondary interaction
-Positive Line to Task Node-TASK 6
8) Input Node
-Title-> INPUT 8; Description-> INPUT 8
-Positive Line to Task Node-TASK 6
-Positive Line to Stop Node - STOP2
-Title-> INPUT 8; Description-> INPUT 8
-Positive Line to Task Node-TASK 6
-Positive Line to Stop Node - STOP2
9) Task Node
-Title-> TASK 6; Description-> TASK 6
-Application-> SR
-Under Assignments-> RoleID-> ORIGINATOR
-Perform Accept Action-> When any assignment is accepted
-Positive Line to Stop Node - STOP2
10) From More Actions; Add workflow to Application: SR
11) Create a Service Request; TEST1; Priority: 4; Take Ownership; Route the workflow to the TASK 5 node
(B) Perform REST Queries to see the issue.
(1) Make a REST GET Request
GET URL
http://localhost:9080/maximo/oslc/os/mxapiwfassignment?_lid=maxadmin&_lpwd=maxadmin&oslc.select=*&lean=1&oslc.where=ownertable="SR"&oslc.where=owner="maxadmin"
RESPONSE
Observe the workflow is at the TASK 5 node and it shows in the response 1 positive line to INPUT 7 Node and 1 negative line to INTERACTION 9 Node along with href link
{
"member": [
{
"wfaction_collectionref": "http://localhost/maximo/oslc/os/mxapiwfassignment/_NjkvNS9TUl9XRkxPVzEyLzEvMjg0/actions",
"keeporigassgn": false,
"wfassignmentid": 205,
"roleid": "ORIGINATOR",
"separategroups": true,
"description": "TASK 5",
"startdate": "2021-03-19T04:06:58-04:00",
"assignstatus": "ACTIVE",
"calendarbased": false,
"assignstatus_description": null,
"_rowstamp": "6176496",
"wfaction": [
{
"wfactionid": 766,
"_rowstamp": "6174926",
"ownernodeid": 5,
"localref": "http://localhost/maximo/oslc/os/mxapiwfassignment/_NjkvNS9TUl9XRkxPVzEyLzEvMjg0/actions/0-766",
"membernodeid": 9,
"instruction": "INTERACTION 9",
"actionid": 6,
"href": "http://childkey#V0ZBU1NJR05NRU5UL1dGQUNUSU9OLzYvU1JfV0ZMT1cxMi8x",
"ispositive": false
},
{
"wfactionid": 765,
"_rowstamp": "6174925",
"ownernodeid": 5,
"localref": "http://localhost/maximo/oslc/os/mxapiwfassignment/_NjkvNS9TUl9XRkxPVzEyLzEvMjg0/actions/1-765",
"membernodeid": 7,
"instruction": "INPUT 7",
"actionid": 5,
"href": "http://childkey#V0ZBU1NJR05NRU5UL1dGQUNUSU9OLzUvU1JfV0ZMT1cxMi8x",
"ispositive": true
}
],
"href": "http://localhost/maximo/oslc/os/mxapiwfassignment/_NjkvNS9TUl9XRkxPVzEyLzEvMjg0",
"nodeid": 5,
"wfid": 284,
"app": "SR",
"origperson": "MAXADMIN",
"processname": "SR_WFLOW12",
"ownerid": 429,
"ownertable": "SR",
"templateid": "WFASSIGN",
"timelimit": 0,
"duedate": "2021-03-19T04:06:58-04:00",
"assigncode": "MAXADMIN",
"emailnotification": false,
"assignid": 69,
"processrev": 1
}
],
"href": "http://localhost/maximo/oslc/os/mxapiwfassignment",
"responseInfo": {
"href": "http://localhost/maximo/oslc/os/mxapiwfassignment?_lid=maxadmin&_lpwd=maxadmin&oslc.select=*&lean=1&oslc.where=ownertable=%22SR%22&oslc.where=owner=%22maxadmin%22"
}
}
(2) Perform a POST call using the href link with action=wsmethod:completeAssignment
POST
http://localhost:9080/maximo/oslc/os/mxapiwfassignment/_NjkvNS9TUl9XRkxPVzEyLzEvMjg0?action=wsmethod:completeAssignment
HEADERS
x-method-override: PATCH
BODY
{
"memo":"some memo",
"accepted":true
}
RESPONSE
Observe there are 2 actions shown here in the Response body, Both positive. 1 for INPUT 8 and another for INTERACTION 9.
And the response headers contain some parameters along with a url shown in the parameter called Location.
RESPONSE BODY
{
"nodetype": "INPUT",
"internalnodetype": "WFINPUT",
"member": [
{
"wfactionid": 767,
"sequence": 1,
"ownernodeid": 7,
"membernodeid": 8,
"instruction": "INPUT 8",
"processname": "SR_WFLOW12",
"actionid": 7,
"href": "null/0-767",
"ispositive": true,
"processrev": 1
},
{
"wfactionid": 768,
"sequence": 2,
"ownernodeid": 7,
"membernodeid": 9,
"instruction": "INTERACTION 9",
"processname": "SR_WFLOW12",
"actionid": 8,
"href": "null/1-768",
"ispositive": true,
"processrev": 1
}
],
"responseInfo": {
"href": "http://localhost/maximo/oslc/os/mxapiwfassignment/_NjkvNS9TUl9XRkxPVzEyLzEvMjg0?action=wsmethod:completeAssignment",
"totalCount": 2
}
}
RESPONSE HEADERS
cache-control - >no-cache
content-language - >en-US
content-length - >595
content-type - >application/json
date - >Fri, 19 Mar 2021 08:10:39 GMT
location - >http://localhost/maximo/oslc/wf/mxapiwfassignment_71328
x-content-type-options - >nosniff
x-frame-options - >SAMEORIGIN
x-xss-protection - >1
(3) Perform a POST call using the LOCATION link returned earlier for the actionid: 7 which is for INPUT 8 Node
POST
http://localhost:9080/maximo/oslc/wf/mxapiwfassignment_71328
HEADERS
x-method-override: PATCH
BODY
{
"actionid": 7,
"memo":"To INPUT 8 NODE"
}
RESPONSE BODY
{
"nodetype": "INPUT",
"internalnodetype": "WFINPUT",
"member": [
{
"wfactionid": 772,
"sequence": 1,
"ownernodeid": 8,
"membernodeid": 6,
"instruction": "TASK 6",
"processname": "SR_WFLOW12",
"actionid": 12,
"href": "null/0-772",
"ispositive": true,
"processrev": 1
},
{
"wfactionid": 773,
"sequence": 2,
"ownernodeid": 8,
"membernodeid": 2,
"instruction": "STOP 2",
"processname": "SR_WFLOW12",
"actionid": 13,
"href": "null/1-773",
"ispositive": true,
"processrev": 1
}
],
"responseInfo": {
"href": "http://localhost/maximo/oslc/wf/mxapiwfassignment_71328",
"totalCount": 2
}
}
RESPONSE HEADERS
cache-control - >no-cache
content-language - >en-US
content-length - >529
content-type - >application/json
date - >Fri, 19 Mar 2021 08:17:50 GMT
location - >http://localhost/maximo/oslc/wf/mxapiwfassignment_71328
x-content-type-options - >nosniff
x-frame-options - >SAMEORIGIN
x-xss-protection - >1
(4) Perform a POST call using the LOCATION link returned earlier for the actionid: 13 which is for STOP 2 node.
POST
http://localhost:9080/maximo/oslc/wf/mxapiwfassignment_71328
HEADERS
x-method-override: PATCH
BODY
{
"actionid": 13,
"memo":"FROM NPUT 8 NODE to STOP 2 NODE"
}
RESPONSE BODY
{
"Error": {
"reasonCode": null,
"message": "system#invalidfetch",
"statusCode": "400"
}
}
RESULT: A message: "system#invalidfetch" with statusCode: "400" is received.
EXPECTED RESULT: REST POST call performed for the STOP Node should complete succesfully without any error.
Cause
An APAR is created to fix the code addressing this issue.
APAR Number: IJ33585
[{"Type":"MASTER","Line of Business":{"code":"LOB59","label":"Sustainability Software"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSLKT6","label":"IBM Maximo Asset Management"},"ARM Category":[{"code":"a8m0z000000GnTwAAK","label":"Workflow->General"}],"ARM Case Number":"TS005543421","Platform":[{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"7.6.0;7.6.1"}]
Product Synonym
Maximo Asset Management
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Document Information
Modified date:
05 July 2021
UID
ibm16469435