// HTTP handler for Flow Update
func (h *handler) handlePutFlowDef() error {
// derive flow def key from URL path
flowDefKey := h.PathVar("flowDefKey")
base.Logf("Flow Definition Key: ", flowDefKey)
if flowDefKey == "" {
return base.HTTPErrorf(http.StatusBadRequest, "Invalid Flow Def Key")
}
//
wf := db.NewWorkflowDef(flowDefKey)
// read JSON HTTP input into Object
_, err := h.readObject(&wf)
//base.Logf("Encoding Workflow Def ..%s",wf)
data, _ := json.Marshal(wf)
//base.Logf("Saving Workflow Def ...%s",wf)
_, err = h.db.PutDocRaw(flowDefKey, data)
//base.Logf("Done save...")
if err != nil {
return base.HTTPErrorf(http.StatusBadRequest, "Flow Definition Could not be updated") //TO DO: Need to relook at error
}
_, err = h.db.PutDocRaw(wf.Name, []byte(flowDefKey))
// this should be inside db trx TO DO
//_, err =writeLastVersion(h.db , wf.Name , )
//db.Body{"ok": true, "flowDefKey": flowDefKey}
h.writeJSONStatus(http.StatusCreated, &wf)
return nil
}
// HTTP handler for Flow query
func (h *handler) handleGetFlowDef() error {
// derive flow def key from URL path
flowDefKey := h.PathVar("flowDefKey")
base.Logf("Flow Definition Key: ", flowDefKey)
if flowDefKey == "" {
return base.HTTPErrorf(http.StatusBadRequest,
"Invalid Flow Def Key")
}
data, err := h.db.GetDocRaw(flowDefKey)
if err != nil {
return base.HTTPErrorf(http.StatusBadRequest,
"WF Definition Query Failed")
}
if data == nil {
return base.HTTPErrorf(http.StatusBadRequest,
"WF Definition Not Found. Check Flow Def Key again.")
}
wf := db.NewWorkflowDef(flowDefKey)
err = json.Unmarshal([]byte(data), &wf)
if err != nil {
return err
}
h.writeJSONStatus(http.StatusCreated, wf)
return nil
}
// HTTP handler for Flow creation
//TO DO: Need to handle validations. Last Version write for deriving correct Def Keys on update.
// need to remove flow def from URL
func (h *handler) handlePostFlowDef() error {
// derive flow name from URL path
flowDefName := h.PathVar("flowName")
base.Logf("...Flow Definition Name...", flowDefName)
//generate flow def key
flowDefKey, err := NextFlowDefKey(h.db, flowDefName)
base.Logf("Flow Def Key:%s", flowDefKey)
if flowDefKey == "" {
return base.HTTPErrorf(http.StatusBadRequest, "Could not generate Flow Def Key")
}
wf := db.NewWorkflowDef(flowDefKey)
_, err = h.readObject(wf)
if err != nil {
return base.HTTPErrorf(http.StatusBadRequest, "Could not map JSON to WfDef Object") //TO DO: Need to relook at error
}
//base.Logf("Encoding Workflow Def ..%s",wf)
data, _ := json.Marshal(wf)
//base.Logf("Saving Workflow Def ...%s",wf)
_, _ = h.db.PutDocRaw(flowDefKey, data)
//base.Logf("Done save...")
// this should be inside db trx TO DO
//_, err =writeLastVersion(h.db , wf.Name , )
h.writeJSONStatus(http.StatusCreated, db.Body{"ok": true, "flowDefKey": flowDefKey})
return nil
}