[React] Use typed paths (#5686)

* Use typed paths for all tables

* Refactor usage of useInstance hook

* Refactor URLs for existing forms

* More URL fixes

* Further URL fixes

src/frontend/src/components/forms/ApiForm.tsx

@@ -17,6 +17,7 @@ import { useState } from 'react';
 import { api } from '../../App';
 import { constructFormUrl } from '../../functions/forms';
 import { invalidResponse } from '../../functions/notifications';
+import { ApiPaths } from '../../states/ApiState';
 import {
   ApiFormField,
   ApiFormFieldSet,
@@ -45,8 +46,8 @@ import {
  */
 export interface ApiFormProps {
   name: string;
-  url: string;
-  pk?: number;
+  url: ApiPaths;
+  pk?: number | string;
   title: string;
   fields?: ApiFormFieldSet;
   cancelText?: string;

src/frontend/src/components/forms/fields/ApiFormField.tsx

@@ -41,9 +41,8 @@ export type ApiFormChangeCallback = {
  * @param value : The value of the field
  * @param default : The default value of the field
  * @param icon : An icon to display next to the field
- * @param fieldType : The type of field to render
+ * @param field_type : The type of field to render
  * @param api_url : The API endpoint to fetch data from (for related fields)
- * @param read_only : Whether the field is read-only
  * @param model : The model to use for related fields
  * @param filters : Optional API filters to apply to related fields
  * @param required : Whether the field is required
@@ -61,9 +60,8 @@ export type ApiFormFieldType = {
   value?: any;
   default?: any;
   icon?: ReactNode;
-  fieldType?: string;
+  field_type?: string;
   api_url?: string;
-  read_only?: boolean;
   model?: ModelType;
   filters?: any;
   required?: boolean;
@@ -99,8 +97,6 @@ export function constructField({
     ...field
   };
 
-  def.disabled = def.disabled || def.read_only;
-
   // Retrieve the latest value from the form
   let value = form.values[fieldName];
 
@@ -109,7 +105,7 @@ export function constructField({
   }
 
   // Change value to a date object if required
-  switch (def.fieldType) {
+  switch (def.field_type) {
     case 'date':
       if (def.value) {
         def.value = new Date(def.value);
@@ -192,9 +188,23 @@ export function ApiFormField({
 
   const value: any = useMemo(() => form.values[fieldName], [form.values]);
 
+  // Coerce the value to a numerical value
+  const numericalValue: number | undefined = useMemo(() => {
+    switch (definition.field_type) {
+      case 'integer':
+        return parseInt(value);
+      case 'decimal':
+      case 'float':
+      case 'number':
+        return parseFloat(value);
+      default:
+        return undefined;
+    }
+  }, [value]);
+
   // Construct the individual field
   function buildField() {
-    switch (definition.fieldType) {
+    switch (definition.field_type) {
       case 'related field':
         return (
           <RelatedModelField
@@ -213,8 +223,8 @@ export function ApiFormField({
           <TextInput
             {...definition}
             id={fieldId}
-            type={definition.fieldType}
-            value={value}
+            type={definition.field_type}
+            value={value || ''}
             error={error}
             radius="sm"
             onChange={(event) => onChange(event.currentTarget.value)}
@@ -260,7 +270,7 @@ export function ApiFormField({
             {...definition}
             radius="sm"
             id={fieldId}
-            value={value}
+            value={numericalValue}
             error={error}
             onChange={(value: number) => onChange(value)}
           />
@@ -289,7 +299,8 @@ export function ApiFormField({
       default:
         return (
           <Alert color="red" title={t`Error`}>
-            Invalid field type for field '{fieldName}': '{definition.fieldType}'
+            Invalid field type for field '{fieldName}': '{definition.field_type}
+            '
           </Alert>
         );
     }

src/frontend/src/components/forms/fields/ChoiceField.tsx

@@ -80,6 +80,7 @@ export function ChoiceField({
       data={choices}
       value={value}
       onChange={(value) => onChange(value)}
+      withinPortal={true}
     />
   );
 }

src/frontend/src/components/renderers/BuildOrderRenderer.tsx

@@ -21,7 +21,7 @@ export const BuildOrderRenderer = ({ pk }: { pk: string }) => {
   };
   return (
     <GeneralRenderer
-      api_key={ApiPaths.build_order_detail}
+      api_key={ApiPaths.build_order_list}
       api_ref="build_order"
       link={`/build/${pk}`}
       pk={pk}

src/frontend/src/components/renderers/PartRenderer.tsx

@@ -12,7 +12,7 @@ export const PartRenderer = ({
 }) => {
   return (
     <GeneralRenderer
-      api_key={ApiPaths.part_detail}
+      api_key={ApiPaths.part_list}
       api_ref="part"
       link={link ? `/part/${pk}` : ''}
       pk={pk}

src/frontend/src/components/renderers/PurchaseOrderRenderer.tsx

@@ -16,7 +16,7 @@ export const PurchaseOrderRenderer = ({ pk }: { pk: string }) => {
   };
   return (
     <GeneralRenderer
-      api_key={ApiPaths.purchase_order_detail}
+      api_key={ApiPaths.purchase_order_list}
       api_ref="pruchaseorder"
       link={`/order/purchase-order/${pk}`}
       pk={pk}

src/frontend/src/components/renderers/SalesOrderRenderer.tsx

@@ -4,7 +4,7 @@ import { GeneralRenderer } from './GeneralRenderer';
 export const SalesOrderRenderer = ({ pk }: { pk: string }) => {
   return (
     <GeneralRenderer
-      api_key={ApiPaths.sales_order_detail}
+      api_key={ApiPaths.sales_order_list}
       api_ref="sales_order"
       link={`/order/so/${pk}`}
       pk={pk}

src/frontend/src/components/renderers/StockItemRenderer.tsx

@@ -17,7 +17,7 @@ export const StockItemRenderer = ({ pk }: { pk: string }) => {
   };
   return (
     <GeneralRenderer
-      api_key={ApiPaths.stock_item_detail}
+      api_key={ApiPaths.stock_item_list}
       api_ref="stockitem"
       link={`/stock/item/${pk}`}
       pk={pk}

src/frontend/src/components/renderers/StockLocationRenderer.tsx

@@ -4,7 +4,7 @@ import { GeneralRenderer } from './GeneralRenderer';
 export const StockLocationRenderer = ({ pk }: { pk: string }) => {
   return (
     <GeneralRenderer
-      api_key={ApiPaths.stock_location_detail}
+      api_key={ApiPaths.stock_location_list}
       api_ref="stock_location"
       link={`/stock/location/${pk}`}
       pk={pk}

src/frontend/src/components/renderers/SupplierPartRenderer.tsx

@@ -23,7 +23,7 @@ export const SupplierPartRenderer = ({ pk }: { pk: string }) => {
   };
   return (
     <GeneralRenderer
-      api_key={ApiPaths.supplier_part_detail}
+      api_key={ApiPaths.supplier_part_list}
       api_ref="supplier_part"
       link={`/supplier-part/${pk}`}
       pk={pk}

src/frontend/src/components/tables/AttachmentTable.tsx

@@ -2,7 +2,6 @@ import { t } from '@lingui/macro';
 import { Badge, Group, Stack, Text, Tooltip } from '@mantine/core';
 import { ActionIcon } from '@mantine/core';
 import { Dropzone } from '@mantine/dropzone';
-import { useId } from '@mantine/hooks';
 import { notifications } from '@mantine/notifications';
 import { IconExternalLink, IconFileUpload } from '@tabler/icons-react';
 import { ReactNode, useEffect, useMemo, useState } from 'react';
@@ -14,6 +13,7 @@ import {
   editAttachment
 } from '../../functions/forms/AttachmentForms';
 import { useTableRefresh } from '../../hooks/TableRefresh';
+import { ApiPaths } from '../../states/ApiState';
 import { AttachmentLink } from '../items/AttachmentLink';
 import { TableColumn } from './Column';
 import { InvenTreeTable } from './InvenTreeTable';
@@ -77,7 +77,7 @@ export function AttachmentTable({
   model,
   pk
 }: {
-  url: string;
+  url: ApiPaths;
   pk: number;
   model: string;
 }): ReactNode {

src/frontend/src/components/tables/InvenTreeTable.tsx

@@ -24,7 +24,6 @@ const defaultPageSize: number = 25;
 /**
  * Set of optional properties which can be passed to an InvenTreeTable component
  *
- * @param url : string - The API endpoint to query
  * @param params : any - Base query parameters
  * @param tableKey : string - Unique key for the table (used for local storage)
  * @param refreshId : string - Unique ID for the table (used to trigger a refresh)

src/frontend/src/components/tables/build/BuildOrderTable.tsx

@@ -4,7 +4,7 @@ import { useMemo } from 'react';
 import { useNavigate } from 'react-router-dom';
 
 import { useTableRefresh } from '../../../hooks/TableRefresh';
-import { ThumbnailHoverCard } from '../../items/Thumbnail';
+import { ApiPaths, url } from '../../../states/ApiState';
 import { TableColumn } from '../Column';
 import { TableFilter } from '../Filter';
 import { InvenTreeTable } from '../InvenTreeTable';
@@ -142,7 +142,7 @@ export function BuildOrderTable({ params = {} }: { params?: any }) {
 
   return (
     <InvenTreeTable
-      url="build/"
+      url={url(ApiPaths.build_order_list)}
       tableKey={tableKey}
       columns={tableColumns}
       props={{

src/frontend/src/components/tables/notifications/NotificationsTable.tsx

@@ -1,6 +1,7 @@
 import { t } from '@lingui/macro';
 import { useMemo } from 'react';
 
+import { ApiPaths, url } from '../../../states/ApiState';
 import { TableColumn } from '../Column';
 import { InvenTreeTable } from '../InvenTreeTable';
 import { RowAction } from '../RowActions';
@@ -39,7 +40,7 @@ export function NotificationTable({
 
   return (
     <InvenTreeTable
-      url="/notifications/"
+      url={url(ApiPaths.notifications_list)}
       tableKey={tableKey}
       columns={columns}
       props={{

src/frontend/src/components/tables/part/PartCategoryTable.tsx

@@ -3,6 +3,7 @@ import { useMemo } from 'react';
 import { useNavigate } from 'react-router-dom';
 
 import { useTableRefresh } from '../../../hooks/TableRefresh';
+import { ApiPaths, url } from '../../../states/ApiState';
 import { TableColumn } from '../Column';
 import { InvenTreeTable } from '../InvenTreeTable';
 
@@ -45,7 +46,7 @@ export function PartCategoryTable({ params = {} }: { params?: any }) {
 
   return (
     <InvenTreeTable
-      url="part/category/"
+      url={url(ApiPaths.category_list)}
       tableKey={tableKey}
       columns={tableColumns}
       props={{

src/frontend/src/components/tables/part/PartTable.tsx

@@ -7,7 +7,7 @@ import { editPart } from '../../../functions/forms/PartForms';
 import { notYetImplemented } from '../../../functions/notifications';
 import { shortenString } from '../../../functions/tables';
 import { useTableRefresh } from '../../../hooks/TableRefresh';
-import { ThumbnailHoverCard } from '../../items/Thumbnail';
+import { ApiPaths, url } from '../../../states/ApiState';
 import { TableColumn } from '../Column';
 import { TableFilter } from '../Filter';
 import { InvenTreeTable, InvenTreeTableProps } from '../InvenTreeTable';
@@ -221,7 +221,7 @@ export function PartListTable({ props }: { props: InvenTreeTableProps }) {
 
   return (
     <InvenTreeTable
-      url="part/"
+      url={url(ApiPaths.part_list)}
       tableKey={tableKey}
       columns={tableColumns}
       props={{

src/frontend/src/components/tables/part/RelatedPartTable.tsx

@@ -6,6 +6,7 @@ import { useNavigate } from 'react-router-dom';
 
 import { openCreateApiForm, openDeleteApiForm } from '../../../functions/forms';
 import { useTableRefresh } from '../../../hooks/TableRefresh';
+import { ApiPaths, url } from '../../../states/ApiState';
 import { Thumbnail } from '../../items/Thumbnail';
 import { TableColumn } from '../Column';
 import { InvenTreeTable } from '../InvenTreeTable';
@@ -59,7 +60,7 @@ export function RelatedPartTable({ partId }: { partId: number }): ReactNode {
     openCreateApiForm({
       name: 'add-related-part',
       title: t`Add Related Part`,
-      url: '/part/related/',
+      url: ApiPaths.related_part_list,
       fields: {
         part_1: {
           hidden: true,
@@ -99,7 +100,7 @@ export function RelatedPartTable({ partId }: { partId: number }): ReactNode {
         onClick: () => {
           openDeleteApiForm({
             name: 'delete-related-part',
-            url: '/part/related/',
+            url: ApiPaths.related_part_list,
             pk: record.pk,
             title: t`Delete Related Part`,
             successMessage: t`Related part deleted`,
@@ -115,13 +116,13 @@ export function RelatedPartTable({ partId }: { partId: number }): ReactNode {
 
   return (
     <InvenTreeTable
-      url="/part/related/"
+      url={url(ApiPaths.related_part_list)}
       tableKey={tableKey}
       columns={tableColumns}
       props={{
         params: {
           part: partId,
-          catefory_detail: true
+          category_detail: true
         },
         rowActions: rowActions,
         customActionGroups: customActions

src/frontend/src/components/tables/stock/StockItemTable.tsx

@@ -5,6 +5,7 @@ import { useNavigate } from 'react-router-dom';
 
 import { notYetImplemented } from '../../../functions/notifications';
 import { useTableRefresh } from '../../../hooks/TableRefresh';
+import { ApiPaths, url } from '../../../states/ApiState';
 import { ThumbnailHoverCard } from '../../items/Thumbnail';
 import { TableColumn } from '../Column';
 import { TableFilter } from '../Filter';
@@ -125,7 +126,7 @@ export function StockItemTable({ params = {} }: { params?: any }) {
 
   return (
     <InvenTreeTable
-      url="stock/"
+      url={url(ApiPaths.stock_item_list)}
       tableKey={tableKey}
       columns={tableColumns}
       props={{

src/frontend/src/components/tables/stock/StockLocationTable.tsx

@@ -3,6 +3,7 @@ import { useMemo } from 'react';
 import { useNavigate } from 'react-router-dom';
 
 import { useTableRefresh } from '../../../hooks/TableRefresh';
+import { ApiPaths, url } from '../../../states/ApiState';
 import { TableColumn } from '../Column';
 import { InvenTreeTable } from '../InvenTreeTable';
 
@@ -59,7 +60,7 @@ export function StockLocationTable({ params = {} }: { params?: any }) {
 
   return (
     <InvenTreeTable
-      url="stock/location/"
+      url={url(ApiPaths.stock_location_list)}
       tableKey={tableKey}
       columns={tableColumns}
       props={{

src/frontend/src/functions/forms.tsx

@@ -6,6 +6,7 @@ import { AxiosResponse } from 'axios';
 import { api } from '../App';
 import { ApiForm, ApiFormProps } from '../components/forms/ApiForm';
 import { ApiFormFieldType } from '../components/forms/fields/ApiFormField';
+import { url } from '../states/ApiState';
 import { invalidResponse, permissionDenied } from './notifications';
 import { generateUniqueId } from './uid';
 
@@ -13,17 +14,7 @@ import { generateUniqueId } from './uid';
  * Construct an API url from the provided ApiFormProps object
  */
 export function constructFormUrl(props: ApiFormProps): string {
-  let url = props.url;
-
-  if (!url.endsWith('/')) {
-    url += '/';
-  }
-
-  if (props.pk && props.pk > 0) {
-    url += `${props.pk}/`;
-  }
-
-  return url;
+  return url(props.url, props.pk);
 }
 
 /**
@@ -76,7 +67,7 @@ export function extractAvailableFields(
     fields[fieldName] = {
       ...field,
       name: fieldName,
-      fieldType: field.type,
+      field_type: field.type,
       description: field.help_text,
       value: field.value ?? field.default
     };

src/frontend/src/functions/forms/AttachmentForms.tsx

@@ -2,6 +2,7 @@ import { t } from '@lingui/macro';
 import { Text } from '@mantine/core';
 
 import { ApiFormFieldSet } from '../../components/forms/fields/ApiFormField';
+import { ApiPaths } from '../../states/ApiState';
 import {
   openCreateApiForm,
   openDeleteApiForm,
@@ -31,7 +32,7 @@ export function addAttachment({
   attachmentType,
   callback
 }: {
-  url: string;
+  url: ApiPaths;
   model: string;
   pk: number;
   attachmentType: 'file' | 'link';
@@ -77,7 +78,7 @@ export function editAttachment({
   attachmentType,
   callback
 }: {
-  url: string;
+  url: ApiPaths;
   model: string;
   pk: number;
   attachmentType: 'file' | 'link';
@@ -116,7 +117,7 @@ export function deleteAttachment({
   pk,
   callback
 }: {
-  url: string;
+  url: ApiPaths;
   pk: number;
   callback: () => void;
 }) {

src/frontend/src/functions/forms/PartForms.tsx

@@ -4,6 +4,7 @@ import {
   ApiFormFieldSet,
   ApiFormFieldType
 } from '../../components/forms/fields/ApiFormField';
+import { ApiPaths } from '../../states/ApiState';
 import { openCreateApiForm, openEditApiForm } from '../forms';
 
 /**
@@ -74,7 +75,7 @@ export function createPart() {
   openCreateApiForm({
     name: 'part-create',
     title: t`Create Part`,
-    url: '/part/',
+    url: ApiPaths.part_list,
     successMessage: t`Part created`,
     fields: partFields({})
   });
@@ -94,7 +95,7 @@ export function editPart({
   openEditApiForm({
     name: 'part-edit',
     title: t`Edit Part`,
-    url: '/part/',
+    url: ApiPaths.part_list,
     pk: part_id,
     successMessage: t`Part updated`,
     fields: partFields({ editing: true }),

src/frontend/src/functions/forms/StockForms.tsx

@@ -6,6 +6,7 @@ import {
   ApiFormFieldSet,
   ApiFormFieldType
 } from '../../components/forms/fields/ApiFormField';
+import { ApiPaths } from '../../states/ApiState';
 import { openCreateApiForm, openEditApiForm } from '../forms';
 
 /**
@@ -54,7 +55,7 @@ export function stockFields({}: {}): ApiFormFieldSet {
     },
     serial_numbers: {
       // TODO: icon
-      fieldType: 'string',
+      field_type: 'string',
       label: t`Serial Numbers`,
       description: t`Enter serial numbers for new stock (or leave blank)`,
       required: false
@@ -99,7 +100,7 @@ export function stockFields({}: {}): ApiFormFieldSet {
 export function createStockItem() {
   openCreateApiForm({
     name: 'stockitem-create',
-    url: '/stock/',
+    url: ApiPaths.stock_item_list,
     fields: stockFields({}),
     title: t`Create Stock Item`
   });
@@ -112,7 +113,7 @@ export function createStockItem() {
 export function editStockItem(item: number) {
   openEditApiForm({
     name: 'stockitem-edit',
-    url: '/stock/',
+    url: ApiPaths.stock_item_list,
     pk: item,
     fields: stockFields({}),
     title: t`Edit Stock Item`

src/frontend/src/hooks/UseInstance.tsx

@@ -2,6 +2,7 @@ import { useQuery } from '@tanstack/react-query';
 import { useCallback, useState } from 'react';
 
 import { api } from '../App';
+import { ApiPaths, url } from '../states/ApiState';
 
 /**
  * Custom hook for loading a single instance of an instance from the API
@@ -12,15 +13,19 @@ import { api } from '../App';
  * To use this hook:
  * const { instance, refreshInstance } = useInstance(url: string, pk: number)
  */
-export function useInstance(
-  url: string,
-  pk: string | undefined,
-  params: any = {}
-) {
+export function useInstance({
+  endpoint,
+  pk,
+  params = {}
+}: {
+  endpoint: ApiPaths;
+  pk: string | undefined;
+  params?: any;
+}) {
   const [instance, setInstance] = useState<any>({});
 
   const instanceQuery = useQuery({
-    queryKey: ['instance', url, pk, params],
+    queryKey: ['instance', endpoint, pk, params],
     queryFn: async () => {
       if (pk == null || pk == undefined || pk.length == 0) {
         setInstance({});
@@ -28,7 +33,7 @@ export function useInstance(
       }
 
       return api
-        .get(url + pk + '/', {
+        .get(url(endpoint, pk), {
           params: params
         })
         .then((response) => {

src/frontend/src/pages/Index/Playground.tsx

@@ -15,6 +15,7 @@ import {
   partCategoryFields
 } from '../../functions/forms/PartForms';
 import { createStockItem } from '../../functions/forms/StockForms';
+import { ApiPaths } from '../../states/ApiState';
 
 // Generate some example forms using the modal API forms interface
 function ApiFormsPlayground() {
@@ -22,7 +23,7 @@ function ApiFormsPlayground() {
 
   const editCategoryForm: ApiFormProps = {
     name: 'partcategory',
-    url: '/part/category/',
+    url: ApiPaths.category_list,
     pk: 2,
     title: 'Edit Category',
     fields: fields
@@ -30,7 +31,7 @@ function ApiFormsPlayground() {
 
   const createAttachmentForm: ApiFormProps = {
     name: 'createattachment',
-    url: '/part/attachment/',
+    url: ApiPaths.part_attachment_list,
     title: 'Create Attachment',
     successMessage: 'Attachment uploaded',
     fields: {

src/frontend/src/pages/build/BuildDetail.tsx

@@ -6,16 +6,13 @@ import {
   IconInfoCircle,
   IconList,
   IconListCheck,
-  IconListTree,
   IconNotes,
   IconPaperclip,
   IconSitemap
 } from '@tabler/icons-react';
-import { useQuery } from '@tanstack/react-query';
-import { useEffect, useMemo, useState } from 'react';
+import { useMemo } from 'react';
 import { useParams } from 'react-router-dom';
 
-import { api } from '../../App';
 import {
   PlaceholderPanel,
   PlaceholderPill
@@ -27,6 +24,7 @@ import { BuildOrderTable } from '../../components/tables/build/BuildOrderTable';
 import { StockItemTable } from '../../components/tables/stock/StockItemTable';
 import { NotesEditor } from '../../components/widgets/MarkdownEditor';
 import { useInstance } from '../../hooks/UseInstance';
+import { ApiPaths, url } from '../../states/ApiState';
 
 /**
  * Detail page for a single Build Order
@@ -38,8 +36,12 @@ export default function BuildDetail() {
     instance: build,
     refreshInstance,
     instanceQuery
-  } = useInstance('/build/', id, {
-    part_detail: true
+  } = useInstance({
+    endpoint: ApiPaths.build_order_list,
+    pk: id,
+    params: {
+      part_detail: true
+    }
   });
 
   const buildPanels: PanelType[] = useMemo(() => {
@@ -107,7 +109,7 @@ export default function BuildDetail() {
         icon: <IconPaperclip size="18" />,
         content: (
           <AttachmentTable
-            url="/build/attachment/"
+            url={ApiPaths.build_order_attachment_list}
             model="build"
             pk={build.pk ?? -1}
           />
@@ -119,7 +121,7 @@ export default function BuildDetail() {
         icon: <IconNotes size="18" />,
         content: (
           <NotesEditor
-            url={`/build/${build.pk}/`}
+            url={url(ApiPaths.build_order_list, build.pk)}
             data={build.notes ?? ''}
             allowEdit={true}
           />

src/frontend/src/pages/part/CategoryDetail.tsx

@@ -16,6 +16,7 @@ import { PanelGroup, PanelType } from '../../components/nav/PanelGroup';
 import { PartCategoryTable } from '../../components/tables/part/PartCategoryTable';
 import { PartListTable } from '../../components/tables/part/PartTable';
 import { useInstance } from '../../hooks/UseInstance';
+import { ApiPaths } from '../../states/ApiState';
 
 /**
  * Detail view for a single PartCategory instance.
@@ -29,7 +30,13 @@ export default function CategoryDetail({}: {}) {
     instance: category,
     refreshInstance,
     instanceQuery
-  } = useInstance('/part/category/', id, { path_detail: true });
+  } = useInstance({
+    endpoint: ApiPaths.category_list,
+    pk: id,
+    params: {
+      path_detail: true
+    }
+  });
 
   const categoryPanels: PanelType[] = useMemo(
     () => [

src/frontend/src/pages/part/PartDetail.tsx

@@ -29,6 +29,7 @@ import { StockItemTable } from '../../components/tables/stock/StockItemTable';
 import { NotesEditor } from '../../components/widgets/MarkdownEditor';
 import { editPart } from '../../functions/forms/PartForms';
 import { useInstance } from '../../hooks/UseInstance';
+import { ApiPaths, url } from '../../states/ApiState';
 
 /**
  * Detail view for a single Part instance
@@ -40,7 +41,13 @@ export default function PartDetail() {
     instance: part,
     refreshInstance,
     instanceQuery
-  } = useInstance('/part/', id, { path_detail: true });
+  } = useInstance({
+    endpoint: ApiPaths.part_list,
+    pk: id,
+    params: {
+      path_detail: true
+    }
+  });
 
   // Part data panels (recalculate when part data changes)
   const partPanels: PanelType[] = useMemo(() => {
@@ -123,7 +130,7 @@ export default function PartDetail() {
         name: 'related_parts',
         label: t`Related Parts`,
         icon: <IconLayersLinked size="18" />,
-        content: partRelatedTab()
+        content: <RelatedPartTable partId={part.pk ?? -1} />
       },
       {
         name: 'attachments',
@@ -131,7 +138,7 @@ export default function PartDetail() {
         icon: <IconPaperclip size="18" />,
         content: (
           <AttachmentTable
-            url="/part/attachment/"
+            url={ApiPaths.part_attachment_list}
             model="part"
             pk={part.pk ?? -1}
           />
@@ -146,14 +153,11 @@ export default function PartDetail() {
     ];
   }, [part]);
 
-  function partRelatedTab(): React.ReactNode {
-    return <RelatedPartTable partId={part.pk ?? -1} />;
-  }
   function partNotesTab(): React.ReactNode {
     // TODO: Set edit permission based on user permissions
     return (
       <NotesEditor
-        url={`/part/${part.pk}/`}
+        url={url(ApiPaths.part_list, part.pk)}
         data={part.notes ?? ''}
         allowEdit={true}
       />

src/frontend/src/pages/stock/LocationDetail.tsx

@@ -9,6 +9,7 @@ import { PanelGroup, PanelType } from '../../components/nav/PanelGroup';
 import { StockItemTable } from '../../components/tables/stock/StockItemTable';
 import { StockLocationTable } from '../../components/tables/stock/StockLocationTable';
 import { useInstance } from '../../hooks/UseInstance';
+import { ApiPaths } from '../../states/ApiState';
 
 export default function Stock() {
   const { id } = useParams();
@@ -17,7 +18,13 @@ export default function Stock() {
     instance: location,
     refreshInstance,
     instanceQuery
-  } = useInstance('/stock/location/', id, { path_detail: true });
+  } = useInstance({
+    endpoint: ApiPaths.stock_location_list,
+    pk: id,
+    params: {
+      path_detail: true
+    }
+  });
 
   const locationPanels: PanelType[] = useMemo(() => {
     return [

src/frontend/src/pages/stock/StockDetail.tsx

@@ -7,10 +7,9 @@ import {
   IconInfoCircle,
   IconNotes,
   IconPaperclip,
-  IconSitemap,
-  IconTransferIn
+  IconSitemap
 } from '@tabler/icons-react';
-import { useEffect, useMemo } from 'react';
+import { useMemo } from 'react';
 import { useParams } from 'react-router-dom';
 
 import { PlaceholderPanel } from '../../components/items/Placeholder';
@@ -19,6 +18,7 @@ import { PanelGroup, PanelType } from '../../components/nav/PanelGroup';
 import { AttachmentTable } from '../../components/tables/AttachmentTable';
 import { NotesEditor } from '../../components/widgets/MarkdownEditor';
 import { useInstance } from '../../hooks/UseInstance';
+import { ApiPaths, url } from '../../states/ApiState';
 
 export default function StockDetail() {
   const { id } = useParams();
@@ -27,10 +27,14 @@ export default function StockDetail() {
     instance: stockitem,
     refreshInstance,
     instanceQuery
-  } = useInstance('/stock/', id, {
-    part_detail: true,
-    location_detail: true,
-    path_detail: true
+  } = useInstance({
+    endpoint: ApiPaths.stock_item_list,
+    pk: id,
+    params: {
+      part_detail: true,
+      location_detail: true,
+      path_detail: true
+    }
   });
 
   const stockPanels: PanelType[] = useMemo(() => {
@@ -71,7 +75,7 @@ export default function StockDetail() {
         icon: <IconPaperclip size="18" />,
         content: (
           <AttachmentTable
-            url="/stock/attachment/"
+            url={ApiPaths.stock_attachment_list}
             model="stock_item"
             pk={stockitem.pk ?? -1}
           />
@@ -83,7 +87,7 @@ export default function StockDetail() {
         icon: <IconNotes size="18" />,
         content: (
           <NotesEditor
-            url={`/stock/${stockitem.pk}/`}
+            url={url(ApiPaths.stock_item_list, stockitem.pk)}
             data={stockitem.notes ?? ''}
             allowEdit={true}
           />

src/frontend/src/states/ApiState.tsx

@@ -47,6 +47,7 @@ export const useServerApiState = create<ServerApiStateProps>((set, get) => ({
 }));
 
 export enum ApiPaths {
+  // User information
   user_me = 'api-user-me',
   user_roles = 'api-user-roles',
   user_token = 'api-user-token',
@@ -54,17 +55,40 @@ export enum ApiPaths {
   user_reset = 'api-user-reset',
   user_reset_set = 'api-user-reset-set',
 
+  notifications_list = 'api-notifications-list',
+
   barcode = 'api-barcode',
-  part_detail = 'api-part-detail',
-  supplier_part_detail = 'api-supplier-part-detail',
-  stock_item_detail = 'api-stock-item-detail',
-  stock_location_detail = 'api-stock-location-detail',
-  purchase_order_detail = 'api-purchase-order-detail',
-  sales_order_detail = 'api-sales-order-detail',
-  build_order_detail = 'api-build-order-detail'
+
+  // Build order URLs
+  build_order_list = 'api-build-list',
+  build_order_attachment_list = 'api-build-attachment-list',
+
+  // Part URLs
+  part_list = 'api-part-list',
+  category_list = 'api-category-list',
+  related_part_list = 'api-related-part-list',
+  part_attachment_list = 'api-part-attachment-list',
+
+  // Company URLs
+  company_list = 'api-company-list',
+  supplier_part_list = 'api-supplier-part-list',
+
+  // Stock Item URLs
+  stock_item_list = 'api-stock-item-list',
+  stock_location_list = 'api-stock-location-list',
+  stock_attachment_list = 'api-stock-attachment-list',
+
+  // Purchase Order URLs
+  purchase_order_list = 'api-purchase-order-list',
+
+  // Sales Order URLs
+  sales_order_list = 'api-sales-order-list'
 }
 
-export function url(path: ApiPaths, pk?: any): string {
+/**
+ * Return the endpoint associated with a given API path
+ */
+export function endpoint(path: ApiPaths): string {
   switch (path) {
     case ApiPaths.user_me:
       return 'user/me/';
@@ -78,25 +102,51 @@ export function url(path: ApiPaths, pk?: any): string {
       return '/auth/password/reset/';
     case ApiPaths.user_reset_set:
       return '/auth/password/reset/confirm/';
-
+    case ApiPaths.notifications_list:
+      return 'notifications/';
     case ApiPaths.barcode:
       return 'barcode/';
-    case ApiPaths.part_detail:
-      return `part/${pk}/`;
-    case ApiPaths.supplier_part_detail:
-      return `company/part/${pk}/`;
-    case ApiPaths.stock_item_detail:
-      return `stock/${pk}/`;
-    case ApiPaths.stock_location_detail:
-      return `stock/location/${pk}/`;
-    case ApiPaths.purchase_order_detail:
-      return `order/po/${pk}/`;
-    case ApiPaths.sales_order_detail:
-      return `order/so/${pk}/`;
-    case ApiPaths.build_order_detail:
-      return `build/${pk}/`;
+    case ApiPaths.build_order_list:
+      return 'build/';
+    case ApiPaths.build_order_attachment_list:
+      return 'build/attachment/';
+    case ApiPaths.part_list:
+      return 'part/';
+    case ApiPaths.category_list:
+      return 'part/category/';
+    case ApiPaths.related_part_list:
+      return 'part/related/';
+    case ApiPaths.part_attachment_list:
+      return 'part/attachment/';
+    case ApiPaths.company_list:
+      return 'company/';
+    case ApiPaths.supplier_part_list:
+      return 'company/part/';
+    case ApiPaths.stock_item_list:
+      return 'stock/';
+    case ApiPaths.stock_location_list:
+      return 'stock/location/';
+    case ApiPaths.stock_attachment_list:
+      return 'stock/attachment/';
+    case ApiPaths.purchase_order_list:
+      return 'order/po/';
+    case ApiPaths.sales_order_list:
+      return 'order/so/';
 
     default:
       return '';
   }
 }
+
+/**
+ * Construct an API URL with an endpoint and (optional) pk value
+ */
+export function url(path: ApiPaths, pk?: any): string {
+  let _url = endpoint(path);
+
+  if (_url && pk) {
+    _url += `${pk}/`;
+  }
+
+  return _url;
+}