diff --git a/umap/static/umap/js/modules/autocomplete.js b/umap/static/umap/js/modules/autocomplete.js
index 4fde8b84..da02c390 100644
--- a/umap/static/umap/js/modules/autocomplete.js
+++ b/umap/static/umap/js/modules/autocomplete.js
@@ -1,6 +1,11 @@
-import { DomUtil, DomEvent, setOptions } from '../../vendors/leaflet/leaflet-src.esm.js'
+import {
+  DomUtil,
+  DomEvent,
+  setOptions,
+  Util,
+} from '../../vendors/leaflet/leaflet-src.esm.js'
 import { translate } from './i18n.js'
-import { ServerRequest } from './request.js'
+import { Request, ServerRequest } from './request.js'
 
 export class BaseAutocomplete {
   constructor(el, options) {
@@ -216,11 +221,17 @@ export class BaseAutocomplete {
   }
 }
 
-class BaseAjax extends BaseAutocomplete {
+export class BaseAjax extends BaseAutocomplete {
+  URL = '/foobar/?q={q}'
   constructor(el, options) {
     super(el, options)
-    this.server = new ServerRequest()
+    this.initRequest()
   }
+
+  initRequest() {
+    this.request = new Request()
+  }
+
   optionToResult(option) {
     return {
       value: option.value,
@@ -237,71 +248,94 @@ class BaseAjax extends BaseAutocomplete {
     if (val === this.cache) return
     else this.cache = val
     val = val.toLowerCase()
-    const [{ data }, response] = await this.server.get(
-      `/agnocomplete/AutocompleteUser/?q=${encodeURIComponent(val)}`
-    )
-    this.handleResults(data)
+    const url = Util.template(this.URL, {q: encodeURIComponent(val)})
+    this.handleResults(await this._search(url))
+  }
+
+  async _search(url) {
+    const response = await this.request.get(url)
+    if (response && response.ok) {
+      return await response.json()
+    }
+
   }
 }
 
-export class AjaxAutocompleteMultiple extends BaseAjax {
-  initSelectedContainer() {
-    return DomUtil.after(
-      this.input,
-      DomUtil.element({ tagName: 'ul', className: 'umap-multiresult' })
-    )
+class BaseServerAjax extends BaseAjax {
+  URL = '/agnocomplete/AutocompleteUser/?q={q}'
+  initRequest() {
+    this.server = new ServerRequest()
   }
-
-  displaySelected(result) {
-    const result_el = DomUtil.element({
-      tagName: 'li',
-      parent: this.selectedContainer,
-    })
-    result_el.textContent = result.item.label
-    const close = DomUtil.element({
-      tagName: 'span',
-      parent: result_el,
-      className: 'close',
-      textContent: '×',
-    })
-    DomEvent.on(close, 'click', () => {
-      this.selectedContainer.removeChild(result_el)
-      this.options.on_unselect(result)
-    })
-    this.hide()
+  async _search(url) {
+    const [{ data }, response] = await this.server.get(url)
+    return data
   }
 }
 
-export class AjaxAutocomplete extends BaseAjax {
-  initSelectedContainer() {
-    return DomUtil.after(
-      this.input,
-      DomUtil.element({ tagName: 'div', className: 'umap-singleresult' })
-    )
+export const SingleMixin = (Base) =>
+  class extends Base {
+    initSelectedContainer() {
+      return DomUtil.after(
+        this.input,
+        DomUtil.element({ tagName: 'div', className: 'umap-singleresult' })
+      )
+    }
+
+    displaySelected(result) {
+      const result_el = DomUtil.element({
+        tagName: 'div',
+        parent: this.selectedContainer,
+      })
+      result_el.textContent = result.item.label
+      const close = DomUtil.element({
+        tagName: 'span',
+        parent: result_el,
+        className: 'close',
+        textContent: '×',
+      })
+      this.input.style.display = 'none'
+      DomEvent.on(
+        close,
+        'click',
+        function () {
+          this.selectedContainer.innerHTML = ''
+          this.input.style.display = 'block'
+        },
+        this
+      )
+      this.hide()
+    }
   }
 
-  displaySelected(result) {
-    const result_el = DomUtil.element({
-      tagName: 'div',
-      parent: this.selectedContainer,
-    })
-    result_el.textContent = result.item.label
-    const close = DomUtil.element({
-      tagName: 'span',
-      parent: result_el,
-      className: 'close',
-      textContent: '×',
-    })
-    this.input.style.display = 'none'
-    DomEvent.on(
-      close,
-      'click',
-      function () {
-        this.selectedContainer.innerHTML = ''
-        this.input.style.display = 'block'
-      },
-      this
-    )
-    this.hide()
+export const MultipleMixin = (Base) =>
+  class extends Base {
+    initSelectedContainer() {
+      return DomUtil.after(
+        this.input,
+        DomUtil.element({ tagName: 'ul', className: 'umap-multiresult' })
+      )
+    }
+
+    displaySelected(result) {
+      const result_el = DomUtil.element({
+        tagName: 'li',
+        parent: this.selectedContainer,
+      })
+      result_el.textContent = result.item.label
+      const close = DomUtil.element({
+        tagName: 'span',
+        parent: result_el,
+        className: 'close',
+        textContent: '×',
+      })
+      DomEvent.on(close, 'click', () => {
+        this.selectedContainer.removeChild(result_el)
+        this.options.on_unselect(result)
+      })
+      this.hide()
+    }
   }
-}
+
+export class AjaxAutocompleteMultiple extends MultipleMixin(BaseServerAjax) {}
+
+export class AjaxAutocomplete extends SingleMixin(BaseServerAjax) {}
diff --git a/umap/static/umap/js/modules/importer.js b/umap/static/umap/js/modules/importer.js
index 95ce108a..35233048 100644
--- a/umap/static/umap/js/modules/importer.js
+++ b/umap/static/umap/js/modules/importer.js
@@ -42,9 +42,13 @@ export default class Importer {
       parent: this.container,
       textContent: translate('Import from:'),
     })
-    const plugins = L.DomUtil.element({tagName: 'div', className: 'umap-multiplechoice by2', parent: this.container})
+    const plugins = L.DomUtil.element({
+      tagName: 'div',
+      className: 'umap-multiplechoice by2',
+      parent: this.container,
+    })
     for (const plugin of this.map.plugins) {
-      const {name, callback} = plugin.addImporter()
+      const { name, callback } = plugin.addImporter()
       L.DomUtil.createButton('flat', plugins, name, () => callback.bind(plugin)(this))
     }
     this.typeLabel = L.DomUtil.add(
diff --git a/umap/static/umap/js/modules/plugins/geodatamine.js b/umap/static/umap/js/modules/plugins/geodatamine.js
index a882dffe..8952e194 100644
--- a/umap/static/umap/js/modules/plugins/geodatamine.js
+++ b/umap/static/umap/js/modules/plugins/geodatamine.js
@@ -1,15 +1,12 @@
 import { DomUtil, DomEvent, stamp } from '../../../vendors/leaflet/leaflet-src.esm.js'
 import { translate } from '../i18n.js'
-import { AjaxAutocomplete } from '../autocomplete.js'
+import { BaseAjax, SingleMixin } from '../autocomplete.js'
 import { Request } from '../request.js'
 import Alert from '../ui/alert.js'
 import Dialog from '../ui/dialog.js'
 
-class Autocomplete extends AjaxAutocomplete {
-  constructor(request, el, options) {
-    super(el, options)
-    this.request = request
-  }
+class Autocomplete extends SingleMixin(BaseAjax) {
+  URL = 'https://geodatamine.fr/boundaries/search?text={q}'
 
   createResult(item) {
     return super.createResult({
@@ -17,24 +14,6 @@ class Autocomplete extends AjaxAutocomplete {
       label: `${item.name} (${item.ref})`,
     })
   }
-
-  async search() {
-    let val = this.input.value
-    if (val.length < this.options.minChar) {
-      this.clear()
-      return
-    }
-    if (`${val}` === `${this.cache}`) return
-    else this.cache = val
-    val = val.toLowerCase()
-    const response = await this.request.get(
-      `https://geodatamine.fr/boundaries/search?text=${encodeURIComponent(val)}`
-    )
-    if (response && response.ok) {
-      const data = await response.json()
-      this.handleResults(data)
-    }
-  }
 }
 
 export class Plugin {
@@ -83,7 +62,7 @@ export class Plugin {
       className: 'edit-owner',
       on_select: (choice) => this.onSelect(choice),
     }
-    this.autocomplete = new Autocomplete(this.request, container, options)
+    this.autocomplete = new Autocomplete(container, options)
     const confirm = () => {
       importer.urlInput.value = `${this.baseUrl}/data/${select.value}/${this.options.boundary}?format=geojson`
       importer.typeInput.value = 'geojson'