Add pipelines path to api

Add pipelines path to api with
default to get all pipelines but
option to filter by params.

app/assets/javascripts/api.js

@@ -46,6 +46,7 @@ const Api = {
   mergeRequestsPipeline: '/api/:version/projects/:id/merge_requests/:merge_request_iid/pipelines',
   adminStatisticsPath: '/api/:version/application/statistics',
   pipelineSinglePath: '/api/:version/projects/:id/pipelines/:pipeline_id',
+  pipelinesPath: '/api/:version/projects/:id/pipelines/',
   environmentsPath: '/api/:version/projects/:id/environments',
   rawFilePath: '/api/:version/projects/:id/repository/files/:path/raw',
 
@@ -502,6 +503,15 @@ const Api = {
     return axios.get(url);
   },
 
+  // Return all pipelines for a project or filter by query params
+  pipelines(id, options = {}) {
+    const url = Api.buildUrl(this.pipelinesPath).replace(':id', encodeURIComponent(id));
+
+    return axios.get(url, {
+      params: options,
+    });
+  },
+
   environments(id) {
     const url = Api.buildUrl(this.environmentsPath).replace(':id', encodeURIComponent(id));
     return axios.get(url);