use 'repeat' serialization for params

lib/Client.js

@@ -7,6 +7,8 @@ exports.request = request;
 
 var _axios = _interopRequireDefault(require("axios"));
 
+var _qs = _interopRequireDefault(require("qs"));
+
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
 /**
@@ -42,6 +44,9 @@ function request({
       username,
       password
     },
+    paramsSerializer: params => _qs.default.stringify(params, {
+      arrayFormat: 'repeat'
+    }),
     // Note that providing headers or auth in the request object will overwrite.
     ...axiosRequest
   });

package.json

@@ -26,7 +26,8 @@
   "dependencies": {
     "@openfn/language-common": "1.6.2",
     "axios": "^0.24.0",
-    "lodash": "^4.17.19"
+    "lodash": "^4.17.19",
+    "qs": "^6.10.3"
   },
   "devDependencies": {
     "@babel/cli": "^7.12.10",

src/Client.js

@@ -1,4 +1,5 @@
 import axios from 'axios';
+import Qs from 'qs';
 
 /**
  * The request client takes configuration from state and an axios request object
@@ -26,6 +27,7 @@ export function request({ username, password }, axiosRequest) {
     responseType: 'json',
     maxRedirects: safeRedirect ? 5 : 0,
     auth: { username, password },
+    paramsSerializer: (params) => Qs.stringify(params, {arrayFormat: 'repeat'}),
     // Note that providing headers or auth in the request object will overwrite.
     ...axiosRequest,
   });

test/index.js

@@ -69,7 +69,37 @@ describe('get', () => {
     // NOTE: It appears that this is the dhis2-desired format for array params.
     const queryString =
       'dataSet=pBOMPrpg1QX&period=201401&orgUnit=DiszpKrYNg8' +
-      '&filter[]=this:Eq:that&filter[]=then:gt:2' +
+      '&filter=this:Eq:that&filter=then:gt:2' +
+      '&fields=*';
+
+    testServer
+      .get(`/api/dataValueSets?${queryString}`)
+      .matchHeader('authorization', 'Basic YWRtaW46ZGlzdHJpY3Q=')
+      .reply(200, {
+        httpStatus: 'OK',
+        message: "you've got multiple filters and that's OK!",
+      });
+
+    const finalState = await execute(
+      get('dataValueSets', query, { params: { fields: '*' } })
+    )(state);
+
+    expect(finalState.data).to.eql({
+      httpStatus: 'OK',
+      message: "you've got multiple filters and that's OK!",
+    });
+  });
+
+  it('should handle arrays of params, like orgUnit', async () => {
+    const query = {
+      dataSet: 'pBOMPrpg1QX',
+      period: 201401,
+      orgUnit: ['DiszpKrYNg8', 'otherThing'],
+    };
+
+    // NOTE: It appears that this is the dhis2-desired format for array params.
+    const queryString =
+      'dataSet=pBOMPrpg1QX&period=201401&orgUnit=DiszpKrYNg8&orgUnit=otherThing' +
       '&fields=*';
 
     testServer
@@ -250,7 +280,7 @@ describe('upsert', () => {
   it('should make a get and then an update if one item is found', async () => {
     testServer
       .get(
-        '/api/trackedEntityInstances?ou=DiszpKrYNg8&filter[]=w75KJ2mc4zz:Eq:Johns&filter[]=zDhUuAYrxNC:Eq:Doe'
+        '/api/trackedEntityInstances?ou=DiszpKrYNg8&filter=w75KJ2mc4zz:Eq:Johns&filter=zDhUuAYrxNC:Eq:Doe'
       )
       .reply(200, {
         httpStatus: 'OK',
@@ -301,7 +331,7 @@ describe('upsert', () => {
   it('should make a get and then a create if nothing is found', async () => {
     testServer
       .get(
-        '/api/trackedEntityInstances?ou=DiszpKrYNg8&filter[]=w75KJ2mc4zz:Eq:No&filter[]=zDhUuAYrxNC:Eq:One'
+        '/api/trackedEntityInstances?ou=DiszpKrYNg8&filter=w75KJ2mc4zz:Eq:No&filter=zDhUuAYrxNC:Eq:One'
       )
       .reply(200, {
         httpStatus: 'OK',
@@ -352,7 +382,7 @@ describe('upsert', () => {
   it('should make a get and FAIL if more than one thing is found', async () => {
     testServer
       .get(
-        '/api/trackedEntityInstances?ou=DiszpKrYNg8&filter[]=w75KJ2mc4zz:Eq:John&filter[]=zDhUuAYrxNC:Eq:Doe'
+        '/api/trackedEntityInstances?ou=DiszpKrYNg8&filter=w75KJ2mc4zz:Eq:John&filter=zDhUuAYrxNC:Eq:Doe'
       )
       .reply(200, {
         httpStatus: 'OK',