provider - enable subscription support (newHeads, logs)

2024-12-23 09:52:26 +01:00 · 2018-10-08 11:55:07 -04:00 · 2018-10-08 11:55:07 -04:00 · 354f8c0d7d
commit 354f8c0d7d
parent c500ef4a58
4 changed files with 302 additions and 91 deletions
--- a/app/scripts/controllers/network/createInfuraClient.js
+++ b/app/scripts/controllers/network/createInfuraClient.js
@ -1,5 +1,6 @@
 const mergeMiddleware = require('json-rpc-engine/src/mergeMiddleware')
-const createBlockReEmitMiddleware = require('eth-json-rpc-middleware/block-reemit')
+const createBlockReRefMiddleware = require('eth-json-rpc-middleware/block-ref')
+const createRetryOnEmptyMiddleware = require('eth-json-rpc-middleware/retryOnEmpty')
 const createBlockCacheMiddleware = require('eth-json-rpc-middleware/block-cache')
 const createInflightMiddleware = require('eth-json-rpc-middleware/inflight-cache')
 const createBlockTrackerInspectorMiddleware = require('eth-json-rpc-middleware/block-tracker-inspector')
@ -11,13 +12,14 @@ module.exports = createInfuraClient

 function createInfuraClient ({ network }) {
  const infuraMiddleware = createInfuraMiddleware({ network })
-  const blockProvider = providerFromMiddleware(infuraMiddleware)
-  const blockTracker = new BlockTracker({ provider: blockProvider })
+  const infuraProvider = providerFromMiddleware(infuraMiddleware)
+  const blockTracker = new BlockTracker({ provider: infuraProvider })

  const networkMiddleware = mergeMiddleware([
    createBlockCacheMiddleware({ blockTracker }),
    createInflightMiddleware(),
-    createBlockReEmitMiddleware({ blockTracker, provider: blockProvider }),
+    createBlockReRefMiddleware({ blockTracker, provider: infuraProvider }),
+    createRetryOnEmptyMiddleware({ blockTracker, provider: infuraProvider }),
    createBlockTrackerInspectorMiddleware({ blockTracker }),
    infuraMiddleware,
  ])
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@ -15,6 +15,7 @@ const RpcEngine = require('json-rpc-engine')
 const debounce = require('debounce')
 const createEngineStream = require('json-rpc-middleware-stream/engineStream')
 const createFilterMiddleware = require('eth-json-rpc-filters')
+const createSubscriptionManager = require('eth-json-rpc-filters/subscriptionManager')
 const createOriginMiddleware = require('./lib/createOriginMiddleware')
 const createLoggerMiddleware = require('./lib/createLoggerMiddleware')
 const createProviderMiddleware = require('./lib/createProviderMiddleware')
@ -1246,24 +1247,33 @@ module.exports = class MetamaskController extends EventEmitter {
  setupProviderConnection (outStream, origin) {
    // setup json rpc engine stack
    const engine = new RpcEngine()
+    const provider = this.provider
+    const blockTracker = this.blockTracker

    // create filter polyfill middleware
-    const filterMiddleware = createFilterMiddleware({
-      provider: this.provider,
-      blockTracker: this.blockTracker,
-    })
+    const filterMiddleware = createFilterMiddleware({ provider, blockTracker })
+    // create subscription polyfill middleware
+    const subscriptionManager = createSubscriptionManager({ provider, blockTracker })
+    subscriptionManager.events.on('notification', (message) => engine.emit('notification', message))

+    // metadata
    engine.push(createOriginMiddleware({ origin }))
    engine.push(createLoggerMiddleware({ origin }))
+    // filter and subscription polyfills
    engine.push(filterMiddleware)
+    engine.push(subscriptionManager.middleware)
+    // watch asset
    engine.push(this.preferencesController.requestWatchAsset.bind(this.preferencesController))
+    // sign typed data middleware
    engine.push(this.createTypedDataMiddleware('eth_signTypedData', 'V1').bind(this))
    engine.push(this.createTypedDataMiddleware('eth_signTypedData_v1', 'V1').bind(this))
    engine.push(this.createTypedDataMiddleware('eth_signTypedData_v3', 'V3', true).bind(this))
-    engine.push(createProviderMiddleware({ provider: this.provider }))
+    // forward to metamask primary provider
+    engine.push(createProviderMiddleware({ provider }))

    // setup connection
    const providerStream = createEngineStream({ engine })
+
    pump(
      outStream,
      providerStream,
--- a/package-lock.json
+++ b/package-lock.json
@ -5469,8 +5469,7 @@
    "btoa": {
      "version": "1.2.1",
      "resolved": "https://registry.npmjs.org/btoa/-/btoa-1.2.1.tgz",
-      "integrity": "sha512-SB4/MIGlsiVkMcHmT+pSmIPoNDoHg+7cMzmt3Uxt628MTz2487DKSqK/fuhFBrkuqrYv5UCEnACpF4dTFNKc/g==",
-      "dev": true
+      "integrity": "sha512-SB4/MIGlsiVkMcHmT+pSmIPoNDoHg+7cMzmt3Uxt628MTz2487DKSqK/fuhFBrkuqrYv5UCEnACpF4dTFNKc/g=="
    },
    "buffer": {
      "version": "5.1.0",
@ -9605,7 +9604,7 @@
        },
        "eth-json-rpc-middleware": {
          "version": "1.6.0",
-          "resolved": "http://registry.npmjs.org/eth-json-rpc-middleware/-/eth-json-rpc-middleware-1.6.0.tgz",
+          "resolved": "https://registry.npmjs.org/eth-json-rpc-middleware/-/eth-json-rpc-middleware-1.6.0.tgz",
          "integrity": "sha512-tDVCTlrUvdqHKqivYMjtFZsdD7TtpNLBCfKAcOpaVs7orBMS/A8HWro6dIzNtTZIR05FAbJ3bioFOnZpuCew9Q==",
          "requires": {
            "async": "^2.5.0",
@ -9644,12 +9643,12 @@
        },
        "node-fetch": {
          "version": "2.1.2",
-          "resolved": "http://registry.npmjs.org/node-fetch/-/node-fetch-2.1.2.tgz",
+          "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.1.2.tgz",
          "integrity": "sha1-q4hOjn5X44qUR1POxwb3iNF2i7U="
        },
        "whatwg-fetch": {
          "version": "2.0.4",
-          "resolved": "http://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",
+          "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz",
          "integrity": "sha512-dcQ1GWpOD/eEQ97k66aiEVpNnapVj90/+R+SXTPYGHpYBBypfKJEQjLrvMZ7YXbKm21gXd4NcuxUTjiv1YtLng=="
        }
      }
@ -9731,46 +9730,60 @@
      }
    },
    "eth-json-rpc-filters": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/eth-json-rpc-filters/-/eth-json-rpc-filters-2.1.1.tgz",
-      "integrity": "sha512-FSFcCMJ1lRS8az1LhIK5Klima8Hyfv4keKSdW2MA3zwiN/wX1NKb/sQSEFO3nstPUqR2Aa02lVokp85UnnrBlA==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/eth-json-rpc-filters/-/eth-json-rpc-filters-3.0.1.tgz",
+      "integrity": "sha512-F/UbtD47UnZDFILYP5GJLklYQ7witEI9TdCLgw0r4iag8ZLzz5h4Q+9odg2ASVZKkm8E50mrb7PaYCK0thVxfw==",
      "requires": {
-        "await-semaphore": "^0.1.1",
-        "eth-json-rpc-middleware": "^1.6.0",
-        "ethjs-query": "^0.3.6",
-        "json-rpc-engine": "^3.4.0",
-        "lodash.flatmap": "^4.5.0"
+        "await-semaphore": "^0.1.3",
+        "eth-json-rpc-middleware": "^2.6.0",
+        "ethjs-query": "^0.3.8",
+        "json-rpc-engine": "^3.8.0",
+        "lodash.flatmap": "^4.5.0",
+        "safe-event-emitter": "^1.0.1"
      },
      "dependencies": {
-        "babelify": {
-          "version": "7.3.0",
-          "resolved": "http://registry.npmjs.org/babelify/-/babelify-7.3.0.tgz",
-          "integrity": "sha1-qlau3nBn/XvVSWZu4W3ChQh+iOU=",
-          "requires": {
-            "babel-core": "^6.0.14",
-            "object-assign": "^4.0.0"
-          }
-        },
        "eth-json-rpc-middleware": {
-          "version": "1.6.0",
-          "resolved": "https://registry.npmjs.org/eth-json-rpc-middleware/-/eth-json-rpc-middleware-1.6.0.tgz",
-          "integrity": "sha512-tDVCTlrUvdqHKqivYMjtFZsdD7TtpNLBCfKAcOpaVs7orBMS/A8HWro6dIzNtTZIR05FAbJ3bioFOnZpuCew9Q==",
+          "version": "2.6.0",
+          "resolved": "https://registry.npmjs.org/eth-json-rpc-middleware/-/eth-json-rpc-middleware-2.6.0.tgz",
+          "integrity": "sha512-IziwA0IXzxCVgruvb0KzhypAdRNM6QBC6LOlXQrzr8ddo3in+PGzl9tMV79TGFoRoRfsysnjbvOKwMnQJADkIw==",
          "requires": {
            "async": "^2.5.0",
+            "btoa": "^1.2.1",
+            "clone": "^2.1.1",
            "eth-query": "^2.1.2",
+            "eth-sig-util": "^1.4.2",
            "eth-tx-summary": "^3.1.2",
            "ethereumjs-block": "^1.6.0",
            "ethereumjs-tx": "^1.3.3",
            "ethereumjs-util": "^5.1.2",
            "ethereumjs-vm": "^2.1.0",
            "fetch-ponyfill": "^4.0.0",
-            "json-rpc-engine": "^3.6.0",
+            "json-rpc-engine": "^3.6.3",
            "json-rpc-error": "^2.0.0",
            "json-stable-stringify": "^1.0.1",
+            "pify": "^3.0.0",
            "promise-to-callback": "^1.0.0",
+            "safe-event-emitter": "^1.0.1",
            "tape": "^4.6.3"
          }
        },
+        "eth-sig-util": {
+          "version": "1.4.2",
+          "resolved": "https://registry.npmjs.org/eth-sig-util/-/eth-sig-util-1.4.2.tgz",
+          "integrity": "sha1-jZWCAsftuq6Dlwf7pvCf8ydgYhA=",
+          "requires": {
+            "ethereumjs-abi": "git+https://github.com/ethereumjs/ethereumjs-abi.git#00ba8463a7f7a67fcad737ff9c2ebd95643427f7",
+            "ethereumjs-util": "^5.1.1"
+          }
+        },
+        "ethereumjs-abi": {
+          "version": "git+https://github.com/ethereumjs/ethereumjs-abi.git#00ba8463a7f7a67fcad737ff9c2ebd95643427f7",
+          "from": "git+https://github.com/ethereumjs/ethereumjs-abi.git",
+          "requires": {
+            "bn.js": "^4.10.0",
+            "ethereumjs-util": "^5.0.0"
+          }
+        },
        "ethereumjs-util": {
          "version": "5.2.0",
          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
@ -9803,19 +9816,6 @@
          "requires": {
            "promise-to-callback": "^1.0.0"
          }
-        },
-        "json-rpc-engine": {
-          "version": "3.7.3",
-          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-3.7.3.tgz",
-          "integrity": "sha512-+FO3UWu/wafh/+MZ6BXy0HZU+f5plwUn82FgxpC0scJkEh5snOjFrAAtqCITPDfvfLHRUFOG5pQDUx2pspfERQ==",
-          "requires": {
-            "async": "^2.0.1",
-            "babel-preset-env": "^1.3.2",
-            "babelify": "^7.3.0",
-            "clone": "^2.1.1",
-            "json-rpc-error": "^2.0.0",
-            "promise-to-callback": "^1.0.0"
-          }
        }
      }
    },
@ -9889,9 +9889,9 @@
      }
    },
    "eth-json-rpc-middleware": {
-      "version": "2.5.0",
-      "resolved": "https://registry.npmjs.org/eth-json-rpc-middleware/-/eth-json-rpc-middleware-2.5.0.tgz",
-      "integrity": "sha512-SVBP7U23JMd8HBp6uxh4BPbvrbtOsRI+otMCLCTtvH95MlvzuRDJZl5BQNIXZi7CNTEXjQZVcGAKLizlnc7zMQ==",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/eth-json-rpc-middleware/-/eth-json-rpc-middleware-3.0.0.tgz",
+      "integrity": "sha512-t8ajxmUodXP7WAMXKrB8jCU05BE/iSXxLeiXCmC++FWAUXhnBV3+Li1ca0q4w+swmQYsSXZnViLw5w5+I/9IpA==",
      "dev": true,
      "requires": {
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@ -9910,6 +9910,7 @@
        "json-stable-stringify": "^1.0.1",
        "pify": "^3.0.0",
        "promise-to-callback": "^1.0.0",
+        "safe-event-emitter": "^1.0.1",
        "tape": "^4.6.3"
      },
      "dependencies": {
@ -18024,15 +18025,16 @@
      "dev": true
    },
    "json-rpc-engine": {
-      "version": "3.7.4",
-      "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-3.7.4.tgz",
-      "integrity": "sha512-urQunMR6LYIPhGs6ppLGqdwSVkllaVa70Em9uGYgEi5iqG3/oKYZM0B9C9EaRfih30k+tztDn2GG9eHbuaMmwg==",
+      "version": "3.8.0",
+      "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-3.8.0.tgz",
+      "integrity": "sha512-6QNcvm2gFuuK4TKU1uwfH0Qd/cOSb9c1lls0gbnIhciktIUQJwz6NQNAW4B1KiGPenv7IKu97V222Yo1bNhGuA==",
      "requires": {
        "async": "^2.0.1",
-        "babel-preset-env": "^1.3.2",
+        "babel-preset-env": "^1.7.0",
        "babelify": "^7.3.0",
        "json-rpc-error": "^2.0.0",
-        "promise-to-callback": "^1.0.0"
+        "promise-to-callback": "^1.0.0",
+        "safe-event-emitter": "^1.0.1"
      },
      "dependencies": {
        "babelify": {
@ -18055,15 +18057,16 @@
      }
    },
    "json-rpc-middleware-stream": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/json-rpc-middleware-stream/-/json-rpc-middleware-stream-1.0.1.tgz",
-      "integrity": "sha512-IR6cOO6B21NdLpiYblueB3O+g3UAYLIZd6ZgZfddVPl0z6vSECcpuiYnV5MmIMJY3D0fLYpJqOxYaEmLYQqTtA==",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/json-rpc-middleware-stream/-/json-rpc-middleware-stream-2.1.0.tgz",
+      "integrity": "sha512-JxX+kbS9sDMHvnADFLlV/QtkgeIYVF/2R8UuxXaiZc7ntVEgi/lkzMGbGkDwdRg36rHnUIvCZk6zR/5Y3bAq1w==",
      "requires": {
        "end-of-stream": "^1.4.0",
        "eth-block-tracker": "^2.1.2",
        "ethjs-query": "^0.2.9",
-        "json-rpc-engine": "^3.0.1",
-        "readable-stream": "^2.3.3"
+        "json-rpc-engine": "^3.8.0",
+        "readable-stream": "^2.3.3",
+        "safe-event-emitter": "^1.0.1"
      },
      "dependencies": {
        "async-eventemitter": {
@ -18082,11 +18085,6 @@
            "object-assign": "^4.0.0"
          }
        },
-        "bn.js": {
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-          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
-          "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
-        },
        "eth-block-tracker": {
          "version": "2.3.1",
          "resolved": "https://registry.npmjs.org/eth-block-tracker/-/eth-block-tracker-2.3.1.tgz",
@ -18127,6 +18125,22 @@
            "is-hex-prefixed": "1.0.0",
            "number-to-bn": "1.7.0",
            "strip-hex-prefix": "1.0.0"
+          },
+          "dependencies": {
+            "bn.js": {
+              "version": "4.11.6",
+              "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
+              "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
+            },
+            "ethjs-util": {
+              "version": "0.1.3",
+              "resolved": "https://registry.npmjs.org/ethjs-util/-/ethjs-util-0.1.3.tgz",
+              "integrity": "sha1-39XqSkANxeQhqInK9H4IGtp4u1U=",
+              "requires": {
+                "is-hex-prefixed": "1.0.0",
+                "strip-hex-prefix": "1.0.0"
+              }
+            }
          }
        },
        "ethjs-query": {
@ -18143,26 +18157,17 @@
          "resolved": "https://registry.npmjs.org/ethjs-schema/-/ethjs-schema-0.1.5.tgz",
          "integrity": "sha1-WXQOOzl3vNu5sRvDBoIB6Kzquw0="
        },
-        "ethjs-util": {
-          "version": "0.1.3",
-          "resolved": "https://registry.npmjs.org/ethjs-util/-/ethjs-util-0.1.3.tgz",
-          "integrity": "sha1-39XqSkANxeQhqInK9H4IGtp4u1U=",
-          "requires": {
-            "is-hex-prefixed": "1.0.0",
-            "strip-hex-prefix": "1.0.0"
-          }
-        },
        "json-rpc-engine": {
-          "version": "3.7.3",
-          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-3.7.3.tgz",
-          "integrity": "sha512-+FO3UWu/wafh/+MZ6BXy0HZU+f5plwUn82FgxpC0scJkEh5snOjFrAAtqCITPDfvfLHRUFOG5pQDUx2pspfERQ==",
+          "version": "3.8.0",
+          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-3.8.0.tgz",
+          "integrity": "sha512-6QNcvm2gFuuK4TKU1uwfH0Qd/cOSb9c1lls0gbnIhciktIUQJwz6NQNAW4B1KiGPenv7IKu97V222Yo1bNhGuA==",
          "requires": {
            "async": "^2.0.1",
-            "babel-preset-env": "^1.3.2",
+            "babel-preset-env": "^1.7.0",
            "babelify": "^7.3.0",
-            "clone": "^2.1.1",
            "json-rpc-error": "^2.0.0",
-            "promise-to-callback": "^1.0.0"
+            "promise-to-callback": "^1.0.0",
+            "safe-event-emitter": "^1.0.1"
          }
        },
        "pify": {
@ -20828,6 +20833,13 @@
        "pump": "^1.0.2"
      },
      "dependencies": {
+        "async-eventemitter": {
+          "version": "github:ahultgren/async-eventemitter#fa06e39e56786ba541c180061dbf2c0a5bbf951c",
+          "from": "github:ahultgren/async-eventemitter#fa06e39e56786ba541c180061dbf2c0a5bbf951c",
+          "requires": {
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        "babelify": {
          "version": "7.3.0",
          "resolved": "https://registry.npmjs.org/babelify/-/babelify-7.3.0.tgz",
@ -20837,6 +20849,78 @@
            "object-assign": "^4.0.0"
          }
        },
+        "eth-block-tracker": {
+          "version": "2.3.1",
+          "resolved": "https://registry.npmjs.org/eth-block-tracker/-/eth-block-tracker-2.3.1.tgz",
+          "integrity": "sha512-NamWuMBIl8kmkJFVj8WzGatySTzQPQag4Xr677yFxdVtIxACFbL/dQowk0MzEqIKk93U1TwY3MjVU6mOcwZnKA==",
+          "requires": {
+            "async-eventemitter": "github:ahultgren/async-eventemitter#fa06e39e56786ba541c180061dbf2c0a5bbf951c",
+            "eth-query": "^2.1.0",
+            "ethereumjs-tx": "^1.3.3",
+            "ethereumjs-util": "^5.1.3",
+            "ethjs-util": "^0.1.3",
+            "json-rpc-engine": "^3.6.0",
+            "pify": "^2.3.0",
+            "tape": "^4.6.3"
+          }
+        },
+        "ethereumjs-util": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
+          "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "ethjs-util": "^0.1.3",
+            "keccak": "^1.0.2",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1",
+            "secp256k1": "^3.0.1"
+          }
+        },
+        "ethjs-format": {
+          "version": "0.2.2",
+          "resolved": "https://registry.npmjs.org/ethjs-format/-/ethjs-format-0.2.2.tgz",
+          "integrity": "sha1-1zs6YFwuElcHn3B3/VRI6ZjOD80=",
+          "requires": {
+            "bn.js": "4.11.6",
+            "ethjs-schema": "0.1.5",
+            "ethjs-util": "0.1.3",
+            "is-hex-prefixed": "1.0.0",
+            "number-to-bn": "1.7.0",
+            "strip-hex-prefix": "1.0.0"
+          },
+          "dependencies": {
+            "bn.js": {
+              "version": "4.11.6",
+              "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
+              "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
+            },
+            "ethjs-util": {
+              "version": "0.1.3",
+              "resolved": "https://registry.npmjs.org/ethjs-util/-/ethjs-util-0.1.3.tgz",
+              "integrity": "sha1-39XqSkANxeQhqInK9H4IGtp4u1U=",
+              "requires": {
+                "is-hex-prefixed": "1.0.0",
+                "strip-hex-prefix": "1.0.0"
+              }
+            }
+          }
+        },
+        "ethjs-query": {
+          "version": "0.2.9",
+          "resolved": "https://registry.npmjs.org/ethjs-query/-/ethjs-query-0.2.9.tgz",
+          "integrity": "sha1-om5rTzhpnpLzSyGE51x4lDKcQvE=",
+          "requires": {
+            "ethjs-format": "0.2.2",
+            "ethjs-rpc": "0.1.5"
+          }
+        },
+        "ethjs-schema": {
+          "version": "0.1.5",
+          "resolved": "https://registry.npmjs.org/ethjs-schema/-/ethjs-schema-0.1.5.tgz",
+          "integrity": "sha1-WXQOOzl3vNu5sRvDBoIB6Kzquw0="
+        },
        "json-rpc-engine": {
          "version": "3.7.3",
          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-3.7.3.tgz",
@ -20850,6 +20934,18 @@
            "promise-to-callback": "^1.0.0"
          }
        },
+        "json-rpc-middleware-stream": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/json-rpc-middleware-stream/-/json-rpc-middleware-stream-1.0.1.tgz",
+          "integrity": "sha512-IR6cOO6B21NdLpiYblueB3O+g3UAYLIZd6ZgZfddVPl0z6vSECcpuiYnV5MmIMJY3D0fLYpJqOxYaEmLYQqTtA==",
+          "requires": {
+            "end-of-stream": "^1.4.0",
+            "eth-block-tracker": "^2.1.2",
+            "ethjs-query": "^0.2.9",
+            "json-rpc-engine": "^3.0.1",
+            "readable-stream": "^2.3.3"
+          }
+        },
        "obs-store": {
          "version": "2.4.1",
          "resolved": "https://registry.npmjs.org/obs-store/-/obs-store-2.4.1.tgz",
@ -20862,6 +20958,11 @@
            "xtend": "^4.0.1"
          }
        },
+        "pify": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
+        },
        "pump": {
          "version": "1.0.3",
          "resolved": "https://registry.npmjs.org/pump/-/pump-1.0.3.tgz",
@ -20874,22 +20975,120 @@
      }
    },
    "metamask-inpage-provider": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/metamask-inpage-provider/-/metamask-inpage-provider-1.1.1.tgz",
-      "integrity": "sha512-I7P8mny3e03dwzt0SFsXOmoj1eEz5GpUGiBIAJ4fyXUpx92JkII5ekq/MNkf5muktoJod9cWjDF03//+/DCD2A==",
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/metamask-inpage-provider/-/metamask-inpage-provider-1.2.0.tgz",
+      "integrity": "sha512-NH27h4ckuKvgraTz+MGwvQXFu4zkAxSAUc74rIzt+4Q94km9gePDZOM81xiA0AA0IExzv3844PWSWaYI1fagog==",
      "requires": {
        "json-rpc-engine": "^3.7.4",
-        "json-rpc-middleware-stream": "^1.0.1",
+        "json-rpc-middleware-stream": "^2.0.0",
        "loglevel": "^1.6.1",
        "obj-multiplex": "^1.0.0",
        "obs-store": "^3.0.0",
-        "pump": "^3.0.0"
+        "pump": "^3.0.0",
+        "safe-event-emitter": "^1.0.1"
      },
      "dependencies": {
+        "async-eventemitter": {
+          "version": "github:ahultgren/async-eventemitter#fa06e39e56786ba541c180061dbf2c0a5bbf951c",
+          "from": "github:ahultgren/async-eventemitter#fa06e39e56786ba541c180061dbf2c0a5bbf951c",
+          "requires": {
+            "async": "^2.4.0"
+          }
+        },
+        "eth-block-tracker": {
+          "version": "2.3.1",
+          "resolved": "https://registry.npmjs.org/eth-block-tracker/-/eth-block-tracker-2.3.1.tgz",
+          "integrity": "sha512-NamWuMBIl8kmkJFVj8WzGatySTzQPQag4Xr677yFxdVtIxACFbL/dQowk0MzEqIKk93U1TwY3MjVU6mOcwZnKA==",
+          "requires": {
+            "async-eventemitter": "github:ahultgren/async-eventemitter#fa06e39e56786ba541c180061dbf2c0a5bbf951c",
+            "eth-query": "^2.1.0",
+            "ethereumjs-tx": "^1.3.3",
+            "ethereumjs-util": "^5.1.3",
+            "ethjs-util": "^0.1.3",
+            "json-rpc-engine": "^3.6.0",
+            "pify": "^2.3.0",
+            "tape": "^4.6.3"
+          }
+        },
+        "ethereumjs-util": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
+          "integrity": "sha512-CJAKdI0wgMbQFLlLRtZKGcy/L6pzVRgelIZqRqNbuVFM3K9VEnyfbcvz0ncWMRNCe4kaHWjwRYQcYMucmwsnWA==",
+          "requires": {
+            "bn.js": "^4.11.0",
+            "create-hash": "^1.1.2",
+            "ethjs-util": "^0.1.3",
+            "keccak": "^1.0.2",
+            "rlp": "^2.0.0",
+            "safe-buffer": "^5.1.1",
+            "secp256k1": "^3.0.1"
+          }
+        },
+        "ethjs-format": {
+          "version": "0.2.2",
+          "resolved": "https://registry.npmjs.org/ethjs-format/-/ethjs-format-0.2.2.tgz",
+          "integrity": "sha1-1zs6YFwuElcHn3B3/VRI6ZjOD80=",
+          "requires": {
+            "bn.js": "4.11.6",
+            "ethjs-schema": "0.1.5",
+            "ethjs-util": "0.1.3",
+            "is-hex-prefixed": "1.0.0",
+            "number-to-bn": "1.7.0",
+            "strip-hex-prefix": "1.0.0"
+          },
+          "dependencies": {
+            "bn.js": {
+              "version": "4.11.6",
+              "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
+              "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
+            },
+            "ethjs-util": {
+              "version": "0.1.3",
+              "resolved": "https://registry.npmjs.org/ethjs-util/-/ethjs-util-0.1.3.tgz",
+              "integrity": "sha1-39XqSkANxeQhqInK9H4IGtp4u1U=",
+              "requires": {
+                "is-hex-prefixed": "1.0.0",
+                "strip-hex-prefix": "1.0.0"
+              }
+            }
+          }
+        },
+        "ethjs-query": {
+          "version": "0.2.9",
+          "resolved": "https://registry.npmjs.org/ethjs-query/-/ethjs-query-0.2.9.tgz",
+          "integrity": "sha1-om5rTzhpnpLzSyGE51x4lDKcQvE=",
+          "requires": {
+            "ethjs-format": "0.2.2",
+            "ethjs-rpc": "0.1.5"
+          }
+        },
+        "ethjs-schema": {
+          "version": "0.1.5",
+          "resolved": "https://registry.npmjs.org/ethjs-schema/-/ethjs-schema-0.1.5.tgz",
+          "integrity": "sha1-WXQOOzl3vNu5sRvDBoIB6Kzquw0="
+        },
+        "json-rpc-middleware-stream": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/json-rpc-middleware-stream/-/json-rpc-middleware-stream-2.0.0.tgz",
+          "integrity": "sha512-cDM0UQrNK6LTs5GgGb7xMfL6UGhKHHVjZRkKAUYyRsb0vjGUAC4AmkAc1Wngg0PQf/IyCsrrFi6WAxsNv5hTKQ==",
+          "requires": {
+            "end-of-stream": "^1.4.0",
+            "eth-block-tracker": "^2.1.2",
+            "ethjs-query": "^0.2.9",
+            "json-rpc-engine": "^3.0.1",
+            "readable-stream": "^2.3.3",
+            "safe-event-emitter": "^1.0.1"
+          }
+        },
        "loglevel": {
          "version": "1.6.1",
          "resolved": "https://registry.npmjs.org/loglevel/-/loglevel-1.6.1.tgz",
          "integrity": "sha1-4PyVEztu8nbNyIh82vJKpvFW+Po="
+        },
+        "pify": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-2.3.0.tgz",
+          "integrity": "sha1-7RQaasBDqEnqWISY59yosVMw6Qw="
        }
      }
    },
--- a/package.json
+++ b/package.json
@ -115,7 +115,7 @@
    "eth-contract-metadata": "github:MetaMask/eth-contract-metadata#master",
    "eth-ens-namehash": "^2.0.8",
    "eth-hd-keyring": "^1.2.2",
-    "eth-json-rpc-filters": "^2.1.1",
+    "eth-json-rpc-filters": "^3.0.1",
    "eth-json-rpc-infura": "^3.0.0",
    "eth-keyring-controller": "^3.1.4",
    "eth-ledger-bridge-keyring": "^0.1.0",
@ -155,8 +155,8 @@
    "iframe-stream": "^3.0.0",
    "inject-css": "^0.1.1",
    "jazzicon": "^1.2.0",
-    "json-rpc-engine": "^3.7.4",
-    "json-rpc-middleware-stream": "^1.0.1",
+    "json-rpc-engine": "^3.8.0",
+    "json-rpc-middleware-stream": "^2.1.0",
    "jsonschema": "^1.2.4",
    "lodash.debounce": "^4.0.8",
    "lodash.memoize": "^4.1.2",
@ -164,7 +164,7 @@
    "lodash.uniqby": "^4.7.0",
    "loglevel": "^1.4.1",
    "metamascara": "^2.0.0",
-    "metamask-inpage-provider": "^1.1.1",
+    "metamask-inpage-provider": "^1.2.0",
    "metamask-logo": "^2.1.4",
    "mkdirp": "^0.5.1",
    "multihashes": "^0.4.12",
@ -260,7 +260,7 @@
    "eslint-plugin-json": "^1.2.0",
    "eslint-plugin-mocha": "^5.0.0",
    "eslint-plugin-react": "^7.4.0",
-    "eth-json-rpc-middleware": "^2.5.0",
+    "eth-json-rpc-middleware": "^3.0.0",
    "eth-keyring-controller": "^3.3.1",
    "file-loader": "^1.1.11",
    "fs-extra": "^6.0.1",