try async ipfs request

remix-resolve/package.json

@@ -30,7 +30,6 @@
   },
   "dependencies": {
     "axios": "^0.18.0",
-    "request": "^2.88.0",
     "solc": "^0.5.0",
     "url": "^0.11.0",
     "valid-url": "^1.0.9"

remix-resolve/src/resolve.ts

@@ -1,3 +1,4 @@
+import axios from 'axios'
 interface Imported {
   content: string;
   cleanURL: string;
@@ -31,8 +32,30 @@ export class ImportResolver {
   handleSwarm(url: string, cleanURL: string) {
     return
   }
-  handleIPFS(url: string) {
+  async handleIPFS(url: string) {
-    return
+    // replace ipfs:// with /ipfs/
+    url = url.replace(/^ipfs:\/\/?/, 'ipfs/')
+    console.log(url)
+    try {
+      const response = await axios.get('http://localhost:8080/' + url)
+      return response.data
+    } catch (e) {
+      throw e
+    }
+    /*axios.get('http://localhost:8080/' + url)
+      .then(function (response) {
+        // handle success
+        console.log(response);
+        return response.data
+      })
+      .catch(function (error) {
+      // handle error
+      console.log(error);
+      })
+      .then(function () {
+      // always executed
+      });
+    */
   }
   handleLocal(root: string, filePath: string) {
     return
@@ -66,13 +89,13 @@ export class ImportResolver {
       }
     ]
   }
-  async resolve(filePath: string, customHandlers: Handler[]) {
+  async resolve(filePath: string, customHandlers?: Handler[]) {
     var imported: Imported = this.previouslyHandled[filePath]
     if(imported) {
       return imported
     }
     const builtinHandlers: Handler[] = this.getHandlers()
-    const handlers: Handler[] = [...builtinHandlers, ...customHandlers]
+    const handlers: Handler[] = customHandlers ? [...builtinHandlers, ...customHandlers] : [...builtinHandlers]
     handlers.forEach(handler => {
       const match = handler.match(filePath)
       if(match) {

remix-resolve/tests/test.js

@@ -6,7 +6,7 @@ const path = require('path')
 describe('testRunner', function () {
   describe('#resolve', function() {
     describe('test example_1 [local imports]]', function () {
-      let filename = '../remix-resolve/tests/example_1/greeter.sol'
+      const fileName = '../remix-resolve/tests/example_1/greeter.sol'
       let results = {}
 
       before(function (done) {
@@ -30,7 +30,7 @@ describe('testRunner', function () {
             handle: (match) => { return handleLocal(match[2], match[3]) }
           }
         ]
-        resolver.resolve(filename, localFSHandler)
+        resolver.resolve(fileName, localFSHandler)
           .then(sources => {
             results = sources
             done()
@@ -53,5 +53,28 @@ describe('testRunner', function () {
         assert.deepEqual(results, expt)
       })
     })
+    // test IPFShandle
+    describe('test getting IPFS files', function() {
+      const fileName = 'ipfs://' + 'QmeKtwMBqz5Ac7oL8SyTD96mccEzw9X9d39jLb2kgnBYbn'
+      let results = []
+
+      before(function(done) {
+        const resolver = new rr.ImportResolver()
+        var sources = []
+        resolver.resolve(fileName)
+          .then(sources => {
+            console.log(sources)
+            results = sources
+            done()
+          })
+          .catch(e => {
+            throw e
+          })
+      })
+
+      it('should have 3 items', function () {
+        assert.equal(Object.keys(results).length, 3)
+      })
+    })
   })
 })