fix: make connectionId optional step model

packages/backend/src/graphql/mutations/create-step.ts

@@ -45,7 +45,6 @@ const createStepResolver = async (
     key: input.key,
     appKey: input.appKey,
     type: 'action',
-    connectionId: input.connection?.id,
     position: previousStep.position + 1,
   });
 

packages/backend/src/models/step.ts

@@ -13,7 +13,7 @@ class Step extends Base {
   key: string;
   appKey: string;
   type!: StepEnumType;
-  connectionId!: number;
+  connectionId: number;
   position: number;
   parameters: any;
 
@@ -29,7 +29,7 @@ class Step extends Base {
       key: { type: ['string', null] },
       appKey: { type: 'string', minLength: 1, maxLength: 255 },
       type: { type: 'string', enum: ['action', 'trigger'] },
-      connectionId: { type: 'integer' },
+      connectionId: { type: ['integer', null] },
       position: { type: 'integer' },
       parameters: { type: ['object', null] },
     },

packages/web/src/components/Editor/index.tsx

@@ -53,7 +53,6 @@ export default function Editor(props: EditorProps): React.ReactElement {
     const mutationInput: Record<string, unknown> = {
       id: step.id,
       key: step.key,
-      previousStepId: step.previousStepId,
       connection: {
         id: step.connection?.id
       },
@@ -71,7 +70,9 @@ export default function Editor(props: EditorProps): React.ReactElement {
 
   const addStep = React.useCallback((previousStepId) => {
     const mutationInput = {
-      previousStepId: previousStepId,
+      previousStep: {
+        id: previousStepId,
+      },
       flow: {
         id: flow.id,
       },