refactor: IPFS_GATEWAY (#94)

* Using async-await
* feat: support IPFS_GATEWAY env

ipfs/specs#280

Signed-off-by: Marcin Rataj <lidel@lidel.org>

Signed-off-by: Marcin Rataj <lidel@lidel.org>
Co-authored-by: Marcin Rataj <lidel@lidel.org>

Author: whizzzkid

README.md

@@ -159,9 +159,16 @@ in multiple locations,  and stored as the new `GEOIP_ROOT` in `src/lookup.js`
 
 ## Testing in CLI
 
+It is possible to run tests against a local gateway by passing `IPFS_GATEWAY`:
+
+```console
+$ IPFS_GATEWAY="http://127.0.0.1:8080" npm test
+```
+
 You can find an example of how to use this in [`example/lookup.js`](example/lookup.js), which you can use like this:
 
 ```bash
+$ export IPFS_GATEWAY="http://127.0.0.1:8080"
 $ node example/lookup.js 66.6.44.4
 Result: {
   "country_name": "USA",

bin/generate.js

@@ -21,18 +21,16 @@ const carFilename = 'ipfs-geoip.car'
 const ipfs = create()
 
 // -- CLI interaction
-ipfs.id()
-  .then((id) => {
+async function generate () {
+  try {
+    const id = await ipfs.id()
     if (!id) handleNoApi()
-  }, handleNoApi)
-  .then(async () => {
     const gauge = new Gauge()
     let length = 0
     let counter = 0
     const fakeRoot = CID.parse('bafybeiczsscdsbs7ffqz55asqdf3smv6klcw3gofszvwlyarci47bgf354') // will be replaced with the real root before writer.close()
     const { writer, out } = await CarWriter.create([fakeRoot])
     Readable.from(out).pipe(fs.createWriteStream(carFilename))
-
     gen.progress.on('progress', (event) => {
       if (event.type === 'node') {
         length = event.length
@@ -53,18 +51,17 @@ ipfs.id()
 
     gauge.show('Starting', 0.0001)
     const rootCid = await gen.main(ipfs, writer)
-    return { rootCid, writer }
-  })
-  .then(async ({ rootCid, writer }) => {
     const newRoots = [CID.asCID(rootCid)]
     await writer.close()
     const fd = await fsopen(carFilename, 'r+')
     await CarWriter.updateRootsInFile(fd, newRoots)
     await fsclose(fd)
-    console.log('Finished with root CID %s, all blocks exported to ' + carFilename, rootCid)
+    console.log(`Finished with root CID ${rootCid}, all blocks exported to ${carFilename}`)
     process.exit(0)
-  })
-  .catch((err) => {
+  } catch (err) {
     console.error(err.stack)
     process.exit(1)
-  })
+  }
+}
+
+generate()

example/lookup.js

@@ -1,8 +1,7 @@
 import * as geoip from '../src/index.js'
 import { create } from 'ipfs-http-client'
 
-// This CLI tool requires Kubo RPC on 127.0.0.1:5001 to be running
-const ipfs = create(new URL('http://127.0.0.1:5001'))
+const ipfsGw = process?.env?.IPFS_GATEWAY || 'https://ipfs.io'
 
 if (process.argv.length !== 3) {
   console.log('usage: node lookup.js <ip4-adr>')
@@ -11,14 +10,14 @@ if (process.argv.length !== 3) {
 
 (async function() {
   try {
-    const result = await geoip.lookup(ipfs, process.argv[2])
+    const result = await geoip.lookup(ipfsGw, process.argv[2])
     console.log('Result: ' + JSON.stringify(result, null, 2))
   } catch (err) {
     console.log('Error: ' + err)
   }
 
   try {
-    const result = await geoip.lookupPretty(ipfs, '/ip4/' + process.argv[2])
+    const result = await geoip.lookupPretty(ipfsGw, '/ip4/' + process.argv[2])
     console.log('Pretty result: %s', result.formatted)
   } catch (err) {
     console.log('Error: ' + err)

test/lookup.spec.js

@@ -4,18 +4,18 @@ import * as geoip from '../src/index.js'
 describe('lookup via HTTP Gateway supporting application/vnd.ipld.raw responses', function () {
   this.timeout(100 * 1000)
 
-  const ipfs = process.env.CI ? 'https://ipfs.io' : 'http://127.0.0.1:8080'
+  const ipfsGW = process?.env?.IPFS_GATEWAY || 'https://ipfs.io'
 
   it('fails on 127.0.0.1', async () => {
     try {
-      await geoip.lookup(ipfs, '127.0.0.1')
+      await geoip.lookup(ipfsGW, '127.0.0.1')
     } catch (err) {
       expect(err).to.have.property('message', 'Unmapped range')
     }
   })
 
   it('looks up 66.6.44.4', async () => {
-    const result = await geoip.lookup(ipfs, '66.6.44.4')
+    const result = await geoip.lookup(ipfsGW, '66.6.44.4')
     expect(
       result
     ).to.be.eql({
@@ -33,14 +33,14 @@ describe('lookup via HTTP Gateway supporting application/vnd.ipld.raw responses'
   describe('lookupPretty', () => {
     it('fails on 127.0.0.1', async () => {
       try {
-        await geoip.lookupPretty(ipfs, '/ip4/127.0.0.1')
+        await geoip.lookupPretty(ipfsGW, '/ip4/127.0.0.1')
       } catch (err) {
         expect(err).to.have.property('message', 'Unmapped range')
       }
     })
 
     it('looks up 66.6.44.4', async () => {
-      const result = await geoip.lookupPretty(ipfs, '/ip4/66.6.44.4')
+      const result = await geoip.lookupPretty(ipfsGW, '/ip4/66.6.44.4')
       expect(
         result.formatted
       ).to.be.eql('Ashburn, VA, USA, Earth')