feat(medusa): Add support for filtering with gt, lt, gte and lte (#190)

- Add support for filtering with lt, gt, lte, gte in the following format: created_at[gt]=01-26-1997
- Add middleware for cleaning request queries
- Add order query validation
- Temp. disables tags in claim integration tests

packages/medusa/src/api/middlewares/index.js

@@ -1,9 +1,11 @@
 import { default as authenticateCustomer } from "./authenticate-customer"
 import { default as authenticate } from "./authenticate"
+import { default as normalizeQuery } from "./normalized-query"
 import { default as wrap } from "./await-middleware"
 
 export default {
   authenticate,
   authenticateCustomer,
+  normalizeQuery,
   wrap,
 }

packages/medusa/src/api/middlewares/normalized-query.js

@@ -0,0 +1,16 @@
+export default () => {
+  return (req, res, next) => {
+    const clean = Object.entries(req.query).reduce((acc, [key, val]) => {
+      if (Array.isArray(val) && val.length === 1) {
+        acc[key] = val[0].split(",")
+      } else {
+        acc[key] = val
+      }
+      return acc
+    }, {})
+
+    req.query = clean
+
+    next()
+  }
+}

packages/medusa/src/api/routes/admin/orders/index.js

@@ -9,7 +9,11 @@ export default app => {
   /**
    * List orders
    */
-  route.get("/", middlewares.wrap(require("./list-orders").default))
+  route.get(
+    "/",
+    middlewares.normalizeQuery(),
+    middlewares.wrap(require("./list-orders").default)
+  )
 
   /**
    * Get an order
@@ -280,3 +284,20 @@ export const allowedRelations = [
   "swaps.return_order",
   "swaps.additional_items",
 ]
+
+export const filterableFields = [
+  "id",
+  "status",
+  "fulfillment_status",
+  "payment_status",
+  "display_id",
+  "cart_id",
+  "customer_id",
+  "email",
+  "region_id",
+  "currency_code",
+  "tax_rate",
+  "canceled_at",
+  "created_at",
+  "updated_at",
+]

packages/medusa/src/api/routes/admin/orders/list-orders.js

@@ -1,8 +1,16 @@
 import _ from "lodash"
-import { Not } from "typeorm"
-import { defaultRelations, defaultFields } from "./"
+import { defaultRelations, defaultFields, filterableFields } from "./"
+import { MedusaError, Validator } from "medusa-core-utils"
 
 export default async (req, res) => {
+  const schema = Validator.orderFilter()
+
+  const { value, error } = schema.validate(req.query)
+
+  if (error) {
+    throw new MedusaError(MedusaError.Types.INVALID_DATA, error.details)
+  }
+
   try {
     const orderService = req.scope.resolve("orderService")
 
@@ -18,6 +26,8 @@ export default async (req, res) => {
     let includeFields = []
     if ("fields" in req.query) {
       includeFields = req.query.fields.split(",")
+      // Ensure created_at is included, since we are sorting on this
+      includeFields.push("created_at")
     }
 
     let expandFields = []
@@ -25,17 +35,9 @@ export default async (req, res) => {
       expandFields = req.query.expand.split(",")
     }
 
-    if ("new" in req.query) {
-      selector = {
-        payment_status: Not("captured"),
-        fulfillment_status: Not("shipped"),
-      }
-    }
-
-    if ("requires_more" in req.query) {
-      selector = {
-        payment_status: Not("captured"),
-        fulfillment_status: Not("shipped"),
+    for (const k of filterableFields) {
+      if (k in value) {
+        selector[k] = value[k]
       }
     }
 
@@ -52,8 +54,12 @@ export default async (req, res) => {
       listConfig
     )
 
+    let data = orders
+
     const fields = [...includeFields, ...expandFields]
-    const data = orders.map(o => _.pick(o, fields))
+    if (fields.length) {
+      data = orders.map(o => _.pick(o, fields))
+    }
 
     res.json({ orders: data, count, offset, limit })
   } catch (error) {