What causes "this.$t('message.json_format_failed')" in qishibo/AnotherRedisDesktopManager?

Fix the syntax at the position the parser reports, or run the buffer through a JSON formatter/validator before saving

qishibo/AnotherRedisDesktopManager · error

this.$t('message.json_format_failed')

Error message

this.$t('message.json_format_failed')

What it means

Not a thrown exception but an app-level guard: getContent() validates the Monaco editor buffer with $util.isJson before parsing; invalid content blocks the save with a localized message and returns false. The underlying family is JSON.parse throwing SyntaxError (Unexpected token ... in JSON at position N) on unbalanced braces, single-quoted strings, trailing commas, or truncated documents.

Source

Thrown at src/components/JsonEditor.vue:57

      }

      return JSONbig.stringify(this.content, null, 4);
    },
  },
  watch: {
    // refresh
    content() {
      this.$nextTick(() => {
        this.monacoEditor.setValue(this.newContentStr);
      });
    },
  },
  methods: {
    getContent() {
      const content = this.monacoEditor.getValue();

      if (!this.$util.isJson(content)) {
        this.$message.error(this.$t('message.json_format_failed'));
        return false;
      }

      return Buffer.from(JSONbig.stringify(JSONbig.parse(content), null, 0));
    },
    getRawContent(removeJsonSpace = false) {
      let content = this.monacoEditor.getValue();

      if (removeJsonSpace) {
        if (this.$util.isJson(content)) {
          content = JSONbig.stringify(JSONbig.parse(content), null, 0);
        }
      }

      return content;
    },
    toggleCollapse() {
      this.collapseText == 'expand_all' ? this.monacoEditor.trigger('fold', 'editor.unfoldAll')

View on GitHub (pinned to c149855106)

Solutions

Fix the syntax at the position the parser reports, or run the buffer through a JSON formatter/validator before saving
Remove JS-only syntax: single quotes, trailing commas, comments, unquoted keys
Trim surrounding whitespace/BOM or any plain-text wrapper around the JSON document
Keep numbers JSONbig-compatible so formatting round-trips do not corrupt the document

Defensive patterns

Strategy: validation

Validate before calling

const content = this.monacoEditor.getValue();
if (!isJsonValid(content)) {
  this.$message.error(this.$t('message.json_format_failed'));
  return false;
}

Type guard

function isJsonValid(s) {
  if (typeof s !== 'string' || !s.trim()) return false;
  try { JSONbig.parse(s); return true; } catch { return false; }
}

Prevention

Validate before parse; never parse editor content blind
Wire Monaco's format action to a keybinding so users can auto-fix
Show the parser's reported position so the cursor can jump to the fault

When it happens

Trigger: Saving a string key edited as JSON with incomplete syntax (unclosed brace/bracket); single-quoted keys or trailing commas pasted from JS; a concatenated or partially edited JSON document; stray BOM/whitespace wrapping the JSON text.

Common situations: Editing API-cache or config values stored as JSON, pasting from JS/Python sources with non-JSON syntax, partial edits while auto-format is off, big-number documents edited by hand (this app uses JSONbig).

Related errors

AI-assisted analysis of qishibo/AnotherRedisDesktopManager@c149855106 (2026-08-22). Data as JSON: /api/errors/85e395cff26bc5b9. Report an issue: GitHub.