Question: Is there a JSON code example to create a new ISSUE out of a TEMPLATE copy and fill it with parameters

[WolfgangVetter]

Summary

Question: Is there a JSON code example to create a new ISSUE out of a TEMPLATE copy and fill it with parameters

Description

1. in Javascript we give in some parameters for the new Issue

2. Javascript starts a Groovy script like:
   ix.ajax().requestAppGroovy("RedmineIssueFromTemplate.groovy",
   {
   dataType: "json",
   data:
   {
   // Parameters ...

    },
    success: function (data)
    {
    }
   

   }
   and sends the parameters to Groovy

3. in Groovy we create a JSON-String to send it to Redmine
   Example is for a new Issue only:
   StringBuilder json = new StringBuilder()
   json.append("{")
   json.append(""issue": {")
   json.append(""project_id":729,");
   // json.append(""subject":"WV TEST Issue",");
   json.append(""subject":"")
   json.append(sThema)
   json.append("",")
   json.append(""description":"")
   json.append(sBeschreibung)
   json.append("",")
   json.append(""tracker_id":")
   json.append(iTrackerID + ",")
   json.append(""priority_id":")
   json.append(iPrioID + ",")
   json.append(""assigned_to_id":")
   json.append(iZugewiesenAnID + ",")
   json.append(""start_date":"")
   json.append(sdtBeginn)
   json.append("",")
   json.append(""due_date":"")
   json.append(sdtAbgabe)
   json.append("",")
   json.append(""done_ratio":")
   json.append(iProzent + "")
   // ------- Ende
   json.append("}}")

4. set the URL
   def sURL = "http://tickets. ..../redmine/issues.json?key=abcdefghijklmnopqrstuvwyxz11223344556677"

5. and send the POST to Redmine
   // Create the POST object and add the parameters
   try {
   HttpPost httpPost = new HttpPost(sURL);
   // send a JSON data
   httpPost.setEntity(new StringEntity(json.toString()));

    // Header ?
    httpPost.setHeader("Accept", "application/json");
    httpPost.setHeader("Content-type", "application/json; charset=UTF-8");
   
    try (CloseableHttpClient httpClient = HttpClients.createDefault();
    	CloseableHttpResponse response = httpClient.execute(httpPost)) 
    {
   
    	result = EntityUtils.toString(response.getEntity());
    	// our Response
    	sResponse = result
    }
   

   }
   ...

6. now we need an example to create a new issue out of a given template f.e.: #10Template1 or #11Template2 ...,
   fill the new issue out with given parameters and give back the new issue number #xxxxx
   you write: "Support simple REST API with json format. ...."

Environment

Redmine version: 4.0.5.stable
Installed plugins: redmine_issue_templates 0.3.7, but update ASAP to 1.1.0
OS Platform ist Windows 10
Database is MSSQL
Intrexx is our development environment for Javascript Groovy ...

Expected Results

new issue number #xxxxx

Actual Results

---

Workaround

---

[github-actions]

Thank you for contributing to Redmine Issue Templates plugin!' first issue

[WolfgangVetter]

Is there any DOCUMENTATION to use an existing template as a new issue ?