diff --git a/src/middleware/route-ratelimit.js b/src/middleware/route-ratelimit.js
index 1df3284..08e3623 100644
--- a/src/middleware/route-ratelimit.js
+++ b/src/middleware/route-ratelimit.js
@@ -61,6 +61,10 @@ class RateLimits {
     redisClient.disconnect()
   }
 
+  async wipeRedis () {
+    await redisClient.flushdb()
+  }
+
   // CT 2/7/20: Older rate-limiting code that does not scale well.
   /*
     This function controls the tierd request-per-minute (RPM) rate limits.
diff --git a/src/routes/v3/full-node/rawtransactions.js b/src/routes/v3/full-node/rawtransactions.js
index 515c989..0459c5f 100644
--- a/src/routes/v3/full-node/rawtransactions.js
+++ b/src/routes/v3/full-node/rawtransactions.js
@@ -395,6 +395,13 @@ class RawTransactions {
         return res.json({ error: 'txid can not be empty' })
       }
 
+      if (txid.length !== 64) {
+        res.status(400)
+        return res.json({
+          error: `parameter 1 must be of length 64 (not ${txid.length})`
+        })
+      }
+
       const data = await _this.getRawTransactionsFromNode(txid, verbose)
 
       return res.json(data)
diff --git a/src/routes/v3/slp.js b/src/routes/v3/slp.js
index 97cb386..6bea4d7 100644
--- a/src/routes/v3/slp.js
+++ b/src/routes/v3/slp.js
@@ -27,8 +27,9 @@ util.inspect.defaultOptions = { depth: 5 }
 // https://gist.github.com/christroutner/fc717ca704dec3dded8b52fae387eab2
 const SLPDB_PASS = process.env.SLPDB_PASS ? process.env.SLPDB_PASS : 'BITBOX'
 
-// const transactions = require("./insight/transaction")
-const rawtransactions = require('./full-node/rawtransactions')
+// const rawtransactions = require('./full-node/rawtransactions')
+const RawTransactions = require('./full-node/rawtransactions')
+const rawTransactions = new RawTransactions()
 
 // Setup REST and TREST URLs used by slpjs
 // Dev note: this allows for unit tests to mock the URL.
@@ -1381,7 +1382,7 @@ async function txDetails (req, res, next) {
 
     // Get information on the transaction from Insight API.
     // const retData = await transactions.transactionsFromInsight(txid)
-    const retData = await rawtransactions.getRawTransactionsFromNode(txid, true)
+    const retData = await rawTransactions.getRawTransactionsFromNode(txid, true)
     // console.log(`retData: ${JSON.stringify(retData, null, 2)}`)
 
     // Return both the tx data from Insight and the formatted token information.
diff --git a/test/v3/rate-limits.js b/test/v3/rate-limits.js
index 01f8e37..54319e9 100644
--- a/test/v3/rate-limits.js
+++ b/test/v3/rate-limits.js
@@ -29,7 +29,7 @@ const jwt = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6IjVkYWRlM2Y1NzM5ZTZjMG
 describe('#route-ratelimits & jwt-auth', () => {
   let sandbox
 
-  before(() => {
+  before(async () => {
     // Save existing environment variables.
     // originalEnvVars = {
     //   BITCOINCOM_BASEURL: process.env.BITCOINCOM_BASEURL,
@@ -39,6 +39,10 @@ describe('#route-ratelimits & jwt-auth', () => {
     // }
 
     if (!process.env.JWT_AUTH_SERVER) { process.env.JWT_AUTH_SERVER = 'http://fakeurl.com/' }
+
+    // Wipe the Redis DB, which prevents false negatives when running integration
+    // tests back-to-back.
+    await rateLimits.wipeRedis()
   })
 
   // Setup the mocks before each test.
diff --git a/test/v3/raw-transactions.js b/test/v3/raw-transactions.js
index cd28992..7396f1a 100644
--- a/test/v3/raw-transactions.js
+++ b/test/v3/raw-transactions.js
@@ -133,7 +133,7 @@ describe('#Raw-Transactions', () => {
       process.env.RPC_BASEURL = 'http://fakeurl/api/'
 
       req.params.hex =
-              '0200000001b9b598d7d6d72fc486b2b3a3c03c79b5bade6ec9a77ced850515ab5e64edcc21010000006b483045022100a7b1b08956abb8d6f322aa709d8583c8ea492ba0585f1a6f4f9983520af74a5a0220411aee4a9a54effab617b0508c504c31681b15f9b187179b4874257badd4139041210360cfc66fdacb650bc4c83b4e351805181ee696b7d5ab4667c57b2786f51c413dffffffff0210270000000000001976a914eb4b180def88e3f5625b2d8ae2c098ff7d85f66488ac786e9800000000001976a914eb4b180def88e3f5625b2d8ae2c098ff7d85f66488ac00000000'
+        '0200000001b9b598d7d6d72fc486b2b3a3c03c79b5bade6ec9a77ced850515ab5e64edcc21010000006b483045022100a7b1b08956abb8d6f322aa709d8583c8ea492ba0585f1a6f4f9983520af74a5a0220411aee4a9a54effab617b0508c504c31681b15f9b187179b4874257badd4139041210360cfc66fdacb650bc4c83b4e351805181ee696b7d5ab4667c57b2786f51c413dffffffff0210270000000000001976a914eb4b180def88e3f5625b2d8ae2c098ff7d85f66488ac786e9800000000001976a914eb4b180def88e3f5625b2d8ae2c098ff7d85f66488ac00000000'
 
       // Mock the timeout error.
       sandbox.stub(uut.axios, 'request').throws({ code: 'ECONNABORTED' })
@@ -159,7 +159,7 @@ describe('#Raw-Transactions', () => {
       process.env.RPC_BASEURL = 'http://fakeurl/api/'
 
       req.params.hex =
-              '0200000001b9b598d7d6d72fc486b2b3a3c03c79b5bade6ec9a77ced850515ab5e64edcc21010000006b483045022100a7b1b08956abb8d6f322aa709d8583c8ea492ba0585f1a6f4f9983520af74a5a0220411aee4a9a54effab617b0508c504c31681b15f9b187179b4874257badd4139041210360cfc66fdacb650bc4c83b4e351805181ee696b7d5ab4667c57b2786f51c413dffffffff0210270000000000001976a914eb4b180def88e3f5625b2d8ae2c098ff7d85f66488ac786e9800000000001976a914eb4b180def88e3f5625b2d8ae2c098ff7d85f66488ac00000000'
+        '0200000001b9b598d7d6d72fc486b2b3a3c03c79b5bade6ec9a77ced850515ab5e64edcc21010000006b483045022100a7b1b08956abb8d6f322aa709d8583c8ea492ba0585f1a6f4f9983520af74a5a0220411aee4a9a54effab617b0508c504c31681b15f9b187179b4874257badd4139041210360cfc66fdacb650bc4c83b4e351805181ee696b7d5ab4667c57b2786f51c413dffffffff0210270000000000001976a914eb4b180def88e3f5625b2d8ae2c098ff7d85f66488ac786e9800000000001976a914eb4b180def88e3f5625b2d8ae2c098ff7d85f66488ac00000000'
 
       // Mock the timeout error.
       sandbox.stub(uut.axios, 'request').throws({ code: 'ECONNREFUSED' })
@@ -630,12 +630,12 @@ describe('#Raw-Transactions', () => {
       req.body.txids = ['abc123']
 
       const result = await uut.getRawTransactionBulk(req, res)
-      // console.log(`result: ${util.inspect(result)}`)
 
       assert.hasAllKeys(result, ['error'])
       assert.equal(res.statusCode, 400, 'HTTP status code 400 expected.')
       assert.include(result.error, 'parameter 1 must be of length 64 (not 6)')
     })
+
     it('returns proper error when downstream service stalls', async () => {
       // Save the existing RPC URL.
       const savedUrl2 = process.env.RPC_BASEURL
@@ -765,9 +765,10 @@ describe('#Raw-Transactions', () => {
 
       const result = await uut.getRawTransactionSingle(req, res)
       // console.log(`result: ${util.inspect(result)}`)
+      // console.log(`res.statusCode: ${res.statusCode}`)
 
       assert.hasAllKeys(result, ['error'])
-      assert.equal(res.statusCode, 500, 'HTTP status code 400 expected.')
+      assert.equal(res.statusCode, 400, 'HTTP status code 400 expected.')
       assert.include(result.error, 'parameter 1 must be of length 64 (not 6)')
     })
     it('returns proper error when downstream service stalls', async () => {
@@ -904,12 +905,14 @@ describe('#Raw-Transactions', () => {
       assert.include(result.error, 'Encountered empty hex')
     })
 
-    it('should throw 500 error if hex is invalid', async () => {
+    it('should throw 400 error if hex is invalid', async () => {
       // Mock the RPC call for unit tests.
       if (process.env.TEST === 'unit') {
-        sandbox
-          .stub(uut.axios, 'request')
-          .rejects('TX decode failed')
+        sandbox.stub(uut.axios, 'request').rejects({
+          response: {
+            data: { error: { code: -22, message: 'TX decode failed' } }
+          }
+        })
       }
 
       req.body.hexes = ['abc123']
@@ -918,9 +921,10 @@ describe('#Raw-Transactions', () => {
       // console.log(`result: ${util.inspect(result)}`)
 
       assert.hasAllKeys(result, ['error'])
-      assert.equal(res.statusCode, 500, 'HTTP status code 400 expected.')
+      assert.equal(res.statusCode, 400, 'HTTP status code 400 expected.')
       assert.include(result.error, 'TX decode failed')
     })
+
     it('returns proper error when downstream service stalls', async () => {
       // Save the existing RPC URL.
       const savedUrl2 = process.env.RPC_BASEURL
@@ -978,9 +982,12 @@ describe('#Raw-Transactions', () => {
 
       // Mock the RPC call for unit tests.
       if (process.env.TEST === 'unit') {
-        sandbox
-          .stub(uut.axios, 'request')
-          .resolves({ data: { result: 'aef8848396e67532b42008b9d75b5a5a3459a6717740f31f0553b74102b4b118' } })
+        sandbox.stub(uut.axios, 'request').resolves({
+          data: {
+            result:
+              'aef8848396e67532b42008b9d75b5a5a3459a6717740f31f0553b74102b4b118'
+          }
+        })
       }
 
       req.body.hexes = [
@@ -1059,18 +1066,21 @@ describe('#Raw-Transactions', () => {
 
       // Mock the RPC call for unit tests.
       if (process.env.TEST === 'unit') {
-        sandbox
-          .stub(uut.axios, 'request')
-          .rejects('TX decode failed')
+        sandbox.stub(uut.axios, 'request').rejects({
+          response: {
+            data: { error: { code: -22, message: 'TX decode failed' } }
+          }
+        })
       }
 
       const result = await uut.sendRawTransactionSingle(req, res)
       // console.log(`result: ${util.inspect(result)}`)
 
       assert.hasAllKeys(result, ['error'])
-      assert.equal(res.statusCode, 500, 'HTTP status code 400 expected.')
+      assert.equal(res.statusCode, 400, 'HTTP status code 400 expected.')
       assert.include(result.error, 'TX decode failed')
     })
+
     it('returns proper error when downstream service stalls', async () => {
       // Save the existing RPC URL.
       const savedUrl2 = process.env.RPC_BASEURL
@@ -1121,6 +1131,7 @@ describe('#Raw-Transactions', () => {
       // Restore the saved URL.
       process.env.RPC_BASEURL = savedUrl2
     })
+
     it('should GET /sendRawTransaction/:hex', async () => {
       // This is a difficult test to run as transaction hex is invalid after a
       // block confirmation. So the unit tests simulates what the output 'should'
@@ -1128,9 +1139,12 @@ describe('#Raw-Transactions', () => {
 
       // Mock the RPC call for unit tests.
       if (process.env.TEST === 'unit') {
-        sandbox
-          .stub(uut.axios, 'request')
-          .resolves({ data: { result: 'aef8848396e67532b42008b9d75b5a5a3459a6717740f31f0553b74102b4b118' } })
+        sandbox.stub(uut.axios, 'request').resolves({
+          data: {
+            result:
+              'aef8848396e67532b42008b9d75b5a5a3459a6717740f31f0553b74102b4b118'
+          }
+        })
       }
 
       req.params.hex =