SAP CRM my task 6个roundtrip的原理讲解

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6组串行的roundtrips:

1. 取得my task application的navigation target：
   (Request-Line) GET /flp/navigation/semanticObject/Task/action/manageTasks/site/d4bfd59d-32a1-46ce-ba33-f6ccb7e152cc?
   formFactor=desktop&_=1433847650925 HTTP/1.1

2. 取js file, can be ignored once broswer cache is hit

3.a. 取css file, can be ignored once broswer cache is hit
3.b 取metadata, can be ignored once broswer cache is hit

4. 拿CSRF token：
   

5. 使用http post批量拿Technical details, UserPriorities and UserStatus.
   (Content)
   –batch_ac0d-3682-7af9
   Content-Type: application/http
   Content-Transfer-Encoding: binary
   GET TechnicalDetails HTTP/1.1
   Accept-Language: en
   Accept: application/json
   MaxDataServiceVersion: 2.0
   DataServiceVersion: 2.0
   –batch_ac0d-3682-7af9
   Content-Type: application/http
   Content-Transfer-Encoding: binary
   GET UserPriorities HTTP/1.1
   Accept-Language: en
   Accept: application/json
   MaxDataServiceVersion: 2.0
   DataServiceVersion: 2.0
   –batch_ac0d-3682-7af9
   Content-Type: application/http
   Content-Transfer-Encoding: binary
   GET UserStatuses HTTP/1.1
   Accept-Language: en
   Accept: application/json
   MaxDataServiceVersion: 2.0
   DataServiceVersion: 2.0

6. fetch tasks which is visible for current log on user in the list:

(Request-Line) GET /sap/opu/odata/sap/CRM_TASK/Tasks?
KaTeX parse error: Expected 'EOF', got '&' at position 7: skip=0&̲top=20& $orderby=CreatedAt$filter=MyTask%20eq%20true%20and%20Completed%20eq%20false&$inlinecount=allpages HTTP/1.1

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