diff --git a/processors/createParsedDataBlob.mjs b/processors/createParsedDataBlob.ts
similarity index 71%
rename from processors/createParsedDataBlob.mjs
rename to processors/createParsedDataBlob.ts
index 9b36b6ebe..6d9667a56 100644
--- a/processors/createParsedDataBlob.mjs
+++ b/processors/createParsedDataBlob.ts
@@ -1,14 +1,14 @@
 import { Console } from 'console';
 import readline from 'readline';
-import processAllPlayers from './processAllPlayers.mjs';
-import processTeamfights from './processTeamfights.mjs';
-import processParsedData from './processParsedData.mjs';
-import processMetadata from './processMetadata.mjs';
-import processExpand from './processExpand.mjs';
-import processDraftTimings from './processDraftTimings.mjs';
-import parseSchema from './parseSchema.mjs';
+import processAllPlayers from './processAllPlayers.js';
+import processTeamfights from './processTeamfights.js';
+import processParsedData from './processParsedData.js';
+import processMetadata from './processMetadata.js';
+import processExpand from './processExpand.js';
+import processDraftTimings from './processDraftTimings.js';
+import parseSchema from './parseSchema.js';
 
-function createParsedDataBlob(entries, matchId) {
+function createParsedDataBlob(entries: any[], matchId: string) {
   const logConsole = new Console(process.stderr);
   logConsole.time('metadata');
   const meta = processMetadata(entries);
@@ -33,13 +33,13 @@ function createParsedDataBlob(entries, matchId) {
   parsedData.radiant_xp_adv = ap.radiant_xp_adv;
   return parsedData;
 }
-const entries = [];
+const entries: any[] = [];
 let complete = false;
 const matchId = process.argv[2];
 const parseStream = readline.createInterface({
   input: process.stdin,
 });
-parseStream.on('line', (e) => {
+parseStream.on('line', (e: any) => {
   e = JSON.parse(e);
   entries.push(e);
   if (e.type === 'epilogue') {
@@ -49,7 +49,7 @@ parseStream.on('line', (e) => {
 parseStream.on('close', () => {
   if (complete) {
     const parsedData = createParsedDataBlob(entries, matchId);
-    process.stdout.write(JSON.stringify(parsedData), null, (err) => {
+    process.stdout.write(JSON.stringify(parsedData), undefined, (err) => {
       process.exit(Number(err));
     });
   } else {
diff --git a/processors/parseSchema.mjs b/processors/parseSchema.ts
similarity index 100%
rename from processors/parseSchema.mjs
rename to processors/parseSchema.ts
diff --git a/processors/performanceOthers.mjs b/processors/performanceOthers.ts
similarity index 100%
rename from processors/performanceOthers.mjs
rename to processors/performanceOthers.ts
diff --git a/processors/populate.mjs b/processors/populate.ts
similarity index 98%
rename from processors/populate.mjs
rename to processors/populate.ts
index 19c66c35a..993920bb3 100644
--- a/processors/populate.mjs
+++ b/processors/populate.ts
@@ -1,4 +1,4 @@
-import performanceOthers from './performanceOthers.mjs';
+import performanceOthers from './performanceOthers.js';
 function populate(e, container, meta) {
   let t;
   switch (e.type) {
diff --git a/processors/processAllPlayers.mjs b/processors/processAllPlayers.ts
similarity index 100%
rename from processors/processAllPlayers.mjs
rename to processors/processAllPlayers.ts
diff --git a/processors/processDraftTimings.mjs b/processors/processDraftTimings.ts
similarity index 100%
rename from processors/processDraftTimings.mjs
rename to processors/processDraftTimings.ts
diff --git a/processors/processExpand.mjs b/processors/processExpand.ts
similarity index 100%
rename from processors/processExpand.mjs
rename to processors/processExpand.ts
diff --git a/processors/processMetadata.mjs b/processors/processMetadata.ts
similarity index 96%
rename from processors/processMetadata.mjs
rename to processors/processMetadata.ts
index ba0774a5a..15750611d 100644
--- a/processors/processMetadata.mjs
+++ b/processors/processMetadata.ts
@@ -1,7 +1,7 @@
 /**
  * Given an event stream, extracts metadata such as game zero time and hero to slot/ID mappings.
  * */
-function processMetadata(entries) {
+function processMetadata(entries: any[]) {
   const heroToSlot = {};
   const slotToPlayerslot = {};
   const heroIdToSlot = {};
@@ -47,6 +47,7 @@ function processMetadata(entries) {
     slot_to_playerslot: slotToPlayerslot,
     hero_id_to_slot: heroIdToSlot,
     ability_levels: abilityLevels,
+    match_id: '',
   };
 }
 export default processMetadata;
diff --git a/processors/processMultiKillStreaks.mjs b/processors/processMultiKillStreaks.ts
similarity index 100%
rename from processors/processMultiKillStreaks.mjs
rename to processors/processMultiKillStreaks.ts
diff --git a/processors/processParsedData.mjs b/processors/processParsedData.ts
similarity index 85%
rename from processors/processParsedData.mjs
rename to processors/processParsedData.ts
index 1c6138e96..5eeee0cf9 100644
--- a/processors/processParsedData.mjs
+++ b/processors/processParsedData.ts
@@ -1,4 +1,4 @@
-import populate from './populate.mjs';
+import populate from './populate.js';
 function processParsedData(entries, container, meta) {
   for (let i = 0; i < entries.length; i += 1) {
     const e = entries[i];
diff --git a/processors/processTeamfights.mjs b/processors/processTeamfights.ts
similarity index 99%
rename from processors/processTeamfights.mjs
rename to processors/processTeamfights.ts
index db7e00262..813500ccc 100644
--- a/processors/processTeamfights.mjs
+++ b/processors/processTeamfights.ts
@@ -1,4 +1,4 @@
-import populate from './populate.mjs';
+import populate from './populate.js';
 /**
  * A processor to compute teamfights that occurred given an event stream
  * */
diff --git a/processors/processUploadProps.mjs b/processors/processUploadProps.ts
similarity index 100%
rename from processors/processUploadProps.mjs
rename to processors/processUploadProps.ts