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Adding example for Pagination #354

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6 changes: 6 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -221,7 +221,13 @@ func main() {
fmt.Printf("Status after transition: %+v\n", issue.Fields.Status.Name)
}
```
### Get all the issues for JQL with Pagination
Jira API has limit on maxResults it can return. You may have a usecase where you need to get all issues for given JQL.
This example shows reference implementation of GetAllIssues function which does pagination on Jira API to get all the issues for given JQL

please look at examples/pagination/main.go
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```
### Call a not implemented API endpoint

Not all API endpoints of the Jira API are implemented into *go-jira*.
Expand Down
55 changes: 55 additions & 0 deletions examples/pagination/main.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,55 @@
package main

import (
"fmt"

jira "github.com/andygrunwald/go-jira"
)

// GetAllIssues will implement pagination of api and get all the issues.
// Jira API has limitation as to maxResults it can return at one time.
// You may have usecase where you need to get all the issues according to jql
// This is where this example comes in.
func GetAllIssues(client *jira.Client, searchString string) ([]jira.Issue, error) {
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last := 0
var issues []jira.Issue
for {
opt := &jira.SearchOptions{
MaxResults: 1000, // Max results can go upto 1000
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StartAt: last,
}

chunk, resp, err := client.Issue.Search(searchString, opt)
if err != nil {
return nil, err
}

total := resp.Total
if issues == nil {
issues = make([]jira.Issue, 0, total)
}
issues = append(issues, chunk...)
last = resp.StartAt + len(chunk)
if last >= total {
return issues, nil
}
}
return issues, nil
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}

func main() {
jiraClient, err := jira.NewClient(nil, "https://issues.apache.org/jira/")
if err != nil {
panic(err)
}

jql := "project = Mesos and type = Bug and Status NOT IN (Resolved)"
fmt.Printf("Usecase: Running a JQL query '%s'\n", jql)

issues, err := GetAllIssues(jiraClient, jql)
if err != nil {
panic(err)
}
fmt.Println(issues)

}