refs #5368 Added error try 502 & 504

README.md

@@ -37,7 +37,6 @@ refreshRate: 1000
 Exec
 ```
 > docker run --name printnatura -it --rm -v $PWD/config.local.yml:/printnatura/config.local.yml:ro -v $PWD/cupsd.conf:/etc/cups/cupsd.conf:ro -p 80:631 printnatura
-
 ```
 
 Bash

print-server.js

@@ -239,7 +239,7 @@ class PrintServer {
 
             // Request
             let pdfData;
-            for (let attempts = 0; !pdfData && attempts < 2; attempts++) {
+            for (let attempts = 0; !pdfData && attempts < 3; attempts++) {
                 try {
                     const res = await this.api({
                         method: 'get',
@@ -250,11 +250,15 @@ class PrintServer {
                     pdfData = res.data;  
                 }
                 catch (err) {
-                    if (err.name === 'AxiosError' && err.code === 'ERR_BAD_REQUEST') {
+                    if (err.name === 'AxiosError') {
                         const res = err.response;
-                        if (res.status === 401) { // Unauthorized
+                        switch(res.status) {
+                            case 401: // Unauthorized
                                 await this.getToken();
-                        } else {
+                                break;
+                            case 502 || 504: // Bad Gateway & Gateway Timeout
+                                break;
+                            default:
                                 const resMessage = JSON.parse(res.data).error.message;
                                 const resErr = new Error(`${err.message}: ${resMessage}`);
                                 resErr.stack = err.stack;
@@ -265,6 +269,9 @@ class PrintServer {
                 }
             }
 
+            if (!pdfData)
+                throw 'Could not get pdf from server'
+
             // Save PDF to disk
             const printer = jobData.printer;
             const tmpPath = conf.tmpDir;